ColumbusJACK 179D1100-56 User manual

ColumbusJACK/Regent
2/4/2009
MODEL 179D1100-56
50 TON ALLIGATOR AXLE JACK
Ref: 5007-56
2222 South Third Street
Columbus, Ohio 43207-2402
Phone [phone] FAX [phone]
[email protected]
Operation and Maintenance Manual
with Illustrated Parts List

Columbus JACK/Regent
2222 S. Third St., Columbus, Ohio 43207-2402 USA
MODEL 179D1100-56
50 TON ALLIGATOR AXLE JACK
PAGE -1-
1.0 Introduction
This manual is issued as a basic service and maintenance manual covering the Model 179D1100-56, 50
Ton Alligator Axle Jack manufactured by ColumbusJACK/Regent Corporation, 2222 So. Third St.,
Columbus, Ohio 43207, U.S.A., phone number [phone], FAX [phone].
To derive maximum service, it is recommended that personnel have an understanding of the equipment
before attempting to operate the jack. It is mandatory that the operating procedures herein be followed.
2.0 Specifications
Capacity 50 Tons
Minimum Height 7.0 Inches
Hydraulic Lift 12.0 Inches
Screw Extension 3.5 Inches
Maximum Height 22.5 Inches
Working Pressure 9,690 PSI
Net Weight (Approx.) 450 Lbs
3.0 Features
ColumbusJACK/Regent’s Model 179D1100-56 is a 50 ton axle jack capable of jacking an aircraft using an
air operated pump or a hand pump. A rain hat is provided to protect the cylinder assembly from the envi-
ronment. An “Evac-U-Tract” air assisted ram retraction system is provided to assist in the retraction of the
cylinder rams when the single release valve is opened. An automatic safety valve is provided to bypass
hydraulic oil from either pump back to the reservoir at 110% of rated vertical capacity. The towbar allows
the jack to be towed at a maximum of 5 mph. All ColumbusJACK/Regent aircraft jacks are engineered to
provide optimum operational and maintenance qualities. Our jacks are designed to withstand hard usage
while the weight is kept at a minimum to facilitate ease of handling.
4.0 Safety Information
Make sure all personnel involved with this jack read and understand these instructions before
using.
WARNING: The jack is designed to lift only vertical loads with a maximum weight of 50
tons (100,000 pounds). Do not use jack for lifts exceeding the weight or
design limits. Failure to comply can result in injury or death to personnel
and/or severe damage to the jack and aircraft.

Columbus JACK/Regent
2222 S. Third St., Columbus, Ohio 43207-2402 USA
MODEL 179D1100-56
50 TON ALLIGATOR AXLE JACK
PAGE -2-
5.0 Pre-Operation Procedure
5.1 Perform visual inspection, by checking for fluid leakage.
5.2 Check for loose, damaged or missing parts.
5.3 Check oil level.
6.0 Lifting Procedure
6.1 Verify jack is correctly located per airplane jacking procedures.
6.2 Raise screw extension to mate with airplane axle jacking point, or 3.5 inches maximum.
6.3 Close relief valve.
6.4 Connect air supply.
6.5 Activate the air pump.
7.0 Lowering Procedures
7.1 Slowly open release valve to lower rams.
7.2 When airplane tires are on ground, open release valve completely.
7.3 Activate the hand valve mounted on reservoir to fully retract rams.
7.4 When rams are fully lowered, release the hand valve.
7.5 Lower screw extension fully and disconnect the air supply.
7.6 Remove jack from under airplane.
7.7 Place rain hat over cylinder.
8.0 Relief Valve Setting (Fig. 3)
8.1 Position jack under a jack tester. Fully extend the first and second stages and partially extended
the third stage.
8.2 Remove pin (Item 19).
8.3 Operate air pump and verify that relief valve is set at 50 – 55 tons. Increase pressure setting by
using a screw driver to adjust relief valve screw (Item 8) clockwise. To decrease pressure setting,
adjust relief valve screw counterclockwise.
WARNING: DO NOT EXCEED 55 TONS.
8.4 Re-install pin.

Columbus JACK/Regent
2222 S. Third St., Columbus, Ohio 43207-2402 USA
MODEL 179D1100-56
50 TON ALLIGATOR AXLE JACK
PAGE -3-
8.0 Oil Level
Proper oil level for most efficient operation is 1/2 inch below the filler hole when rams are completely
collapsed. The following hydraulic oils are recommended for use in ColumbusJACK/Regent jacks:
Exxon/Mobil Aero HF (MIL-5606) Shell Tellus 10, 15
Exxon/Mobil DTE-11, -15 Shell Aerofluid 31 (MIL-PRF-83282)
Phillips 66 X/C 5606 Shell Aerofluid 41 (MIL-PRF-5606)
Royco 783 (Anderol) (MIL-PRF-6083) Texaco Regal Oil R & O
(32, 46, 68, 100, 150, 220, 320, 460)
9.0 How to Locate and Remedy Trouble
If operational troubles are encountered, refer to the Trouble Shooting Chart which lists the most commonly
occurring problems and gives information which will facilitate lcoation of trouble source and determination
of remedial action.

Columbus JACK/Regent
2222 S. Third St., Columbus, Ohio 43207-2402 USA
MODEL 179D1100-56
50 TON ALLIGATOR AXLE JACK
PAGE -4-
TROUBLE SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Rams fail to lift when
operated, or jacks fails to lift
rated load.
Incorrect setting of relief valve. Adjust set screw clockwise to
increase system relief
pressure.
Low fluid level Fill to correct fluid level.
Defective outlet check valves. Remove pump assemblies.
Remove and inspect spring
and steel ball and replace if
necessary.
Worn plunger “O” ring or back-
up ring. Remove cotter pin, pins and fulcrum. Remove an inspect
“O” rings and back-up rings
and replace if necessary.
Defective inlet check valve. Remove pump assembly.
Remove cotter pin, pins,
fulcrum, plug and cotter pin.
Turn pump base upside-down
and remove steel ball. Inspect
cotter pin and steel ball and
replace if necessary.
Valve body partially open. Using slotted pump handle,
adjust valve body clockwise
until tight.
Pumps inoperative or difficult
to operate. Vacuum created in reservoir due to clogged muffler. Clean muffler.
Obstructed pump passage. Remove pump assemblies.
Completely disassemble
pumps and blow compressed
air into passages to free
obstruction.
Pistons will not lower. Obstructed pump passage. Remove pump assemblies.
Completely disassemble
pumps and blow compressed
air into passages to free
obstruction.
Rams will not fully elevate. Low fluid level. Inspect and fill to correct level.
Defective ram “O” rings or
back-up rings. Remove first, second and third stage rams. Remove and
inspect O-rings and backup
rings and replace if necessary.
Valve body partially open. Using slotted pump handle,
adjust valve body clockwise
until tight.

Columbus JACK/Regent
2222 S. Third St., Columbus, Ohio 43207-2402 USA
MODEL 179D1100-56
50 TON ALLIGATOR AXLE JACK
PAGE -5-
TROUBLE SHOOTING CHART
TROUBLE PROBABLE CAUSE REMEDY
Rams will not support load. Oil leaks at rams. Remove first, second and third
stage rams. Remove and
inspect O-rings and backup
rings and replace if necessary.
Defective pump assembly ‘O’
rings. Remove pump assemblies. Remove and inpsect hand
pump piston o-rings and
replace if necessary.
Defective outlet check valve. Remove and inspect spring
and steel ball. Replace if
necessary.
Loose pump assembly. Tighten captive socket head
screw.
Rams rise and fall with each
stroke. Valve body partially open. Using slotted pump handle, adjust valve body clockwise
until tight.
Incorrect setting of relief valve. Adjust set screw clockwise to
increase system relief
pressure.
Defective outlet check valve. Remove pump assemblies.
Remove and inspect spring
and steel ball. Replace if
necessary.

Columbus JACK/Regent
2222 S. Third St., Columbus, Ohio 43207-2402 USA
Model 179D1100-56
50 Ton Alligator Axle Jack
Page 1 of 5
Figure 1
FIG. & UNITS
ITEM PART NUMBER DESCRIPTION PER
NO. ASS'Y
1- 179D1100-56 50 Ton Alligator Axle Jack .................... Ref.
-1 179C1200 Lift Assembly ............................................. 1
-2 179C1400-D Frame Weldment ....................................... 1
-3 200-6UV Swivel Caster ............................................. 2
-4 349D1014 Spring Assembly ........................................ 1
-5 117C1406 Towbar ....................................................... 1
-6 469B1211 Handle ........................................................1
-7 566-06 Pump Assembly ......................................... 1
-8 566-02 Pump Assembly ......................................... 1
-9 SST-10000 3/8” OD x .065 Wall Stainless Tube ........................................ A/R
-10 457-00602 Male Connector ......................................... 1
-11 179-1832 Hydraulic Pump ......................................... 1
-12 371-26440 Hex Head Cap Screw ................................ 1
-13 371-20180 Hex Head Cap Screw ................................ 4
-14 371-16070 Hex Head Cap Screw................................. 8
-15 377-16060 Sch Head Cap Screw................................. 4
-16 346-10032 Lock Washer .............................................. 4
-17 346-10024 Lock Washer ............................................ 12
-18 488-00002 Hex Socket Plug 1/8” ................................. 1
-19 488-00004 Hex Socket Plug 1/4” ................................. 1
-20 MS51922-57 Self Locking Nut ......................................... 1
-21 345-11048 Flat Washer ............................................... 2
-22 160B604 Operating Instruction Plate ........................ 1
-23 372-14090 Hex Head Cap Screw ................................ 4
-24 346-10020 Lock Washer .............................................. 4
-25 456-00604 90 Degree Male Elbow............................... 1
-26 371-12100 Hex Head Cap Screw ................................ 1
-27 333-41200 Hex Nut ...................................................... 1
-28 346-10016 Lock Washer .............................................. 1
-29 179C2002 Cover Assembly ......................................... 1
-30 179-2000 Access Plate Weldment ............................. 1
-31 179-2004 Gasket ....................................................... 1
-32 456-10602-A Male Elbow ................................................ 1
-33 450A5961 Hose ....................................................... A/R
-34 488-00008 Pipe Plug ................................................... 1
-35 450A3202 Valve .......................................................... 1
-36 SC-284 Vacuum Pump ........................................... 1
-37 450A5960 Muffler ........................................................ 1
-38 456-10606-A Male Elbow ................................................ 1
-39 485-40404 Male Run Tee ............................................ 1
-40 484-00404 Female Pipe Elbow .................................... 1

Columbus JACK/Regent
2222 S. Third St., Columbus, Ohio 43207-2402 USA
Model 179D1100-56
50 Ton Alligator Axle Jack
Page 2 of 5
Figure 1
FIG. & UNITS
ITEM PART NUMBER DESCRIPTION PER
NO. ASS'Y
1- 179D1100-56 (Continued) 50 Ton Alligator Axle Jack .................... Ref.
-41 456-10406-A Male Elbow ................................................ 1
-42 372-10060 Hex Head Cap Screw ................................ 8
-43 346-10010 Lock Washer .............................................. 8
-44 SST-13849 Stainless Tube 304 .................................. A/R
-45 Not Used
-46 483-10604 Pipe Nipple ................................................ 1
-47 450A5963 Male Connector ......................................... 2
-48 457-10602 Male Connector ......................................... 1
-49 485-50604 Pipe Thread Reducer ................................ 1

Columbus JACK/Regent
2222 S. Third St., Columbus, Ohio 43207-2402 USA
Model 179D1100-56
50 Ton Alligator Axle Jack
Page 3 of 5
Figure 1

Columbus JACK/Regent
2222 S. Third St., Columbus, Ohio 43207-2402 USA
Model 179D1100-56
50 Ton Alligator Axle Jack
Page 4 of 5
Figure 1