Greensmaster 3300/3400 Hydraulic SystemPage 5 -- 77
RearWheelMotor (Optional 3WD)Removal (Fig.53)
1. Parkmachineonalevelsurface,engagetheparking
brake, lower the cutting units and stop the engine. Re-
move key from the ignition switch.
CAUTION
Before continuing further, read and become fa-
miliar with General Precautions for Removing
and Installing Hydraulic System Components in
this section.
2. Loosen,butdonotremove,rearwheellugnuts(item
5) and locknut (item 4). Loosenlocknut at leasttwo (2)
turns.
3. Chockbothfrontwheelstopreventthemachinefrom
moving. Lift rear wheel off the ground using a jack and
placeappropriatejackstandsbeneaththeframetosup-
port the machine.
4. Remove lug nuts and rear wheel assembly.
IMPORTANT: DO NOT hit wheel hub, wheel hub
puller or wheel motor with a hammer during wheel
hub removal or installation. Hammering may cause
damage to the wheel motor.
5. Usewheelhubpuller(seeSpecialToolsinthischap-
ter) to loosen wheel hub from rear wheel motor.
6. Removelocknutandwheelhubfromrearwheelmo-
tor. Locate and retrieve woodruff key (item 23).
7. Thoroughlycleanhydraulic tubeendsandfittingson
rear wheel motor to prevent hydraulic system contami-
nation.
8. Label hydraulic connections at rear wheel motor for
assembly purposes.
9. Disconnect hydraulic tubes from fittings on wheel
motor. Allow lines to drain into a suitable container.
10.Putcapsorplugs ondisconnectedtubes andfittings
to prevent contamination.
11.Support wheel motor to prevent it from falling. Re-
move two ( 2) cap screws (item 7), two (2) socket head
screws (item 6) and two(2)flangenuts (item 8) that se-
curewheelmotortorearfork.Removerearwheelmotor
and motor plate (item 2) from machine.
12.If fitting removal from wheel motor is necessary,
mark fitting orientation to allow correct assembly. Re-
movehydraulicfittingsandO--ringsfrommotor.Discard
removed O-- rings.
Rear Wheel Motor (Optional 3WD) Installation (Fig.
53)
1. If fittingswereremoved fromrearwheel motor,lubri-
cate and place new O--rings onto motor fittings. Install
fittings into motor openings making sure that fitting ori-
entationisasnotedduringremoval.Tightenfittings(see
Hydraulic Fitting Installation in the General Information
section of this chapter).
2. Place motor plate (item 2) on rear wheel motor and
position motor to rear fork. Secure wheel motor to rear
forkwithtwo(2)capscrews(item7),two(2)sockethead
screws (item 6)andtwo (2) flange nuts( item 8). Torque
fasteners to 75 ft--lb (101 N--m).
3. Remove caps from disconnected hydraulic tubes.
4. LubricateandpositionnewO--ringstofittingsonrear
wheelmotor. Uselabelsplaced duringthe removalpro-
cesstoproperlyinstallhydraulictubestowheelmotorfit-
tings (see Hydraulic Hose and Tube Installation in the
General Information section of this chapter).
5. Thoroughly clean wheel motor shaft and wheel hub
taper.
6. Install woodruff key into the wheel motor shaft key-
slot. Align wheel hub with woodruff key and slide wheel
hub onto motor shaft. Secure hub with lock nut.
7. Installr earwheeltomachineandsecurewithfour(4)
lug nuts.
Failure to maintain proper wheel lug nut and
wheel hub lock nut torque could result in failure
orlossofwheeland may resultin personalinjury.
WARNING
8. Lower machine to ground. Torque lock nut from 250
to 400 ft--lb (339 to 540 N--m) and wheel lug nuts from
65 to 85 ft--lb (89 to 115 N--m).
9. Checkoil levelinhydraulic reservoirandaddcorrect
oil if necessary.
10.Follow Hydraulic System Start--up procedures (see
Hydraulic System Start--up in this section).
Hydraulic
System
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