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ITEM # PART # DESCRIPTION
1 19015* Motor Base - Upper, STP Trimmer
2 10197 Bolt - Carriage 5/16-18X1 GR5 ZY
3 19019 Bearing - 1/2" Flange Mounted
4 10216 Bolt - Carriage 5/16-18X3/4 GR5 ZY
5 NB170 Nut - Serr Flange 5/16-18 ZY
6 NB604 Bolt - 3/8-16 X 1 GR5 ZY
7 21805 Bearing - Side Flange, 3/4" ID
8 NB182 Nut - Nyloc 3/8-16 ZY
9 NB107 Bolt - 3/8-16 X 1 1/2 HCC GR5 ZY
10 T30V Pulley - Idler Clutch, 2 3/4 OD
11 NB174 Nut - Jam 3/8-16 ZY Grade 2
12 19024* Idler Arm - Transmission
13 7821 Latch Spring
14 NB272 Washer - SAE Flat 3/8 ZY
15 NB280 Nut - 2 Way Lock 3/8-16 ZY
16 19020 Transmission - String Trimmer
17 21808Z Axle - STP Trimmer, 3/4" ZP
18 26X249 Screw - .312-18 x .75
19 19087* Guard - Chain; Trimmer
20 NB501 Bolt - 5/16-18 X 1 HCC GR5 ZY
21 NB579 Washer - Fender, 5/16 X 1 1/4 OD ZY
22 16823 Bushing - Shoulder 3/8, ZT60
23 19023* Bracket - Idler Arm, SP Trimmer
24 19053 Belt - 24", SP Trimmer
25 NB126 Pin - Cotter, 1/8 X 1
26 19036 Pin - Cotter, 3/16 X 2.25; ZP
27 21806 Spacer - 1.25 OD X .75 ID X .375
28 21807 Sprocket - No. 35, 60 Teeth, 3/4" Bore
29 19035 Pin - Cotter, 1/8 X 1-1/2; ZP
30 19021 Sprocket - No. 35, 10 Teeth; 1/2" Bore
31 19044 Chain - ANSI #35, 70 Link Loop
32 MWB Bearing - Wheel, 1 1/8"OD X 1/2"ID
33 19045*** Clutch - Wheel, 1.125 OD X 0.5 ID
34 19026** Wheel - 14", 1/2" Bearings; Trimmer
35 NB177 Washer - Mach 1/2 NR 14 GA
Drive Train Assembly
When ordering replacement parts
* Use paint code: TK=Black
** Wheels include two bearings. Use part # MWB when replacing bearings only.
Note: Optional wheel kits are available that include the bearings and wheel clutch
installed. Order part # 19085 for left wheel kit and part # 19086 for right wheel kit.
*** Wheel clutch must be installed in the correct orientation in order to operate
properly. Wheel clutch is installed correctly when wheels spin freely while
trimmer is moving forward without the engine running (wheels will have resistance
when trimmer is moving backward). One of the wheel bearings may need to be
removed prior to installing the wheel clutch. The wheel clutch has an arrow on the
side to indicate the “free-wheel” direction. Ensure clutch is orientated so the free-
wheel direction corresponds to direction the wheel will rotate while trimmer is
moving forward and press the clutch into the center of the wheel (interference fit).
Then replace the wheel bearing and install the wheel on the axle.
Important! Rotate wheel in free-wheel direction while mounting on axle
(
spin and push at the same time). Ensure both wheel bearings remain fully
seated in wheel during wheel installation and operation. Failure to do so may
cause damage to wheel clutch.
12
Arrow on clutch
s
hows direction
wheel spins freely
when installed.