Hi-Force ALUMINIUM HP252D Instrukcja obsługi - Strona 10
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IMPORTANT:
Make sure that all coupler threads are fully engaged.
Only use hoses rated at 700bar with a 4:1 safety rating on burst pressure.
6.4 Bleeding Trapped Air from the Hydraulic System
The bleeding of trapped air from a hydraulic system must only be performed by qualified
personnel who have been trained and are competent to do so.
The method of air removal will depend on the hydraulic system under test. Safe, effective methods of air
removal, must be established before starting any operation. Pressure testing with air trapped in the hydraulic
system can lead to an increased risk to the equipment and the operator.
NOTE: To reduce the likelihood of introducing air into the hydraulic system, make sure that all hoses are
pre-filled with fluid before connecting them to the hydraulic system.
Cylinder and hoses are not always completely filled with oil when new. For safe and efficient operation,
trapped air must be removed from the system. The following procedure must be carried out with the
cylinder/s connected to the pump, but not operating under load.
To remove air from the system, proceed as detailed below:
Make sure the pumps oil filler breather cap is fitted. (if applicable)
With all hydraulic connections made, position the cylinder/s below the level of
the hydraulic pump, as illustrated in left.
Using the pump, fully advance and retract the cylinder/tool piston several times
until the operation is smooth. (Refer to the pumps operation
instructions, Section 7, for details of pump operation).
Double-Acting: If possible, position double-acting cylinders on their side with
the couplers facing up.
Using the pump, fully advance and retract the cylinder/tool piston several times
until the operation is smooth. (Refer to the pumps operating manual for details
of pump operation)
Operating Instruction Manual:
OM-HP-ALUMINIUM-01
10
Serial Numbers:
From: DF2001