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Groundsmaster 4000--DHydraulic System Page 4 -- 110
4. Install the pressure seals, flat side outward, into the
grooves in the wear plates. Follow by carefully placing
the backup gaskets, flat side outward, between the
pressure seals and the grooves in the wear plate.
5. Applyalight coating ofpetroleum jelly to theexposed
side of the front flange.
6. Lubricatethe drivegearshaft withcleanhydraulic oil.
Insert the drive end of the drive shaft through the wear
platewiththe pressure sealside down andtheopen side
of the pressure seal pointing to the inlet side of the mo-
tor. Carefully install shaft into front flange.
7. Lubricate the idler gear shaft with clean hydraulic oil.
Install idler gear shaft into the remaining position in the
front wear plate. Apply a light coating of clean hydraulic
oil to gear faces.
8. Install rear wear plate with pressure seal side up and
open side of the pressure seal pointing to the inlet side
of the motor.
9. Apply a light coating of petroleum jelly to new O--
rings and O--ring grooves in the body. Install new O--
rings to the body.
10.Install locating dowels in body. Align marker line on
the body and front flange.
IMPORTANT: Do not dislodge seals during installa-
tion.
11.Gently slide the body onto the assembly. Firm hand
pressure should be sufficient to engage the dowels.
12.Install the four(4)capscrews with washers and hand
tighten.
IMPORTANT: Prevent damage when clamping the
fan motor into a vise; clamp on the front flange only.
Also, use a vise with soft jaws.
13.Place front flange of the motor into a vise with soft
jaws and alternately torque the cap screws 33 ft--lb (45
N--m).
14.Remove motor from vise.
15.Place a small amountofclean hydraulic oil intheinlet
ofthemotor androtatethe driveshaftaway from theinlet
one revolution. If any binding is noted, disassemble the
motor and check for assembly problems.