Hi-Force JAH Series - User Manual

TDS 1331
0806
JAH ALUMINIUM JACKS
Hi-Force JAH range of lightweight Aluminium jacks offer a wide variety of
capacities and lift height options. Available as either plain ram lifting jacks,
with or without ‘failsafe’ mechanical lock ring, or optional low height claw lifting
design. All models are constructed of lightweight Aluminium with all critical
functioning parts from high quality steel.
Instructions cover all the below models:
MODEL
FEATURES
JAH620
JAH1220
JAH630
JAH1230
JAH660
JAH1260
Jack with plain piston.
JAH620C
JAH1220C
JAH630C
JAH1230C
JAH660C
JAH1260C
Jack with plain piston and lifting claw.
JAH620SR
JAH1220SR
JAH630SR
JAH1230SR
JAH660SR
JAH1260SR
Jack with ‘failsafe’ locking ring.
SAFETY.
READ THIS MANUAL BEFORE OPERATING THE PUMP. FAILURE TO
OBSERVE THE FOLLOWING WARNINGS COULD RESULT IN SERIOUS
BODILY INJURY.
• Do not attempt to exceed the rated load on the head or toe of the jack.
• In operation, never drop loads onto the jack. Always raise the head/toe
to the load.
• Always ensure the full base area of the jack is supported when in use.
• Always ensure that loads are applied centrally to the ram, or to the full
extent of the claw.
• DO NOT allow any persons to work under the load, when it is only
supported by hydraulic jacks.
• Always clean the ram and retract it after use.
• Always remove the jack operating handle when not in use.
• Do not use if there is evidence of oil leakage.
• Never extend the ram by any means other than pumping the jack.
• Inspect and clean the jack after every use, but if subjected to abnormal
or shock loading inspect for damage immediately.

Summary

JAH Aluminium Jacks Overview

Safety Warnings

Critical safety instructions and warnings for operating the hydraulic jacks to prevent serious bodily injury.

Jack Usage and Maintenance

Checking the Oil Level

Instructions for checking the hydraulic oil level, ensuring it is within the specified range.

Operation of Jack

Guidance on operating the hydraulic jack, including lever control for lifting and lowering.

Jack Types and Accessories

Jacks with Locking Collars (Type SR)

Description of jacks equipped with threaded pistons and locking collars for mechanical support.

Jacks with Lifting Claws (Type C)

Details on lifting claws as an accessory for low height lifting points.

Operating Environment and Positions

Operating Positions

Information on the correct and recommended operating positions for the jack.

Stroke Limiter

Explanation of the internal by-pass valve preventing over-extension of the piston.

Operating Environment

Specifies the intended industrial operating temperatures for the hydraulic jacks.

Hi-Force JAH Series Specifications

General

Brand	Hi-Force
Model	JAH Series
Category	Jacks
Language	English