Method For Reversing Automatic Operation Fan; Method For Cleaning Fin With Compressed Air - Komatsu H75051 Operation & Maintenance Manual

MAINTENANCE PROCEDURE

METHOD FOR REVERSING AUTOMATIC OPERATION FAN

For the automatic reverse rotation of the fan, see "RADIATOR FAN AUTOMATIC REVERSE MODE (3-61)".
REMARK
• When the fan rotation direction is switched, the fan reverse rotation pilot lamp flashes.
After a heavy load operation, the fan rotation direction may not change to protect the machine.
Set the engine speed to low idle and wait until the oil and coolant temperature goes down before operating
the switch.
• In a cold circumstance, perform the cleaning by Fan Reverse Mode within less than 5 minutes.
If the fan reverse rotation is performed for a long time, DEF hose may freeze.

METHOD FOR CLEANING FIN WITH COMPRESSED AIR

When opening fan guard, stop the engine, and display warning tag on multifunction mono-lever.
METHOD FOR CLEANING FINS WITH REAR GRILLE OPENED
1.
Open the rear grille (1).
2.
Push the lever (2) lightly to the right and open the fan
guard (3).
4-30
k k
WARNING
MAINTENANCE