Starting Motor - Disassemble - 42-MT
`
37-MT, 41-MT, and 42-MT Series Starting Motors
[SENR3581]
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Assemble - 37-MT and 41-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Assemble - 42-MT
ELECTRICAL AND STARTING SYSTEM
STARTING MOTOR GP
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor
37-MT, 41-MT, and 42-MT Series Starting Motors
Component Description
37-MT, 41-MT, and 42-MT Series Starting Motors
Normal Operation
37-MT, 41-MT, and 42-MT Series Starting Motors
No Load - Test
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Disassemble - 37-MT and 41-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
Engine Does Not Crank with Starting Motor On and Pinion Engaging Ring Gear
37-MT, 41-MT, and 42-MT Series Starting Motors
Brush and Brush Holder - Check
1.1. Disassemble the Starting Motor
Disassemble the Starting Motor
Note: The disassembly and assembly that follows is of the 24 volt starting motor. The 12 volt is similar.
Show/hide table
Required Tools     | |||
---|---|---|---|
Tool     | Part Number     | Part Description     | Quantity     |
A     | 1P-1855     | Retaining Ring Pliers     | 1     |
B     | 1P-0510     | Driver Gp     | 1     |
- Disconnect wire assembly (4) from solenoid (1). Disconnect motor terminal connector (3) from the starting motor housing.
Show/hide table
![]() | |
Illustration 1 | g00810559 |
- Remove three bolts (2) from the shift lever housing. Do not disassemble the solenoid. The parts inside the solenoid are not serviceable.
- Remove the O-ring seal and bushing (5) .
Show/hide table
![]() | |
Illustration 2 | g00818016 |
- Remove the nut (6). Remove the solenoid from the shift lever housing.
Show/hide table
![]() | |
Illustration 3 | g00810580 |
- Remove the negative terminal nuts "-", wire assembly (2), and washers. Remove six bolts (8) and rear housing (7) .
Show/hide table
![]() | |
Illustration 4 | g00810574 |
- If necessary, remove bushing (9) from the rear housing.
Show/hide table
![]() | |
Illustration 5 | g00818558 |
- Remove washer (12) from the armature shaft. Lift brush springs (10) and pull the brushes away from the commutator. Position the brush springs (10) on the side of the brushes in order to hold the brushes in the holders.
Show/hide table
![]() | |
Illustration 6 | g00810576 |
- Disconnect field winding leads (13) from brush holder (11). Remove the brush holder.
- Remove brushes (15) and negative "-" terminal (14) from the brush holders.
Show/hide table
![]() | |
Illustration 7 | g00818538 |
- Scribe a line on the pinion drive, the shift lever and the starting motor housings for the correct alignment at assembly.
Show/hide table
![]() | |
Illustration 8 | g00810579 |
- Remove six bolts (17) and pinion drive housing (16) .
- Remove retainer (18) with tool (A). Remove shift lever pin (20). If necessary, remove the O-ring seals from the shift lever pin.
Show/hide table
![]() | |
Illustration 9 | g00810582 |
- Remove pinion drive (19) and the shift lever.
- Remove the brake disc from the armature shaft. Remove five bolts (22), shift lever housing (21) and the washer. If necessary, remove the outside O-ring seals.
Show/hide table
![]() | |
Illustration 10 | g00810585 |
- If necessary, remove the seal and the bushing from the shift lever housing.
- Remove armature (22) from the starting motor housing.
Show/hide table
![]() | |
Illustration 11 | g00810588 |
- Remove the following components from the starting motor housing: eight screws (26), pole shoes (25) and field winding coil (24). It may be necessary to use an impact driver to remove screws (26) .
Show/hide table
![]() | |
Illustration 12 | g00810589 |
- Clean the armature, field winding coil and pinion drive with mineral spirits and a brush.
Note: If the commutator is dirty, the commutator may be cleaned with Number 00 sandpaper. Do not use emery cloth.
- Inspect all parts for wear and damage.
Information System:
330C Excavator
Engine Oil and Filter - Change
W345B Series II Material Handler Hydraulic System
Main Control Valve
W345B Series II Material Handler Hydraulic System
Main Hydraulic System
325C and 325C L Excavator
Engine Speed Control
312C Excavator 3064 Engine Supplement
Fan - Remove and Install
312C Excavator 3064 Engine Supplement
Fan Guard - Remove and Install
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Assemble - 37-MT and 41-MT
2001/07/30
The Corrections for Parts Manual, HEBP1719-05 are Now Available {1000, 5057, 5061, 7000}
312C Excavator Machine Systems
Bucket Cylinder - Install
2001/07/16
An Improved Seal Kit for the Second Generation ALA Swivel is Available {5060}
Installation of the Update of the Swing Drive System for the 5130B Excavator{5057, 5058, 5059, 5459}
5130B Excavator Hydraulic System
Relief Valve (Main)
Procedure for the Repair of Compensator Valves in the Main Hydraulic Control Valve{5051, 5086}
5230B Excavator Electronic Systems Guide
Related Components
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Assemble - 42-MT
385B Excavator
Monitoring System
385B Excavator
Main Menu
HDB Series and M1 Series Heavy Duty Brushless Alternators
Alternator
2002/01/07
A New Exhaust Seal And A New Exhaust Manifold Sleeve Are Used In The Exhaust Manifold Groups {1059}
5230B Excavator Electronic Systems Guide
Diagnostic Code List
385B Excavator
Boom, Stick and Bucket Linkage - Lubricate
312C Excavator 3064 Engine Supplement
Expansion Tank - Remove and Install
3500B Engines
Jacket Water Cooling Circuit
325C Excavator
Safety Messages - Arrangement I