Operation - Textron Greenlee 976-22 Manual De Instrucciones

Operation

Skin injection hazard:
High pressure oil easily punctures
skin causing serious injury, gangrene,
or death. If injured, seek medical
help immediately to remove oil.
• Do not use fingers or hands to
check for leaks.
• Depressurize hydraulic system
before servicing or disconnecting
the hose.
Procedure for depressurizing the hydraulic system:
1. Disconnect the pump from the power source.
2. Rotate the release lever to AUTO RELEASE
and allow the ram to retract fully.
3. Disconnect the hose slowly to release any
trapped pressure.
Greenlee / A Textron Company
976-22 and 980-22 Hydraulic Power Pumps
Note: To prevent leakage, this pump was shipped with
an unvented plug installed in the reservoir fill hole. This
plug must be replaced with the attached vented plug
before use. Failure to replace the unvented plug will
cause poor performance.
Note: Starting the motor without a tool attached to
the pump will cause the pump to immediately build an
internal pressure of 690 bar (10,000 psi). If this happens,
shut off the pump and turn the release valve to AUTO
RELEASE to release the hydraulic pressure.
1. Fill with oil provided before attempting to operate the
pump the first time.
2. Move the release valve lever to the
AUTO RELEASE position.
3. The oil level should be within 25 mm (1 inch) of the
top of the reservoir.
If the oil level is too low, refer to "Adding Oil" in the
"Maintenance" section for instructions.
4. Place the release valve lever in the desired position:
• AUTO RELEASE: Ram stops and then retracts
when the hand switch or foot switch is released.
• MANUAL RELEASE: Ram stops but does
not retract when the hand switch or foot switch
is released.
5. Press the hand switch or foot switch to advance
the hydraulic ram. When finished, release the hand
switch or foot switch.
Note: If the release valve lever is in the MANUAL
RELEASE position, the ram will not retract.
To retract the ram, rotate the release valve lever to
the AUTO RELEASE position.
7
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Fill unit with hydraulic oil before
operating pump.
Failure to fill unit with oil will result
in damage to the pump.