Komatsu 730E - Page 138

Maintenance - Section 42 07/09 0M4211
Page 42-16 Automatic Lubrication System
PROBLEM POSSIBLE CAUSES SUGGESTED CORRECTIVE ACTION
Pump Pressure Builds
Very Slowly Or Not At All.
No signal at solenoid. Check timer.
Controller Does Not
Operate.
No electric power to controller.
Turn on electric power to pump. Power
LED must light, pump on LED must light
when manual lubrication is pressed.
Pump On LED Lights, But
Load Connected To
Terminals 3 & 4 Will Not
Energize.
Printed circuit board failure. Remove and replace.
Load Connected To
Terminals 3 & 4
Energized, But Pump On
LED Does Not Light.
Printed circuit board failure or key-
pad failure.
Remove and replace.
Bearing Points
Excessively Lubricated.
Controller memory mode is off. Switch controller memory mode to on.
Injector output adjustment setting
too high.
Readjust to lower setting.
Bearing Points Are Not
Sufficiently Lubricated.
Timer/controller cycle time setting
too low.
Set to longer cycle time or re-evaluate
lubrication requirements.
Injector output adjustment setting
too low.
Readjust injector output setting.
Timer/controller cycle time setting
does not deliver lubricant often
enough.
Set to shorter cycle time or re-evaluate
lubrication requirements.
System too large for pump output. Calculate system requirements per
planning manual.