Porter-Cable PXCMLC1683066 Manuel utilisateur

Compresores eléctricos

de aire, de una sola etapa

y accionamiento por

correa

Single Stage, Belt Drive,

Electric Air Compressors

Compresseurs d’air

électriques à un étage à

entraînement par courroie

Français : Page 31

Español: Página 59

Instruction manual

Manuel d'instructions

Manual de instrucciones

PXCMLC1683066

PXCMPC1682066

200-2886_Rev. J_1-14-20

2- ENG

TABLE OF CONTENTS

TABLE DES MATIÈRES

INDICE

SAFETY GUIDELINES .................................... 3-6

SPECIFICATION CHART ....................................6

OVERVIEW .........................................................6

Basic Air Compressor Components .............6

ASSEMBLY ......................................................... 7

Assembling the Compressor ........................7

COMPRESSOR CONTROLS ..............................8

ELECTRICAL POWER REQUIREMENTS ...........9

Electrical Wiring ............................................9

Extension Cords ...........................................9

Grounding Instructions ........................... 9-10

MOTOR ...................................................... 10-11

Motor Reset Switch .............................. 10-11

BREAK-IN OF THE PUMP ................................11

OPERATING INSTRUCTIONS ................... 12-13

Daily Startup ...............................................13

Shutdown....................................................13

MAINTENANCE .......................................... 14-17

Draining the Tank ........................................14

Checking the Oil .........................................14

Changing the Oil .........................................14

Belt Tension ................................................15

Pulley Alignment .........................................16

Cleaning the Air Filter .................................17

Checking the Relief Valve ...........................17

Testing for Leaks ......................................... 17

Storage .......................................................17

SERVICE INTERVAL .........................................17

TROUBLESHOOTING CHART ................... 18-19

PARTS DRAWINGS AND PARTS LISTS ..... 20-25

WARRANTY ................................................ 26-28

GLOSSARY OF TERMS ...................................29

PARTS AND SERVICE ......................................30

CONSIGNES DE SÉCURITÉ .................. 3, 31-33

TABLEAU DES SPÉCIFICATIONS ....................33

VUE D’ENSEMBLE ..................................... 33-34

Éléments de base du compresseur d’air . 33-34

ASSEMBLAGE..................................................34

Assemblage du compresseur .....................34

COMMANDES DU COMPRESSEUR ...............35

SPÉCIFICATIONS DE L’ALIMENTATION

ÉLECTRIQUES ........................................... 36-37

Câblage électrique ......................................36

Rallonges ....................................................36

Instructions de mise à la terre .............. 36-37

REMISE EN MARCHE ET CÂBLAGE DU

MOTEUR ................................................... 37-38

Interrupteur de remise en marche du

moteur................................................... 37-38

RODAGE DE LA POMPE ..................................38

MODE D’EMPLOI ....................................... 39-40

Mise en marche quotidienne ......................40

Arrêt ............................................................40

ENTRETIEN ................................................ 41-44

Vidange du réservoir ...................................41

Vérification du niveau d’huile ......................41

Vidange d’huile ..................................... 41-42

Tension de la courroie .................................42

Alignement de la poulie ..............................43

Nettoyage du filtre à air ..............................44

Vérification de soupape de décharge .........44

Essai d’étanchéité.......................................44

Entreposage ................................................44

ENTRETIEN PÉRIODIQUE ................................44

DÉPANNAGE .............................................. 45-46

GLOSSAIRE DES TERMES ..............................47

DESSIN DES PIÈCES ET LISTEDE PIÈCES ..48-53

GARANTIE LIMITÉE ................................... 54-57

PI

È

CES ET RÉPARATIONS ...............................58

PAUTAS DE SEGURIDAD ....................... 3, 59-61

TABLEAU DES SPÉCIFICATIONS ....................61

RESUMEN GENERAL.......................................61

Componentes básicos del compresor

de aire .........................................................61

MONTAJE ................................................... 62-63

Montaje del compresor ......................... 62-63

CONTROLES DEL COMPRESOR ....................63

REQUERIMIENTOS DE ALIMENTACIÓN

ELÉCTRICA ................................................ 64-65

Cableado eléctrico ......................................64

Cordones prolongadores ............................64

Instrucciones de conexión a tierra........ 64-65

CONVERSIÓN DEL CABLE ELÉCTRICO

MOTOR ...................................................... 64-65

Interruptor de restablecimiento del motor .. 64-65

MARCHA INICIAL DEL BOMBA .......................66

INSTRUCCIONES OPERATIVAS ................ 67-68

Arranque diario ...........................................68

Parada ........................................................68

MANTENIMIENTO ...................................... 69-72

Desagüe del tanque ....................................69

Verificación del nivel de aceite....................69

Cambio de aceite .................................. 69-70

Tensión de la correa ....................................70

Alineación de la polea .................................71

Limpieza del filtro de aire ............................72

Revisión de la válvula de alivio ...................72

Detección de fugas .....................................72

Almacenamiento .........................................72

INTERVALOS DE SERVICIO .............................72

CUADRO DE DETECCIÓN DE FALLOS ..... 73-74

GLOSARIO DE TERMINOS ..............................75

ESQUEMA DE LA PIEZAS Y LISTA DE LAS

PIEZAS ....................................................... 76-81

GARANTÍA LIMITADA ................................. 82-84

REPUESTOS Y SERVICIO ................................85

3 - ENG

SAFETY GUIDELINES

The following information relates to protecting YOUR SAFETY and PREVENTING

EQUIPMENT PROBLEMS. To help you recognize this information, we use the

following symbols. Please read the manual and pay attention to these sections.

Indicates an imminently hazardous situation which, if not

avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not

avoided, may result in minor or moderate injury.

 DANGER

 WARNING

 CAUTION

CONSIGNES DE SÉCURITÉ

Les informations suivantes concernent VOTRE SÉCURITÉ et LA PROTECTION DU

MATÉRIEL CONTRE LES PANNES. Pour vous aider à identifier la nature de ces

informations, nous utilisons les symboles suivants. Veuillez lire le manuel et prêter

attention à ces sections.

DANGER POTENTIEL POUVANT ENTRAÎNER DE GRAVES

BLESSURES OU LA MORT.

DANGER POUVANT CAUSER DES BLESSURES

GRAVES VOIRE MORTELLES.

DANGER POUVANT CAUSER DES BLESSURES

MOYENNEMENT GRAVES OU L’ENDOMMAGEMENT

DE L’APPAREIL.

 DANGER

 AVERTISSEMENT

 ATTENTION

PAUTAS DE SEGURIDAD

La información que sigue se refiere a la protección de SU SEGURIDAD y la

PREVENCIÓN DE PROBLEMAS DEL EQUIPO. Como ayuda para reconocer esta

información, usamos los siguientes símbolos. Lea por favor el manual y preste

atención a estas secciones.

UN POSIBLE RIESGO QUE CAUSARÁ LESIONES GRAVES

O LA PÉRDIDA DE LA VIDA.

UN RIESGO POTENCIAL QUE PODRÍA PROVOCAR

GRAVES LESIONES O MUERTE.

UN RIESGO POTENCIAL QUE PODRIA PROVOCAR

LESIONES LEVES O DA—AR EL EQUIPO.

 PELIGRO

 ADVERTENCIA

 PRECAUCION

4- ENG

1. RISK OF FIRE OR

EXPLOSION. Never spray

flammable liquids in a confined

area. It is normal for the motor

and pressure switch to produce

sparks while operating. If sparks

come into contact with vapors

from gasoline or other solvents, they may

ignite, causing fire or explosion. Always

operate the compressor in a well–ventilated

area. Do not smoke while spraying. Do not

spray where sparks or flame are present.

Keep compressor as far from spray area as

possible.

2. RISK OF ELECTRICAL

SHOCK. Never use an electric

air compressor outdoors when

it is raining or on a wet surface,

as it may cause an electric shock.

3. RISK OF INJURY. This unit

starts automatically. ALWAYS

shut off the compressor, remove

the plug from the outlet, and

bleed all pressure from the system before

servicing the compressor, and when the

compressor is not in use. Do not use the

unit with the shrouds or beltguard removed.

Serious injury could occur from contact

with moving parts.

4. RISK OF BURSTING. Check

the manufacturer’s maximum

pressure rating for air tools and

accessories. Compressor outlet

pressure must be regulated so as to never

exceed the maximum pressure rating of the

tool. Relieve all pressure through the hose

before attaching or removing accessories.

5. RISK OF BURNS. High

temperatures are generated

by the pump and manifold. To

prevent burns or other injuries, DO NOT

touch the pump, manifold or transfer tube

while the pump is running. Allow them to

cool before handling or servicing. Keep

children away from the compressor at all

times.

6. RISK TO BREATHING. Be

certain to read all labels when

you are spraying paints or toxic

materials, and follow the safety

instructions. Use a respirator mask if there

is a chance of inhaling anything you are

spraying. Read all instructions and be sure

that your respirator mask will protect you.

Never directly inhale the compressed air

produced by a compressor. It is not

suitable for breathing purposes.

7. RISK OF EYE INJURY.

Always wear ANSI Z87.1

approved safety goggles when

using an air compressor. Never point any

nozzle or sprayer toward a person or any

part of the body. Equipment can cause

serious injury if the spray penetrates the

skin.

8. RISK OF BURSTING. Do not

adjust the relief valve for any

reason. Doing so voids all

warranties. The relief valve has

been pre-set at the factory for the

maximum pressure of this unit. Personal

injury and /or property damage may result if

the relief valve is tampered with.

9. RISK OF BURSTING.Do not

use plastic or pvc pipe for

compressed air. Use only

gavanized steel pipe and fittings

for compressed air distribution lines.

10. RISK TO HEARING. Always

wear hearing protection when

using an air compressor. Failure

to do so may result in hearing loss.

NOTE: ELECTRICAL WIRING. Refer to

the air compressor’s serial label for the

unit’s voltage and amperage requirements.

Ensure that all wiring is done by a licensed

electrician, in accordance with the National

Electrical code.

WARNING: CONTAINS

LEAD. May be harmful

if eaten or chewed.

May generate dust

WARNING

Read and understand all safety precautions in this manual before operating. Failure to

comply with instructions in this manual could result in personal injury, property damage,

and/or voiding of your warranty. The manufacturer WILL NOT be liable for any damage

because of failure to follow these instructions.

5 - ENG

DANGER

containing lead. Wash hands after use.

Keep out of reach of children.

WARNING: This product can

expose you to chemicals including

Lead, which is known to the State

of California to cause cancer and birth

defects or other reproductive harm. For

more information go to www.P65Warnings.

ca.gov.

RISK OF BURSTING.

Air Tank: On February 26, 2002, the U.S. Consumer Product Safety

Commission published Release # 02-108 concerning air compressor tank

safety:

Air compressor receiver tanks do not have an infinite life. Tank life is dependent upon

several factors, some of which include operating conditions, ambient conditions, proper

installations, field modifications, and the level of maintenance. The exact effect of these

factors on air receiver life is difficult to predict.

If proper maintenance procedures are not followed, internal corrosion to the inner wall of

the air receiver tank can cause the air tank to unexpectedly rupture allowing pressurized

air to suddenly and forcefully escape, posing risk of injury to consumers.

Your compressor air tank must be removed from service by the end of the year shown on

your tank warning label.

The following conditions could lead to a weakening of the air tank, and result in a violent

air tank explosion:

WHAT CAN HAPPEN HOW TO PREVENT IT

• Failure to properly drain condensed water

from air tank, causing rust and thinning of

the steel air tank.

• Drain air tank daily or after each use. If air

tank develops a leak, replace it immediately

with a new air tank or replace the entire

compressor.

• Modifications or attempted repairs to the

air tank.

• Never drill into, weld or make any

modifications to the air tank or its

attachments. Never attempt to repair a

damaged or leaking air tank. Replace with a

new air tank.

• Unauthorized modifications to the safety

valve, or any other components which

control air tank pressure.

• The air tank is designed to withstand

specific operating pressures. Never make

adjustments or parts substitutions to alter the

factory set operating pressures.

WARNING

1. Drain the moisture from the tank on a daily basis. A clean, dry tank will help prevent

corrosion.

2. Pull the pressure relief valve ring daily to ensure that the valve is functioning properly,

and to clear the valve of any possible obstructions.

3. To provide proper ventilation for cooling, the compressor must be kept a minimum of 12

inches (31 cm) from the nearest wall, in a well–ventilated area.

4. To prevent damage to tank and compressor on stationary models, the tank must be

shimmed so the pump base is level within 1/8” to distribute oil properly. All feet must be

supported, shimming where necessary, prior to attaching to the floor. Fasten all feet to

floor. We also recommend the use of vibration pads (094-0137) under tank feet.

5. Fasten the compressor down securely if transporting is necessary. Pressure must be

released from the tank before transporting.

6- ENG

BASIC AIR COMPRESSOR COMPONENTS

The basic components of the air compressor are the electric motor, pump,

pressure switch and tank (see Fig. 1).

The electric motor (see A) powers the pump. The electric motor is equipped

with an overload protector to help prevent possible motor burnout. If the motor

becomes overheated, the overload protector will shut it down. Should this occur,

allow the motor to cool for 10-15 minutes, then press (never force) the motor

reset switch to restart the motor.

The pump (see B) compresses the air and discharges it into the tank.

The tank (see C) stores the compressed air.

The pressure switch (see D) shuts down the motor

and relieves air pressure in the pump and transfer

tube when the air pressure in the tank reaches the

kick–out pressure. As compressed air is used and

the pressure level in the tank drops to the kick–in

pressure, the pressure switch restarts the motor

automatically,

without warning

and the pump

resumes

compressing air.

The air line outlet

(see E). Connect

1/4” NPT air hose

to this outlet.

A

B

C

D

E

Fig. 1

SPECIFICATION CHART

MODEL NO.

RUNNING

H.P.

TANK

CAPACITY

GALLONS

VOLTAGE/

AMPS/

PHASE

KICK-IN

PRESSURE

KICK-OUT

PRESSURE

PXCMPC1682066

1.6 20 (75,7)

120/240/

15/7.5/

1

105

(7,24 bar)

135

(9,31 bar)

PXCMLC1683066

1.6 30 (113,6)

120/240/

15/7.5/

1

105

(7,24 bar)

135

(9,31 bar)

6. Protect the air hose from damage and puncture. Inspect them weekly for weak or worn

spots, and replace if necessary.

7. To reduce the risk of electric shock, do not expose to rain. Store indoors.

A

B

D

C

E

7 - ENG

ASSEMBLY

Ä

STOP

Fill pump to correct mark and check often.

Use synthetic blend, non-detergent air compressor oil.

1. Unpack the air compressor. Inspect the unit for damage. If the unit has been

damaged in transit, contact the carrier and complete a damage claim. Do

this immediately because there are time limitations to damage claims.

The carton should contain:

• air compressor

• operator/parts manual

• air filter assembly

2. Check the compressor’s serial label to ensure that you have received the

model ordered, and that it has the required pressure rating for its intended

use.

3. Attach handle to compressor as shown in Fig 2a.

4. Attach air filter assemblies to pump as shown in Fig. 2b.

5. Locate the compressor according to the following guidelines:

a. Position the compressor near a grounded electrical outlet (see

GROUNDING INSTRUCTIONS. Avoid using an extension cord; use a

longer hose instead.

b. The flywheel side of the compressor must be at least 12 inches (31 cm)

from any wall or obstruction, in a clean, well-ventilated area, to ensure

sufficient air flow and cooling.

c. In cold climates, store portable compressors in a heated building when

not in use. This will reduce problems with lubrication, motor starting and

freezing of water condensation.

d. The compressor must be level to ensure proper lubrication of the pump

and good drainage of the moisture in the tank.

6. Connect an air hose (not included) to the manifold outlet.

Fig. 2b

Fig. 2a

8- ENG

COMPRESSOR CONTROLS

Refer to Fig. 3.

PRESSURE switch (see A)

This switch turns on the compressor. It is operated manually, but when in the

ON position, it allows the compressor to start up or shut down automatically,

without warning, upon air demand. ALWAYS set this switch to OFF when the

compressor is not being used, and before unplugging the compressor.

Pressure Relief Valve (see B)

If the pressure switch does not shut down the motor when pressure reaches

the preset level, this valve will pop open automatically to prevent over

pressurization. To operate manually, pull the ring on the valve to relieve air

pressure in the tank.

Tank Pressure Gauge (see C)

This gauge measures the pressure level of the air stored in the tank. It is not

adjustable by the operator, and does not indicate line pressure.

Air Pressure Regulator (see D)

This air pressure regulator enables you to adjust line pressure to the tool you are

using.

Never exceed the maximum working pressure of the tool.

Turn the knob clockwise to increase pressure, and

counterclockwise to decrease pressure.

Regulated pressure gauge (see E)

This gauge measures the regulated outlet pressure.

Air line outlet (see F)

Connect 1/4” NPT air hose to this outlet.

 WARNING

Fig. 3

9 - ENG

ELECTRICAL POWER REQUIREMENTS

ELECTRICAL WIRING

Refer to the air compressor’s serial label for the unit’s voltage and amperage

requirements.

Use a dedicated circuit

For best performance and reliable starting, the air compressor must be

plugged into a dedicated circuit, as close as possible to the fusebox

or circuit breaker. The compressor will use the full capacity of a typical 15

amp household circuit. If any other electrical devices are drawing from the

compressor’s circuit, the compressor may fail to start. Low voltage or an

overloaded circuit can result in sluggish starting that causes the motor overload

protection system or circuit breaker to trip, especially in cold conditions.

NOTE: A circuit breaker is recommended. If the air compressor is connected to

a circuit protected by a fuse, use dual element time delay fuses (Buss Fusetron

type “T” only).

EXTENSION CORDS

NOTE: Avoid use of extension cords.

For optimum performance, plug the compressor power cord directly into

a grounded wall socket. Do not use an extension cord unless absolutely

necessary. Instead, use a longer air hose to reach the area where the air is

needed.

If use of an extension cord cannot be avoided, the cord should be no longer

than 50 feet and be a minimum wire size of 12 gauge (AWG). Do not use a 16 or

14 gauge extension cord.

Use only a 3-wire extension cord that has a 3-blade grounding plug, and a 3-slot

receptacle that will accept the plug on the product. Make sure your extension

cord is in good condition. An undersized cord will cause a drop in line voltage,

resulting in loss of power and overheating. The smaller the gauge number, the

heavier the cord.

GROUNDING INSTRUCTIONS

FOR CORD-CONNECTED MODELS:

This product should be grounded. In the event of an electrical short circuit,

grounding reduces the risk of electric shock by providing an escape wire for the

electric current.

This product is equipped with a cord having a grounding wire with an

appropriate grounding plug. The plug must be plugged into an outlet that

is properly installed and grounded in accordance with all local codes and

ordinance.

Note: Not all units shipped with power cord.

10- ENG

 DANGER

Improper installation of the grounding plug can

result in a risk of electric shock. If repair or replacement of the

cord or plug is necessary, do not connect the grounding wire to

either flat blade terminal. The wire insulation having an outer

surface that is green with or without yellow stripes is the

grounding wire.

This product is for use on a nominal 115 or 230 volt circuit. A cord with a

grounding plug, as shown here, shall be used.

Make sure that the product is connected to an outlet having the same

configuration as the plug (see Fig. 4). No adapter should be used with this

product.

Check with a licensed electrician if the grounding instructions are not completely

understood, or if in doubt as to whether the product is properly grounded. Do

not modify the plug provided; if it will not fit the outlet, have the proper outlet

installed by a licensed electrician.

FOR PERMANENTLY CONNECTED MODELS OR MODELS SHIPPED

WITHOUT POWER CORD: This product must be connected to a grounded

metallic, permanent wiring system, or an equipment grounding terminal or lead

on the product.

Grounded Outlet

Box

Grounded Outlet

Plug

Grounding Pin

Fig. 4

115V

230V

230 VOLT

15 AMP

115 VOLT

15 AMP

MOTOR RESET SWITCH AND WIRING

 WARNING

Ensure that all guards and shrouds are in place before

pressing the reset switch to restart the motor.

If the motor shuts down because of overload, wait 10–15 minutes so the motor

can cool down, then press (NEVER force) the reset switch (see A) to restart the

motor (see Fig. 5).

11 - ENG

NOTE: Some models are equipped with a dual voltage motor 115/230 volt.

Most models are factory wired for 115 volt operation. If conversion from

115 volt to 230 volt is required, refer to the motor nameplate and have the

conversion completed by a Licensed Electrician.

Note: On stationary models not supplied with a power cord, the electrical power

must be wired into the pressure switch by a Licensed Electrician.

Fig. 5

BREAK-IN OF THE PUMP

Ä

STOP

Fill pump to correct mark and check often.

Use synthetic blend, non-detergent air compressor oil.

1. Check the level of oil in the pump with the sight glass. The pump oil level

must be between A and B (See Fig. 6). Do not overfill or underfill.

2. Turn the pressure switch to the OFF position (see C).

3. Open the petcock (see F).

4. Plug in the power cord.

5. Turn the pressure switch to the ON position (see D). The compressor will

start. Allow the compressor to run for 30 minutes, to break in the internal

parts.

NOTE: After about 30 minutes, If the unit does not operate properly, SHUT

DOWN IMMEDIATELY, and contact Product Service.

6. After about 30 minutes, turn the pressure switch to the OFF position.

7. Close the petcock (see E).

8. Turn the pressure switch to the ON position. The compressor will start and

fill the tank to the kick-out pressure and stop.

NOTE: As compressed air is used, the pressure switch will restart the motor

automatically.

A

12- ENG

A = Full

B = Add

Fig. 6

OPEN

CLOSE

F

E

A

B

13 - ENG

OPERATING INSTRUCTIONS

DAILY STARTUP

1. Every day check the sight glass to ensure that the level of oil in the pump is

at the required level. The pump oil level must be between A and B (see Fig.

6). Do not overfill or underfill.

2. Turn the pressure switch to the OFF position (see C).

3. Close the tank petcock (see E).

4. Plug in the power cord.

High temperatures are generated by the electric

motor and the pump. To prevent burns or other injuries, DO NOT

touch the compressor while it is running. Allow it to cool before

handling or servicing. Keep children away from the compressor at

all times.

5. Turn the pressure switch to the ON position (see D).

When adjusting from a higher to a lower pressure,

turn the knob counterclockwise past the desired setting, then

turn clockwise to reach the desired pressure. Do not exceed

operating pressure of the tool or accessory being used.

6. If a pressure regulator is present on your compressor, adjust it to the

working pressure of the tool.

SHUTDOWN

1. Turn the pressure switch to the OFF position (see C).

2. Unplug the power cord.

3. Reduce pressure in the tank through the outlet hose. You can also pull the

relief valve ring (see G) and keep it open to relieve pressure in the tank.

Escaping air and moisture can propel debris that may

cause eye injury. Wear safety goggles when opening petcock.

4. Open the petcock (see F) to allow moisture to drain from the tank.

 WARNING

14- ENG

MAINTENANCE

To avoid personal injury, always shut off and unplug the

compressor and relieve all air pressure from the system

before performing any service on the air compressor.

Regular maintenance will ensure trouble–free operation. Your electric powered

air compressor represents high–quality engineering and construction; however,

even high–quality machinery requires periodic maintenance. The items listed

below should be inspected on a regular basis

DRAINING THE TANK

Condensation will accumulate in the tank. To

prevent corrosion of the tank from the inside, this

moisture must be drained at the end of every workday.

 WARNING

Be sure to wear protective eyewear. Relieve the

air pressure in the system and open the petcock on the bottom of

the tank to drain.

CHECKING THE OIL

Check the level of oil in the pump with the sight glass. The pump oil level must

be between A and B (See Fig. 7). Do not overfill or underfill.

CHANGING THE OIL

NOTE: Use synthetic blend, non-detergent air compressor oil.

Remove the oil plug (C) (Fig. 7) and drain the oil until it slows to a drip, then

close. Add oil to the pump by first removing the breather plug (E). Add oil until

the level viewed through the sight glass (D) is between FULL (A) and ADD (B)

(approx. 11.35 oz). Never overfill or underfill the pump.

NOTE: The compressor is pre-filled with synthetic oil. Use synthetic blend, non-

detergent air compressor oil.

 WARNING

E

D

C

A = Full

B = Add

C = Oil drain plug

D = Oil level sight glass

E = Oil fill plug

Fig. 7

A

B

15 - ENG

BELT TENSION AND PULLEY ALIGNMENT

To avoid personal injury, always shut off and unplug the

compressor and relieve all air pressure from the system

before performing any service on the air compressor.

NOTE: Drive belt tensioning and pulley alignment are done at the same time.

They are discussed separately for clarity.

ADJUSTING DRIVE BELT TENSION

Proper belt tension and pulley alignment must be maintained for maximum drive

efficiency and belt life. The correct tension exists if a deflection (see A) of 1/2”

(13 mm) occurs by placing 5 lb (2.3 kg) of force (see B) midway between the

motor pulley and the pump flywheel (See Fig. 8). This deflection can be adjusted

by the following procedure. The pulley should be carefully aligned with the

flywheel, and all setscrews should be kept tight.

1. Remove the belt guard.

2. Loosen the motor mounting bolts.

3. Shift the motor to the point where the correct deflection exists.

4. Retighten the motor mounting bolts.

5. Check to ensure that the tension remained correct.

6. Reinstall the belt guard. All moving parts must be guarded.

 WARNING

Fig. 8

16- ENG

PULLEY ALIGNMENT

To check pulley alignment, remove the belt guard and place a straightedge

(see A) against the pump flywheel (see B) (See Fig. 9). Measure and record the

distance from the straightedge to the edge of the drive belt at point C. Then

measure the distance from the straightedge to the edge of the drive belt again

at points D and E. Both distances should be the same as at point C. If D or E

are different from C, there is a misalignment which must be corrected before

the compressor is run. To correct a pulley misalignment, use the following

procedure.

1. Remove the belt guard.

2. Loosen the motor mounting bolts.

3. Loosen the setscrew on the motor pulley.

4. Align the motor pulley with the pump flywheel (C = D = E).

5. Retighten the motor pulley setscrew.

6. Adjust the proper belt tension.

7. Retighten the motor mounting bolts.

8. Reinstall the belt guard. All moving parts must be guarded.

Fig. 9

17 - ENG

MAINTENANCE

SERVICE INTERVAL

CLEANING THE AIR FILTER

A dirty air filter will reduce the compressor’s performance and life. To avoid

any internal contamination of the pump, the filter should be cleaned frequently,

and replaced on a regular basis. Felt filters should be cleaned in warm, soapy

water, rinsed, and allowed to air dry before reinstallation. Paper filters should be

replaced when dirty. Do not allow the filter to become filled with dirt or paint. If

the filter becomes filled with paint, it should be replaced. Direct exposure to dirty

conditions or painting areas will void your warranty.

CHECKING THE RELIEF VALVE

Pull the relief valve daily to ensure that it is operating properly and to clear the

valve of any possible obstructions.

TESTING FOR LEAKS

Check that all connections are tight. A small leak in any of the hoses, transfer

tubes, or pipe connections will substantially reduce the performance of your air

compressor. If you suspect a leak, spray a small amount of soapy water around

the area of the suspected leak with a spray bottle. If bubbles appear, repair or

replace the faulty component. Do not overtighten any connections.

STORAGE

Before storing the compressor for a prolonged period, use an air blow gun to

clean all dust and debris from the compressor. Disconnect the power cord and

coil it up. Pull the pressure relief valve to release all pressure from the tank. Drain

all moisture from the tank. Clean the filter element and filter housing; replace the

element if necessary. Drain the oil from the pump crankcase and replace it with

new oil. Cover the entire unit to protect it from moisture and dust.

Perform the following maintenance at the intervals indicated below.

Inspect and clean air filter ..........................................................................Daily

Check pump oil level ...................................................................................Daily

Change pump oil .................................................... Every 100 operating hours

........................................Use synthetic blend, non-detergent air compressor oil.

Operate the pressure relief valves .............................................................Daily

Check belt tension ................................................... Every 50 operating hours

Drain tank .....................................................................................................Daily

Check and tighten all bolts

(Do not overtighten) .............................................. .Every 100 operating hours

18- ENG

TROUBLESHOOTING

Note: Troubleshooting problems may have similar causes and solutions.

PROBLEM POSSIBLE CAUSE SOLUTION

Excessive current

draw trips circuit

breaker of motor reset

switch

Low voltage/motor

overload

Check that power

supply is adequate and

that compressor is on

a dedicated circuit. If

using extension cord,

try using without.

If compressor is

connected to a circut

protected by a fuse, use

dual element time delay

fuses (Buss Fusetron

type “T” only).

Drive belt too tight Readjust belt tension

Restricted air passages Inspect and replace

transfer tubes or

check valve, as

required.

Compressor stalls Low voltage motor Furnish adequate power.

Bad check valve Replace the check

valve.

Seized pump Contact authorized

service center.

Low discharge

pressure

Air leaks Tighten or replace

leaking fittings or

connections. Do not

overtighten.

Leaking valves Contact authorized

service center.

Restricted air intake Clean or replace air filter

element(s).

Blown gaskets Contact authorized

service center.

Worn piston rings or

cylinder

Contact authorized

service center.

Compressor pump

knocking

Loose engine pulley or

compressor flywheel

Retighten pulley

and flywheel. Check

alignment.

Low oil level in pump

crankcase

Keep oil at proper level

at all times.

Excess carbon on valves

or top of piston

Contact authorized

service center.

19 - ENG

PROBLEM POSSIBLE CAUSE SOLUTION

Oil in discharge air Worn piston rings or

cylinder

Contact authorized

service center.

Restricted air intake Clean or replace the air

filter element(s).

Oil level too high Reduce to proper level.

Overheating Poor ventilation Relocate compressor to

an area with cool, dry,

well circulated air, at

least 12 in. from nearest

wall.

Dirty cooling surfaces Clean all cooling

surfaces thoroughly.

Restricted air passages Replace transfer tubes

and/or unloader.

Excessive belt wear Pulley out of alignment Realign pulley with

compressor flywheel.

Improper belt tension Readjust.

Pulley wobbles Replace the pulley and

check for a damaged

crankshaft or flywheel.

Compressor

won’t start in cold

temperatures

Too much back pressure

in tank

Open petcock when

starting motor.

40W oil in crankcase Use synthetic blend,

non-detergent air

compressor oil.

Compressor too cold Move compressor to a

warmer location.

20- ENG

PARTS DRAWING

1

2

3

4

10

5

9

6

7

8

1

3

10

4 5

8

1

2

7

96

1

Torque to 125-150 lb-in.

NOTES:

Horizontal tank

Vertical tank

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