Tronair 02-7832-0100 User manual

Model: 02-7832-0100
12 TON AXLE JACK
March 1999 Rev.-02

02-7832-0100
12 TON AXLE JACK
TABLE OF CONTENTS
PAGE
1.0 DESCRIPTION1
2.0 USAGE ................................................................................................................................. 1
3.0 SPECIFICATIONS............................................................................................................... 1
4.0 ASSEMBLY INSTRUCTIONS ........................................................................................... 1
4.1 General Information..................................................................................................... 1
4.2 Pre-Use Checks............................................................................................................ 1
5.0 OPERATING INSTRUCTIONS .......................................................................................... 2
5.1 Jack Instructions........................................................................................................... 2
To Raise Aircraft.......................................................................................................... 2
To Lower Aircraft ........................................................................................................ 2
6.0 MAINTENANCE ................................................................................................................. 3
General.................................................................................................................................. 3
6.1 Servicing Jack .............................................................................................................. 3
6.2 Removing and Servicing Pump ...................................................................................4
6.3 Jack Function Load Test .............................................................................................. 4
7.0 TROUBLE SHOOTING....................................................................................................... 5
PARTS/KITS LISTS & ILLUSTRATION ................................................................................6-8

02-7832-0100
12 TON AXLE JACK
1.0 DESCRIPTION
The Tronair Model 02-7832-0100 Hydraulic Axle Jack incorporates the following quality features:
Steel construction
Single-stage telescoping ram
Quick action mechanical extension
Single speed, manually operated pump
Uses standard MIL-H-5606 hydraulic fluid
Preset relief/release valve
2.0 USAGE
The purpose of this jack is to lift aircraft for maintenance. It has a maximum capacity of 12 tons (10,886 kg).
3.0 SPECIFICATIONS
Vertical capacity: 24,000 lbs. (10,886 kg)
Minimum closed height: 4.00 in. (10.16 cm)
Mechanical extension: 1.56 in. ( 3.96 cm)
Hydraulic extension: 5.44 in. (13.82 cm)
Maximum height obtainable: 11.00 in. (27.94 cm)
Weight: 60.00 lbs. (27.00 kg)
BUNA ‘N’ Seals
4.0 ASSEMBLY INSTRUCTIONS
4.1 GENERAL INFORMATION
This product should be assembled and/or repaired using good workmanship practices and proper
tools.
All replacement parts must be the same as or equal to the original parts supplied.
4.2 PRE-USE CHECKS
Refer to the Jack Illustrated Parts List and Illustration at end of this document to identify and
assure that all parts are present.
Generally check over unit to assure the tightness of all nuts, bolts and screws.
With rams completely collapsed, check hydraulic fluid level; between .50 and .75 inches
from top of reservoir fitting. Replenish with MIL-H-5606 fluid as required.

02-7832-0100
12 TON AXLE JACK
5.0 OPERATING INSTRUCTIONS
The user should be familiar with the following statements prior to using the jack(s).
CAUTION
1. Aircraft jacking adaptors must rest in jack pad.
2. Never put hands between aircraft and jack pad.
3. Always open reservoir vent screw before operating.
5.1 JACK INSTRUCTIONS
TO RAISE AIRCRAFT:
1. Place jack on a hard level surface.
2. Raise jack as close to aircraft jack pad as possible. Screw out the center mechanical
extension for final adjustment.
3. Open reservoir vent screw.
4. Close pump release valve and operate pump.
TO LOWER AIRCRAFT:
1. Loosen pump release valve slightly to slowly lower aircraft.

02-7832-0100
12 TON AXLE JACK
6.0 MAINTENANCE
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 all O-rings and backup rings once removed. Cut and damaged rings
normally result in fluid leakage.
At this time flush old hydraulic fluid and dirt from overall system and replenish with new, clean
hydraulic fluid.
6.1 SERVICING JACK
TO DIS-ASSEMBLE JACK
1. Collapse jack ram.
2. Remove vent screw and drain all fluid from reservoir.
3. Remove cap screws (Item 13) surrounding jack cylinder, then remove retaining ring
(Item 15).
4. Lift cylinder from jack base (Item 16). Operate jack hand pump to help remove cylinder.
5. Remove retaining rings (Items 23, 24 and 25).
6. Separate rams and replace all seals including retaining rings.
TO RE-ASSEMBLE JACK
1. Re-assemble in reverse order of above.
2. Torque each cap screw (Item 13) to 50—55 ft-lbs.
6.0 Maintenance continued on following page.

02-7832-0100
12 TON AXLE JACK
6.0 MAINTENANCE, Continued . . .
6.2 REMOVING AND SERVICING PUMP
NOTE: If pump is found faulty, call the factory for replacement or replace seals as follows:
1. Review Illustrated parts breakdown - Pump.
2. Drain all fluid from reservoir.
3. Remove pump from jack.
4. Remove cotter pin from clevis pin.
5. Remove four (4) socket head cap screws.
6. Remove flanges.
7. Remove tube assembly .
8. Replace O-rings and backup ring. (See Pump Parts List for kits available).
9. Re-assemble in reverse order.
10. Torque each 3/8socket head cap screw to 20-25 ft-lbs. Torque each 1/4socket head cap
screw to 6-71/2ft-lbs.
6.3 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%.

02-7832-0100
12 TON AXLE JACK
7.0 TROUBLE SHOOTING
TROUBLE PROBABLE CAUSE REMEDY
High pressure leaks (at joint, plugs or
tubing)
Re-tighten or repair
Leaky discharge check valve Open release valve, pump
rapidly to dislodge or repair
pump
Leaky ram O-ring packing Replace packing
Leaky release valve Tighten release valve
Leaky pump O-ring packing Repair pump
Lack of oil Refill reservoir, check system for
leaks
Sticking inlet check valve Open release valve, pump
rapidly to dislodge or repair
pump
Closed air vent Open
Ram will not rise or
rises erratically
Air under ram Bleed system
Broken pump release valve Replace release valve
Bent ram Replace suspected ram assembly
Jack will not lower
Closed air vent or release valve Open

02-7832-0100
12 TON AXLE JACK
Parts List
REPLACEMENT PARTS
ITEM PART NUMBER DESCRIPTION QTY
1 Z-2878 Assembly, Vent 1
4 TR-1541 Cylinder, Main 1
5 TR-1540 Cylinder, Stage 1 1
6 TR-1538 Cylinder, Stage 2 1
7 R-1644 Pad, Jack 1
8 TR-1539 Cylinder, Stage 3 1
12 R-1628-02 Extension, Mechanical 1
13 G-1151-109716 Screw, Socket Head Cap 1/2-20 x 3/4" long 4
14 G-1300-13040 Pin, Roll 1/4 " diameter x 1/2" long 2
15 J-2351 Ring, Retaining 1
16 Z-3493-01 Weldment, Base Plate 1
19 N-2205-02-S Plug, Hex Head 1/2 NPT 1
23 G-1398-250 Ring, Internal 1
24 G-1398-200 Ring, Internal 1
25 G-1398-150 Ring, Internal 1
26 R-1716 Plug, End 1
34 N-2066-02-S-B Plug, Hex Head with O-ring 1
35 H-1009-01 Assembly, Handle 1

02-7832-0100
12 TON AXLE JACK
REPLACEMENT KITS
PART NUMBER DESCRIPTION QTY
K-2498 Kit, Pump Replacement; consists of:
- Item 2 Z-3063 Assembly, Hydraulic Hand Pump (7500 psi) 1
- Item 18 HC-2008-109 O-ring, Series 2 2
- Item 21 G-1151-107213 Screw, Hex Socket Head Cap, 3/8-16 x 1-3/8" long 4
K-2607 Kit, Reservoir Replacement; consists of:
- Item 3 Z-3495 Assembly, Reservoir 1
- Item 20 HC-2000-204 O-ring, Series 2 1
- Item 22 G-1151-105210 Screw, Hex Socket Head Cap, 1/4-20 x 1" long 4
K-2606 Kit, Replacement Cylinder Seals; consists of:
- Item 9 HC-1697-20 Wiper, Ring 1
- Item 10 HC-1697-24 Wiper, Ring 1
- Item 11 HC-1697-28 Wiper, Ring 1
- Item 17 HC-2000-236 O-ring, Series 2 1
- Item 27 HC-2000-218 O-ring, Series 2 1
- Item 28 HC-2000-224 O-ring, Series 2 1
- Item 29 HC-2023-224 Ring, Backup 1
- Item 30 HC-2000-228 O-ring, Series 2 1
- Item 31 HC-2023-228 Ring, Backup 1
- Item 32 HC-2000-232 O-ring, Series 2 1
- Item 33 HC-2023-232 Ring, Backup 1

02-7832-0100
12 TON AXLE JACK