Troubleshooting A Blockage - Lincoln Quicklub Maintenance Manual

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Troubleshooting a Blockage in Lincoln Quicklub Systems
Description
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In a Lincoln Quicklub Lubrication System, free flow of lubricant from the pump through the
transmission system and the bearings is necessary. If any portion of this transmission system (a divider
valve, line fitting or any bearing) does not freely accept and pass its portion of the lubricant a blockage
has occurred. This blockage will cause a higher than normal pumping pressure to be developed by the
pump. Depending on the application or system design, this blockage with its resultant high pump
pressure will usually cause a complete loss of lubricant flow into the total system and no bearing will be
receiving lubricant. The loss of flow due to a blockage is first indicated with the higher than normal
system pressure that is developed by the pump as it attempts to overcome this blockage. The
standard pressure relief valve (270864) is rated for 3900 psi.
This abnormally higher pressure that is a result of a blockage is limited, isolated, and signaled through
the use of various performance indicators, reset and relief, incorporated into the system design.
If a blockage exists in a Quicklub lubrication system it is caused by one of the following reasons:
(1) Crushed transmission line in the System.
(2) Blocked bearing in the system.
(3) Improperly drilled fitting in the system.
(4) Blocked divider valve in the system.
(5) Clogged pump element
All servicing and disassembling should be carried out under the cleanest conditions possible. A
blockage in a Quicklub system will be indicated by the fault light and by the pump element relief
indicator, exhausting lubricant to atmosphere. Before proceeding as outlined, make a visual inspection
of the system and check for crushed lines or improper
divider valve installation. Verify that each divider valve
outlet required to discharge lubricant can do so and that no
plugs have been installed in an outlets one and two of any
valve.
Pressure Relief Valve mounted to pump
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2/13/09