3.
shaft end down.
Clamp mounting flange of pump in a vise with the
CAUTION
4.
5.
Loosen cap screws from the back plate.
Use eye protection such as goggles when using
compressed air.
Remove pump from the vise. Turn pump so that the
shaft end is facing down. Remove cap screws.
2.
pressed air.
Clean all parts with solvent. Dry all parts with com-
6.
Remove back plate from the rear body.
7.
Carefully remove rear body. Lift body straight up to
3.
(Fig. 73):
Inspect drive gears and idler gears for the following
remove. Make sure the rear wear plate remains on the
drive andidler gear shafts. Remove and discard o--rings
from the rear body.
A. Drivegearshaftsplineshouldbefreeoftwistedor
broken teeth.
IMPORTANT: Note position of the open and closed
side of the wear plates before removing from the
adapter plate. Also, identify wear plates (front and
rear) for proper reassembly.
B. Gear shafts should be free of rough surfaces and
excessive wear at bushing points and sealing areas.
Scoring, rough surfaces, or wear on gear shafts indi-
cates need for replacement.
8.
Carefully remove rear wear plate, idler gear, drive
gear, and front wear plate from the adapter plate.
C. Gear teeth should be free of excessive scoring
and wear. Any broken or nicked gear teeth must be
replaced.
9.
Remove coupler from the drive gear shaft.
adapter plate.
Carefully remove front body. Lift body straight up to
10.Remove
D. Inspect gear face edge for sharpness. Sharp
edges of gears will mill into wear plates and, thus,
must be replaced.
11.
remove. Make sure the rear wear plate remains on the
drive andidler gear shafts. Remove and discard o--rings
from the front body.
3
IMPORTANT: Note position of the open and closed
side of the wear plates before removing from the
frontplate.Also,identifywearplates(frontandrear)
for proper reassembly.
2
12.Carefully
remove rear wear plate, idler gear, drive
gear, and front wear plate from front plate.
13.Remove
wear plates.
back--up gasket and pressure seal from all
1
4
NOTE: Gear pumpsonearlyproduction machines may
havehadashaftsealandretainingringinthefrontplate.
Pumps used on later production machines did not have
a seal or retaining ring. The seal and retaining ring are
not needed on any Groundsmaster 3500--D.
Figure 73
3.
4.
1.
2.
Gear shaft spline
Gear shaft
Gear teeth
Gear face edge
4.
Inspectgearbodiesforexcessivescoring,gougesor
wear. Evidence of damage indicates need for compo-
nent replacement.
14.If
them from the front plate. Make sure to not damage the
front plate counter bore when removing components.
retaining ring and seal exist in front plate, remove
15.Discard
all removed seals and gaskets.
Inspection (Fig. 71)
Remove all nicks and burrs from all pump parts with
1.
emery cloth.
Groundsmaster 3500--D
Page 4 -- 103 Rev. F
Hydraulic System (Rev. D)
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| Tags | Toro Groundsmaster 3500 D |
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| Language | English |
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