JET AHJ-12 Operating Instructions and Parts Manual

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Operating Instructions and Parts Manual

Air/Hydraulic Bottle Jack

Models AH J- 12 an d AH J- 20

WALTER M EIE R (Manufacturin g) Inc.

Warranty and Service

Walter Meier (Manufacturing) Inc., warrants every product it sells. If one of our tools needs service or repair, one of our Authorized Service Centers located throughout the United States can give you quick service. In most cases, any of these Walter Meier Authorized Service Centers can authorize warranty repair, assist you in obtaining parts, or

perform routine maintenance and major repair on your JET your area call 1-800-274-6848.

MORE INFORMATION

Walter Meier is consistently adding new products to the line. For complete, up-to-date product information, check with your local Walter Meier distributor, or visit waltermeier.com.

WARRANTY

JET products carry a limited warranty which varies in duration based upon the product (MW = Metalworking, WW = Woodworking).

WHAT IS COVERED?

This warranty covers any defects in workmanship or materials subject to the exceptions stated below. Cutting tools, abrasives and other consumables are excluded from warranty coverage.

WHO IS COVERED?

This warranty covers only the initial purchaser of the product.

WHAT IS THE PERIOD OF COVERAGE?

The general JET warranty lasts for the time period specified in the product literature of each product.

WHAT IS NOT COVERED?

Five Year Warranties do not cover woodworking (WW) products used for commercial, industrial or educational purposes. Woodworking products with Five Year Warranties that are used for commercial, industrial or education purposes revert to a One Year Warranty. This warranty does not cover defects due directly or indirectly to misuse, abuse, negligence or accidents, normal wear-and-tear, improper repair or alterations, or lack of maintenance.

HOW TO GET SERVICE

The product or part must be returned for examination, postage prepaid, to a location designated by us. For the name of the location nearest you, please call 1-800-274-6848.

You must provide proof of initial purchase date and an explanation of the complaint must accompany the merchandise. If our inspection discloses a defect, we will repair or replace the product, or refund the purchase price, at our option. We will return the repaired product or replacement at our expense unless it is determined by us that there is no defect, or that the defect resulted from causes not within the scope of our warranty in which case we will, at your direction, dispose of or return the product. In the event you choose to have the product returned, you will be responsible for the shipping and handling costs of the return.

HOW STATE LAW APPLIES

This warranty gives you specific legal rights; you may also have other rights which vary from state to state.

LIMITATIONS ON THIS WARRANTY

WALTER MEIER (MANUFACTURING) INC., LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD OF THE LIMITED WARRANTY FOR EACH PRODUCT. EXCEPT AS STATED HEREIN, ANY IMPLIED WARRANTIES OR MERCHANTABILITY AND FITNESS ARE EXCLUDED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

WALTER MEIER SHALL IN NO EVENT BE LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY, OR FOR INCIDENTAL, CONTINGENT, SPECI AL, OR CONSEQUENTIAL DAMAGES ARI SING FROM THE USE OF OUR PRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.

Walter Meier sells through distributors only. The specifications in Walter Meier catalogs are given as general information and are not binding. Members of Walter Meier reserve the right to effect at any time, without prior notice, those alterations to parts, fittings, and accessory equipment which they may deem necessary for any reason

whatsoever. JET

branded products are not sold in Canada by Walter Meier.

tools. For the name of an Authorized Service Center in

Warning

1. Read and understand all warnings and operating instructions before attempting to use this jack.

2. Do not exceed rated capaci ty. Overloading can cause damage to and/or failure of the jack.

3. If jack is damaged and/or oper ates abnormally, remov e from service until repaired.

4. Support load by appropriate means after lifting.

5. Always center load on the jack.

6. Use this jack as a lifting dev ic e only .

7. Use only on a hard, lev el surf ace capable of sustaini ng the load. Using t he bott le jac k on other than hard, level surfac es can r esul t in jack instability and possible loss of load.

8. Lift only on areas of the v ehicl e specified by the vehicle manufac turer.

9. Always replace damaged, missing or worn labels and use only genuine factory replacement parts when replacement is necessary.

10. O nly use attachments and/or adapter s supplied with, or sold specific ally for, the jack.

11. No alterations shall be made to thi s product.

12. Failure to comply with all of these warnings may result in loss of load, damage to jack, and/or personal injur y or proper t y damage.

Specifications

Model Number ................................................................. AHJ-12.................................................. AHJ-20

Stock Number.................................................................. 456612.................................................. 456620

Rated Capacity (t on) ................................................................ 12.......................................................... 20

Minimum Height (in.)............................................................. 9.65....................................................... 9 .65

Maximum Height (in.).......................................................... 18.70..................................................... 18 .70

Air Pressure Required (psi) ........................................... 90 to 145................................................90 to 145

Base Size (L x W)(in.) ............................................... 8.27 x 6.30............................................. 8.66 x 6.89

Net Weight (lbs) .................................................................. 26.46..................................................... 30.86

Shipping Weigh t (lbs).......................................................... 30.86 ..................................................... 3 9.68

The above specifications were current at the time this manual was publi shed, but because of our policy of continuous improvement, Walter Meier (Manufactur ing) Inc., reserves the right to c hange specifications at any time and without pri or notice, without incurring obligat ions.

(NOTE: Numbers in parentheses refer to item numbers on the breakdown, page 5.)

Inspection Before Use

Prior to each use, visually inspect for leaking hydraulic oil , dam aged, loose or mi ssing parts. If jack becomes worn or dam aged in any way, or operates abnorm all y, remove it fr om service and contact your near est service center for repair.

2. Turn the jack 90° to its horizontal position. Be sure that the air m otor is underneath t he ram assembly (37) .

3. Connect the ai r valve (29) to an air supply, and press the lev er on the air valv e (29) for 20 seconds to operate the jack.

4. Close the release valve (49) by turning it clockwise while the jack remains at its horizontal position. If the ram assembly (37) doesn’t extend, r epeat steps 1 through 4.

Purging the Hydraulic System

During transit, the jack’s hydraulic system may become filled with air, causing a spongy ram action. The air should be purged from the system before operating.

1. To purge air from the hydraulic system, open the release valve (49) by turning it counterclockwise for 2 to 3 turns.

Operation

Jack operation is controlled either manually or by external air pressure. To operate manually, insert the handle (61) into the handle socket (60). To operat e by air pressure, connect the air valve (29) to an external air pressure source. Clean the air c onnec tions and lubric ate air motor prior t o assembly.

To raise the jack, turn the release valve (49) clockwise until it is tight, and either manually pump with t he handle, or press the lev er on the air valve (29) if c onnec t ed to an air suppl y .

To lower the jack, turn the release valve (49) countercloc k wi se slightly and very slowly. Do not turn valve too quickl y or more than twice.

1. With the j ack in an upright positi on and the ram completely retracted, open the release valve (49) by tur ning it counterclockwise.

2. Unscrew and rem ov e the filler plug (31). The oil level should be just up to the hole.

3. If necessary, fill with clean hydraulic jack oil .

4. Re-install t he filler plug (31).

When lowering the jack, do

not turn rel ease valve too quickly or tu rn the valve more than twice. This can cause the load to descend too rapidly creating a dangerous situation.

With the release valve (49) open, manually pump the handle six times. This will keep internal com ponent s l ubri c ated.

To prevent corrosion, occasionall y lubri cate the handle socket pivot point (60), release valve

Maintenance

screw thread (49), and ai r v alve (29), with a light coat of oil.

Maintain oil at full level. To check the oil, proceed as follows:

Troubleshooting the AHJ Bottle Jack

Trouble Probable Cause Remedy

Erratic Action.

Ram does not advance.

Ram does not extend or only partially.

Ram advances slowly.

Air i n hydraulic system.

Viscosity of oil is too high. Change to a lower viscosity oil.

Internal leakage in ram (37).

Release valve (49) is open. Close release valve (49).

Low or no oil in reservoir.

Air locked in syste m.

Load is above capacity. Use correct equipment rated for that load.

Low oil level in reservoir.

Pump plunger (57) is binding.

Low air pressure. Adjust air pressure to 90 to 145 psi. Leaking seals. Replace seals.

Bleed air by opening release valve (49). Pump for 20 seconds.

Replace worn packi ng. Lo ok for excessive contamination or wear.

Fill reservoir with oil and bleed air from system.

Bleed air by opening release valve (49). Pump for 20 seconds.

Fill reservoir with oil and bleed air from system.

Look for dirt, gummy deposits, leaks, misalignment, worn parts, or defective packing.

Ram advances but does not hold load.

Ram will not retract, or retracts slowly.

Release valve (49) is open. Close release valve (49). Ram seals are leaking. Replace seals. Release v alv e ( 49) is clos ed. Open release v alve (49). Reservoir is too full. Drain o il to correct le vel.

Ram damaged internally.

Take jack to authorized service center for repair.

AHJ-12 and AHJ-20 Bottle Jacks

Replacement Parts

Replacement par ts are li sted on the f ollowing page s. To order par ts or reach our serv i ce departm ent, call 1-800-274-6848 Monday through Friday (see our website for business hours, www.waltermeier.com). Having the Model Number and Serial Num ber of your product av ailable when you call will allow us to serve you quickly and accurately.

Parts List: AHJ-12 Bottle Jack

Index No. Part No. Description Size Qty

1 ............... AHJ12-1...................Pu mp Cylinder ............................................. ......................................... 1

2 ............... AHJ12-2...................Y-Seal* ........................................................ 5.8x12x5.2 mm .................. 1

3 ............... AHJ12-3...................Nylon Gasket* ............................................. 5.8x12x1.25 mm ................ 1

4 ............... AHJ12-4...................C opper Washer ........................................... ......................................... 1

5 ............... AHJ12-5...................Nut .............................................................. ................. ........................ 1

7 ............... TS-1503051 .............Socket Head Cap Screw .............................. M6x20 .............................. 8

8 ............... AHJ12-8...................Ba se Cover ................................................. ......................................... 1

9 ............... SB-3MM...................Ste e l Ball ..................................................... Ø 3mm ............................. 4

10 ............. AHJ12-10 .................Air Motor Housing ........................................ ......................................... 1

11 ............. AHJ12-11 .................N ut .............................................................. ......................................... 1

12 ............. AHJ12-12 .................S pring .......................................................... ......................................... 1

13 ............. AHJ12-13 .................Was her........................................................ ......................................... 1

14 ............. AHJ12-14 .................Air Pump Plunger ........................................ ......................................... 1

15 ............. AHJ12-15 .................Air Piston Base ............................................ ......................................... 1

16 ............. AHJ12-16 .................O- Ring ......................................................... 20.3x2.6 5mm .................... 2

17 ............. AHJ12-17 .................Air Shuttle Valve .......................................... ......................................... 1

18 ............. AHJ12 -18A ..............O- Ring ......................................................... 42.7x3.7 mm ...................... 2

19 ............. AHJ12-19 .................Air Piston ..................................................... ......................................... 1

20 ............. TS-1502021 .............Socket Head Cap Screw .............................. M5x10 .............................. 3

21 ............. AHJ12-21 .................Shuttle Valve Seal ....................................... ......................................... 1

22 ............. AHJ12-22 .................O- Ring ......................................................... 57x5.3 mm ......................... 2

23 ............. AHJ12-23 .................O- Ring ......................................................... 67x2.4 mm ......................... 1

24 ............. AHJ12-24 .................Top Cover ................................................... ......................................... 1

25 ............. AHJ12-25 .................Snap Ring ................................................... Ø 14mm ........................... 1

26 ............. AHJ12-26 .................O- Ring ......................................................... 11.5x1.5 mm ...................... 2

27 ............. AHJ12-27 .................Coupler ....................................................... ......................................... 1

28 ............. AHJ12-28 .................Air Hose Assembly ...................................... ......................................... 1

29 ............. AHJ12-29 .................Air Valve Assembly ...................................... ......................................... 1

30 ............. AHJ12-30 .................Oil Tank Assembly ....................................... ......................................... 1

31 ............. AHJ12-31 .................Oil Filler Plug ............................................... ......................................... 1

32 ............. AHJ12-32 .................Snap Ring ................................................... Ø 36mm ........................... 1

33 ............. AHJ12-33 .................O-Ring Retainer .......................................... ......................................... 1

34 ............. AHJ12-34

35 ............. AHJ12-35 .................S eal Washer * .............................................. ......................................... 1

36 ............. AHJ12-36 .................Piston Ring .................................................. ......................................... 1

37 ............. AHJ12-37 .................R a m Assembly ............................................ ......................................... 1

38 ............. AHJ12-38 .................Bushing ....................................................... ......................................... 2

39 ............. AHJ12-39 .................O- Ring* ....................................................... 43 x3.55mm ....................... 1

40 ............. AHJ12-40 .................Snap Ring ................................................... ......................................... 1

41 ............. SB-4MM...................Steel Ball ..................................................... Ø 4mm ............................. 1

42 ............. AHJ12-42 .................S a fe ty V a l ve Bal l Se a t ................................. ......................................... 1

43 ............. AHJ12-43 .................S a fe ty V a l ve Spr ing ..................................... ......................................... 1

44 ............. AHJ12-44 .................Safety Valve Adjusting Screw ...................... ......................................... 1

45 ............. AHJ12-45 .................O- Ring* ....................................................... 7.5 x2.65mm ...................... 2

46 ............. AHJ12-46 .................Screw .......................................................... ......................................... 1

47 ............. AHJ12-47 .................Copper Washer ........................................... ......................................... 4

48 ............. AHJ12-48 .................Valve Block Assembly ................................. ......................................... 2

49 ............. AHJ12-49 .................Release Valve Assembly ............................. ......................................... 1

50 ............. SB-6MM...................Steel Ball ..................................................... Ø 6mm ............................. 1

51 ............. AHJ12-51 .................Link Pin ....................................................... ......................................... 2

52 ............. AHJ12-52 .................P in............................................................... ......................................... 3

53 ............. AHJ12-53 .................Pump Cylinder ............................................. ......................................... 1

54 ............. AHJ12-54 .................O- Ring* ....................................................... 7x3 mm ............................. 2

55 ............. AHJ12-55 .................N y lon Ga sket* ............................................. 7x12 x1.5mm ..................... 1

56 ............. AHJ12-56 .................D ustproo f Ring ............................................ 12.5x18.5 x6mm ................ 1

57 ............. AHJ12-57 .................Pump Plunger.............................................. ......................................... 1

.................O-Ring* ....................................................... 36x4.6mm ......................... 1

58 ............. AHJ12-58 .................Pump Plunger Pin........................................ ......................................... 1

59 ............. AHJ12-59 .................L ink ............................................................. ......................................... 1

60 ............. AHJ12-60 .................Handle Socket ............................................. ......................................... 1

61 ............. AHJ12-61 .................Front Handle ............................................... ......................................... 1

62 ............. AHJ12-62 .................Rear Handle ................................................ ......................................... 1

63 ............. TS-1540031 .............Hex Nut ....................................................... M5 .................................... 1

64 ............. TS-2361051 .............Lock Wash er ............................................... M5 .................................... 1

65 ............. TS-1550031 .............Flat Washe r ................................................. M5 .................................... 1

66 ............. TS-2285302 .............Phillips Pan Head Machine Screw ............... M5 x30 .............................. 1

67 ............. AHJ12-67 .................Hex Nut (Thin) ............................................. M10 .................................. 2

68 ............. AHJ12-68 .................R eturn Spring .............................................. ......................................... 2

69 ............. AHJ12-69 .................Screw ......................................................... ......................................... 2

70 ............. AHJ12-70 .................Spring Lid .................................................... ......................................... 1

71 ............. AHJ12-71 .................S pring Wash er............................................. ......................................... 1

72 ............. SB-4MM...................Steel Ball .....................................................

4mm ............................... 1

73 ............. AHJ12-73 .................R e ta in e r ...................................................... ......................................... 1

74 ............. AHJ12-74 .................Snap Ring ................................................... ......................................... 1

75 ............. AHJ12-75 .................N y lon Ga sket ............................................... 14x18x1.25mm ................. 2

76 ............. AHJ12-76 .................N y lon Ga sket ............................................... 10x14x1.25mm ................. 2

77 ............. AHJ12-77 .................O- Ring ......................................................... 5x1.8m m........................... 3

................. AHJ12- RP ................Repair Kit for AHJ-12 * ................................ ...........................................

Items marked wit h an asteri sk (*) ar e incl uded in the Repair Kit.

Parts List: AHJ-20 Bottle Jack