18
Power Pack
Fully integrated pump, tank, preset relief valve and return filter. The biggest cause of
hydraulic problems is down to contaminated oil. Change oil and filter at least every 6
months, even though the hydraulic system is a closed system. The only access for
external dirt is through the filter breather. You will have contamination due to seal kit wear
(black sludge in the bottom of the tank, mechanical wear from the gear pump, valve block
and cartridges in addition to water contamination due to tank condensation. See power
pack section for more details.
SOL1
This valve diverts oil from the outrigger control valve first to the ground control valve and
then to the basket control valve. Never operate the coil unless it is on the valve cartridge.
You risk burning out the coil.
Ground Control Valve
This gives you full control over all functions apart from the basket slew. The adjustable
relief valve is set at the factory to approximately 190 bar. It should be set so that when you
lift the bottom boom from rest you can just lift the full safe working load (SWL). The centre
position is closed to prevent oil back feeding and running back to tank when operating the
basket controls.
Slew Motor
The slew motor is bolted directly on the slew gear. Apart from greasing and checking for
oil leaks it requires no maintenance.
Battery 24Vdc
RED LINES = Pressure
GREEN LINES = Tank (return)
MAINTENANCE PROCEDURE
To Next Page
Loading...
