Troubleshooting Guide - Lincoln 85562 Manuel

Troubleshooting Guide

Grease fl owing from the relief valve and going
back to tank
This is due to a high pressure in the outlet line, caused by
blockage of the pump outlet or too high of a viscosity grease
used in cold weather.
Check:
• The grease ¿ lter, item #20 (Illustration 2), on the outside
of the reservoir/controller cabinet. The ¿ lter element
may be clogged. Replace the ¿ lter element.
• The master block. Remove the outlet lines one by one
from the master block and run the pump. If remov-
ing one of the distribution block outlet lines solves the
problem, the blockage exists in the wiper bar valve fed
by the removed line. The wiper bar valve needs to be
replaced.
• If removing the two outlet lines does not solve the prob-
lem, loosen the hose ¿ tting feeding the master block. If
the grease pumps out of the supply line without causing
the relief valve to open, then replace the distribution
valve.
• If the relief valve still opens, replace it.
Pump will not run
Pump does not run when the red manual lube button is de-
pressed (See photo)
• Check the battery voltage. If the voltage is below 23 VDC,
the solar panel power regulator will turn off the pilot circuit
voltage. (The red light on the solar controller labeled "Load
Disconnect" will come on.) Check to see if the solar panel is
functioning.
• If the solar panel is functioning, check the batteries and bat-
tery terminals. This unit was supplied with sealed batteries
that do not require water.
• Check the pilot circuit fuse (below Manual Lube Button in
Figure 19.). Look for the source of the overload if this fuse
is blown.
• Check the power circuit breaker (below Power Switch in
Figure 20C). If it is tripped, check the pump for jamming or
for a high-pressure condition. Also check the pump motor
for grounded wiring.
• Check pump relay to see if the solenoid coil winding has
power applied to it when the manual lube button is de-
pressed. If the above checks were made ¿ rst and there is
no power at the relay coil wires, check the function of the
manual lube. If it has power, then jump out the relay switch
(Item 74, Illustration 5) to see if the pump starts. Replace
the relay if the pump runs when the power is jumped, and if
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the relay coil is getting power.
Pump does not run when the number of counts at the sensor is
reached, but will run using the manual lube button
• Check the track sensor by bringing a piece of steel near the
sensor with the power on while looking at the sensor indica-
tor light. If the sensor light comes "on" and "off" to indicate
the presence of the steel, it is functioning properly. If not,
check the sensor cord or the sensor itself for damage.
• Check the yellow sensor light on the control panel.
If the light is constantly "on", then the steel rail or other
metallic object is being detected. Re-adjust the sensor.
• If the sensor functions but the pump is not running as a
result, replace the timer module and recheck.
Pump runs, but no grease is dispensed
• Check the grease level in the reservoir and ¿ ll if empty
• Look for a break in the supply hose or feed line to each
wiper bar.
• Check that the relief valve is not open by running the pump
with the grease return line disconnected from the reservoir.
• Check to insure that the grease output from the pump is not
leaking to the back of the wiper bar
• Check for vapor lock by removing the grease supply hose
at the reservoir and running the pump until grease À ows
freely from the outlet
• If no grease pumps out of the open supply hose ¿ tting at
the reservoir, remove the pump and check to see if the
pump inlet is blocked.
• If all of the above has been done and the pump still will not
pump grease, there is a mechanical pump problem requir-
ing dismantling. The problems include foreign material
holding open a pump check, worn seals, or a faulty pump
check valve.
Page Number - 13
800-999-7378