Troubleshooting - Enerpac WR-5 Manual De Instrucciones

CAUTION: Be sure threads are fully engaged. All loads
must be transferred to the face of the plunger. Threads
will be stripped if loaded.
5.0 OPERATION
Refer to the instruction sheet supplied with your pump for
information on installing and operating your pump.
1. Check the oil level in the pump.
2. Make sure all connections are tight and leak free.
3. Remove air from the system by placing the cylinder at a lower
level than the pump and cycling the cylinder several times
until the motion is smooth.
IMPORTANT: Do not exceed the maximum system pressure for
the spreader model being used:
Model A-92: Maximum system pressure must not exceed 5,000
psi (344 bar). Spreader maximum capacity is achieved at 50
percent of the RC-10 cylinder's rated maximum pressure.
Model WR-15: Maximum system pressure varies depending on
spread distance. Refer to WR-15 load ratings table in Section
3.0.
Model WR-5: Maximum system pressure must not exceed
10,000 psi (689 bar).
WARNING: Failure to observe pressure limits may
result in serious personal injury and/or damage to
spreader.
CAUTION: Pressurizing the spreader with the jaws in
the fully open position can damage the spreader and
may result in failure of spreader components.
Problem Possible Cause
Cylinder does Oil level in pump reservoir is low.
not advance,
Pump release valve open.
advances slowly,
or advances in
Loose hydraulic coupler.
spurts.
Load is too heavy.
Air trapped in system.
Cylinder plunger binding.
Cylinder Leaking connection.
advances, but
Leaking cylinder seals.
does not hold
pressure.
Internal leakage in pump.
Cylinder does Pump release valve closed.
not retract,
Pump reservoir is over-fi lled.
retracts part
way, or retracts
more slowly than
Loose hydraulic coupler.
normal.
Air trapped in system.
Hose I.D. too narrow.
Cylinder retraction spring broken or other
cylinder damage.
Hyquip Limited New Brunswick Street Horwich Bolton Lancashire BL6 7JB UK
Company Registered in England No: 4167649 VAT Registration No: 732 5692 25 BS EN ISO 9001:2008 No: LRQ 0964389
+44 (0)1204 699 959
enquiries@hyquip.co.uk
www.hyquip.co.uk/web/index
4. Operate the pump to spread the cylinder jaws. The jaws will
close automatically when the pressure is released. The
speed of retraction is dependent on the length of the hose
and other restrictions in the line.
6.0 MAINTENANCE
Use dust caps on couplers when cylinders are disconnected to
prevent dirt from entering the system. Keep parts clean. Inspect
all components for damage or wear before and after use.

7.0 TROUBLESHOOTING

The following information is intended as an aid in determining
if a problem exists. For repair service, contact the Authorized
Enerpac Service Center in your area.
Troubleshooting
Solution
Add oil according to the pump instructions.
Close pump release valve.
Check that all couplers are fully tightened.
Do not attempt to lift more than rated tonnage.
Remove air according to the instructions above.
Check for damage to cylinder.
Have cylinder serviced by a qualifi ed hydraulic technician.
Check that all connections are tight and leak free.
Locate leak(s) and have equipment serviced by a qualifi ed
hydraulic technician.
Have cylinder serviced by a qualifi ed hydraulic technician.
Open pump release valve.
Drain oil level to full mark.
See pump instructions for adding oil.
Check that all couplers are fully tightened.
Remove air according to the instructions above.
Use larger diameter hydraulic hose.
Have cylinder serviced by a qualifi ed hydraulic technician.
3
CAUTION: Keep
hands away from the
pivot point (A) of
spreader jaws.
CAUTION: Keep
hands clear of the
A
load, away from the
jaws of the spreader.
WARNING: DO NOT
handle pressurized
hoses. Escaping oil
u n d e r pressure can penetrate
the skin, causing serious injury.
If oil is injected under the skin,
see a doctor immediately.