INSTRUCTION MANUAL: Aluminium Jacks
Model Series: JAS, JAH
Hi-Force Limited – Prospect Way – Daventry – Northants NN11 8PL – United Kingdom
Tel: +44(0) 1327 301000: Fax: +44(0) 1327 706555: Website: www.hi-force.com
CARE AND STORAGE
Wipe the piston clean before lowering. When the
Hydraulic Jack is not in use store upright with the
piston retracted in a clean environment.
SAFETY WARNINGS!
ALWAYS raise the piston to the load.
DO NOT drop loads onto the Jack.
ALWAYS support the base of the Jack when
in use.
NEVER go under load when only the Jack
supports it.
DO NOT attempt to lift a load greater than
the capacity of the Jack.
Provide solid and flat foundation for the
jack to operate from.
Make sure that there is sufficient spare
lifting capacity and stroke when selecting
Jack/s for any application.
Check the Jack load rating before use.
Avoid off-centre loading.
Before using any hydraulic equipment, read the
operating instructions carefully and check that they
are fully understood.
Model Series JAH – 20tonne to 60tonne Capacity.
JAH1230C
JAH620SR JAH660
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.
This manual covers the following model variants of
Jack:-
JAH620,JAH1220,JAH630,JAH1230,JAH660,JAH1260
Jacks with plain piston only
JAH620C,JAH1220C,JAH630C, JAH1230C,JAH660C,
JAH1260C
Jacks with plain piston and lifting claw
attachment
JAH620SR,JAH1220SR,JAH630SR,JAH1230SR,
JAH660SR, JAH1260SR
Jacks with Failsafe locking ring.
Please read the following instructions carefully
before operating the product and keep them in a
safe place for future reference.
It is the responsibility of the purchaser to ensure that
operators are properly trained in the safe use of this
equipment and have access to HI-Force Operating
and Safety Instructions.
No modification and/or additions may be made to
this equipment without the written permission of the
manufacturer.
It is expected that the product is used by
competent technical personnel who have been
properly trained to use hydraulic lifting equipment
Description:
This equipment is provided for the purpose of lifting
or lowering loads, or exerting a force, under the
control of a trained operator.
The equipment is supplied completely assembled
and ready for use. No service adjustments are
necessary or possible during operation.
An internal safety relief valve (factory set) is fitted
which limits the load that may be lifted to the
equipment rated load + 10% maximum.
Before Each Use
Ensure that the jack is in good condition.
Check the external surfaces for absence
of mechanical damage and/or oil leaks. If
either is present do not use the equipment
and have it serviced.
Ensure that the external surfaces are dirt
free.
Check the oil level
GENERAL OPERATING INSTRUCTIONS
Place the jack on a firm level foundation
fully supporting the jack base, and if
