Troubleshooting
333546B
23
NOTE:
Images may include optional equipment.
Troubleshooting
Review the Troubleshooting Table below. For additional service, refer to the Graco Website, www.Graco.com and/or
contact your Graco Distributor.
Problem
Solution
Pump does not power on.
Verify the equipment battery is connected and the key is in the ACC position. Check
wiring to the G3 pump and GLC2200 Controller is correct. See Wiring, page 18.
GLC2200 Controller or G3 pump is in
alarm mode. System does not
operate.
Hold down the fault clear button on the GLC2200 or G3 pump for 3 seconds to clear
the fault and begin the OFF Time countdown.
GLC2200 Controller is in fault mode
and display shows ER:LL or G3
Pump is in fault mode and the LED
next to the Low Level Fault is lit.
G3 Pump reservoir is empty and requires refilling. After reservoir is filled, press and
hold the reset button on the GLC2200 or G3 pump for 3 seconds.
GLC2200 alarm sounding during
machine operation.
To silence the alarm until service can be rendered, press the reset button for 1
second; then release the button. This will silence the alarm but maintain the lube
system in alarm mode until serviced.
GLC2200 Controller or G3 pump in
fault mode. ER:Cy displays.
The lubrication system failed to complete a lube event in the time allowed to run.
Verify controller is programmed correctly. In colder temperatures, it may be
necessary to increase standard run time to complete the lube cycle.
If the first solution does not correct the problem, run a manual cycle and check the
pump relief valve for discharged grease. The grease pressure is at 4000 psi (27.58
MPa, 275.8 bar) when the relief valve discharges. If grease has discharged from the
relief valve, a bearing may have stopped taking grease, a hose may be
compromised, or the CSP valve may be clogged.
Inspect CSP divider valve hoses for damage and/or leaks. Replace hoses if
needed. If hoses are not compromised, use a manual grease gun to verify the
valves are accepting grease.
If the CSP valve fails to accept grease; the valve may be clogged and need to be
replaced or the bearing point is refusing to accept grease. Repeat steps for
remaining CSP valves until the blockage is found.
The CSP valves refuse to accept
grease.
Verify that the CSP valves have not been over-torqued to their required
specification. If they have been over-torqued, valve performance can be
compromised. Adjust the valve assembly.
Bearings are not receiving enough
grease.
Reduce the OFF Time on the controller. This will increase the frequency of the lube
events and increase the amount of grease the bearings receive throughout the day.
Alternative setting = 45 minutes = 30% increase, 40 minutes = 50% increase, 30
minutes = 100% increase.
GLC2200 Controller or G3 pump will
not run programmed time.
Verify you are programming the hours, minutes, and second correctly. Refer to the
GLC2200 or G3 pump instruction manual.
There is a broken hose in the
lubrication system.
Replace broken hose. See Assemble Hose Fittings instructions on page 7. The
original kit included extra hose and fittings. If you do not have spare hose and
fittings to assemble a replacement hose, contact your Graco Distributor for
assistance with ordering new parts.