ODYSSEY 34
4-6
Pressure Relief Valve Reset
Perform the following procedure to reset the pressure relief valve. Refer to Figure 4-4.
1. Disconnect the hydraulic hose from the main pressure port.
2. Install a 4000 psi gage into the main pressure port in the pump unit.
CAUTION
Do not adjust the pressure relief valve higher than 2300 psi. Overloading may
occur at pressures greater than 2300 psi.
3. Remove the hex cover from the pressure relief valve.
4. While depressing the
ENABLE and UP pushbutton on the lower control box, adjust
the screw until maximum pressure of 2300 psi is obtained.
5. After adjusting the pressure relief valve, replace the hex cover, remove the 4000
psi gage, and reconnect the hydraulic hose to the main pressure port.
6. If a gage is unavailable, place 400 pounds on the platform and adjust the pres-
sure relief valve screw so that the load can just be lifted without bypassing oil
through the pressure relief valve.
MAIN
PRESSURE
PORT
RELIEF VALVE
(LOCATED OPPOSITE
OF EMERGENCY
LOWERING VALVE)
EMERGENCY
LOWERING
VALVE
Figure 4-4. Pressure Relief Valve Adjustment
