Hi-Force JCS Series User manual

INSTRUCTION MANUAL:
Model Series: JCS & JCH Compact Jacks
Hi-Force Limited –Prospect Way –Daventry –Northants NN11 8PL –United Kingdom
Tel: [phone]: Fax: [phone]: Website: www.hi-force.com
Hi-Force Compact Jack Series: JCS and JCH
JCS Models have solid piston and are spring
assisted return.
JCH models have a hollow bore piston and are
gravity return.
JCS Compact Jacks:
JCH Compact Jacks:
All Hi-Force JCS and JCH series jacks are supplied
from the factory pre-filled with oil, and are ready
for use.
1.0 Inspection of the product upon receipt:
On receipt of the product, visually inspect the item
for any evidence of shipping damage. Please note
shipping damage is not covered by warranty. If
shipping damage is found notify the carrier
immediately and refrain from putting the product
into service. The carrier is responsible for repair and
replacement costs resulting from damage in transit
shipment.
2.0 Safety Precautions:
Read and follow all the instructions and safety
warnings carefully prior to use of the equipment.
Failure to do so could result in equipment damage
or failure of the equipment or personal injury. Hi-
Force will not be held responsible for any damage
to the equipment or personal injury resulting from
unsafe use of the product, lack of maintenance or
incorrect operation. If in doubt on the correct
usage of any Hi-Force equipment, contact your
nearest Hi-Force office or distributor. If the operator
has not been trained on high pressure hydraulic
equipment and its safe use consult your local Hi-
Force sales office who can offer you training
courses for operators.
All operators should ensure that all necessary
personal protective equipment as specified by
their employer is worn when operating any
hydraulic equipment. Safety shoes, safety glasses/
visor and protective gloves should be worn at all
times. All relevant risk assessments should be
completed prior to use of the 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.
Keep hydraulic Jacks away from flames and
direct heat.
Hydraulic Jacks must only be serviced by a
qualified technician.
To protect your warranty, only use Hi-Force’s
hydraulic oil.
Immediately replace any worn or damaged parts
using genuine Hi-Force parts only.
Hi-Force JCS & JCH Jacks are despatched from the
factory pre-filled with oil, and are ready for use.
They can be used, if installed correctly, in any
position, for example sideways, upside down etc.
Available Models:
JCS Range:
JCH Range:
General Description:
The JCS jack has a solid piston and a spring to
retract the piston. The JCH jack has a hollow piston
to allow tensioning and pulling of studs etc, and the
piston must be pushed back manually or by the
load. Either style jack can be used, in any position,

INSTRUCTION MANUAL:
Model Series: JCS & JCH Compact Jacks
Hi-Force Limited –Prospect Way –Daventry –Northants NN11 8PL –United Kingdom
Tel: [phone]: Fax: [phone]: Website: www.hi-force.com
REMOVABLE STEEL SADDLE
JCS10
OPERATING LEVER
ALTERNATE OPERATING
LEVER POSITION
RELEASE VALVE
HOLLOW PISTON TO ALLOW
TENSIONING DUTIES
PUMP MECHANISM
SWIVELS THROUGH
306O
JCH10
for example sideways, upside down etc.
OIL FILLER PLUG
There are two safety devices fitted as follows:
Pressure relief valve to prevent
overloading
Steel stop ring to limit maximum stroke
TO LIFT OR PUSH LOAD
Using the key on the end of the operating lever, turn
release valve screw clockwise to close. Do not use
excessive force.
Put operating lever into either socket on the pump
mechanism, rotate to a comfortable position and
operate pump. The piston will rise and lift load.
When the piston reaches full stroke the stop ring
prevents the piston from rising further.
TO LOWER LOAD
Using key on operating lever, turn release valve
screw anti-clockwise to open. Opening release
valve SLOWLY will control rate of lowering. DO NOT
overload jack during lowering. The JCS jacks are
fitted with a return spring, the piston will retract even
under no load. JCH jacks need to be pushed back
either by the load, or by hand. Do not stand on the
jack when working in restricted spaces or at heights.
CARE AND STORAGE
Whenever possible wipe piston clean before
lowering. When the jack is not in use, store with the
piston retracted in a clean dry environment.
SAFETY WARNINGS!
ALWAYS raise the piston to the load.
DO NOTdrop 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.
Service & Maintenance:
Only genuine Hi-Force spare parts should be used
in the repair or servicing of these units.
We recommend that any servicing or repair of this
equipment is only carried out by an authorised Hi-
Force repair centre.
See www.hi-force.com for more information
For full and comprehensive details on this piece of
equipment and all of the Hi-Force range of lifting
and jacking equipment please go to:
www.hi-force.com