Tronair 02A7913C0100, Operation & Service Manual

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12/03/2020 | Rev. 03 Page | 8
10.0 MAINTENANCE
10.1 GENERAL
•
All maintenance and/or repair work should be done using good workmanship practices and proper tools.
•
The work area should be clean and free of dirt.
•
When O-rings and backup rings are removed, every effort should be made to avoid the contact of tools with the critical
surfaces of parts. Surface deformities could cause degradation of seals and failure.
•
It is good practice to replace both O-rings and back-up rings once removed. Cut and damaged O-rings normally result in
fluid leakage.
•
If cylinder bore is found to be rusty, it may be honed to a maximum diameter of .002 in (.05 mm) over on diameter and a
surface finish of 16 micro inches. If pitting in the bore cannot be removed by this process, the jack cylinder must be
replaced before the jack can be returned to service.
•
At this time, flush old hydraulic fluid and dirt from overall system and replenish with new, clean hydraulic fluid.
•
When refilling the hydraulic system the characteristics of the hydraulic fluid used in the jack and the level of the hydraulic
fluid as it is noted on the jack shall be observed.
•
Jacks shall be maintained an
d repaired in accordance with the manufacturer’s instructions. Such maintenance and repair
shall be carried out by qualified persons.
•
No modifications shall be carried out which adversely affect the compliance of the jack with draft standard 2006/42/EC.
10.2
MAINTENANCE SCHEDULE
Check Fluid Level ....................................................................... Each Use
Lubricate Casters ....................................................................... 3 Months
Cleaning ..................................................................................... Annually Or As Needed
Capacity Test (105%-
110% of jack’s rated capacity) ................. Annually
NOTE: Wipe with soft cloth only, do no pressure wash or spray water directly at ram seal.
10.2.1
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.
10.3
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-1961 Hand Pump Parts List.
2. Clamp suction (push on) hose and remove hose from pump.
3. Uncouple fittings 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.
10.4
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%.
CAUTION!
Always jack against a load and never against the jack itself.
10.5
PNEUMATIC PUMP
See Appendix II Haskel Air Pump Manufacturer Data for complete parts list and repair information.