Bosch Power Tools GCM12SD T4B Manuel utilisateur

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GCM12SD

IMPORTANT: IMPORTANTE: IMPORTANT :

Read Before Using Leer antes de usar Lire avant usage

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Operating/Safety Instructions

Instrucciones de funcionamiento y seguridad

Consignes de fonctionnement/sécurité

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 1

2;2?.9&.32AF%B92@

3<?2;05A<='<<9@

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l 22=D<?8.?2.092.;.;1D29996ACluttered

benches and dark areas invite accidents.

l < ;<A <=2?.A2 =<D2? A<<9@ 6; 2E=9<@6C2

.A:<@=52?2@ @B05 .@ 6; A52 =?2@2;02 <3

39.::./92 96>B61@ 4.@2@ <? 1B@A Power

tools create sparks which may ignite the dust or

fumes.

l 22=/F@A.;12?@05691?2;.;1C6@6A<?@.D.F

D5692 <=2?.A6;4 . =<D2? A<<9 Distractions

can cause you to lose control.

l &A<?26192A<<9@<BA<3?2.05<305691?2;.;1

<A52? B;A?.6;21 =2?@<;@  Tools are danger-

ous in the hands of untrained users.

l < ;<A 92.C2 A<<9 ?B;;6;4 B;.AA2;121 AB?;

=<D2?<33Do not leave tool until it comes to a

complete stop.

l ! *#%&#$  $%## with pad

lock, master switches or by removing starter

keys.

920A?60.9&.32AF

l 23<?2 =9B446;4 6; A52 A<<9 /2 02?A.6; A52

<BA92A C<9A.42 @B==9621 6@ 0<:=.A6/92 D6A5

A52C<9A.42:.?821<;A52;.:2=9.A2D6A56;

 An outlet voltage incompatible with that

specified on the nameplate can result in serious

hazards and damage to the tool.

l <B/926;@B9.A21 A<<9@ .?2 2>B6==21 D6A5 .

=<9.?6G21 =9B4 <;2 /9.12 6@ D612?A5.; A52

<A52?'56@=9B4D69936A6;.=<9.?6G21<BA92A

<;9F<;2D.F3A52=9B41<2@;<A36A3B99F6;

A52<BA92A?2C2?@2A52=9B436A@A6991<2@;<A

36A 0<;A.0A . >B.963621 2920A?606.; A<

6;@A.99.=<9.?6G21<BA92A<;<A05.;42A52

=9B46; .;F D.FDouble insulation eliminates

the need for the three-wire grounded power

cord and grounded power supply.

l C<61/<1F0<;A.0AD6A54?<B;121@B?3.02@

@B05.@=6=2@?.16.A<?@?.;42@.;1?23?64

2?.A<?@ There is an increased risk of electric

shock if your body is grounded.

l < ;<A 2E=<@2 =<D2? A<<9@ A< ?.6; <? D2A

0<;16A6<;@ Water entering a power tool will

increase the risk of electric shock.

l <;<A./B@2A520<?1"2C2?B@2A520<?1

A< 0.??F A52 A<<9@ <? =B99 A52 =9B4 3?<: .;

<BA92A22=0<?1.D.F3?<:52.A<69@5.?=

2142@ <? :<C6;4 =.?A@  %2=9.02 1.:.421

0<?1@6::216.A29FDamaged cords increase

the risk of electric shock.

l *52;<=2?.A6;4.=<D2?A<<9<BA@612B@2.;

<BA1<<? 2EA2;@6<; 0<?1 :.?821 K*L <?

K*LThese cords are rated for outdoor use and

reduce the risk of electric shock.

$2?@<;.9&.32AF

l &A.F.92?AD.A05D5.AF<B.?21<6;4.;1B@2

0<::<; @2;@2 D52; <=2?.A6;4 . =<D2?

A<<9 A moment of inattention or use of drugs,

alcohol or medication while operating power

tools can be dangerous.

l ?2@@=?<=2?9F<;<AD2.?9<<@209<A56;4

<? 72D29?F  <;A.6; 9<;4 5.6? 22= F<B?

5.6?09<A56;4.;149<C2@.D.F3?<::<C6;4

=.?A@Loose clothes, jewelry or long hair can be

caught in moving parts. Roll long sleeves

above elbows. Rubber gloves and non-skid

footwear are recommended when working out-

doors.

l C<61.00612;A.9@A.?A6;42@B?2@D6A056@

K#L/23<?2=9B446;46; Carrying tools with

your finger on the switch or plugging in tools

that have the switch “ON” invites accidents.

l %2:<C2.17B@A6;482F@<?D?2;052@/23<?2

AB?;6;4A52A<<9K#"L A wrench or a key that

is left attached to a rotating part of the tool will

be thrown.

l < ;<A <C2??2.05 822= =?<=2? 3<<A6;4 .;1

/.9.;02.A .99A6:2@ Proper footing and bal-

ance enable better control of the tool in unex-

pected situations.

l < ;<A @A.;1 <; A<<9 <? 6A@ @A.;1 Serious

injury may occur if the tool is tipped or if the cut-

ting tool is accidentally contacted. Do not store

materials on or near the tool such that it is nec-

essary to stand on the tool or its stand to reach

them.



Safety

“READ ALL INSTRUCTIONS” — Failure to follow the SAFETY RULES identified by

BULLET ( ) symbol listed BELOW, and other safety precautions, may result in serious personal

injury.

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BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 2

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l (@2 @.32AF 2>B6=:2;A 9D.F@ D2.? @.32AF

4<4492@ Dust mask, safety shoes, hard hat or

hearing protection must be used for appropriate

c

onditions. Everyday eyeglasses only have

impact-resistant lenses, they are NOT safety

glasses.

'<<9(@2.;1.?2

l (@209.:=@<?<A52?=?.0A60.9D.FA<@20B?2

.;1 @B==<?A A52 D<?8=6202 A< . @A./92 =9.A

3<?: Holding the workpiece by hand or against

your body is unstable. It allows for workpiece to

shift, causes binding of the tool and loss of

control.

l < ;<A 3<?02 A<<9 (@2 A52 0<??20A A<<9 3<?

F<B?.==960.A6<; The correct tool will do the job

better and safer at the rate for which it is

designed. Do not use the tool for purpose not

intended - for example, do not use the miter saw

for slicing meats.

l <;<AB@2A<<963@D6A051<2@;<AAB?;6AK#"L

<?K#L Any tool that cannot be controlled with

the switch is dangerous.

l 6@0<;;20A A52 =9B4 3?<: A52 =<D2? @<B?02

/23<?2:.86;4.;F .17B@A:2;A@<?05.;46;4

.002@@<?62@ Such preventive safety measures

reduce the risk of starting the tool accidentally.

l 22=0BAA6;4A<<9@@5.?=.;1092.; Properly

maintained tools, with sharp cutting edges, are

less likely to bind and easier to control. When

mounting saw blades, be certain that the arrow

on the blade matches the direction of the arrow

marked on the tool and that the teeth are also

pointing in the same direction.

l ;@=20A 4B.?1@ /23<?2 B@6;4 . A<<9 22=

4B.?1@ 6; =9.02 5208 :<C6;4 =.?A@ 3<?

/6;16;4<?.;F<A52?0<;16A6<;A5.A:.F.3320A

A52;<?:.9<=2?.A6<;<?@.32AF32.AB?2@<3A52

A<<9 3 1.:.421 5.C2 A<<9 @2?C6021 /23<?2

B@6;4 A52 A<<9 Many accidents are caused by

poorly maintained tools.

l <;<A .9A2? <? :6@B@2 A<<9 Any alteration or

modification is a misuse and may result in seri-

ous personal injury.

l '52 B@2 <3 .;F <A52? .002@@<?62@ ;<A

@=20636216;A56@:.;B.9:.F0?2.A2.5.G.?1

Accessories that may be suitable for one type of

tool may become hazardous when used on an

inappropriate tool.

&2?C602

l '

<<9 @2?C602 :B@A /2 =2?3<?:21 <;9F /F

>B.963621 ?2=.6? =2?@<;;29 Service or mainte-

nance performed by unqualified personnel may

result in misplacing internal wires and compo-

nents which could cause serious hazard.

l *52; @2?C606;4 . A<<9 B@2 <;9F 612;A60.9

?2=9.02:2;A =.?A@ <99<D 6;@A?B0A6<;@ 6;

A52 !.6;A2;.;02 .;1 B/?60.A6<; @20A6<; <3

A56@ :.;B.9 Use of unauthorized parts or

failure to follow maintenance instructions may

create a hazard.

&.32AF%B92@3<?!6A2?&.D@

l To reduce risk of injury, use saw blade rated

3800/min (RPM) or greater.

l (@2 09.:=@ A< @B==<?A D<?8=6202 D52;2C2?

=<@@6/923@B==<?A6;4A52D<?8=6202/F5.;1

F<B :B@A .9D.F@ 822= 5.;1 <BA@612 <3 K"<

.;1L .?2. .@ :.?821 D6A5 . @F:/<9 <; A52

/.@2<;<AB@2A56@@.DA<0BA=6202@A5.A.?2

A<<@:.99A</2@20B?29F09.:=21Your hand, if

placed inside the “No Hands” region, can easily

slip or be pulled into the blade.

l <;<A?2.056;/.08<3A52@.D/9.12/256;1

A52 32;02 D6A5 26A52? 5.;1 A< 5<91 1<D; <?

@B==<?AA52D<?8=6202?2:<C2D<<1@0?.=@<?

3<? .;F <A52? ?2.@<; The proximity of the

spinning saw blade to your hand may not be

obvious and you may be seriously injured.

l "2C2? 0?<@@ F<B? 5.;1 <C2? 6;A2;121 96;2 <3

0BAA6;4 Supporting the workpiece “cross hand-

ed,” i.e., holding the left side of the workpiece with

your right hand, is very dangerous.

l 9D.F@ 16@0<;;20A A52 =<D2? 0<?1 3?<: A52

=<D2?@<B?02/23<?2:.86;4.;F.17B@A:2;A@

<? .AA.056;4 .;F .002@@<?62@ You may

unintentionally start the saw, leading to serious

personal injury.

l !6A2?@.D@.?26;A2;121A<0BAD<<1<?D<<1

9682 =?<1B0A@ A52F 0.;;<A /2 B@21 D6A5

./?.@6C2 0BA<33 D5229@ 3<? 0BAA6;4 32??<B@

:.A2?6.9 @B05 .@ /.?@ ?<1@ @AB1@ 2A0

<D2C2?630BAA6;4:.A2?6.9@9682.9B:6;B:<?

<A52?;<;32??<B@:2A.9@B@2<;9F@.D/9.12@

@=206360.99F ?20<::2;121 3<? ;<;32??<B@

:2A.90BAA6;4Cutting ferrous materi-als causes

excessive sparking and will damage the lower

guard and overload the motor.

Safety

“

READ ALL INSTRUCTIONS” — Failure to follow the SAFETY RULES identified by

BULLET (

l) symbol listed BELOW, and other safety precautions, may result in serious

personal injury.

*%""

!

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 3

l ;@=20A F<B? D<?8=6202 /23<?2 0BAA6;4 3

D<?8=62026@/<D21<?D.?=2109.:=6AD6A5

A52 <BA@612 /<D21 3.02 A<D.?1 A52 32;02



9D.F@:.8202?A.6;A5.AA52?26@;<4.=/2

A

D22;A52D<?8=620232;02.;1A./92.9<;4

A

5296;2<3A520BA Bent or warped workpieces

can twist or rock and may cause binding on the

spinning saw blade while cutting. Also, make

sure there are no nails or foreign objects in the

workpiece.

l <;<AB@2A52@.DB;A69A52A./926@092.?<3

.99A<<9@D<<1@0?.=@2A02E02=AA52D<?8

=6202  Small debris, loose pieces of wood or

other objects that contact the revolving blade

can be thrown with high speed at the operator.

l <;<A3221D<?8=62026;A<A52/9.12<?0BA

K3?225.;1L 6; .;F D.F *<?8=6202 :B@A /2

@A.A6<;.?F .;1 09.:=21 <? /?.021 /F F<B?

5.;1 Saw must be fed through the workpiece

smoothly and at a rate which will not overload

the saw’s motor.

l BA <;9F <;2 D<?8=6202 .A . A6:2 Multiple

workpieces cannot be adequately clamped or

braced and may bind on the blade or shift dur-

ing cutting.

l 2 02?A.6; A52 :6A2? @.D 6@ :<B;A21 <?

=9.021<;. 92C29 36?: D<?8 @B?3.02 /23<?2

B@6;4 A level and firm work surface reduces

the risk of the miter saw becoming unstable.

l $9.; F<B? D<?8 $?<C612 .12>B.A2 @B==<?A 

.002@@<?62@ @B05 .@ A./92@ @.D 5<?@2@

A./922EA2;@6<;2A03<?D<?8=6202@D612?<?

9<;42? A5.; A52 A./92 A<= @22 =.42 .

Workpieces longer or wider than the miter saw

table can tip if not securely supported. If the

cutoff piece or workpiece tips, it can lift the lower

guard or be thrown by the spinning blade.

l < ;<A B@2 .;<A52? =2?@<; .@ . @B/@A6ABA2

3<? . A./92 2EA2;@6<; <? .@ .116A6<;.9 @B=

=<?A Unstable support for the workpiece can

cause the blade to bind or the workpiece to shift

during the cutting operation, pulling you and the

helper into the spinning blade.

l '52 0BA<33 =6202 :B@A ;<A /2 7.::21

<? =?2@@B?21 /F .;F <A52? :2.;@

.4.6;@A A52 @=6;;6;4 @.D /9.12 If confined,

i.e., using length stops, it could get wedged

against the blade and thrown violently.

l 9D.F@B@2.09.:=<?.36EAB?212@64;21A<

=?<=2?9F @B==<?A ?<B;1 :.A2?6.9 @B05 .@

1<D29?<1@<?AB/6;4Rods have a tendency

to roll while being cut, causing the blade to “bite”

and pull the work with your hand into the blade.

l *52; 0BAA6;4 6??24B9.?9F @5.=21 D<?8

=6202@=9.;F<B?D<?8@<6AD699;<A@96=.;1

=6;05A52/9.12.;1/2A<?;3?<:F<B?5.;1

A piece of molding, for example, must lie flat or

be held by a fixture or jig that will not let it twist,

rock or slip while being cut.

l 2A A52 /9.12 ?2.05 3B99 @=221 /23<?2 0<;

A.0A6;4 A52 D<?8=6202 This will help avoid

thrown workpieces.

l 3A52D<?8=6202<? /9.12 /20<:2@ 7.::21

<? /<4421 1<D; AB?; :6A2? @.D K#L /F

?292.@6;4 @D6A05 *.6A 3<? .99 :<C6;4 =.?A@

A<@A<=.;1B;=9B4A52:6A2?@.DA52;D<?8

A<3?22A527.::21:.A2?6.9Continued saw-

ing with jammed workpiece could cause loss of

control or damage to miter saw.

l ?.86;4 .0A6<; <3 A52 @.D 0.B@2@ A52 @.D

52.1 A< 72?8 1<D;D.?1 2 ?2.1F 3<? A56@

?2.0A6<; when making an incomplete cut or

when releasing the switch before the head is

completely in the DOWN position.

l 3A2? 36;6@56;4 A52 0BA ?292.@2 A52 @D6A05

5<91A52@.D.?:1<D;.;1D.6A3<?/9.12A<

@A<= /23<?2 ?2:<C6;4 D<?8 <? 0BA<33 =6202 

3 /9.12 1<2@ ;<A @A<= D6A56; 36C2  @20

<;1@B;=9B4A52@.D.;13<99<DA526;@A?B0

A6<;@ 6; A52 '?<B/92@5<<A6;4 @20A6<;

REACHING WITH YOUR HAND UNDER A

COASTING BLADE IS DANGEROUS!

l '52?2 .?2 .116A6<;.9 @.32AF 6;@A?B0A6<;@

3<? =.?A60B9.? <=2?.A6<;@ <3 A52 @.D 6; A52

&.D#=2?.A6<;@@20A6<;%2.1A52?2@A<3A52

:.;B.93<?@.32<=2?.A6<;

l '52 !& :6A2? @.D 5.@ .; 2EA?2:29F

@:<<A5 .0A6<; .;1 ?2>B6?2@ A52 <=2?.A<? A<

36?:9F4?6=A525.;192/23<?2AB?;6;4K#"LA52

@.D <? @9612.0A6<; 0BAA6;4 36?@A 4?6= A52

@D6A055.;1926;A52($=<@6A6<;.;1=B99<BA

/.08A<A523B99F2EA2;121=<@6A6<;'52/9.12

:B@A 092.? A52 D<?8=6202 !.82 02?A.6; A52

09.:= 1<2@ ;<A 6;A2?32?2 D6A5 A52 4B.?1 .;1

52.1 .@@2:/9F &20<;1 AB?; @.D K#"L .;1

9<D2? A52 @.D A< A52 A./92 '52; $(& @.D

A5?<B45A52D<?8=6202%292.@2A52@D6A05.;1

D.6A 3<? A52 /9.12 A< 0<:=92A29F @A<= /23<?2

?.6@6;4A52 52.1 .@@2:/9F .;1?2:<C6;4 A52

D<?8=6202Never “pullcut,” since blade may climb

the workpiece, causing KICKBACK.

l <? 05<=.0A6<; 0BAA6;4 :<C2 A52 52.1

.@@2:/9F A< A52 ?2.? .@ 3.? .@ 6A D699 4< .;1

2;4.42A52:205.;6@:9<08'52;AB?;A52@.D

K#"L .;1 9<D2? A52 52.1 .@@2:/9F A< :.82

A52 0BA %292.@2 A52 @D6A05 .;1 D.6A 3<? A52

/9.12 A< 0<:=92A29F @A<= /23<?2 ?.6@6;4 A52

52.1.@@2:/9F .;1 ?2:<C6;4 A52 D<?8=6202

Failure to lock the mechanism can cause the blade

to suddenly climb up on the top of the

workpiece and force itself toward you.

Safety

“READ ALL INSTRUCTIONS” — Failure to follow the SAFETY RULES identified by

BULLET (l) symbol listed BELOW, and other safety precautions, may result in serious

personal injury.

*%""

!

K&)'&"&'%('#"&L



BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 4



l <;<A.99<D3.:696.?6AF4.6;213?<:3?2>B2;A

B

@2 <3 F<B? :6A2? @.D A< /20<:2

0<::<;=9.02 Always remember that a careless

fraction of a second is sufficient to inflict severe

injury.

l THINK SAFETY! SAFETY IS A COMBINATION

OF OPERATOR’S COMMON SENSE,

KNOWLEDGE OF THE SAFETY AND

OPERATING INSTRUCTIONS AND

ALERTNESS AT ALL TIMES WHEN THE MITER

SAW IS BEING USED.

'*%""&&#*" #*

"#("#",#(%'## 

'& *%""& % #" ,  #""&

#%!#'!#%' &',%( &

" $%('#"& '' $$% " ,#(%

#*"%N& !"(  ', &%) & 

%!"%# &',%( &"#%

&#$%'#"#'&!'%&*

&<:2 1B@A 0?2.A21 /F =<D2?

@

.;16;4@.D6;44?6;16;41?6996;4

.;1 <A52? 0<;@A?B0A6<; .0A6C6A62@ 0<;A.6;@

052:60.9@8;<D;A<0.B@20.;02?/6?A512320A@<?

<A52??2=?<1B0A6C25.?:&<:22E.:=92@<3A52@2

052:60.9@.?2

• Lead from lead-based paints,

• Crystalline silica from bricks and cement and other

masonry products, and

• Arsenic and chromium from chemically treated

lumber.

Your risk from these exposures varies, depending on

how often you do this type of work. To reduce your

exposure to these chemicals: work in a well-ventilated

area, and work with approved safety equipment, such

as those dust masks that are specially designed to filter

out microscopic particles.

Do Not Carry the

Saw by this handle.

No lleve la sierra

por este mango.

Ne transportez pas la

scie par sa poignée.

DESIGNATED NO - CARRY

AREA - A DANGER ZONE -

NEVER LIFT OR CARRY

SAW BY THE MAIN SWITCH

HANDLE.

DESIGNATED PINCH POINT

AREA - A DANGER ZONE -

AVOID PLACING HANDS,

FINGERS OR ARMS IN THESE

AREAS. NEVER ATTEMPT TO

MOVE OR LIFT THE SAW IN

THESE AREAS.

DESIGNATED DANGER

ZONES - AVOID POSITIONING

HANDS, FINGERS OR ARMS

IN THE AREA DESIGNATED

BY THIS SYMBOL.

Safety

“READ ALL INSTRUCTIONS” — Failure to follow the SAFETY RULES identified by

BULLET (l) symbol listed BELOW, and other safety precautions, may result in serious

personal injury.

K&)'&"&'%('#"&L

*%""

!

*%""

!

*%""

!

Do not use the Bosch GCM12SD miter saw to cut fiber cement board. The Bosch miter saw is not

intended to cut fiber cement board.

*%""

!

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 5



<B/92;@B9.A21'<<9@

D

ouble insulation is a design concept used in

electric power tools which eliminates the need for the

three-wire grounded power cord and grounded power

supply system. It is a recognized and approved

system by Underwriter’s Laboratories, CSA and

Federal OSHA authorities.

l Servicing of a tool with double insulation requires

care and knowledge of the system and should be

performed only by a qualified service technician.

l WHEN SERVICING, USE ONLY IDENTICAL

REPLACEMENT PARTS.

l POLARIZED PLUGS. Your tool is equipped with

a polarized plug (one blade is wider than the

other); this plug will fit in a polarized outlet only

one way. If the plug does not fit fully in the outlet,

reverse the plug. If it still does not fit, contact a

qualified electrician to install the proper outlet. To

reduce the risk of electrical shock, do not change

the plug in any way.

EA2;@6<;<?1@

l Replace damaged cords immediately. Use of

damaged cords can shock, burn or electrocute.

l If an extension cord is necessary, a cord with

adequate size conductors should be used to pre-

vent excessive voltage drop, loss of power or

overheating. The table shows the correct size to

use, depending on cord length and nameplate

amperage rating of tool. If in doubt, use the next

heavier gauge. Always use UL and CSA listed

extension cords.

%#!!"&-&#+'"&#"#%&

Tool 120-volt AC Tools

Ampere Cord Length in Feet

Rating Cord Size in AWG

25 50 100 150

3-6 18 16 16 14

6-8 18 16 14 12

8-10 18 16 14 12

10-12 16 16 14 12

12-16 14 12 N/A N/A

NOTE: The smaller the gauge number, the heavier

the cord.

Safety

“READ ALL INSTRUCTIONS” — Failure to follow the SAFETY RULES identified by

BULLET (l) symbol listed BELOW, and other safety precautions, may result in serious personal

injury.

K&)'&"&'%('#"&L

*%""

!

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 6

Electrical Requirements

l Connect this saw to a 120V, 15-amp branch cir-

cuit with a 15-amp time delay fuse or circuit

breaker. Using the wrong size fuse can damage

the motor.

l Fuses may “blow” or circuit breakers may trip

frequently if motor is overloaded. Overloading

can occur if you feed the blade into the

workpiece too rapidly or start and stop too often

in a short time.

l Most motor troubles may be traced to loose or

incorrect connections, overload or low voltage

(such as small size wire in the supply circuit or

overly long supply circuit wire). Always check

the connections, the load and the supply circuit

whenever motor does not work well.

920A?60?.82

Your saw is equipped with an automatic electric

brake which is designed to stop the blade from

spinning in about five (5) seconds after you release

the trigger switch. It is useful when making certain

cuts in wood where a coasting blade would result in

a wide, imprecise cut.

*52;2920A?60.9=<D2?6@9<@A1B2

A< /9<D; 3B@2 <? <A52? 0.B@2@

A52 :<A<? D699 4?.1B.99F @9<D 1<D; .;1 A52

/?.86;4.0A6<;6@6;6A6.A21#" ,/FA52?292.@2<3

A52A?6442?@D6A05

The electric blade brake of your miter saw has been

designed for highest degree of reliability, but

unexpected circumstances such as contamination on

the commutator and brushes or failure of motor’s

components can cause the brake not to activate. If

this condition occurs, turn the saw “ON” and “OFF”

four to five times without contacting the workpiece. If

the tool operates but the brake does not consistently

stop the blade in about five seconds, DO NOT use

saw and have it serviced immediately.

'52 /?.82 .0A6<; <3 A56@ @.D 6@

;<A6;A2;121.@.@.32AF32.AB?2

%2:2:/2? A< 92A A52 @.D /9.12 0<:2 A< .

0<:=92A2@A<= /23<?2 ?.6@6;4A52/9.12 3?<: A52

D<?8=6202@.9D.F@A524B.?1@F@A2:6@F<B?

/2@A =?<A20A6<; .4.6;@A B;6;A2;A6<;.9 0<;A.0A

D6A5.@=6;;6;4@.D/9.12")%D2142<=2;

<?1232.AA5209<@6;4.0A6<;<3A529<D2?4B.?1

*%""

!

*%""

!



&.32AF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

General Safety Rules for Benchtop Tools . . . . 2-3

Safety Rules for Miter Saws . . . . . . . . . . . . . . 3-6

'./92<3<;A2;A@ . . . . . . . . . . . . . . . . . . . . . . . . . 7



920A?60.9%2>B6?2:2;A@ . . . . . . . . . . . . . . . . . . . 7

Electric Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . 7



2AA6;4A<;<D,<B?!6A2?&.D . . . . . . . . . . . 8-9

@@2:/9F . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-16

Unpacking and Checking Contents . . . . . . . . . 10

Tools Needed for Assembly and Alignment . . . 11

Attaching Loose Parts . . . . . . . . . . . . . . . . . . . 12

Removing and Installing Blades . . . . . . . . . 13-14

Assembling Dust Collection System . . . . . . 15-16

17B@A:2;A@. . . . . . . . . . . . . . . . . . . . . . . . . . 17-25

Using the Head Assembly Lock Pin . . . . . . . . . 17

Using the Glide Movement Controller . . . . . . . 17

Using the Mechanism Lock Lever . . . . . . . . . . 18

Depth of Cut Adjustment . . . . . . . . . . . . . . . . . 19

Miter Detent System – Adjustment Procedure . . 20

0° Bevel Stop – Adjustment Procedure . . . 21-22

45° Bevel Stop – Adjustment Procedure . . 23-24

Adjusting Bevel Lock Tension. . . . . . . . . . . . . . 25

Adjusting Front Stabilizing Bolt. . . . . . . . . . . . . 25

'?.;@=<?A6;4.;1!<B;A6;4 . . . . . . . . . . . . . 26-27

Mounting Applications. . . . . . . . . . . . . . . . . . . . 27

$?2=.?6;43<?&.D#=2?.A6<;@ . . . . . . . . . . . 28-31

Body and Hand Positions . . . . . . . . . . . . . . . . . 28

Workpiece Support . . . . . . . . . . . . . . . . . . . 29-30

&.D#=2?.A6<;@ . . . . . . . . . . . . . . . . . . . . . . . 32-50

Switch Activation. . . . . . . . . . . . . . . . . . . . . . . . 32

Using Miter Detent System. . . . . . . . . . . . . . . . 33

M

iter Detent Override . . . . . . . . . . . . . . . . . . . . 33

Chop Cuts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Slide Cuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Miter Cuts . . . . . . . . . . . . . . . . . . . . . . . . . . 36-38

Bevel Cuts . . . . . . . . . . . . . . . . . . . . . . . . . . 39-42

Compound Cuts . . . . . . . . . . . . . . . . . . . . . . . . 43

Cutting Grooves . . . . . . . . . . . . . . . . . . . . . . . . 44

Cutting Base Molding . . . . . . . . . . . . . . . . . . . . 45

Cutting Crown Molding . . . . . . . . . . . . . . . . . . . 45

Crown Molding Angled to Table and Fence . . . 46

Crown Molding Lying Flat on Table . . . . . . . . . 47

Crown Molding Auxiliary Fence. . . . . . . . . . 48-49

Special Cuts . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

!.6;A2;.;02.;1 B/?60.A6<; . . . . . . . . . . . .51-52

'?<B/92@5<<A6;4 . . . . . . . . . . . . . . . . . . . . . . 53-55

Troubleshooting Guide – Electrical. . . . . . . . . . 53

Troubleshooting Guide – General . . . . . . . . 54-55

002@@<?62@ . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Table of Contents

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 7

'< .C<61 6;7B?F 3?<: .00612;A.9

@A.?A6;4?2:<C2=9B43?<:=<D2?

@<B?02<BA92A/23<?2:.86;4.;F.17B@A:2;A@

 &D6A05 <08# %292.@2 BAA<;@ – One of

these two buttons must be pressed before the

power switch can be pressed.

 $<D2?&D6A05 – The power switch used with the

“Lock-OFF” button energizes the unit.

 !.6;.;192 – This handle contains the power

switch. Pulling this handle down lowers the blade

into the workpiece.

 <D2? 9.12 B.?1 <D2? B.?1 6= – The

lower blade guard helps protect your hands from

the spinning blade. It retracts as the blade is

lowered. Lip can be used to raise the lower guard

in the event that the guard becomes jammed on

a workpiece.

 9.12 – Use only 12" (308 mm) diameter blades

with 1" (25.4 mm) diameter arbor holes.

 56= 23920A<? – Deflects cut-off workpieces

from entering the upper guard.

 (==2? B.?1 – Covers upper portion of the

blade.

 &9616;4 2;02 – Supports the workpiece. The

fence has a cast-in scale to make repetitive cuts

easy. The fence also has holes to secure an

auxiliary fence if desired.

 &A.A6<;.?F2;02 – Stationary fence is bolted

to the base and will support the workpiece when

the sliding fence is removed.

2?3 ;@2?A@ – Kerf inserts can be adjusted to

different blade widths to minimize workpiece

tear-out.

 !6A2?2A2;A#C2??612 – Allows detent action to

be locked out, allowing for micro-adjustments to

any miter angle.

 !6A2? <08;</ – The miter lock knob locks the

miter saw table at any desired miter angle.

 !6A2? 2A2;A 2C2? – The lever releases the

table from the detent.

 2C29 <08 2C2? – The front-positioned bevel

lock lever locks the head assembly at the desired

bevel angle.

 !6A2?&0.92!6A2?$<6;A2? – The pointer rotates

with the table and blade. It points to the miter

scale to indicate the angle setting before a cut is

made.

 !6A2? 2A2;A $9.A2 – The position of the plate

can be adjusted to set the accuracy of its detent

locations.

 !6A2?2A2;A@ – There are ten (10) miter detent

slots for fast and accurate miter cuts of common

miter angles.

 './92 – Sits in base, provides workpiece

support, rotates for desired miter cuts and

rotates the head assembly. The front extended

part of the table is called the miter arm.

 .@2 – Provides working surface to support

workpiece.

 '<<9!<B;A6;4$.1@ – The four corners of the

saw provide areas to clamp, bolt or nail the saw

to a flat work surface.



*%""

!

Getting To Know Your Miter Saw

1

4

5

6

2

3

1

8

9

10

11

15

13

12

14

18

19

20

21

22

17

16

8

23

29

28

30

9

24

27

25

26

7

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 8

Getting To Know Your Miter Saw

"#''<C62D6A2:@A5?<B45@22=.42

 .@2 EA2;@6<; 9.:=6;4 2C2?@ – Lock the

base extensions at the desired positions.

 &9616;4 .@2 EA2;@6<;@ – Provide extra work

support. Useful when cutting long workpieces.

 %B//2?23920A<? – Attaches to bottom of chute.

Deflects dust into the chute.

 B@A5BA2 – Directs sawdust up and through the

elbow and to the bag.

 9/<D – Connects the dust chute to the dust bag.

Can be rotated to direct dust.

 B@A.4 – Has a zipper at the bottom. Bag can

be uncoupled from elbow for emptying.

 !205.;6@: <08 2C2? – Holds saw in full back

position for chop cuts or fully extended for

transporting.

 6;8;</ – Attaches guard link to the pivot post.

 <D2?B.?1 6;8 – Allows for smooth movement

of the lower guard.

 9.:= – Use to hold the workpiece to the table

and base – insert into clamp post location

(item 39).

 ?B@5 .= – Keeps motor brushes in position.

Provides access for inspecting and replacing

brushes.

 2=A5&A<=&0?2D – Turn the knob end to adjust

the blade depth for cutting grooves.

 2=A5 &A<= $9.A2 – Plate can be swung out to

limit the depth of the blade travel.

 $6C<A$<@A – Provides support for the saw head,

dust collection system and other functional parts.

 E6.99612!205.;6@: – Allows saw to smoothly

slide in and out. Can be locked in full rear or fully

extended positions.

 2C29 &0.92 .;1 $<6;A2?@ – Scale is large and

angled - allows user to easily read bevel angles.

Pointer indicates what the current angle is.

 2C29 $<@A – Provides rotating support for all

miter saw parts above the table.

 2C29 2A2;A $6; ?<D; !<916;4 &2AA6;4 –

When engaged, it locks the head assembly to the

bevel angle of 33.9° to the left or right.

 9.:=$<@A <0.A6<;@ – Two vertical post holes in

the base – provided to insert the clamp (item 30).

 !6A2? 2A2;A $9.A2 &0?2D@ – Four screws

accessible through holes in the miter scale. These

screws are loosened when adjusting position of

the detent plate.

 2C29%.;42&2920A<?;</ – Allows selection of

3 bevel ranges: “0-45° Left”, “0-45° Right” or “Max.

Bevel Angle to 47°.”

 ?/<? <08 – Press arbor lock button to keep

blade from rotating when loosening or tightening

arbor bolt during blade removal or installation.

 2.1 @@2:/9F <08 $6; – Used to lock the

head assembly in the lower position for

transporting.

 9612!<C2:2;A<;A?<992?– Adjusts to regulate

movement of the glide mechanism.



1

34

32

35

36

37

38

39

40

41

43

33

42

7

(not shown)

44

(

not shown)

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 9



Assembly

(;=.086;4.;152086;4<;A2;A@

(

;=.086;4A52!6A2?&.D – When removing this tool

from packaging materials, reach down to the two side

carry-handle locations and slowly lift until it clears the

package.

'

<.C<61 @2C2?2=6;056;4 ;2C2?

963A<?:<C2A56@@.D/F4?6==6;4

.;F 0<:=<;2;A <3 A52 :205.;6@: @B==<?A

@F@A2:

This symbol is placed at various

locations on the tool to warn the user

of pinch-point areas.



52086;4<;A2;A@6;$.08.42 – Open the top of

the package and look for the included loose parts.

Refer to the diagram below.

Some small parts such as the bevel lock lever and

miter lock knob require attachment to the tool before

i

t is ready for use – See “Attaching Loose Parts” on

page 12.

'<.C<61 =<@@6/926;7B?F .9D.F@

16@0<;;20A =9B4 3?<: =<D2?

@<B?02 /23<?2 =2?3<?:6;4 .;F .@@2:/9F

.17B@A:2;A@<??2=.6?@

*%""

!

*%""

!

Bevel Lock Lever

6mm Flat Washer

6mm Lock Nut

10 mm Socket Tool

Workpiece Clamp

Manual

Miter Lock Knob

Op e rati ng/S a fety Inst ruct i ons

Loose Parts - 1 of each shown

Check off for each part

Dust Bag

6/4mm Hex Key

10mm Flat Washer

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 10



Assembly

Combination Square Must Be True - Checking Combination Square

1. Position square and

draw a light line

2. Flip square (shown in dotted position)

3. Check edge of flipped square against

the drawn line. There should be no gap

or overlap at the bottom end.

drawn line

3/4" board with

straight top edge

no gap or overlap

Tools Needed for Assembly and Alignment

Combination Square

6/4mm Hex Key

(supplied)

10mm Socket

(supplied)

#2 Phillips Screwdriver

NOTE: A 6mm and a 4mm hex key can be

substituted for the supplied 6/4mm hex key.

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 11



Assembly

'< .C<61 =<@@6/92 6;7B?F

1

6@0<;;20A =9B4 3?<: =<D2?

@<B?02 /23<?2 =2?3<?:6;4 .;F .@@2:/9F

.17B@A:2;A@<??2=.6?@

64B?2

AA.056;4A522C29 <08 2C2? – This miter saw is

packaged with the saw head locked at 0° bevel

angle. The bevel lock lever must be attached before

operating the tool.

1. Slide the 10 mm flat washer over the shaft (area

with flats).

2. Slide the bevel lock lever over the shaft, aligning

the flats on the shaft to the flats on the lever’s

mounting hole. The lever should be horizontal with

the handle to the front (see Figure 1).

3. Slide the 6 mm flat washer over the shaft (area

with screw threads) and against the recessed wall

of the lever.

4. Finger-tighten the 10mm lock nut on the shaft. Use

the 10mm socket tool to tighten the lock nut.

NOTE: The 6/4mm hex key is placed through the

holes in the socket tool to assist in tightening.

5. Lift the bevel lock lever and push back down to

check that the lever is securely in place.

AA.056;4A52!6A2? <08;</ – Locate the miter

lock knob from among the loose parts.

1. Look under the turntable’s front arm above the lock

lever and locate the 10mm hole (see Figure 1).

2. Insert the long shaft of the miter lock knob through

this hole until it stops.

3. Turn the knob clockwise (about 10 full revolutions)

until it is tight or “locked.”

4. Loosen the knob 1/2 turn to unlock it. The table is

now free to be moved on the base.

(@6;4A52!6A2? <08;</ –

1

. Loosen the miter lock knob.

2. While holding the knob in your palm, reach down

with your index or middle finger and pull up the

detent lever. While gripping knob, rotate table left

or right to needed miter angle and release the

lever.

3. Tighten the knob once you are at the correct angle.

NOTE: It is recommended to tighten the miter lock

knob before all cuts. It is required to tighten the knob

before cutting at any angle between detent

engagements or when the miter detent override

system is in use.

&A<?6;4 A52 :: 2E 2F – There is a storage

location on the saw to store the 6/4mm hex key.

Insert the short leg of the hex key through the rubber

grommet as shown. Place the long leg into the tool rest

and press down into the retainer clip (see Figure 2).

NOTE: The 6/4mm hex key is needed to change the

blade and to make tool adjustments. If lost, two

separate hex keys may be substituted: a 4mm hex

key and a 6mm hex key.

64B?22E2F&A<?.42

Miter

Lock Knob

Bevel Lock

Lever

Miter

Detent Lever

Hex Key

10mm Socket Tool

Lock Nut

Shaft

10 mm

Washer

6 mm

Washer

*%""

!

Grommet

Tool Rest

6/4mm

Hex Key

Retainer

Clip

AA.056;4 <<@2$.?A@

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 12



Assembly

'< .C<61 =<@@6/92 6;7B?F

1

6@0<;;20A =9B4 3?<: =<D2?

@<B?02 /23<?2 =2?3<?:6;4 .;F .@@2:/9F

.17B@A:2;A@<??2=.6?@

!<C6;4B.?1@@2:/9F

1. Position the saw in the UP position and at 0°

bevel. If in the DOWN position, press down

slightly on the saw head assembly and pull out

the head assembly lock pin (item 43, page 9); then

allow the saw head to come up (see Figure 3).

2. Unscrew the link knob (item 28, page 9) by hand

from the pivot post and allow the link assembly to

hang. The link knob will stay on the link.

3. Loosen front cover plate screw two turns using the

6/4mm hex key. Do not remove screw. A 4mm hex

key may be used as an alternate.

4. Loosen rear plate screw six full turns using the

6/4mm hex key. Do not remove screw.

5. Slide the cover plate down and out from the rear

screw. Rotate the cover plate and lower guard

counterclockwise around the front screw. While

holding the lower guard up against the upper

guard, move the link so its round hole can go over

the rear screw – let go and the lower guard assem -

bly will be held out of the way (see Figure 4).

64B?2

64B?2

%2:<C6;49.12

1. Press and hold the arbor lock (red button on

opposite side of upper guard – item 42, page 9).

Rotate the blade slowly while pressing the arbor

lock until it fully seats into its lock position.

2. Using the 6/4mm hex key, loosen the blade bolt by

firmly turning it 09<08D6@2. NOTE: This bolt has

left-hand threads.

3. Remove the blade bolt and outer washer. Carefully

grab the blade. Slide the blade away from the inner

washer and off the arbor shaft, then down and

away from the saw. Leave the inner washer on the

arbor shaft (see Figure 5).

Guard Link

Rear Cover Plate Screw

Cover Plate

Blade Bolt

Blade Rotation

Arrow

Front Cover Plate Screw

Knob

Rear Cover Plate Screw

Link

Cover

Plate

*%""

!

%2:<C6;4.;1;@A.996;49.12@

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 13



Assembly

'< .C<61 =<@@6/92 6;7B?F

1

6@0<;;20A =9B4 3?<: =<D2?

@<B?02 /23<?2 =2?3<?:6;4 .;F .@@2:/9F

.17B@A:2;A@<??2=.6?@

;@A.996;4 9.12

'< .C<61 6;7B?F 1< ;<A B@2 .

/9.12 9.?42? <? @:.992? A5.; 

16.:2A2? .;1  .?/<? '52 /9.12N@ :.E6:B:

=9.A2A5608;2@@6@

To reduce risk of injury, use saw

blade rated 3800/min (RPM) or

greater.

1. Follow all “Moving Guard Assembly” and “Remov-

ing Blade” steps.

2. Carefully handle the new blade. Check that the

rotation arrow on the blade matches the rotation

arrow on the lower guard. Slide the blade up and

between the sides of the chip deflector and over

the arbor shaft. Move the blade so its arbor hole

goes around the support ring of the inner washer

(see Figures 4 and 5).

3. Place the outer washer over the arbor shaft and

finger-tighten the blade bolt (counterclockwise).

Check that the blade remained on the inner

washer’s support ring.

4. Rotate the blade slowly while pressing the arbor

lock until it fully seats into its lock position.

5. Using the 6/4mm hex key, firmly tighten the blade

bolt 0<B;A2?09<08D6@2. NOTE: This bolt has left-

hand threads. Do not over tighten. A 6mm hex key

may be used as an alternate.

6. Remove the lower guard link from the rear cover

plate screw. Rotate the lower guard and cover

plate around the front cover plate screw until the

cover plate’s slot slides under the rear cover plate

screw head. Fully tighten both cover plate screws

using the 6/4mm hex key.

7. Place the lower guard link back to the original po-

sition, then firmly finger-tighten the link knob to the

pivot post. It may be necessary to retract the lower

guard while tightening the link knob.

8. Be sure the arbor lock is released so the blade

turns freely.

9. Place the 6/4mm hex key back in storage area.

'645A2; A52 0<C2? =9.A2 @0?2D@

<<@2 0<C2? =9.A2 @0?2D@ :.F

6;A2?32?2 D6A5 .;1 5.;4 B= 9<D2? /9.12 4B.?1

"2C2? B@2 @.D D6A5<BA 0<C2? =9.A2 @20B?29F 6;

=9.02 <D2?4B.?1D699;<A3B;0A6<;=?<=2?9F

3A2? 6;@A.996;4 . ;2D /9.12

:.82 @B?2 A52 /9.12 1<2@ ;<A

6;A2?32?2D6A5A52A./926;@2?A.AH.;1H/2C29

=<@6A6<;@ <D2?A52/9.126;A<A52/9.12@9<A.;1

052083<?.;F0<;A.0AD6A5A52/.@2<?AB?;A./92

@A?B0AB?2 3 A52 /9.12 0<;A.0A@ /.@2 <? A./92

@228.BA5<?6G21@2?C602

64B?29.12.?1D.?2

Outer Washer

I

nner Washer

Blade Bolt

Saw Blade

Arbor Shaft

Support Ring

*%""

!

*%""

!

*%""

!

*%""

!

%2:<C6;4.;1;@A.996;49.12@

*%""

!

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 14



Assembly

'< .C<61 =<@@6/92 6;7B?F

1

6@0<;;20A =9B4 3?<: =<D2?

@<B?02 /23<?2 =2?3<?:6;4 .;F .@@2:/9F

.17B@A:2;A@<??2=.6?@

The dust collection system used on this tool is unique

because it is not attached to the upper guard. This

placement provides superior dust collection for the

majority of cuts. When adjusting or removing any dust

collection components, be sure the saw is unplugged.

9/<D

The elbow is attached to the top of the dust chute.

NOTE: It is recommended that the elbow is always in

place before operating the tool – it is required to direct

dust and debris away from the operator. The elbow

can be rotated in place. The elbow supports the dust

bag or can be connected to a vacuum cleaner.

%2:<C6;49/<D – For cleaning, the elbow may be

removed by pulling up and twisting until it is free of

the dust chute. Reattach the elbow by pressing and

twisting until it snaps over the chute’s molded-in

retaining ring. Always reattach before using the saw.

AA.056;4.;117B@A6;4A52B@A.4

AA.056;4.;1%2:<C6;4B@A.4 – The elbow

has pins on the top and bottom of the exit port which

will engage the coupler end of the dust bag

assembly. To attach the dust bag, align the coupler’s

slots with the elbow’s pins, then push and twist it

clockwise. To remove the dust bag, twist the coupler

counterclockwise, then pull off – always leave the

elbow on the dust chute (see Figure 6).

17B@A6;4B@A.4 – After attaching the bag, it is

recommended to do a “dry cut” before cutting with the

saw – this means: unplug the tool, preset it for

intended cut and practice the cut. For some bevel

cuts, the sliding fence may have to be moved or

removed to avoid being cut or making contact with

the dust bag. The bag’s position may also need a

rotating adjustment if it contacts the workpiece during

a slide cut.

64B?2

(@6;4.;192.;6;4A52B@A.4

(@6;4B@A.4 – Attach the clean bag to the elbow.

Adjust the elbow and dust bag, if necessary, so they

d

o not interfere with the tool during the intended

cutting operation.

92.;6;4B@A.4 – After the dust bag is 2/3 to 3/4

full, remove it from the saw. Bring the bag to a proper

container and pull open the zipper located on the

bottom of the bag. Hold the bag by the coupler end

and shake it vigorously until all the dust and debris

fall from it. Close zipper and reattach the bag.

NOTE: Clean the bag at the end of the cutting

session and before transporting or storing the saw

(see Figure 7).

2 2EA?2:29F 0.?23B9 D52;

16@=<@6;4 <3 1B@A !.A2?6.9@ 6;

36;2=.?A60923<?::.F/22E=9<@6C2<;<AA5?<D

@.D1B@A <; .; <=2; 36?2 &=<;A.;2<B@

0<:/B@A6<;6;A6:2:.F?2@B9A3?<:A52:6EAB?2

<3<69<?D.A2?D6A51B@A=.?A6092@

64B?2

Coupler

Zipper

Dust Bag

Dust Chute

Rubber Deflector

Elbow

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Coupler

Slot

Dust Bag

Elbow

Dust Chute

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Assembly

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he elbow has an exit port which will accept a

standard 35mm diameter vacuum fitting or a 1-1/4"

tube diameter. The 35mm diameter fitting is the

standard size used on the Bosch Airsweep

TM

Vacuum

Cleaners, Models 3931 and 3931A. For larger

vacuum tube sizes, use an adaptor.

AA.056;4A<).0BB: – Insert the vacuum fitting or

tube into the elbow’s exit port as far as it will go.

Check to see that the vacuum hose is free from the

mechanism and cutting path before plugging saw into

power source.

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The rubber deflector extends the range of dust and

debris collection and should be left on the tool for

maximum dust pickup efficiency. When slide cutting

extra-tall materials (more than 2-13/16" high), the

rubber deflector will contact and flex over these

materials. It will also contact and flex when the saw is

pulled back before the cut. It will return to its original

shape after the cut.

%2=<@6A6<;6;423920A<? – If the operator wants to

avoid the contact of the rubber deflector with the

material, the deflector can be temporarily folded up

and over the back of the dust chute. If the operator

permanently wants no contact of the deflector with

the material being cut, the deflector may be removed.

%2:<C6;4 23920A<? – Pull one of the deflector’s

tabs to the front and then sideways until it comes off

one of the dust chute’s side hooks (see Figure 9).

Unhook the opposite side. Then unhook the deflector

f

rom the rear post of the chute by pulling and

stretching until it is free. NOTE: Removing the

deflector lowers dust collection capability.

AA.056;4 23920A<? – Start by stretching and

hooking the deflector over the rear post, followed by

hooking over each side hook (see Figure 10).

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Side Hook

Rear

Post

Side Hook

Rear

Post

Rear of

Dust Chute

Rubber Deflector

Vacuum

Hoses

35 mm

Diameter

1-1/4 inch

Diameter

Elbow

Exit

Port

Dust Chute

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Adjustments

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he head assembly lock pin (item 43 - page 9) is

located on the right side of the pivot post (item 34 -

page 9). It is used to hold the saw’s head assembly

in the DOWN position. This position prevents the

head from bouncing up and down during

transportation. This also makes the saw more

compact for lifting and storage. This position is also

required for some calibrating procedures.

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1. Check that the depth stop plate (item 33 - page 9)

is disengaged, or pressed in to the left position.

2. Grasp the saw’s main handle (item 3 - page 8) and

press down on the head assembly.

3. While pressing the saw head down, push in on the

head assembly lock pin. Release the head

assembly. The head will be locked in the DOWN

position (see Figure 11).

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1. Grasp the main handle and press down on the

head assembly.

2. While pressing the head down, pull out the head

a

ssembly lock pin. Release the lock pin, but

maintain your grip on the main handle. Slowly

allow the spring-loaded saw head to come up to

the top of its travel and then release the handle.

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Depth Stop

Plate

Head Assembly

Lock Pin

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The glide movement controller is attached to the

upper joint of the glide mechanism; it is designed to

control the smoothness of the saw’s glide action.

When assembled at the factory, the controller is not

adjusted; therefore, the movement is very smooth. To

adjust the glide mechanism’s smoothness, slightly

tighten or loosen the two screws at the top by using

the 6/4mm hex key or a 4mm hex key (see Figure 12).

64B?2

6/4mm Hex Key

x 2 Screws

Glide Movement

Controller

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Adjustments

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he lock lever (item 27 - page 9) is located on the

rear left side of the mechanism.

When engaged, it locks the system (item 35 – page

9) in either the full forward or the full back position

and prevents movement while transporting the saw.

When held in the full back position, the saw is more

compact for lifting and storage. The full back position

is often used while performing chop cuts.

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1. Grasp the saw’s main handle (item 3 - page 8)

and push (slide) the head assembly back as far as

it goes. The upper housings will be upright and

closed.

2. Lift the tab on the lock lever to engage its wedge

into the joint area between the two lower

housings. Release the lock lever tab and the main

handle. The head assembly will be locked in the

full back position.

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1. Grasp the main handle (item 3 - page 8) and pull

(

slide) the head assembly toward you as far as it

goes. The mechanism will be fully extended.

2. Lift the tab on the lock lever to engage its wedge

into the joint area between the two lower

housings. Release the lock lever tab and the main

handle. The head assembly will be locked in the

full forward position.

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1. Grip the tab on the lock lever and press down until

its wedge comes out from between the two lower

housings. Release your grip; the mechanism is

now free to slide forward and back.

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Lock

Lever Tab

Lock

Lever Tab

Lock

Lever Tab

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Adjustments

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When a new blade is installed, it may be necessary

to check the clearance of the blade to the turntable

structure. The depth stop plate is a feature provided

to allow for (normal) full-depth cuts or non-through

cuts used to cut grooves.

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1. When making normal full-depth cuts, push the

depth stop plate in toward the saw head (see

Figure 16). This will allow the depth stop screw to

pass through the hole in the plate.

2. Check for full depth of cut:

- Set table at 0° miter and push saw fully back.

- Pull out head assembly lock pin to the release

position.

- Push down saw head and watch the depth stop

screw pass through the stop plate without any

binding or contact with the plate.

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NOTE: For best results, Bosch recommends the use

of a table saw with an optional dado blade set for

cutting grooves and non-through cuts. In the event

this is not available, the feature described below is a

convenient alternative.

1. Release (pull out) the head asembly lock pin and

allow the saw head to move fully up. Slide saw

head to the full back position.

2. Pull the depth stop plate out away from the saw

head (see Figure 17).

3. Grip the main handle (item 3, page 8) and push

down the saw head while watching the depth stop

screw contact the top surface of the depth stop

plate. The screw will not pass through the hole in

the plate.

4. Turn the knob at the end of the depth stop screw

(while the threaded end is in contact with stop

plate) and watch the bottom of the saw blade

move. This adjustment sets the depth of cut.

See page 44 for “Cutting Grooves” instructions.

64B?2

64B?2

Depth

Stop Screw

Depth Stop

Plate

Depth

Stop Screw

Depth Stop

Plate

Head Assembly

Lock Pin

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

Adjustments

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1

. Engage the miter detent at the 0° position. Loosen

the miter lock knob 1/2 turn.

2. Look for four round holes in the miter scale plate.

In each hole is a screw. Use the small end of the

6/4mm hex key or a 4mm hex key to loosen all

four screws 1 to 2 turns. This will loosen the miter

detent plate (see Figure 18).

64B?2

3. Lock saw down using the head assembly lock pin

(item 43 – page 9).

4. Hold one side of a 90° combination square against

the fence and rotate the table (and detent plate)

until the side of the saw blade is in full contact with

the other side of the square.

64B?2

5. Tighten all four screws – loosen and reset the

miter scale pointer to the “0” position.

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1

. Rotate table to 0° position and lock in place.

2. Raise the head assembly to the full UP position.

3. Loosen the pointer adjust screw that holds the

miter scale pointer in place (see Figure 20).

4. Position the pointer to align with the 0° line.

Tighten the screw.

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The kerf inserts should be adjusted close to the

blade, but without touching the blade, to avoid tear-

out on the bottom of the workpiece.

1. Hold the saw head assembly down and push in

the head assembly lock pin (item 43 – page 9) to

keep the saw in the DOWN position.

2. Loosen the six kerf screws using a #2 Phillips

screwdriver.

3. Adjust the kerf inserts as close to the blade (teeth)

as possible without touching the blade.

4. Tighten the kerf screws.

NOTE: At extreme bevel angles, the saw blade may

slightly cut into kerf insert.

64B?22?3;@2?A@

Kerf Inserts

Kerf Screws

Pointer Adjust Screw

Miter Scale Pointer

0° Line

Contacting

Fence

Contacting

Blade

Combination

Square

Set Miter

Detent at 0°

Detent Plate

Screws

BM 2610007877 04-10:BM 2610007877 04-10.qxp 4/26/10 8:13 AM Page 20

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Bosch Power Tools GCM12SD T4B Manuel utilisateur

Bosch Power Tools GCM12SD T4B Manuel utilisateur

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