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Groundsmaster 4100--D/4110--D Hydraulic SystemPage 4 -- 121
IMPORTANT: Mark the relative positions of the gear
teeth and the bearing b locks so they ca n be re-
assembled in the same position. Do not touch the
gear surfaces as residue on handsmay be corrosive
to gear finish.
8. Place the motor on its side andpush on the rear bear-
ing block to remove the bearing block and gear set (Fig.
93).
9. Carefully remove and discard O--rings, pressure
seals and back--up rings (Fig. 94) from motor. Do not
cause any damage to the machined grooves during the
removal process.
IMPORTANT: Make sure to not damage the counter
bore when removing the shaft seal from the front
plate.
10.Position front flange with seal side up. Carefully re-
move shaft seal from front flange.
Inspection
1. Remove any nicks and burrs f rom all motor compo-
nents with emery cloth.
CAUTION
Use eye protection such as goggles when using
compressed air.
2. Clean all motor components with clean solvent. Dry
all parts with compressed air.
3. Inspect drive gear, idler gear and bearing blocks
(Fig. 95) for the following:
A. Gear shafts should be free of rough surfaces and
excessive wear at bushing points and sealing areas.
Scoring, rough surfaces or wear on gear s hafts indi-
cates need for replacement.
B. Gear teeth should be free of excessive scoring
and wear. Any broken or nicked gear teeth must be
replaced.
C. Inspect gear face edge for sharpness. Sharp
edges of gears will mill into bearing blocks and, thus,
must be replaced.
D. Bearing areas of bearing blocks should not have
excessive wear or scoring.
E. Face of bearing blocks that are in contact with
gears should be f ree of wear, roughness or scoring.
4. Inspect front flange and rear cover for damage or
wear.
1. Motor body 2. Bearing block & gear set
Figure 93
1
2
Figure 94
1. Drive gear
2. Idler gear
3. Bearing block
Figure 95
1
3
2
3
Hydraulic
System