Operating instructions
78 Dump body, emergency lowering
Dump body, emergency lowering
Operation of the dump body, i.e. tipping and lowering, is controlled
with servo pressure.
If the engine should stop with the dump body in the raised position
and the starter motor, for some reason, does not work, there will
be no servo pressure for operating the tipping valve and the dump
body must be lowered manually. The emergency lowering bolt is
located on the tipping valve, which can be accessed through a
service hatch in the cab floor.
Then the dump body can be lowered in the following way:
1 Open the service hatch under the mat behind the operator's
seat.
2 Loosen the lock nut and screw in the bolt on the tipping valve.
NOTE! The bolt can be turned approx. 8–9 turns before
activating the tipping valve spool (count the number of turns).
Continue to turn the bolt so that it displaces the valve spool
to the lowering/floating position (lowering without pressure).
3 This will cause the dump body to slowly lower unless it is near
its top position and the machine is leaning backwards. In this
case the dump body needs assistance to lower from an
excavator or a loader that lifts at rear edge of the dump body.
4 Restore the bolt to its original position and lock with the nut.
5 Reinstall the service hatch.
WARNING!
Use the greatest caution when carrying out emergency
lowering, as it is not possible to place the machine in
service position.
V1061978
Operator's position during emergency
lowering
A
1
A
A Bolt on tipping valve
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