Starting Motor - Assemble - 37-MT and 41-MT
Assemble the Starting Motor
Show/hide table
Required Tools     | |||
---|---|---|---|
Tool     | Part Number     | Description     | Quantity     |
A     | 1P-1855     | Retaining Ring Pliers     | 1     |
B     | 1P-0510     | Driver Gp     | 1     |
- Put SAE 20W oil on all bushings, seals and oil wicks.
Show/hide table
Illustration 1 | g00810281 |
- Put field winding coil (29) and pole shoes (30) in position in the starting motor housing. Put 9s-3263 Thread Lock Compound on the threads of screws (31). Tighten to a torque of 20.3 ± 2.3 N·m (179.7 ± 20.4 lb in).
- Install bushing (27) and seal (28) into the shift lever housing. Use tool group (B) .
Show/hide table
Illustration 2 | g00810276 |
- Put the O-ring on the shift lever housing (22) .
Show/hide table
Illustration 3 | g00810419 |
- Install the seals on pin (26). Hold shift lever (24) in shift lever housing (22) and install pin (19) through the housing and lever (24). Install ring (23) with tool (A) .
- Put shift lever housing (22) in position on the starting motor housing. Install bolts (25) and tighten bolts (25) to a torque of 18.9 ± 2.6 N·m (167.3 ± 23.0 lb in).
Show/hide table
Illustration 4 | g00810272 |
- Put 5P-0960 Molybdenum Grease on the armature bushing areas. Do not put grease on the armature core or the commutator. Install washer (21) on armature (18). Put armature (18) into the starting motor housing. Hold pinion drive (20) in the shift lever fork and insert armature (18) through the shift housing and pinion drive.
Note: The pinion drive that is on the 41-MT starting motor is not same pinion drive that is shown. The pinion drive is similar to a 42-MT starting motor. Refer to Disassembly and Assembly, "Starting Motor - Assemble".
Show/hide table
Illustration 5 | g00810429 |
- Put retainer (17) on armature shaft (18). Install ring (19) into the groove and force retainer (17) over ring (19) in order to lock the ring in position.
Show/hide table
Illustration 6 | g00810266 |
- Install bushing (16) into the pinion drive housing with tool group (B) .
Show/hide table
Illustration 7 | g00810257 |
- Put pinion drive housing (14) in position on shift lever housing (22). Install bolts (15) and tighten the bolts to a torque of 23.7 ± 6.1 N·m (209.8 ± 54.0 lb in).
Show/hide table
Illustration 8 | g00810444 |
Show/hide table
Illustration 9 | g00810249 |
- Install brushes (11) on brush holder (12). Tighten the screws to a torque of 2.9 ± 1.0 N·m (25.7 ± 8.9 lb in).
Show/hide table
Illustration 10 | g00810455 |
Show/hide table
Illustration 11 | g00810245 |
- Put the brush holder in position on the starting motor housing. Connect three leads (10). Tighten the screws to a torque of 2.9 ± 1.0 N·m (25.7 ± 8.9 lb in). Push the brushes against the commutator so the brush springs are on top of the brushes.
- Install bushing (10) into rear of the housing with tool group (B) .
Show/hide table
Illustration 12 | g00810242 |
- Install the O-ring seal on the back of the starting motor housing. Put washer (9) on the back of the armature. Put rear housing (6) in position on the starting motor housing. Install bolts (7) and tighten the bolts to a torque of 5.7 ± 1.1 N·m (50.4 ± 9.7 lb in).
Show/hide table
Illustration 13 | g00810478 |
Show/hide table
Illustration 14 | g00810222 |
- Put the O-ring seal on the shift lever housing. Put solenoid (1) in position on the shift housing. Make sure that the end of the plunger is inserted into the shift lever.
Show/hide table
Illustration 15 | g00810493 |
- Install the three bolts and tighten the bolts to a torque of 14.1 N·m (124.8 lb in) to 21.5 N·m (190.3 lb in).
Show/hide table
Illustration 16 | g00810179 |
- Connect motor terminal "MTR" (3) to the starter motor housing. Hold the terminal with a T40 TORX wrench. Tighten the nut on the solenoid motor terminal to a torque of 14.7 ± 3.4 N·m (130.1 ± 30.1 lb in). Tighten the motor terminal bolt to 9.6 ± 1.1 N·m (85.0 ± 9.7 lb in).
- Connect the shunt wire assembly (4) to the solenoid (1) and to the starting motor. Tighten the nuts for the shunt wire assembly to a torque of 2.6 ± 0.8 N·m (23.0 ± 7.1 lb in).
- Install the nut (6) for the plunger finger tight. The plunger must be adjusted for the correct pinion clearance.
Show/hide table
Illustration 17 | g00810580 |
- Check pinion clearance. Refer to Testing and Adjusting, "Pinion Clearance Adjustment" for the proper adjustment procedure.
- Install plug (5) and seal to the shift lever housing.
Show/hide table
Illustration 18 | g00820183 |
End By: Install the starting motor.
Caterpillar Information System:
G3304 and G3306 Engines Restriction of Air Inlet and Exhaust
3034 Marine Engine Marine Transmission Oil Cooler Core - Remove and Install
3034 Marine Engine Engine Oil Cooler - Install
3034 Marine Engine Engine Oil Cooler - Remove
3500B and 3500 Marine Propulsion Engines with EUI Option Centrifugal Oil Filter - Inspect
3034 Marine Engine Inlet Manifold - Remove
3512B Marine Auxiliary Engine MID 047 - CID 0190 - FMI 07 Primary Speed Sensor misinstalled
3034 Marine Engine - Installation Guide Fuel System
3126B Marine Engines Glossary
G3600 Engines Engine Design
3512B Marine Auxiliary Engine MID 047 - CID 0342 - FMI 07 Secondary Speed Sensor misinstalled
G3304 and G3306 Engines Basic Engine
G3304 and G3306 Engines Measuring Inlet Manifold Temperature
3034 Marine Engine Auxiliary Water Pump - Remove
3034 Marine Engine Auxiliary Water Pump - Install
3034 Marine Engine Auxiliary Water Pump - Disassemble
G3304 and G3306 Engines Measuring Inlet Manifold Pressure
37-MT, 41-MT, and 42-MT Series Starting Motors Starting Motor - Disassemble - 42-MT
G3500 Engines Air Inlet and Exhaust System Components
3034 Marine Engine Auxiliary Water Pump - Assemble
3034 Marine Engine Crankcase Breather - Remove and Install
37-MT, 41-MT, and 42-MT Series Starting Motors Starting Motor - Assemble - 42-MT
G3500 Engines Aftercooler
3034 Marine Engine Valve Mechanism Cover - Remove and Install