Disassembly (Fig. 5)
2. Ifsealswereremoved,pressnewsealsintohousing.
Seal lips should be facing up.
IMPORTANT: Do not reuse flange head screw with
patch lock after it has been removed.
3. Place flat washer (item 5) onto shaft of the Pitman
arm (item 19). Insert shaft into steering housing.
1.
Remove flange head screw with patch lock (item 9)
and stepped washer (item 8) from Pitman arm. Discard
flange head screw.
IMPORTANT: The position of the Pitman arm and
sector gear is critical during assembly. If either or
both of these parts is replaced, make sure their
alignment matches the matchmark position of the
original gear and arm.
2.
Remove flange head screw with patch lock (item 13)
andflatwasher (item 12)from piniongear shaft.Discard
flange head screw.
4.
Pitman arm shaft.
Position sector gear (item 4) onto the spline of the
3.
Remove three (3) hex washer head screws (item 2)
securing the housing cover and gasket to the steering
housing. Remove cover and gasket from the housing.
Replace gasket if damaged.
IMPORTANT: Make sure sector gear is centered to
the pinion gear.
4.
free of damage that prevents them of free movement.
Inspect gears. Sector and pinion gear teeth must be
5. Insert pinion gear (item 17) into the small bearing in
the steering housing.
5.
Remove pinion gear (item 17) from the housing.
6. Fill steering housing with number 2 general purpose
grease. Make sure all gear teeth on the sector and pin-
ion gears are covered with grease.
IMPORTANT: Matchmark pitman arm shaft and sec-
torgear.Theirpositioniscriticalduringreassembly.
7.
housing. Secure cover to housing with three (3) hex
washer head screws (item 2). Torque screws from 90 to
110
Place gasket and steering housing cover onto the
6.
(item 4) and steering housing and remove from the
housing.
Separate Pitman arm (item 19) from the sector gear
in--lb (10.2 to 12.4 N--m).
7.
be free of damage. Press bearings and spacer out of
housing if necessary.
Inspect bearings. Bearings must spin smoothly and
IMPORTANT: Flange head screws with patch lock
(items 9 and 13) should be replaced whenever they
are removed.
8.
Replace seals if necessary.
Inspect seals. Seals must be free of rips and tears.
8.
Secure stepped washer and flange head screw with
patchlock(item9)tothePitmanarm(item8).Makesure
topositionsteppedwasherasshowninFigure5.Torque
screw from 27 to 33 ft--lb (37 to 44 N--m).
Assembly (Fig. 5)
IMPORTANT: Always replace ball bearings as a set.
9.
Secure flat washer (item 12) and flange head screw
with patch lock (item 13) to the pinion gear shaft. Torque
screw from 175 to 225 in--lb (20 to 25 N--m).
1.
If ball bearings were removed:
A. Press new bearing into housing from the inside
first.
10.After
arm rotates freely from stop to stop without binding.
assembly is completed, make sure that pitman
B. Turn housing over. Insert spacer and press new
bearing into housing.
Workman MD/MDX
Page 7 -- 13
Chassis
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
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| Document Type | Service Manual |
| Language | English |
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
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