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Hydraulic High Lift 

Transmission Jacks

Operating Instructions and Parts Manual                                                          5ML72B and 5M466C

SHI018

Made in Taiwan

052016

Please read and save these instructions. Read through this owner’s manual carefully before using product. Protect yourself 

and others by observing all safety information, warnings, and cautions. Failure to comply with instructions could result in 

personal injury and/or damage to product or property. Please retain instructions for future reference.

Model

Capacity

Min Height

Max Height

5ML72B

1000 lbs (453.6 kg)

39-1/2" (100.3 cm)

78-1/8" (198.44 cm)

5M466C (air actuated)

1000 lbs (453.6 kg)

39-1/2" (100.3 cm)

78" (198.12 cm)

Figure 1 — Hydraulic High Lift Transmission Jack Components

Air Motor

(Model 5M466C only)

Caster

Foot 

Pedal

Saddle

Release 

Pedal

Air Lift 

Control Pedal

Adjusting 

Knob

Description

Westward Hydraulic High Lift Transmission Jacks provide quick, effortless lifts of rated capacity loads including 

transmissions and differentials of automotive vehicles.  Both models have stamped steel frame construction with a steel 

base. Model 5M466C features a powerful air motor  Jack pumping can be done either by air operation or manual 

operation by foot pedal.  The saddle has both side and tilting angle adjustment to accomodate  various transmissions 

and differentials.  Hydraulic cartridges provide overload protection, while bypass mechanism offers stroke limitation of 

ram piston.  Metered release valve assures precise adjustment of saddle height and smooth lowering of load.  These 

jacks are designed to meet applicable ANSI/PALD Standards.

General Safety Information

Save these instructions. 

For your safety, read, understand, and follow the information provided with and on this device 

before using. The owner and/or operator shall have an understanding of the device, its operating characteristics and 

safety operating instructions before operating the equipment. The owner and/or operator shall be aware that use and 

repair of this product may require special skills and knowledge. Instructions and safety information shall be read to and 

discussed with the operator in the operator’s native language, making sure that the operator comprehends their contents, 

before use of this equipment is authorized. If any doubt exists as to the safe and proper use of this device, remove from 

service immediately.

Inspect before each use. 

Do not use if abnormal conditions such as cracked welds, damaged, loose or missing parts are 

noted. Any equipment that appears damaged in any way, is found to be worn, or operates abnormally shall be removed 

from service until repaired. If the equipment has been or is suspected to have been subjected to an abnormal load or shock, 

immediately discontinue use until inspected by a factory authorized repair facility (contact distributor or manufacturer for 

list of authorized repair facilities). It is recommended that an annual inspection be made by an authorized repair facility. 

Labels and Operator’s Manuals are available from the manufacturer. 

                              Study, understand and follow all instructions before operating this device. Do not exceed 

rated capacity. Use only on hard, level surfaces. Adequately support the vehicle before starting repairs. Use of 

this product is limited to the removal, installation, and transportation in the lowered position, of 

transmissions, transfer cases, and transaxles. Only attachments and/or adapters supplied by the 

manufacturer shall be used. Failure to heed these markings may result in personal injury and/or property 

damage.

Specifications and Dimensions

Summary of Contents for 5M466C

Page 1: ...nformation provided with and on this device before using The owner and or operator shall have an understanding of the device its operating characteristics and safety operating instructions before oper...

Page 2: ...ore putting into service to ensure the pump operates smoothly Replace worn or damaged parts and assemblies with Omega authorized replacement parts only Venting trapped air procedure 1 Lower saddle to...

Page 3: ...not lift load 1 Release valve not tightly closed 2 Overload condition 1 Ensure release valve tightly closed 2 Remedy overload condition Jack lift but not maintaining pressure 1 Release valve not tigh...

Page 4: ...s Illustration 5ML72B ref page 5 for part numbers 1 a a 2 b 3 c 4 d 5 e 6 2 6 1 f 7 g 9 i 8 h 10 j 11 k 12 l 13 m 14 n o p q r s t v 21 u For Repair Parts call 1 800 323 0620 24 hours a day 365 days a...

Page 5: ...1 1 11 12 13 14 15 Release Valve Pedal Pin Retaining Pin Hardware Kit Coupler Male 5M466C G390 10005 000 5405 07027 000 5405 02018 000 G390 30000 000 G831 00002 000 1 5M466C Qty 2 1 5M466C Qty 2 1 5M4...

Page 6: ...la informaci n que viene con este dispositivo antes de su uso El propietario u operador debe tener conocimientos sobre el dispositivo sus caracter sticas operativas y las instrucciones para un funcion...

Page 7: ...4 NPT Si instala un acoplador de aire diferente use cinta o compuesto aislante en todas las conexiones neum ticas Instale un secador de aire y engrasador en l nea para asegurar el funcionamiento fiabl...

Page 8: ...ite a trav s del motor neum tico El aceite puede verterse dentro de la conexi n de la manguera m s cerca de la conexi n del suministro de aire luego simplemente ponga el gato en funcionamiento 2 Agreg...

Page 9: ...p gina 17 para ver los n meros de pieza 1 a a 2 b 3 c 4 d 5 e 6 2 6 1 f 7 g 9 i 8 h 10 j 11 k 12 l 13 m 14 n o p q r s t v 21 u Para solicitar piezas de repuesto llame al 1 800 323 0620 las 24 horas d...

Page 10: ...za del asiento Conjunto del tornillo Conj del tornillo de ventilaci n Conjunto de manija G360 33000 000 G360 34000 000 G360 40000 000 A070 90038 K02 G360 90009 K01 G390 20000 000 1 1 1 2 1 1 11 12 13...

Page 11: ...ignes fournies avec ce produit ou se trouvant sur celui ci avant de l utiliser Le propri taire ainsi que l utilisateur doit comprendre le fonctionnement du produit ses caract ristiques de fonctionneme...

Page 12: ...s pneumatiques Pour assurer un fonctionnement fiable installez un dessiccateur d air en ligne et un huileur d air en ligne 5 Assurez vous que le cric fonctionne en douceur Avant d utiliser le cric pou...

Page 13: ...fication Dayton 4ZF22 S il n y a pas d huileur en ligne versez une demi cuill re th d huile dans le moteur air Faites tomber quelques gouttes d huile ou versez en dans le branchement de tuyau le plus...

Page 14: ...conna tre les num ros des pi ces 1 a a 2 b 3 c 4 d 5 e 6 2 6 1 f 7 g 9 i 8 h 10 j 11 k 12 l 13 m 14 n o p q r s t v 21 u Pour obtenir des pi ces de rechange composez le 1 800 323 0620 Disponible 24 h...

Page 15: ...e de surpression Goupille Goupille de retenue Trousse de quincaillerie Raccord m le 5M466C G390 10005 000 5405 07027 000 5405 02018 000 G390 30000 000 G831 00002 000 1 5M466C Qt 2 1 5M466C Qt 2 1 5M46...

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