Tronair 02-7813C0100, Operation & Service Manual

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Models: 02-7813C0100, 02-7813C0100-A5, 02-7884C0400
12 Ton Two Stage Hydraulic Axle Jack
02/2021 | Rev. 06 Page | 3
7.0 MAINTENANCE
7.1 GENERAL
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All maintenance and/or repair work should be done using good workmanship practices and proper tools.
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The work area should be clean and free of dirt.
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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.
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It is good practice to replace all O-rings and backup rings once removed. Cut and damaged rings normally result in fluid
leakage.
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At this time flush old hydraulic fluid and dirt from overall system and replenish with new, clean hydraulic fluid.
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No modifications shall be carried out which adversely affect the compliance of the jack with draft standard 2006/42/EC.
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Capacity test (110% of jack’s rated capacity) annually
7.2
SERVICING JACK
To Disassemble Jack
2. Collapse jack rams.
3. Remove vent screw and drain all fluid from reservoir.
4. Remove cap screws (Item 25) surrounding jack cylinder, then remove flange, (Item 23).
5. Lift cylinder from jack base (Item 6). Operate jack hand pump to help remove cylinder.
6. Remove retaining ring (Item 12) and unscrew retaining plug, (Item 15).
7. Separate rams and replace all seals including retaining ring.
To Reassemble Jack
1. Reassemble in reverse order of above.
2. Torque each cap screw (Item 25) to 50-55 ft-lbs.
7.3 REMOVING AND SERVICING PUMP
NOTE: If pump is found faulty, call the factory for replacement or replace seals as follows:
Review Appendix II - HC-2332-01 Hand Pump Parts List during the following procedure:
1. Drain all fluid from reservoir.
2. Remove pump from jack.
3. Remove cotter pin from clevis pin.
4. Remove four (4) socket head cap screws.
5. Remove flanges.
6. Remove tube assembly.
7. Replace O-rings and backup ring. See Pump Parts List for kits available.
8. Re-assemble in reverse order.
9. Torque each
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8
socket head cap screw to 20-25 ft-lbs. Torque each ¼ socket head cap screw 10-12 ft-lbs.
7.4 JACK FUNCTION LOAD TEST
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%.
4. Test annually.
8.0 PROVISION OF SPARES
8.1 SOURCE OF SPARE PARTS
Spare parts may be obtained from the manufacturer:
TRONAIR , Inc. Telephone: (419) 866-6301 or 800-426-6301
1 Air Cargo Pkwy East Fax: (419) 867-0634
Swanton, Ohio 43558 USA E-mail: sales@tronair.com
Website: www.tronair.com
8.2
RECOMMENDED SPARE PARTS LISTS
Reference the following page(s) for Replacement Parts and Kits available.
When ordering Replacement Parts/Kits, please specify Model & Serial Number of your product.