6.
7.
Install the pin.
CAUTION
Apply a light coating of petroleum jelly to the inner
edge of the dust and quad seals.
The centering springs are under tension. Re-
move the retaining ring carefully.
8.
The thrust bearing goes between the two races
(Fig. 76).
Put the thrust bearing and races into the housing.
10.Remove
the spring retaining ring and centering
springs from the spool.
IMPORTANT: Do not damage the dust or quad seals
when installing the spool and sleeve assembly.
Assembly (Fig. 75)
9.
spool and sleeve assembly and carefully slide the as-
sembly into the housing.
Apply a light coating of clean hydraulic fluid to the
CAUTION
10.Clamp
ing force to hold the housing securely.
thehousinginavise.Useonlyenoughclamp-
Use eye protection such as goggles when using
compressed air
11.
Lubricate and install a new O-ring seal in the groove
Check all mating surfaces. Replace any parts that have
scratches or burrs that could cause leakage. Wash all
metalpartsincleansolvent.Blowthemdrywithpressur-
ized air. Do not wipe parts dry with paper towels or cloth
as lint in a hydraulic system will cause damage.
in the housing.
12.Install
the wear plate and align screw holes in the
wear plate with threaded holes in the housing.
NOTE: The holes in the wear plate are symmetrical.
NOTE: Always use new seals and O--rings when as-
sembling the steering control valve.
13.Install
drive engages the pin.
the geroter drive, making sure the slot in the
IMPORTANT: During assembly, lubricate the new
seals with petroleum jelly. Also, lubricate machined
surfaces and bearings with clean hydraulic fluid.
14.Lubricate
groove.
and install new O-ring in wear plate
15.Install
the gerotor and align the screw holes.
1.
Install the quad seal (Fig. 76):
16.Lubricate
groove.
and install new O-ring in gerotor ring
A. Put one of the bearing races and sleeve into the
housing.
17.Lubricate
otor star groove.
and install new O-ring and seal ring in ger-
B. Together, the housing and bearing race create a
groove into which the quad seal will be installed.
18.Install
the spacer.
C. Hold the bearing race tightly against the input end
of the housing by pushing on the gerotor end of the
sleeve.
19.Install
the cap screws, in a crossing pattern, from 140 to 160
in-lb (16 to 18 N--m).
theendcapandseven(7)capscrews.Tighten
D. Fitthequadsealintoitsseatthroughtheinputend
of the housing. Be sure the seal is not twisted.
20.Remove
the steering control valve from the vise.
E. Remove the sleeve and bearing race.
Lubricate and install the dust seal.
21.Install
the relief valve and plug. Tighten the plug to
150
in-lb (17 N--m).
2.
3.
Install the centering springs in the spool. It is best to
install the two flat pieces first. Next, install the curved
pieces, three at a time.
Thrust Bearing
and Race (2)
Dust Seal
4.
Fit the retaining ring over the centering springs.
5.
spool and slide it into the sleeve. Be sure the centering
springs fit into the notches in the sleeve.
Apply a light coating of clean hydraulic fluid to the
Quad Seal
Figure 76
Groundsmaster 4100--D/4110--D
Page 4 -- 111
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Tags | Toro Groundsmaster 10177SL, Toro Groundsmaster 30447, Toro Groundsmaster 30449, Toro Groundsmaster 4100, Toro Groundsmaster 4110 D |
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| Document Type | Service Manual |
| Language | English |
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