Greenlee / A Textron Company
8
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
960 PS Series Hydraulic Power Pumps
Operation
Do not use this pump in a hazardous
environment. Hazards include
flammable liquids, gases, or other
materials. Using this pump in a
hazardous environment can result in
a fire or explosion.
Failure to observe these warnings
will result in severe injury or death.
Wear eye protection when operating
or servicing this tool.
Failure to wear eye protection can
result in serious eye injury from
flying debris or hydraulic oil.
Procedure for depressurizing the hydraulic system:
1.
Disconnect the pump from the power source.
2.
Rotate the release lever clockwise.
3.
Disconnect the hose slowly to release any
trapped pressure.
Changing Accessories
Before changing the hydraulic accessory that is
connected to the pump, follow this procedure for
depressurizing the system.
Note: Starting the motor without a tool attached to the
pump will cause the pump to immediately build an
internal pressure of 689.5 bar (10,000 psi).
If this happens, shut off the pump and turn the valve
lever clockwise to release the hydraulic pressure.
1.
Move release valve lever clockwise.
2.
Check reservoir oil level. The oil level should be
within 13 mm (1/2") of the top of the reservoir.
If oil level is too low, refer to “Adding Oil” under
“Maintenance and Service” in this manual.
3.
Turn the dipstick two turns counterclockwise.
Note: Operating the pump without loosening the
dipstick will result in poor pump performance.
4.
Connect the pump to an appropriate power supply.
5.
Start motor and allow pump to idle for a few minutes.
This will allow the hydraulic fluid to work through the
system and prime the pump.
6.
Stop the motor. Turn the lever counterclockwise.
7.
Start the motor to advance the hydraulic ram. When
finished, stop the motor. Turn the lever clockwise to
release the pressure.
Note: Starting the pump while the lever is in the
clockwise position may cause the ram to extend.
Turning the lever counterclockwise while the pump is
running may release the pressure.
8.
During periods of heavy use, occasionally stop the
pump and check the oil temperature. The recom-
mended operating temperature is 38
°
C to 50
°
C
(100
°
F to 125
°
F).
9.
Tighten the dipstick.
