OPERATING CONTROLS AND PROCEDURES RT9150E OPERATOR MANUAL
3-74
Published 2-23-2017, Control # 644-00
When overridden, the shutdown of the anti two-block switch
is cancelled and the crane operation is no longer completely
monitored.
You can only override the anti two-block switch together with
the RCL.
The lamp (1) lights up if the anti two-block switch has been
triggered.
At the same time, all movement which increases the load
moment are switched off; lifting, lowering, extending and
adjusting the boom extension.
To cancel the shutdown, leave the shutdown range by
performing a different crane movement or by setting down
the load.
To override the lift limit switch:
1. Insert the key into the key-operated switch (2).
2. Turn the key counter-clockwise and hold.
The anti two-block switch and the RCL are overrid-
den until you let go of the key.
If the anti two-block switch is triggered now, crane movement
is stopped once and the lamp (1) flashes.
Crane movement is enabled again if you bring the control
lever to zero position and then move it again.
Crane movement will not be stopped again.
The lamp (1) goes out:
- if you let go of the key-operated switch (override
cancelled) or
- if you leave the shutdown range.
WARNING
Two-Blocking Hazard!
The anti-two-block override switch should be used with
caution. The operator must ensure two-blocking doesn’t
occur when the override is activated.
If the anti-two-block switch is overridden, crane operation
is no longer completely monitored; when hoisting the anti
two-block switch weight, crane movement will be stopped
once. After moving the control lever again, the crane
movement is then enabled and the anti-two-block switch
is overridden.
Reference Only