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MAINTENANCE
1.
Bring plug (P) to the lowest position.
2.
Place a container under plug (G) to catch the drained oil.
3.
Remove plug (G) with the hexagonal wrench.
4.
Check the oil level.
The oil level should be near the lower edge of the hole of
plug (G).
5.
If the oil level is low, remove plug (F) with the hexagonal
wrench and add oil.
Add oil until it overflows from the hole of plug (G).
6.
After checking, tighten plugs (F) and (G).
METHOD FOR CHECKING FAN BELT TENSION AND REPLACING FAN BELT
•
The opening and closing (tilting) operation of the floor is necessary when performing this mainte-
nance, and it may cause serious personal injury or death.
Before opening and closing of the floor, thoroughly read , and then start the operation, or ask your
Komatsu distributor to perform the work.
•
Immediately after the engine is stopped, its parts and oil are still very hot and may cause burn in-
jury.
Wait for the temperature to go down, and then start the work.
1.
Pull the engine rear cover (1) backward to open it.
Open the engine rear cover (1) fully and it is secured by
rod (2).
2.
Check the fan belt tension.
Press the belt with a finger at a point midway between the
crank pulley and fan pulley. (approximately 98 N {approxi-
mately 10 kg} )
If deflection is in the standard range (9 to 13 mm), the fan
belt tension is correct.
k
k
WARNING
WENAM00150
MAINTENANCE PROCEDURE
4-53
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