Komatsu PW160-7H Operation & Maintenance Manual page 149

OPERATION
REMARK
If breather holes (1) on the cap is clogged, the pressure in the
tank will drop and fuel will not flow.
Clean the holes from time to time.
CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL
When removing the oil filler cap, oil may spurt out, so
●
turn the cap slowly to release the internal pressure
before removing the cap.
If oil has been added to above the H mark, stop the
●
engine and wait for the hydraulic oil to cool down, then
drain the excess oil from the drain plug (P).
1. If the work equipment is not in the condition shown in the dia-
gram on the right, start the engine, run the engine at low
speed, retract the arm and bucket cylinders, then lower the
boom, set the bucket teeth in contact with the ground, and
stop the engine.
2. Check sight gauge (G). The oil level is normal if midway
between the H and L marks.
NOTICE
Do not add oil if the level is above the H line. This will
damage the hydraulic equipment and cause oil to spurt out.
3. If the level is below the L mark, remove cap (F) from the
hydraulic tank and add oil.
For details of the oil to use, see "USE FUEL, COOLANT
AND LUBRICANTS ACCORDING TO AMBIENT TEMPER-
ATURE (232)"
REMARK
The oil level will vary depending upon the oil temperature
Accordingly, use the following as a guide:
Before operation: around midway between H and L
●
(Oil temperature 10 to 30°C)
Normal operation: around H level
●
(Oil temperature 50 to 80°C)
PW160-7H VEAM390100
WARNING
OPERATION
1
F
G
P
149