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5 Ton (4.5 Metric Ton) Single Stage Jack
Models: 02-7856-0100 (Standard)
02A7856-0100 (with Air Pump Option)
02B7856-0100 (with Air Pump Option & Spring Loaded Casters)
02C7856-0100 (with Spring Loaded Casters)
11/2004 - AA - Rev. 04
- 9 -
9.0 MAINTENANCE
(continued)
9.2 MAINTENANCE
SCHEDULE
Check Fluid Level......................................................................................................... Each Use
Lubricate Casters ..........................................................................................................3 Months
Cleaning .................................................................................................Annually Or As Needed
NOTE:
Wipe with soft cloth only, do no pressure wash or spray water directly at ram seal.
9.2.1 Storage/Low
Usage:
If jack is unused for 90 days, raise ram to full hydraulic extension, spray ram with
DoALL RPM, LPS or equivalent water repellant, BUNA N compatible lubricant.
9.3 SERVICING
JACK
To Disassemble Jack:
1.
Remove mounting plate (Item 37) by unscrewing three socket head cap screws (Item 36).
2.
Raise ram assembly (Item 39) to the point where it can be lifted from the jack cylinder.
To Re-assemble Jack:
1.
Re-assemble in reverse order of above.
NOTES:
⎯
Dispose of hydraulic fluid per local and federal regulations.
⎯
To minimize air entrapment under the ram, raise the oil level in the cylinder to chamfer of
the cylinder prior to ram insertion.
⎯
Torque socket head cap screws (Item 36) to 25 ft-lbs (34 Nm)
9.4
REMOVING AND SERVICING PUMP
NOTE:
If pump is found faulty, call the factory for replacement or replace seals as follows:
1.
Review Appendix III HC-1753 Hand Pump Parts List.
2.
Clamp suction (push on) hose and remove hose from pump.
3.
Uncouple fitting of hydraulic hoses from pump.
4.
Remove pump from jack.
5.
Remove cotter pin from clevis pin.
6.
Remove four (4) socket head cap screws.
7.
Remove flanges.
8.
Remove tube assembly.
9.
Replace O-rings and backup ring. (See Appendix III for kits available.)
10.
Re-assemble in reverse order.
9.5
JACK FUNCTION LOAD TEST
NOTE:
If function load testing is required:
1.
Take all necessary precautions to prevent injury.
2.
Always jack against a load and never against the jack itself.
3.
Do not exceed a test load equal to the jack rated capacity plus 10%.
9.0 Maintenance continued on following page.
Summary of Contents for 02-7856-0100
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Page 25: ...APPENDIX I Hydraulic Schematic...
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Page 29: ...APPENDIX II Haskel Air Pump Technical Specifications Performance Data Drawing 28550...
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Page 35: ...APPENDIX III HC 1753 Hand Pump Parts List...
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Page 43: ...APPENDIX IV Material Safety Data Sheet MIL H 5606 Hydraulic Fluid...
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