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Maintenance instructions
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DINO 260XTD
RL1
Change-over relay on the timer card, switches the voltage supply over from either
the power supply unit or from the battery, depending on whether the power supply
unit is feeding power to the system or not.
RL2
Mains relay on the timer card, controls and switches on and off the mains current of
the control system.
SR2
Safety relay monitoring operation of the outriggers.
The safety relay resets as soon as all the outrigger safety limit switches (RK11,
RK12, RK13 and RK14) have closed. After that it is possible to operate the boom.
SR3
Safety relay, which monitors the outreach to the side. Safety limit switches RK5 and
RK4 controlling operation of the safety relay.
Overloading of the boom: SR3 trips. The safety relay is automatically reset upon
return to the normal outreach range after an overloading situation.
If either the RK4 or the RK5 has failed: The safety relay SR3 trips as soon as
the operating range of the RK5 has been exceeded. The safety relay will not
automatically reset upon return to the operating range of the RK4, and hence the
operation of the electric appliance must be checked.
SR4
Safety relay for the emergency stop; stops the motors and switches off the control
voltage from the boom/chassis selector valve. The relay will trip, if the emergency
stop button S1 or S4 or the chain limit switch RK7 or RK15 cuts off the control circuit
for the relay.
SR5
Safety relay for the outriggers; prevents the operation of the outriggers, if the limit
switch RK3 for the boom is not closed. The relay cuts off the control voltage from the
selector valve (1A) for the chassis and the selector valve (9B) for the outriggers.
Main electric cabinet (LCB), switches
S1
Locking emergency stop switch. Stops all other functions except the emergency
descent and the sound signal, which remain operational. Controls the safety relay
SR4.
S6
Start and stop switch for the combustion engine. Operates only, if the mains current
is not connected.
S8
Selector switch for the speed of the boom movements.
Position 0: boom movements impeded
Position 1: slow boom movements
Position 2: boom movements at full speed
S11
Start switch for the emergency descent, yellow pushbutton.
S16
Turning the boom to the left and right, lever switch (also emergency descent).
S17
Lifting and lowering the boom, lever switch (also emergency descent).
S18
Retracting and extending the telescope, lever switch (also emergency descent).