Komatsu 830E-AC Shop Manual page 1038

TROUBLE
Pump Pressure Builds
Very Slowly Or Not At All
Controller Does Not
Operate.
"PUMP ON" LED Lights,
But Load Connected To
Terminals 3 & 4 Will Not
Energize
Load Connected To
Terminals 3 & 4
Energized, But "PUMP
ON" LED Does Not Light
Bearing Points
Excessively Lubricated
Bearing Points Are Not
Sufficiently Lubricated
P3-14
POSSIBLE CAUSES
No signal at solenoid.
No electric power to controller.
Printed circuit board failure.
Printed circuit board failure or key-
pad failure.
Controller memory mode is to OFF.
Injector output adjustment setting
too high.
Timer/controller cycle time setting
too low.
Injector output adjustment setting
too low.
Timer/controller cycle time setting
does not deliver lubricant often
enough.
System too large for pump output.
Automatic Lubrication System
SUGGESTED CORRECTIVE ACTION
Check timer.
Turn on electric power to pump.
"POWER" LED should light, "PUMP ON"
LED should light when "MANUAL LUBE"
is pressed.
Remove and replace.
Remove and replace.
Switch controller memory mode to ON.
Readjust to lower setting.
Set to longer cycle time or reevaluate lube
requirements.
Readjust injector output setting.
Set to shorter cycle time or reevaluate
lube requirements.
Calculate system requirements per plan-
ning manual.
P03030