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Hydraulic oil
Ensure the
hydraulic system is kept clean. Be careful when refilling tank. Do
not direct high pressure hose at filler/breather cap. Oil level
should be kept to top of level/temperature gauge. Use good quality,
clean hydraulic oil for topping up only ( I.S.O VG 68 ). Do not use
universal oils. The oil should always look clear and clean - If there
are any signs at all of cloudiness or "milkiness" the oil
should be changed.
Oil filter
Change return line
filter when indicator on filter unit turns red or at least every 12
months. If excessive oil contamination is evident the oil should also
be changed and the suction filter (inside tank) should be removed and
washed out. If this filter is removed ensure that no contamination
gets inside the suction pipe or into the inside of the filter. NB some
machines may be fitted with a pressure guage instead of a red/green
indicator. - Return line pressure should not exceed 20 p.s.i.
Oil cooler
If an oil-to-air
cooler is fitted in front of the engine radiator, ensure that it is
kept perfectly clean along with the radiator behind it at all times.
Failure to do so will lead to overheating of the hydraulic and/or
engine cooling systems.
Air Cleaning System
The Stealth is
fitted with a Filter Minder air restriction indicator. This has a
scale which shows when the air cleaner is getting dirty. It is fitted
on the side of the air filter assembly. It is reset by pressing the
rubber button on the end of the indicator. Avoid opening the air
filter assembly until the gauge indicates 18’’ air
restriction. Service BEFORE the yellow indicator reaches the red line.
When the air
filter element does need servicing, replace it with a new one. Do not
attempt to clean it. The condition of the air intake hoses should be
checked regularly for signs of wear or damage and should be replaced
if necessary.
Dump Valve
The dump valve is
situated on the end of the filter housing (see right). Squeeze the
valve open to release any accumulated particles every 50 hrs. |
5.
Hydraulic filter condition indicator
