8
6.0 TROUBLESHOOTING
Table 3 - Troubleshooting Guide
Problem Possible Cause Solution
Cylinder does not advance. Oil level in pump reservoir is low.
Release valve is open
(if equipped).
Loose hydraulic coupler.
Load is too heavy.
Air trapped in system.
Cylinder plunger binding.
Add oil according to the maintenance
instructions.
Close the release valve.
Check that all couplers are fully tightened.
Do not attempt to lift more than rated tonnage.
Remove air according to instructions.
Check for damage to cylinder. Have cylinder
serviced by a qualified hydraulic technician.
Cylinder advances, but does not
hold pressure.
Leaking connection.
Leaking seals.
Internal leakage in pump.
Check that all connections are tight and leak
free.
Locate leak(s) and have equipment serviced by
a qualified hydraulic technician.
Have pump serviced by a qualified hydraulic
technician.
5.2 Oil Fill Information
Important: Non-vented reservoirs have a predetermined
oil level that should not be exceeded. Refer to Table 1 in
Section 2.0 for oil capacities. Never fill a pump beyond
the maximum oil level or capacity recommended by the
manufacturer.
• Non-vented hand pumps require some air in the reservoir
to function properly. A non-vented reservoir should never
be completely filled. If the reservoir is completely filled,
a vacuum will form, preventing proper operation of the
pump.
• Vented hand pumps can be filled up to the bottom of
the oil fill hole. However, it is recommended to leave a
small air gap to allow optimum functioning of the venting
system.
• Models P230, P230D, P461 and P461D must be filled to
within 1 inch [25 mm] of the top plate.
5.3 Adding Oil to the Pump
WARNING
Always add oil with cylinders fully retracted
(extended if pull cylinders) or the system will contain more
oil than the reservoir can hold.
Add oil as described in the following steps:
1. Remove oil fill plug from reservoir.
2. Determine if your pump has a vented or non-vented
reservoir. Refer to Table 2 earlier in this manual.
3. Add oil to the reservoir as required. Refer to oil fill
information in Section 5.2.
4. Reinstall oil fill plug after adding oil.
5. Remove air from system if necessary, as described in
Section 4.6.
6. Recheck oil level after removing air.
5.4 Keeping Oil Lines Clean
When coupler halves are disconnected, always install
dust caps. Use every precaution to guard unit against the
entrance of dirt, because foreign matter may cause pump,
cylinder, or valve failure.
N86 W12500 Westbrook Crossing
Menomonee Falls, WI 53051
Phone: 1 (262) 293-1575
Fax: 1 (262) 597-1127
Toll Free: 1 (800) 323-9114
www.tksimplex.com
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