2-15
GEAR PUMP REPLACEMENT 2.9
Start the gear pump removal procedure by removing any
attachment, raising the boom arms and engaging the
boom support pins. Shut off the engine.
1 Remove the seat and hydrostatic shield.
2 Attach a vacuum system to the hydraulic oil reservoir
filler location. (fig. C1689) Or drain the oil reservoir. Seal
the threads on the drain plug, if removed, with teflon tape
or a liquid form of pipe sealant before installing.
3 Disconnect the hydraulic hoses from the gear pump.
(fig. C2353a) Remove the pump fittings. Cap all open
hoses to prevent contamination. After capping ends you
may unhook vacuum system from oil reservoir.
4 Remove the 2 bolts holding the gear pump to the
hydrostatic tandem section. (fig. C2353b) Remove the
gear pump.
5 Replace gear pump in reverse order.
6 If the hydraulic system has been contaminated by
pump or other failure you must follow the cleaning proce-
dure outlined in section 2.7.
7 Start the engine and check for leaks. Never use your
hands to find leaks.
8 Check the fluid level lin the hydraulic oil reservoir
and replenish as required. (fig. C2354).
C1689
C2353a
C2353b
C2354
Hoses
Bolts
Vacuum
Oil level
Reservoir filler spout
WARNING
IMPORTANT
To prevent personal injury do not work under the
boom arms without the boom supports engaged.
If gear pump replacement is being done because of
failure, the hydraulic system and oil should be
checked for contamination.
WARNING
Use caution when dealing with hydraulic fluid
under pressure. Escaping fluid under pressure can
penetrate the skin and cause serious injury.
IMPORTANT
When making repairs to the hydraulic system,
keep the work area and parts clean. Use caps and
plugs on all open lines and ports.
To Next Page
Loading...
Need help?
General
