Tronair 02-7802C0111, Operation & Service Manual

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Model: 02-7802C0111 & 02A7802C0111 (with Air Pump)
12 Ton (10.88 Metric Ton) Single Stage Jack
04/2008 | Rev. 01 Page | 9
9.0 MAINTENANCE (continued)
9.3 SERVICING JACK
To Disassemble Jack
1. Remove mounting plate (Item 8) by unscrewing four socket head cap screws (Item 7).
2. Raise ram assembly (Item 10) 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 7) to 40 ft-lbs (54 Nm)
9.4
REMOVING AND SERVICING PUMP
NOTE: If pump is found faulty, call the factory for replacement or replace seals as follows:
2. Review Appendix III: HC-1961 Hand Pump Parts List.
3. Clamp suction (push on) hose and remove hose from pump.
4. Uncouple fitting of hydraulic hoses from pump.
5. Remove pump from jack.
6. Remove cotter pin from clevis pin.
7. Remove four (4) socket head cap screws.
8. Remove flanges.
9. Remove tube assembly.
10. Replace O-rings and backup ring. (See Appendix III for kits available.)
11. 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%.
9.6
PNEUMATIC PUMP
See Appendix II Haskel Air Pump Manufacturer Data for complete parts list and repair information.