MAINTENANCE
3-28 WB140-2N, WB150-2N
CHECKING HYDRAULIC SYSTEM OIL
LEVEL
The oil level must be visible through gauge (1) positioned on the tank
and must be filled between MIN. and MAX. marks.
If level is near the MIN. mark, top off by adding the prescribed hydrau-
lic oil, see “FUEL, COOLANT, AND LUBRICANTS” on page 3-7,
through filler (2). Reinstall the filler cap. Use a 24 mm hexagon wrench.
• The oil level in the hydraulic system must be checked
with cold oil and the machine positioned on level ground
and in lubricating position. (See fig.).
• If it is necessary to top off, stop engine and then elimi-
nate the residual pressures present in the work equip-
ment (move the controls more than once) and in the tank
by slowly loosening filling cap (2).
• When adding oil, do not exceed the MAX level. This
would damage the hydraulic system and cause oil to
flow out.
• If a constant or abnormal decrease of the oil level is
observed, thoroughly check the hydraulic system, the
pistons and pump for leaks.
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