Ega Master 56890 Manuel D'instructions page 43

The following conditions require more frequent oil changes.
• Rigorous duty, where oil temperature may reach 150˚ F.
• High humidity environment and extreme changes in temperature that can result in
condensation inside the reservoir.
• Dirty or dusty environments that may contaminate the oil.
• Frequent connection and disconnection of hydraulic hoses and components.
CLEAN OIL INTAKE SCREEN ONCE A YEAR
Loosen and remove reservoir plate bolts. Lift pump unit off the reservoir, being careful not to
damage the gasket.
Applies to 1.5, 2, 2.5 gallon reservoirs:
Remove the five allen socket head cap screws, securing the screen to the 1st stage gear
pump. Care should be taken not to remove the center plate and gears. Remove and clean with
nonflammable solvent, blow dry clean. Reinstall in reverse order and torque bolts to 75 inch
pounds. Keep the motor and pump as clean as possible.
Applies to the 5 and 10 gallon reservoirs:
Unscrew screen from bottom of pump unit and clean with nonflammable solvent. Blow dry
and reassemble. Keep areas around pump unobstructed to provide good air flow around the
motor and pump. Keep the motor and pump as clean as possible.
FLUSH THE PUMP
If you suspect your pump has been contaminated or discover sludge or other deposits
on internal components, you should thoroughly flush the pump. Remove the old oil from the
reservoir, then thoroughly clean the reservoir and refill with a clean, nonflammable flushing oil.
Reassemble the pump and motor to the reservoir.
Run the pump in no load condition for 1 or 2 minutes maximum. Unplug the pump and
remove the motor and pump assembly again. Now drain the flushing oil and re-clean the inside
of the reservoir. (Make sure flushing fluid is also drained from pump assembly). Reassemble the
pump and refill the reservoir with The manufacturer hydraulic oil and reassemble the pump.
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