How To Prime The Hydrostatic Transmission Pump - Genie GTH-1544 Service And Repair Manual

Section 3 • Repair Procedures
HYDRAULIC PUMPS
How to Prime the Hydrostatic
Transmission Pump
Bodily injury hazard. This
WARNING
procedure requires specifi c
repair skills, lifting equipment
and a suitable workshop.
Attempting this procedure
without these skills and tools
could result in death or serious
injury and signifi cant component
damage. Dealer service is
strongly recommended.
1 Connect a 0 to 870 psi / 0 to 60 bar pressure
gauge to port TP3 (hydrostatic transmission
boost pressure test port).
2 Start the engine. Run at low idle for 5 seconds.
Shut the engine off and wait for 15 seconds.
3 Start the engine. Run at low idle for 10
seconds. Shut the engine off and wait for 15
seconds.
4 Note: Repeat step 4 until the pressure gauge
connected to TP3 reads 290 psi / 20 bar or
greater.
5 Apply the brake pedal and start the engine.
Shift the transmission into forward and
disengage the emergency brake.
6 Release the brake pedal and slowly increase
the engine rpm until the machine starts to
move. Apply the brake.
3-38
7 Shift the transmission into reverse. Release
the brake pedal and slowly increase the engine
rpm until the machine starts to move. Apply the
brake.
8 Engage the emergency brake and turn the
engine off. Check for hydraulic leaks.
GTH-1544
September 2016
Part No. 1272857