Groundsmaster 4000--D/4010--D Hydraulic SystemPage 4 -- 147
Removal (Fig. 114)
1. Park machine on a level surface, lower cutting
decks, stop engine, apply parking brake and remove
key from the ignition switch.
2. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
3. Topreventcontaminationofhydraulicsystemduring
lift cylinder removal, thoroughly clean exterior of cylin-
der and fittings.
WARNING
Makesure thatfront cuttingdeck isfully lowered
before loosening hydraulic lines from front deck
lift cylinders. If deck is not fully lowered as hy-
draulic lines are loosened, deck may drop unex-
pectedly.
NOTE: To ease installation, tag the hydraulic hoses to
show their correct position on the lift cylinder.
4. Disconnect hydraulic hoses from lift cylinder.
5. Removelocknut,two(2)flatwashersandcapscrew
thatsecure the pin assembly totheliftarm. Remove pin
assembly from lift arm and cylinder shaft clevis which
will free lift cylinder from lift arm.
6. Remove one cotter pin from pivot pin that secures
upper end of lift cylinder to machine. Pull pivot pin from
frame and cylinder barrel clevis.
7. Remove lift cylinder from machine.
8. Ifhydraulic fittings are to be removedfromliftcylind-
er,markfittingorientationtoallowcorrectassembly.Re-
move fittings from cylinder and discard O--rings.
Installation (Fig. 114)
1. If fittings were removed from lift cylinder, lubricate
and place new O--rings onto fittings. Install fittings into
port openings using marks made during the removal
process to properly orientate fittings. Tighten fittings
(see Hydraulic Fitting Installation in the General Infor-
mation section of this chapter).
2. Positioncylinderbarrelclevistoframeandinsertpiv-
ot pin into frame and clevis. Secure pivot pin with cotter
pin.
3. Insert pin assembly through lift arm and cylinder
shaftclevis.Securepintoliftarmwithcapscrew,two(2)
flat washers and lock nut.
4. Attach hydraulic hoses to lift cylinder (see Hydraulic
Hose and Tube Installation in the General Information
section of this chapter).
5. Fill reservoir with hydraulic fluid as required.
6. After assembly is completed, operate lift cylinder to
verifythathydraulichoses andfittingsarenotcontacted
by anything.
Hydraulic
System
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