Genie GTH-1048 Service Manual page 105

Section 4 • Repair Procedures
HYDRAULIC PUMP
How to Remove the Function
Pump
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting this
procedure without these skills and
tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
Note: When removing a hose assembly or fitting,
the O-ring on the fitting and/or hose end must be
replaced and then torqued to specification during
installation. Refer to Section 2, Hydraulic Hose and
Fitting Torque Specifications.
Note: Perform this procedure with the engine off
and cool.
1 Open the access door above the hydraulic tank.
2 Disconnect the battery from the machine.
Electrocution hazard. Contact with
electrically charged circuits could
result in death or serious injury.
Remove all rings, watches and
other jewelry.
3 Tag and disconnect the wire harness from the
pump.
4 Tag and disconnect the case drain hose at the
top of the pump. Cap the fitting on the pump.
Note: Placing the open end of the case drain hose
below the hydraulic oil level in the hydraulic tank
will result in excessive hydraulic fluid leaking from
the hose. Do not lower the open end of the case
drain hose to below the fluid level of the hydraulic
tank until the hose is plugged.
4 - 36
5 Tag, disconnect and plug the large hydraulic
pump supply hose at the pump. Cap the fitting
on the pump.
Note: Placing the open end of the pump supply
hose below the fluid level in the hydraulic tank will
result in excessive hydraulic fluid leaking from the
hose. Do not lower the open end of the pump
supply hose to below the fluid level of the hydraulic
tank until the hose is plugged.
6 Tag, disconnect and plug the high pressure
hose at the pump. Cap the fitting on the pump.
7 Tag and disconnect the transmission cooler
hoses at the transmission cooler. Cap the
fittings.
8 Remove the fasteners securing the pump to the
transmission. Remove the pump from the
machine.
GTH-1048 • GTH-1056
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to squirt
or spray.
Burn hazard. Contact with hot
engine components may cause
severe burns.
Part No. 123701
March 2015