Toro Greensmaster TriFlex 3400 - Page 135

Greensmaster 3300/3400 Hydraulic SystemPage 5 -- 83
6. Carefully remove body from front cover. Lift body
straightuptoremove.Makesuretherearthrustplatere-
mains on the drive and idler gear shafts. Remove and
discardO--r ingfromthebody.Locateandretrievedowel
pins (item 19).
IMPORTANT: Note position of the open and closed
side of the thrust plates before removing. Also,
identify thrust plates (front and rear) with a marker
for proper assembly.
IMPORTANT: Marktherelative positions ofthe gear
teeth and the thrust plates so they can be as-
sembledinthesameposition.Donottouchthegear
surfaces as residue on hands may be corrosive to
gear finish.
7. Carefully remove rear thrust plate, idler gear, drive
gear and front thrust plate from the front cover.
8. Remove and discard back--up and pressure seals
from thrust plates.
9. Turn front cover over, with seal side up.
IMPORTANT: Make sure to not damage the front
cover counter bore when removing the seals from
the cover.
10.Carefully remove dust seal, retaining ring, back--up
washerandshaftsealfromthefrontcover(Fig.61).Dis-
card removed seals.
Inspection
1. Remove any nicks and burrs from all parts with
emery cloth.
CAUTION
Use eye protection such as goggles when using
compressed air.
2. Clean all parts with solvent. D ry all parts with com-
pressed air.
3. Inspect drive gears and idler gears for the following
(Fig. 62):
A. Gear shaftsshouldbefreeofr ough surfacesand
excessivewearatbushingpointsandsealingareas.
Scoring, roughsurfaces or wear ongearshafts 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 wear plates and, thus,
must be replaced.
4. Inspect wear plates for the following:
A. Bearingareasshouldnothaveexcessivewearor
scoring.
B. Face ofwearplates thatareincontactwithgears
should be free of wear, roughness or scoring.
C. Thickness of wear plates should be equal.
5. Inspect front flange and rear cover for damage or
wear.
Figure 61
1
2
3
4
1. Dust seal
2. Retaining ring
3. Back--up washer
4. Shaft seal
1. Gear shaft spline
2. Gear shaft
3. Gear teeth
4. Gear face edge
Figure 62
3
4
1
2
Hydraulic
System