Enerpac HCRL-10010, Инструкция

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5.0 LIFTING THE CYLINDER
All HCRL-Series cylinders are equipped with TWO pre-installed
lifting eyes. Always use both lifting eyes when hoisting the
cylinder.
Lifting straps or chains must be positioned at an angle where
they will not interfere with the cylinder base. Use of a spreader
bar is recommended. See Figure 3.
Figure 3, Lifting Arrangements (typical)
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OK
6.0 SETUP
6.1 Hydraulic Pump Requirements
Hydraulic pumps are sold separately and are not included with
the cylinders.
A hand-operated hydraulic pump can be used to operate a
smaller HCRL-Series cylinder. However, a large size cylinder
(or a series of coupled cylinders) will typically require the use of
an electric, air or gas powered hydraulic pump.
Whichever type of pump is used, be certain that the pump
reservoir is capable of holding a sufficient amount of hydraulic
oil to operate the cylinder (or set of cylinders) to full extension.
The pump must be equipped with a four-way directional control
valve. This valve may be either manual or remote operated.
The pump must also be equipped with a separate safety
pressure relief valve that opens if the system working pressure
exceeds 10150 psi [700 bar]. Verify that the pump safety relief
valve is adjusted to the proper setting before using the pump
with the cylinder(s).
6.2 Hydraulic Oil Requirements
Use of Enerpac HF Series ISO 32 hydraulic oil is recommended.
Enerpac HF oil is available at your local Enerpac Distributor or
Authorized Service Center.
NOTICE
• Failure to use the correct oil type (high-quality ISO 32
hydraulic oil) may result in damage to cylinder hydraulic
components and will void the product warranty.
• Be sure that the oil is clean. The oil cleanliness should
be maintained to a maximum level of 18/16/13 per the
ISO 4406 standard. If the oil develops a milky, cloudy or
dark appearance, it should be changed immediately.
• To avoid overfilling and possible equipment damage, add
oil to the pump reservoir only after all cylinder plungers are
completely retracted and system pressure is released.
• When using a hand-operated pump to power the cylinder(s),
it is permissible to use a high-quality brand of ISO 15
hydraulic oil. The lower oil viscosity will result in reduced
pumping effort, especially in cold weather conditions.
6.3 Hydraulic Connections
HCRL-Series cylinders are equipped with two 3/8"-18 NPTF
female couplers, one for advance side hydraulic flow and one
for retract side hydraulic flow.
Refer to Figure 2, items 7 and 8 for locations.
Be certain that all couplers are fully connected, so that hydraulic
flow is not blocked or restricted.
All hoses, fittings and other hydraulic components in the circuit
must be rated for at least 10150 psi [700 bar] operation.
NOTICE
HCRL-Series cylinders are double-acting. In both
operational modes, return oil flow (from the non-pressurized
side of the cylinder) must be directed back to the hydraulic
reservoir. Check for proper flow before placing the equipment
into operation.
6.4 Air Removal
Trapped air must be removed from the hydraulic cylinder and
hoses before placing the system into operation. If multiple
cylinders are to be used, it is recommended that air be
removed from each cylinder individually. Refer to the following
procedure:
1. Place the cylinder in the vertical position, with the base
located on a flat and level surface. Be sure that there is no
load on the plunger.
2. Verify that the lock nut is positioned at the top of the
plunger. This will allow the plunger to be fully retracted
during the air removal process.
3. Position the hydraulic pump so it is located higher than the
cylinder.
4. Fully advance and retract the plunger, being careful to avoid
pressure build-up at full extension and full retraction. Repeat
this process until plunger motion is smooth in both directions.
5. Fully retract the plunger after completing air removal
procedures. Check oil level in pump hydraulic reservoir.
Add oil if oil level is low.
6. Repeat steps 1 through 5 for all cylinders to be used in the
hydraulic circuit.
NOTICE
Refer to Section 6.2 of this document for hydraulic
oil requirements. Follow the pump manufacturer's instructions
when adding oil to the pump reservoir. To avoid overfilling, be
certain that the cylinder plunger is fully retracted before adding
any oil.
6.5 Cylinder Base Support
Be certain to provide adequate support for the cylinder base.
All HCRL-Series cylinders require a flat and stable lifting
surface that is capable of supporting the load without settling.
A steel plate or steel bars of appropriate size should be placed
between the cylinder base and the ground or other lifting
surface. See Figure 4.
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Figure 4, Cylinder Base Support
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Rough and
unstable surface
Flat and stable
surface with steel plate
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