Komatsu Galeo PC27MR-2 Operation & Maintence Manual page 97

OPERATION
Check Oil Level in Hydraulic Tank, Add Oil
The parts and oil are at high temperature immediately 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 position 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 details, see
"COOLING COVER (PAGE 3-29)".
3. Confirm that the oil level is between the H and L marks of sight
gauge (G).
NOTICE
Do not add oil above the H line. This will damage the hydraulic 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, open the dirt cover, move the
cover on top of oil filler port (F), then add oil through oil filler port
(F).
REMARK
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))
MACHINE OPERATIONS AND CONTROLS
WARNING
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