RUTHMANN 27409, Operating And Maintenance Instructions Manual

Page: 168 / 261

7 Emergency control system
(Emergency Lowering)
7-6
RUTHMANN-Steiger
®
TB270
BA.GB.12-27409-05-07-FTA-jr
2. Ball cock
(in switch box).
3. Solenoid arresting device
(in switch box).
tion of stabilising jacks and for rotation
of boom (under cover, on the left-hand
side).
5. Way valves for control of boom and of
working cage (behind cover).
Emergency lowering by means of emergency control system in extreme
cases (

chapter 4.3 ). All movements of the Ruthmann-Steiger can be
carried out by manual operation of the valves.

Switch off ignition.

Main switch onto position „OFF“.

Open switch box (emergency control) at Steiger-substructure by means
of a key.

Release butterfly nuts of covers of the way valves and remove or fold
the covers downwards respectively.

Remove solenoid arresting device out of the support in switch box at
Steiger-substructure.

Bring lever of ball cock (switch box) into horizontal position.

Move boom into its basic position (

chapter 6.5 ).
Danger!
For reason of stability it is absolutely necessary to
retract the telescope completely first before lowering
the boom. Especially when the unit is jacked unilater-
ally or within the vehicle’s profile only pay attention
that the boom is not lowered on that side where the
jacks are only driven out within the vehicle’s profile.
Danger of tilting. In that case its is imperative that the
boom is rotated to its centre (middle) position before
it is lowered.
Attention!
In order to avoid a breaking of cables and hoses, al-
ways move the boom back into that direction, from
which the position had been driven to.
Note

Retract telescope completely as first step.