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ELECTRICAL COMPONENTS: KEY-START WITH
NEUTRAL REV GAS VEHICLE
WAVETEK
V
1000
200
20
2
200
m
2000
k
200k
20k
!
V
COM
MAX
1000 ---
750V
1
1. 200 Ohm Setting 2. Commutator 3. Armature Shaft
497
STARTER/GENERATOR REWORK
Any rework must be performed by a qualified technician. Starter/Generator service specifications are listed in the
following table.
Commutator diameter (minimum)
Concentric with armature shaft within
Limit depth of cut when machining commutator
If undercut of segment insulator is less than 0.016 inch (0.406 mm), then it should be undercut to
Dielectric strength
Armature insulation resistance
Starter field coil resistance
Generator field coil resistance
STARTER/GENERATOR ASSEMBLY
1.
Place the field coil into the housing. The two insulators that look alike fit into the slots next to the F1 and F2
markings on the outside of the housing. The insulator that looks different slides into the slot next to the DF marking.
2.
After the insulators are seated in the slots, install the threaded terminals through the wire connectors and then
through the insulators. Install a flat washer, lockwasher and nut onto each threaded terminal on the outside of the
housing. Tighten nuts to 47.5 in-lb (5.4 N·m) (Figure 13-10, Page 13-6). See following CAUTION.
CAUTION
• Route the field terminal wires so that they will not contact the armature.
3.
Install the four pole pieces into the housing. Use the four screws to secure pole pieces to the inside of the housing
to retain the field wires. Tighten screws to 9 ft-lb (12.2 N·m) (Figure 13-10, Page 13-6).
2007-2009 Turf 252, Carryall 252 and XRT 900 Maintenance and Service Manual
5XL
V
OFF
500
200
200
2m
20
m
200
m
200
2k
A
!
200nA
FUSED
Figure 13-12 Armature Ground Test
ITEM
Starter/Generator
2
3
SERVICE LIMIT
1.535 in. (39 mm)
0.002 in. (0.051 mm)
0.007 in. (0.2 mm)
0.031 in. (0.8 mm)
500 VAC for one minute
0.2M ohms at 500 VDC
0.006-0.01 ohms
4.5-5.5 ohms
13
Page 13-9
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