DINO 260XTD
71
19 FAULT FINDING
FAULT REMEDY
1. No voltage supply to the control centre
No voltage supply to the timer card. The main battery fuse F1 has blown, replace the
fuse. Mains switch turned off, turn on the switch.
Check the fuse F6. The timer card cannot be activated.
Check, that the key-switch is in position 1.
No voltage feed through the timer card. Check the fuse F2 on the timer card.
2. None of the platform movements is operational though the electric motor is running and the
selector switch is in position 1
Green signal light for outriggers is not lit. Check operation of the safety limit switches
RK11, RK12, RK13 and RK14.
The green signal light for the outrigger limit
switches is lit, but the boom movements do not
operate.
Check the operation of the safety relay SR2 for
the outrigger circuit.
The outreach range of the boom exceeded. Retract the telescope, using pushbuttons S31 or
S32, until the platform returns to its normal
operating range.
3. Outriggers do not move
Boom does not rest on the transport support. Drive the boom onto the transport support.
Limit switch on the boom support is not closed. Drive the boom onto the transport support and
check the operation of the limit switch RK3.
4. Platform turn is not operational
Automatic fuse F10 has tripped. Reset the automatic fuse with the reset button.
5. The electric motor does not start
The key-switch is in wrong position. Turn the key-switch to position of desired
operating loaction.
Emergency stop button is stuck. Pull up the button and re-start the engine by
actuating any of the control movements.
Fuse F3 blown. Replace the fuse (10A).
No mains supply (230VAC) to the voltage meter. Check the fault current switch, extension cords,
possible distribution boards and fuses.
The fault current safety switch has tripped. Reset the fault current switch.
Either of the telescope chain limit switches RK7
or RK15 has cut off the contactor circuit.
Check the operation of the RK 7 and the RK15
and readjust them acoording to the instructions
(see point ”Regular servicing”).
The safety relay SR4 is not automatically reset With reference to electric diagrams, check the
operation of the safety relay.
Check, whether the fault is in the electric system or in the hydraulic system.
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