Hagie 204, Operator'S Manual

Page: 49 / 141

NOTE:
The loop flushing valve has been factory set. DO
NOT adjust. Damage to the system may result if
adjustment is made without contacting the Hagie
Customer Support Department.
V. OPERATING INFORMATION
Multi-Function Valves
Each Series 90 pump is equipped with two multi-
function valves (fig. 5.8). These valves incorporate the
system check valve, the pressure limiter valve, the high
pressure relief valve, and the bypass valve.
When the pre-set pressure is reached, the pressure
limiter system acts to rapidly de-stroke the pump in order to
limit the system pressure.
Charge Pressure
To monitor the closed loop system (hydrostatic pump),
install a 500 PSI pressure gauge at the charge pressure
port (see fig. 5.9). Start the engine and open the throttle to
full RPM. The charge pressure should be between 348 and
365 PSI. If it is below the required pressure, contact the
Hagie Customer Support Department.
Loop Flushing Valve
The hydrostatic pump is equipped with a loop flushing
valve (fig. 5.10). It is used to remove fluid from the
hydrostatic system for cooling and removal of
contamination.
HYDROSTATIC SYSTEM CONTINUED
HYDROSTATIC SYSTEM CONTINUED
FIG 5.8
x
FIG 5.9
FIG 5.10