Toro 10176SL Service Manual Models 30448 30446 Groundsmaster 4000 4010 D D Preface

8.
The  thrust   bearing  goes   between  the   two  races
(Fig. 86).
Put the thrust  bearing and races into  the housing.
CAUTION
IMPORTANT: Do not damage the dust or quad seals
when installing the spool and sleeve assembly.
The  centering springs  are  under tension.  Re-
move the retaining ring carefully.
9.
spool and sleeve assembly and slide  carefully the as-
sembly into the housing.
Apply a light  coating of clean hydraulic fluid  to the
10.Remove
springs from the spool.
the  spring  retaining  ring  and  centering
Assembly (Fig. 85)
10.Clamp
thehousinginavise.Useonlyenoughclamp-
ing force to hold the housing securely.
Check  all  mating surfaces.  Replace  any  parts  with
scratches or burrs that could cause leakage. Wash all
metalpartsincleansolvent.Blowthemdrywithpressur-
ized air. Do not wipe parts dry with paper towels or cloth.
Lint in a hydraulic system will cause damage.
11.
Lubricate and install a new o-ring seal in the groove
in the housing.
12.Install
the wear plate  and align screw holes  in the
wear plate with threaded holes in the housing.
NOTE:  Always use new seals and  O--rings when as-
sembling the steering control valve.
NOTE:  The holes in the wear plate are symmetrical.
IMPORTANT: During  assembly, lubricate  the  new
seals with petroleum jelly. Also, lubricate machined
surfaces and bearings with clean hydraulic fluid.
13.Install
drive engages the pin.
the geroter drive, making sure the slot in the
14.Lubricate
andinstallnewo-ringinwearplategroove.
1.
Install the quad seal:
15.Install
the gerotor and align the screw holes.
A. Put one of the bearing races and sleeve into the
housing.
16.Lubricate
groove.
and  install  new  o-ring  in  gerotor  ring
andinstallnewo-ringandsealringingero-
B. Together, the housing and bearing race create a
groove into which the quad seal will be installed.
17.Lubricate
tor star groove.
C. Hold the bearing race tightly against the input end
of the housing by pushing on the gerotor end of the
sleeve.
18.Install
the spacer.
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.
E. Remove the sleeve and bearing race.
Lubricate and install the dust seal.
20.Remove
the steering control valve from the vise.
2.
3.
21.Install
the relief valve and plug. Tighten the plug to
150
in-lb (17 N--m).
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)
4.
5.
Fit the retaining ring over the centering springs.
Apply a light  coating of clean hydraulic fluid  to the
Dust Seal
spool and slide it into the sleeve. Be sure the centering
springs fit into the notches in the sleeve.
Quad Seal
6.
7.
Install the pin.
Figure 86
Apply a light coating of  petroleum jelly to the inner
edge of the dust and quad seals.
Groundsmaster 4000--D/4010--D
Page 4 -- 113
Hydraulic System
Product Specification
CategoriesLawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals
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- 340 pages
Document TypeCatalog
LanguageEnglish
Product BrandToro. 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 TypePDF
Publishertoro.com
Wikipedia's PageToro Company
CopyrightAttribution Non-commercial
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