7.
Carefully remove housing by lifting housing straight
4. Inspect bearing blocks for the following:
up. Make sure the rear bearing block remains on the
driveandidler gear shafts. Remove and discard o--rings
from the housing.
A. Bearingareasshouldnothaveexcessive wearor
scoring.
B. Face of bearing blocks that are in contact with
gears should be free of wear, roughness or scoring.
IMPORTANT: Note position of the open and closed
side of the bearing blocks before removing. Also,
identifybearingblocks(frontandrear)forproperre-
assembly.
C. Thickness of bearing blocks should be equal.
5.
wear.
Inspect front flange and rear cover for damage or
8.
gear, and front bearing block from the front flange.
Carefully remove rear bearing block,idler gear,drive
9.
Remove and discard pressure seals from bearing
blocks.
3
10.Turn
front flange over, with seal side up.
2
IMPORTANT: Make sure not to damage the counter
bore when removing the shaft seals and retaining
ring from the front flange.
11.
shaft seal from the front flange. Discard seals.
Remove outer shaft seal, retaining ring and inner
1
Inspection
4
1.
emery cloth.
Remove any nicks and burrs from all parts with
Figure 80
3.
4.
1.
2.
Gear shaft spline
Gear shaft
Gear teeth
Gear face edge
CAUTION
Reassembly (Fig. 78)
NOTE: When reassembling themotor,check themark-
er or scribe marks on each part to make sure the parts
are properly aligned during reassembly.
Use eye protection such as goggles when using
compressed air.
1.
grooves with a thin coat of petroleum jelly. Lubricate all
other internal parts freely with clean hydraulic oil.
Lubricate o--rings,pressure seals,andbearingblock
2.
pressed air.
Clean all parts with solvent. Dry all parts with com-
3.
(Fig. 80):
Inspect drive gears and idler gears for the following
2.
facing in(Fig.81).Seal should be pressed into placeun-
til it reaches the bottom of the bore.
Install inner shaft seal into front flange with seal lip
A. Drivegearshaftsplineshouldbefreeoftwistedor
broken teeth.
3.
Install retaining ring into the groove of the front
flange.
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.
4.
Install outer shaft seal in front flange with seal lip fac-
ing out (Fig. 81). Seal should be pressed into place until
it reaches the bottom of the bore.
C. Gear teeth should be free of excessive scoring
and wear. Any broken or nicked gear teeth must be
replaced.
5.
face.
Place front flange, shaft seal side down, on a flatsur-
6.
bearing blocks.
Install the pressure seals into the grooves in the
D. Inspect gear face edge for sharpness. Sharp
edges of gears will mill into bearing blocks and, thus,
must be replaced.
7.
Applyalightcoatingofpetroleumjellytotheexposed
side of the front flange.
Groundsmaster 4500--D/4700--D
Page 4 -- 91
Hydraulic System (Rev. A)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 4500 D, Toro Groundsmaster 4700 D |
| Download File |
|
| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower |
| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
(0 votes, average: 0 out of 5)