Komatsu PW160-7K Series, Operation And Maintenance Manual

Page: 257 / 358

MAINTENANCE SERVICE PROCEDURE
257
CHECKING COOLANT LEVEL
REMARK
Check the coolant level before starting the engine.
1. Check the coolant level in the radiator reserve tank (5). The
coolant level should be between the FULL and LOW mark-
ings on the tank.
2. If coolant must be added, remove the reserve tank cap (4)
and add coolant until level is between the FULL and LOW
markings on the tank.
DRAINING THE SYSTEM
WARNING
●
Before working on the engine or electrical system, dis-
connect the negative (ground) battery cable. Tag the
cable and controls to warn against starting.
●
Wear hand and eye protection when draining hot fluids.
1. Run the engine until it reaches operating temperature then
stop the engine.
2. Remove the radiator cap as outlined in this section.
3. Remove the undercover. Place a container below drain plug.
4. Remove the coolant drain plug located on the bottom of the
radiator (1).
5. Allow the system to completely drain into the container.
Do not let drain outlets clog up during draining.
6. Fit the radiator drain Plug (1)
7. Replace undercover.
Full
Low