Reference
Modification no.
- 0 -
Page
229
Date
1997 02 01
Main
914 F
01480
14.1.2) Electric starter single parts — check
See Pic. 198, 199 and 200.
After dis-assembly of starter, check the following parts:
Armature
Clean commutator, check for straightness, check visually, and if need be,
slightly machine and undercut segments U (see Pic. below). The insulation
should start 0,5 mm (0,02 in.) below face of segments.
â–² WARNING: During this machining process material
particles are set free and could possi-
bly be inhaled. Health hazard.
Check armature at 12 or 24 Volt with
test lamp between commutator I and
iron core O for connection to ground.
If the lamp lights up, renew armature.
Check windings for interruption, uti-
lizing 2 or 4 Volt supply and intercon-
nected amperemeter (measuring
range 60 A) (see Pic. 200). The armature has to be renewed if the ampere
readings differ essentially between sin-
gle segments. If the armature shows
heavy signs of overheating, renew it.
Check ball bearing P 6002 Z. At re-
newal, fit it with closed side facing to-
wards middle of armature (open side
{ facing outward). Inspect teeth }
and radial clearance of armature shaft
bearing E.
Bearings
Check bearing sleeve q in commutator housing, renew as necessary.
Carbon brushes
Carbon brushes w must be freely moving in their guides e. Renew too short
brushes (min. length 8 mm = 0,32 "). Check spring pressure, renew hot-run
brush springs r. Check connector sheath t of the plus-pole carbon brush
y, renew as required.
O-rings
Renew all O-rings u and oil seal i at repair of electric starter.
Starter housing
Visually check inner magnets o for cracks.
Studs
Visually check both studs p . To be removed only if required.
Pic. 199
7
Pic. 200
9
8
00232
00233
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