6.
plate. Locate and remove dowel pins from body.
Remove front plate from the body, then remove back
D. Bearing areas of bearing blocks should not have
excessive wear or scoring.
IMPORTANT: Mark the relative positions of the gear
teeth and bearing blocks so they can be assembled
in the same position. Do not touch the gear surfaces
as residue on hands may be corrosive to gear finish.
E. Face of bearing blocks that are in contact with
gears should be free of wear, roughness or scoring.
3.
Inspect front plate and back plate for damage or
wear. Replace pump if plates are damaged or worn.
7.
block to remove bearing blocks and gear set from the
pump body.
Place pump on its side and push on the rear bearing
3
1
NOTE: Pressure seals and back–up rings fit in grooves
machined into bearing blocks. O–rings fit in grooves ma-
chined in the pump body.
8.
Carefully remove and discard O–rings, pressure
seals and back–up rings from pump body and bearing
blocks. Do not cause any damage to the machined
grooves during the removal process.
2
9.
the retaining ring.
Turn front plate over, with seal side up and remove
4
Figure 98
IMPORTANT: Make sure to not damage the counter
bore when removing the shaft seal from the front
plate.
1.
2.
Gear shaft spline
Gear shaft
3.
4.
Gear teeth
Gear face edge
Assembly (Fig. 96)
10.Carefully
remove shaft seal from the front plate.
NOTE: When assembling the pump, check the V–
shaped marker line made during disassembly to make
sure components are properly aligned.
11.
If necessary, remove implement relief valve from
back plate. Remove and discard sealing washers.
Inspection
1. Lubricate new O–rings, pressure seals and back–up
gaskets with a thin coat of petroleum jelly. Lubricate all
internal pump parts freely with clean hydraulic oil.
CAUTION
2.
Install new shaft seal in front plate. Seal should be
pressed into place until it reaches the bottom of the bore.
Use eye protection such as goggles when using
compressed air.
3.
4.
5.
Install retaining ring into the groove of the front plate.
Install lubricated O–rings to the body.
1.
Clean all pump parts with solvent. Dry all parts with
compressed air.
Install lubricated pressure seals into the machined
grooves of the bearing blocks and follow by carefully
placing the back–up rings into the grooves.
2.
the following. If damage is found, pump replacement is
necessary.
Inspect drive gear, idler gear and bearing blocks for
6.
Lubricate gear faces and bearing surfaces of drive
gear, idler gear and bearing blocks with clean hydraulic
oil. Carefully assemble bearing blocks and gears noting
identification marks made during disassembly.
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 shafts indi-
cates need for replacement.
7.
Position the pump body on its side. Carefully slide
bearing block and gear assembly into the body cavity
using identification marks made during disassembly.
B. Gear teeth should be free of excessive scoring
and wear. Any broken or nicked gear teeth must be
replaced.
8.
Remove any excess lubrication from mating sur-
faces of body, back plate and front plate. Make sure that
these surfaces are clean and dry.
C. Inspect gear face edge for sharpness. Sharp
edges of gears will mill into bearing blocks and, thus,
must be replaced.
Groundsmaster 7200/7210
Page 4 – 81
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 7200, Toro Groundsmaster 7210 |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Publisher | toro.com |
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My mower is a TORO 7210.
Start fuse defection. Why ?