HARBEN Eliminator VanPack, Руководство по эксплуатации и техническому обслуживанию

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4.7. Rapid Shutdown
Should any unforeseen circumstances arise, including any signs of a leak, the jetting operation
should be terminated immediately, the equipment shut down, and the relevant managers
informed.
4.8. Automatic Shutdown
The engine will shut down automatically if the monitoring and control system detects a
malfunction. Possible reasons for an automatic shutdown are detailed in Section 6 - Fault
Finding.
4.9. Hose Reel Winding and Unwinding
The high-pressure hose is manually unwound and hydraulically wound by an OMR315
hydraulic motor, which is driven by a gear pump from the engine P.T.O. (H&S Section 6)
The motor is fitted to the hub of the hose reel. The motor speed and direction are controlled
via a manually actuated spool valve. (018-005 “Hydraulic Directional Control Valve” CV1185
c/w 90- 100psi relief and flow control)
The hose reel motor speed can be adjusted up and down by a flow control knob. Pushing the
lever inwards towards the pump set will wind the hose reel in.
The normal practice is to unwind the hose by hand, only drawing off the required length of
hose to reach the work site and then to wind the hose back in using the hydraulic motor.
It should be remembered that the hose cannot be wound using the hydraulic motor unless the
engine is running. Therefore, when a jetting operation is finished, wind in the hose before
shutting down the engine. Wind in the hose before you intend to empty the tank.
CAUTION! If the hose becomes stuck in the drain the hydraulic hose reel should NOT
be used as a winch to try and free it and the towing vehicle should NEVER be driven away to
drag the hose clear. This will put severe strain on the reel framework which could lead to
serious damage. (H&S Section 3, 6, and 13)
Hoses that have become stuck can sometimes be pulsed free using the Jump Jet kit or
alternatively they should be pulled free by hand.
NOTICE: The hose should NEVER be tightly wound onto the hose reel drum when the hose is not pressurised,
as might occur when the hose has become trapped. A tightly wound hose can easily crush the hose reel when it
is next pressurised. If you have reason to believe that the hose may have been tightly wound onto the reel when
unpressurised it should be completely unwound and then rewound loosely before pressurising.