INSTRUCTION MANUAL – HYDRAULIC HAND PUMPS:
Model Series: HP110, HP227-257, HP211-252D, HPX1500-2800
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
5.
If pump is to be transported after use,
replace the transit plug in tank.
WARNING: DO NOT RELY ON THE PUMP VALVE
FOR POSITIVE LOAD HOLDING. IF IT IS REQUIRED
TO LOCK THE LOAD IN POSITION USE A MANUAL
SHUT OFF VALVE IN THE CIRCUIT. NEVER WORK
UNDER A LOAD SUPPORTED ONLY BY HYDRAULIC
MEANS.
FILLING WITH OIL.
Ensure cylinder is full retracted.
HP110: Position pump vertically with pump
head downwards. Remove central plug on rear
of pump and check oil level using dipstick fitted
to plug.
Use only Hi-Force HF032 oil.
HP227/HP257
1)
The pump may be used either
horizontally or vertically with the hose
end downwards. The pump is
equipped with a pressure relief valve
factory set at the maximum operating
pressure. Before use unscrew transit
plug and replace with breather on the
top of the tank. This will maximise the oil
volume available.
2)
To advance the cylinder, turn the
release knob clockwise. Operate
pump handle. The pump will
automatically switch from low pressure
(high flow) operation to high pressure
(low flow) as the pressure increases.
See Figure 1. (HP257 used in diagrams).
Note: The cylinder will automatically be held in
the advance position and will not retract of its
own accord.
3)
To retract the cylinder turn release
knob anti-clockwise slowly, ensuring
that the cylinder does not retract too
fast as to make the operation unsafe.
See Figure 2
4)
If pump is to be transported after use,
replace the transit plug in tank.
WARNING: DO NOT RELY ON THE PUMP VALVE
FOR POSITIVE LOAD HOLDING. IF IT IS REQUIRED
TO LOCK THE LOAD IN POSITION USE A MANUAL
SHUT OFF VALVE IN THE CIRCUIT. NEVER WORK
UNDER A LOAD SUPPORTED ONLY BY HYDRAULIC
MEANS.
HP211, HP212, HP232, HP252.
The HP211, HP212, HP227, HP232 and HP252 two
speed hand pumps are manually operated
hand pumps suitable for a wide range of
applications. All models are supplied complete,
with a pre-filled oil reservoir ready for
immediate use. All models feature low handle
effort characteristics for easy operation and
lightweight design and are of strong durable
construction. All 4 pumps have a max working
pressure of 700 bar and are of Aluminium
construction.
1)
The pump may be used either
horizontally or vertically with the hose
end downwards. The pump is
equipped with a pressure relief valve
factory set at the maximum operating
pressure. Before use unscrew transit
plug and replace with breather on the
top of the tank. This will maximise the oil
volume available
