Hi-Force HEP310444 Manuale di istruzioni per l'uso - Pagina 9
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9. The pump is fitted with an adjustable pressure relief valve (8) to restrict the output pressure to any
desired value, up to the maximum working pressure of the pump.
Check the adjustable pressure relief valve is working:
NOTE: Checking / setting the relief valve pressure is to be done with the hydraulic female couplers
fitted to the service ports only.
Press the green 'ON' button (13) and turn the directional control valve to the advance position (for 2
way valves turn the lever fully clockwise, for the 3 and 4-way valves turn the lever fully anti-clockwise
and for the solenoid valves press and hold the 'advance' button on the pendant).
Then release the locking feature and turn the control knob clockwise to increase the relief valve
setting (the pressure reading on the gauge should increase) and anti-clockwise to decrease the
relief valve setting (the pressure reading on the gauge should decrease).
5.2 Filling the Pump with Oil
IMPORTANT:
The HEP2 & HEP3 series of hydraulic pumps use ISO46 Grade Hydraulic Oil.
Stand the pump on a firm, level surface.
Remove the filler cap (11) from the filler breather.
Fill the reservoir with clean, high quality ISO46 hydraulic oil via the filler breather until the oil level
reaches the upper level indicator (2).
Replace the filler cap (11) on the filler breather.
NOTE: More hydraulic oil can be added to the reservoir to assist with cooling if required, but NEVER more
than 25mm below the tank lid.
IMPORTANT:
Only add oil to the reservoir when the connected cylinder/tool is fully retracted. Failure to do
so will result in the system containing more oil than the reservoir can hold.
5.3 Electrical Connection
Before making an electrical connection, refer to the data plate located on the motor (4) for voltage and
current requirements. Once satisfied the supply is suitable, an electrical connection can be made.
NOTE: Supply voltages vary from country to country. Hi-Force pumps will operate within the normal voltage
tolerance ranges, but in extreme cases where they are operated for long periods at high pressures
and in low voltage conditions, the motor may overheat and shut down.
NOTE: A common cause of pump failure is the use of long extension cables to connect the pump to the
mains supply. The pump should be situated as close as possible to the wall outlet.
Operating Instruction Manual:
OM-HEP2/3-01
9
From Serial Number:
BQ3323