Graco 313998S User Manual Page 36

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Repair
36 313998S
Install Hydraulic Power Pack
This procedure assumes the Hydraulic Power Pack has
been removed from the machine and is assembled
except for the Motor Control Module.
See FIG. 8 on page 32.
1. Run a rope through the three eye-bolts and between
the Motor and the Motor Control Module. Secure to
a hydraulic lift.
2. Lift the Hydraulic Power Pack and place onto the
electronic enclosure.
3. Align the holes with the tank then install finger-tight
the four bolts (604) and washers (603) securing the
tank to the electrical enclosure. Torque to 10 ft-lb
(14 N•m).
4. Remove rope and lift.
5. Remove eye-bolts. Install original bolts (746) into
fluid housing (703). See FIG. 10.
6. Perform Install PowerHouse Pumpline procedure,
see page 30.
7. Perform Install Motor Control Module procedure,
see page 35.
8. Connect heat exchanger inlet hose and fitting to
elbow fitting (617). Connect heat exchanger outlet
hose and fitting to elbow fitting located on rear right
face of tank. See Power Pack Module on page 52.
Replace Tank Gasket, Tank
See FIG. 8 on page 32.
1. Perform Remove Hydraulic Power Pack proce-
dure, see page 35.
2. Remove hex head cap screws (722) secur ing
hydraulic housing (703) to tank (720). Carefully
remove motor (701) and hydraulic housing assem-
bly from tank.
3. Remove tank gasket. If tank is damaged, replace
tank.
4. Install thrust washers (721) onto hex head cap
screws (022). Apply pipe sealant to threads of
screws. Align tank gasket (719), hydraulic housing,
and tank (720) then install screws. Torque to
15 ft-lb (20 N•m).
5. Perform Install Hydraulic Power Pack procedure,
see page 36.
Remove Motor
See FIG. 8 on page 32.
1. Perform Remove Hydraulic Power Pack proce-
dure, see page 35.
2. Remove four hex head cap screws (722) securing
hydraulic housing (703) and motor (701) to
tank (020). Carefully remove motor and hydraulic
housing assembly from tank.
3. Remove four hex head cap screws (727) connecting
mounting bracket (726) to motor.
4. Remove four socket head cap screws (704) secur-
ing motor to hydraulic housing. Carefully remove
motor from hydraulic housing.
NOTICE
If any debr is falls into the hydraulic tank, the debris
must be removed or machine damage will result.
NOTICE
Do not over-torque any item that threads into the
hydraulic tank. This will strip the threads and
require tank replacement.
NOTICE
Do not over-torque any item that threads into the
hydraulic tank. This will strip the threads and
require tank replacement.
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