4
SECTION III
OPERATION
3-1.
Control Valves:
3-Way Valve for Single Acting Tools Pushing lever to right directs pump output to
right-hand port, To the tool. Pushing lever to left directs pump output to tank and allows
the tool to open or retract. Center position is neutral/hold. Pump output is directed back
to tank.
3-2.
Place valve in neutral/hold position (as described above) to prevent accidental tool
movement.Start the pump and let the pump idle for a few minutes.
3-3.
Bleeding the hydraulic system air can be removed from the system by fully operating and retracting the hydraulic tool several
times with the pump elevated so its reservoir is higher than the tool. Single-acting tools should be inverted. When the trapped air
is removed from the hydraulic circuit, the tool will advance and retract smoothly. Sluggish tool action is usually the first sign of air
in the system.
3-4.
Press the pendant control switch to activate the tool. Releasing the switch automatically releases the tool.
3-5.
Never operate the pump at 10,000 psi without tool movement for more than 1 minute because this could overheat the oil.
SECTION IV
MAINTENANCE
4-1.
Maintain Oil Level -- check hydraulic oil level every 30 hours of operation. Add SIMPLEX hydraulic oil when necessary. Oil level
should be no more than 1” from top of reservoir plate with tool retracted and motor off.
Completely change oil at least twice a year. The following conditions require more frequent oil changes :
a. Rigorous duty, where oil temperature may reach 140 F .
b. High humidity environment and extreme changes in temperature that can result in condensation inside the reservoir.
c. Dirty or dusty environments may contaminate the oil.
4-2.
Clean Oil Filter screen Once a Year
a. Loosen and remove reservoir plate bolts . Lift pump unit off the reservoir, being careful not to damage the gasket.
b. Remove debris from screen with a tooth brush.
c. Blow dry and inspect, repeat cleaning as needed.
4-3. Keep areas around pump unobstructed to provide good air flow around the motor and pump. Keep the motor and pump as
clean as possible.
A
B
HOLD ADV.
RET.
