John Deere stx38 - Manual (Page 161)

3/21/97
4 - 77
ELECTRICAL REPAIR
REMOVE AND INSTALL STARTER
NOTE: Some starters may have a relay located at the
right-hand rear corner of battery compartment.
When installing connector to relay, make sure
all barrel terminals stay locked on connector
stud.
1. Disconnect negative battery cable.
2. Disconnect starter cable (B) from starter.
3. Remove starter cap screws (A) and starter.
4. Install starter and cap screws to specification.
5. Clean and fasten starter cable (B) to starter.
6. Clean and connect negative battery cable.
Specification:
Starter Cap Screws . . . . . . . . . . 24 N•m (216 lb-in.)
REPLACE BENDIX DRIVE
Replace drive if drive fails to engage flywheel or kicks
out repeatedly before engine starts.
1. Remove dust cover (A).
2. Compress retainer (C) and remove stop clip (B).
3. Disassemble bendix drive (D).
4. Inspect and replace with new Bendix Drive Kit.
REPAIR STARTER AND REPLACE
BRUSHES
NOTE: Highlight upper and lower marks (A) on frame
and end caps to aid assembly. Permanent
magnets are part of frame. If frame or magnets
are damaged replace frame. Always test
armature anytime starter is disassembled (see
Armature Test on next page).
1. Remove long cap screws (B) then separate top end
cap and armature from frame and bottom end cap
(brush holder).
2. Clean commutator of armature with a coarse, lint
free cloth. DO NOT use emery cloth. If
commutator is badly grooved, turn it down on a
lathe or replace it.
3. Clean negative brushes (C) contact point with end
cap. Using Ohmmeter, check for continuity with
end cap. Replace negative brushes if no
continuity is indicated.
M55854
A
B
M55915
D
C
A
B
M55921
A
B
M55918
C