4-30
GTH-2506 GTH-3007
Part No. 57.4400.9220GT
August 2018
Section 4 • Repair Procedures
HYDRAULIC PUMPS
How to Install the Hydrostatic
Transmission Pump
WARNING
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 fitting and/or hose end must be 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 to the touch.
1 Open the engine compartment.
2 Remove the cover that is under engine.
3 Place a suitable support for the pump to install
it from the bottom.
4 Install the hydrostatic transmission pump on
the engine.
5 Remove the fitting caps from the hydrostatic
transmission pump.
6 Remove the hoses caps.
7 Connect the hoses to the pump.
WARNING
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.
8 Connect the harness to the transmission pump.
9 Install the boom and steering function pump on
the hydrostatic transmission pump.
10 Start the engine and prime the pump. See 6-2,
How to Prime the Hydrostatic Transmission
Pump
.
11 Inspect for leaks.
12 Adjust the pump pressure. See 6-2,
How to test
the Hydrostatic Transmission Pump
.