Toro Greensmaster 3200 Service Manual page 137

Disassembly (Fig. 50)
1. Make sure caps or plugs are in motor openings to
prevent contamination. Clean motor with solvent.
2. Make a scribe mark diagonally across the front
plate, body, adapter plate, body, and back–up plate for
reassembly purposes (Fig. 51).
IMPORTANT: Use extreme caution when using a
vise to hold the gear pump. Do not over tighten.
Parts may be distorted.
3. Secure gear pump in a vise with the shaft end up.
Remove eight cap screws and four washers from the
pump.
4. Remove gear pump from the vise. Position pump
with the shaft end facing down.
5. Remove back plate from front body by tapping back
plate with a soft face hammer. Remove O–ring from the
back plate with a O–ring pick.
6. Remove back body from adapter plate by tapping
body with a soft face hammer.
7. Remove back idler gear from the wear plate and
adapter plate. Remove back gear from the drive gear
shaft.
8. Remove wear plate with pressure seal and back–up
gasket from the adapter plate. Note position of the open
side of the wear plate.
9. Remove key from the drive gear shaft with a pencil
magnet.
10. Remove O–ring from the adapter plate with a O–
ring pick.
11. Remove adapter plate from body by tapping adapt-
er plate with a soft face hammer. Remove O–ring from
the other side of the adapter plate with an O–ring pick.
12. Remove second front body from the front plate.
13. Remove remaining front idler gear and drive gear
from the wear plate and front plate. Remove O–ring from
front plate.
14. Remove wear plate with pressure seal and back–up
gasket from the front plate. Note position of the open
side of wear plate. Do not remove plug from front plate.
15. Remove back–up gaskets and pressure seals from
both wear plates with an O–ring pick.
Inspection (Fig. 50)
1. Remove all nicks and burrs from all parts with an
emery cloth.
Greensmaster 3200/3200–D
SCRIBE MARK
Use eye protection such as goggles when
using compressed air.
2. Clean all parts with solvent. Dry all parts with com-
pressed air.
3. Inspect gear, drive gear, and idler gears for the fol -
lowing:
A. Drive gear shaft spline should be free of twisted
or broken teeth.
B. Gear shafts should be free of rough surfaces and
excessive wear at bushing points and sealing
areas.
C. Gear shaft diameter in the bushing area should
not be less than 0.748 inch (19.0 mm).
D. Gears should be free of excessive scoring and
wear.
E. Make sure drive and idler gears have their snap
rings in the grooves on each side.
F. Break sharp edges of gear teeth with emery
cloth.
G. Gear width on the drive gear and front idler gear
should not be less than 0.384 inch (9.75 mm). Gear
width on the back gear and back idler gear should
not be less than 0.244 inch (6.20 mm).
4. Inspect body for the following:
A. Gear pockets should be free of excessive scor-
ing and wear.
B. Inside diameter of gear pockets should not ex-
ceed 1.719 inches (43.7mm).
Page 5 – 65
Figure 51
CAUTION
Hydraulic System