MAINTENANCE PROCEDURE MAINTENANCE
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9. Add the specified amount of hydraulic oil through oil filler
port (F). When adding the oil, watch sight gauge (G), and
check that the oil is at the correct level.
Do not add oil above the correct level. This may damage
the hydraulic circuit and cause the oil to spurt out.
Check that the hydraulic oil is at the correct level as follows.
q When the hydraulic oil is at normal temperature (15 - 30
°C), the correct oil level is in blue range (a1) or (a2) on the
gauge label shown in the diagram on the right.
q When the hydraulic oil is at high temperature (50 - 80 °C),
the correct oil level is in red range (b1) or (b2) on the gauge
label shown in the diagram on the right.
Correct level check chart
Working posture
[see scale plate (A)]
Applicable scale
Normal temperature High temperature
(1) (a1) (b1)
(2) (a2) (b2)
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