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

Disassembly (Fig. 88)
Pump oil out of cylinder into a drain pan by SLOWLY
moving rod and piston in and out of cylinder bore. Plug
ports and clean outside of cylinder.
Assembly (Fig. 88)
1.
1.  Use a complete repair kit when rebuilding the cylin-
der. Put a coating of clean hydraulic oil on all new seals
and O--rings.
IMPORTANT: To  prevent  damage when  clamping
cylinder in a vise, clamp only on pivotal ends. Use
of a vise with soft jaws is recommended.
2.  InstallnewO--ringsandsealstothepistonandhead.
3.
Lubricate shaft with clean  hydraulic oil. Slide head
onto shaft.
2.
up slightly. Do not close vise so firmly that cylinder tube
could become distorted.
Mountcylinder inaviseso  rodend  ofcylinder istilted
4.
from 45 to 55 ft--lb (62 to 74 N--m).
Install and tighten  piston onto shaft. Torque piston
5.
install set screws into piston. Torque set screws from 5
to 7 ft--lb (7 to 9 N--m).
Apply Loctite #242 (or equivalent) to set screws and
3.
Loosen head from tube:
A.  Use a spanner wrench to rotate head clockwise
untiltheedgeoftheretainingringappearsinthetube
opening.
6.
parts to ease assembly.
Put a  coating of clean hydraulic  oil on all  cylinder
B.  Insert a screwdriver under the  beveled edge of
the retaining ring to start the  retaining ring through
the opening.
7.
Slide rod assembly into cylinder tube.
IMPORTANT: To  prevent  damage when  clamping
cylinder in a vise, clamp only on pivotal ends. Use
of a vise with soft jaws is recommended.
C. Rotatetheheadcounter--clockwisetoremovere-
taining ring from tube and head.
8.
cure head in barrel:
Mount steering cylinder in a vise with soft jaws. Se-
4.
ing motion  to carefully  extract piston,  piston rod and
head from cylinder tube.
Grasp end of piston rod and use a twisting and pull-
A.  Align retaining ring hole in the head with the ac-
cess slot in the tube.
IMPORTANT: Do not clamp vise jaws against piston
rod surface; the piston rod will be damaged.
B.  Insert the retaining ring hook into the hole and ro-
tate head clockwise until  the retaining ring is com-
pletely pulled  into the  tube and the  ring ends  are
covered.
5.
bly into vise with soft jaws.
Securely mount piston, piston rod and head assem-
6.
Remove piston frompiston rodand thenslide headfrom
rod.
Remove set screws that secure piston to piston rod.
C. Apply silicone sealer to tube access slot.
7.
Remove  and discard  all  seals and  O--rings  from
head and piston.
CAUTION
Use eye protection such as goggles when using
compressed air to dry cylinder components.
8.
Wash parts  in clean  solvent. Dry  parts with  com-
pressed air. Do not wipe parts dry with paper towels or
cloth. Lint in a hydraulic system will cause damage.
9.
Carefully inspect internal surface of barrel for dam-
age (deep scratches, out--of--round, etc.). Replace en-
tire cylinder if barrel is damaged. Inspect rod and piston
for evidence of excessive scoring, pitting or wear.  Re-
place any damaged parts.
Groundsmaster 4000--D/4010--D
Page 4 -- 117
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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