Komatsu Utility 15001, Operation & Maintenance Manual

Page: 97 / 234

MACHINE OPERATIONS AND CONTROLS
95
CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL
WARNING
• The parts and oil are at high temperature after the engine is stopped, and may cause burns. Wait for the
temperature to go down before starting the work.
• When removing the oil filler cap, turn it slowly to release the internal pressure, then remove it.
1. If the work equipment is not in the condition shown in the
diagram on the right, start the engine, run the engine at
low speed, retract the arm and bucket cylinder rods fully,
then lower the boom, set the bucket teeth in contact with
the ground, and stop the engine.
2. Open the engine rear cover and cooling cover. For de-
tails, see Section "3.2.10 COOLING COVER".
3. Confirm that the oil level is between the H and L marks of
sight gauge (G).
IMPORTANT
• Do not add oil above the H line. This will damage the hy-
draulic circuit or cause the oil to spurt out.
If oil has been added above the H level, stop the upper
structure so that the drain plug (P) under the hydraulic
tank will be between both tracks, and stop the engine
and wait for the hydraulic oil to cool down, then drain
the excess oil from drain plug (P).
4. If the oil level is below the L mark, remove the filler cap
(F), then top up and close.
NOTE
• The oil level will vary depending upon the oil temperature.
Accordingly, use the following as the guide:
Before operation: around L level
(Oil temperature 10 to 30°C (50 to 86°F))
Normal operation: around H level
(Oil temperature 50 to 80°C (122 to 176°F))