36
HYDRAULIC SYSTEM
OIL SUPPLY
Check the oil level in the reservoir daily.
No fixed time period can be quoted for oil changes as operating conditions and
maintenance standards vary so widely. Burnt and scorched oil odours and the oil
darkening and thickening are all signs of oxidation and indicate the oil should be changed.
Moisture that results from condensation can become entrapped in the oil and cannot be
removed by filtration so that water contamination is progressive.
Contamination can be reduced by:
Cleaning around the reservoir cap before removal, and keeping that area clean.
Using clean containers when replenishing the system.
Regular servicing of the filtration system.
FILTRATION MAINTENANCE
The machine is protected by a 125 micron suction strainer and a low pressure 10 micron
full flow return line filter.
Suction strainer
The strainer is permanently fixed within the reservoir.
Should symptoms of pump cavitation or spongy intermittent operation occur the tank
must be drained and flushed out with a suitable cleaning agent e.g. clean diesel oil
Return Line Filter
The elements should be changed after the first 50 hours and thereafter at 500-hour
intervals. It is important to note hours worked as if the filter becomes blocked an internal
by-pass within the canister will operate and no symptoms of filter malfunction will occur
to jog your memory.
