OPERATING CONTROLS AND PROCEDURES MLC165-1 OPERATOR MANUAL
3-40
Published 08-06-19, Control # 237-09_v1
Swing Operation
NOTE The following is only a very basic description of
swing operation. All operators must be fully
qualified and experienced before operating the
crane.
1. Turn off the swing park switch.
2. Increase engine speed to the desired rpm with the hand
throttle. Press the foot throttle to momentarily increase
engine speed when more power is required.
3. Push the swing handle to the left to swing left or pull the
handle to the right to swing right (see Figure 3-10)
.
4. Start the swing motion with a smooth acceleration.
Continue the handle motion to swing at the desired
speed.
NOTE Adjust the swing speed and torque, as required, in
the main display Function Modes screen. See the
MLC165-1 Main Display Operation Manual.
If equipped with the optional swing limit assembly,
program the desired automatic swing stops in the
swing function modes screen.
5. To stop swinging, release the swing handle. The swing
speed will decrease and the rotating bed will coast to a
stop.
If a faster stop is desired, move the swing handle past
center to the opposite swing direction.
6. Once the rotating bed stops, apply the swing holding
brake to hold the rotating bed in position for short
periods during the operating cycle.
To keep the rotating bed held in position for long
periods, turn on the swing park switch.
WARNING
Crane Tipping Hazard
Prevent the crane from tipping. Adhere to any swing
limitations given in the capacity charts.
WARNING
Moving Crane Hazard
The counterweights can strike personnel in the area of the
swing path.
Warn personnel to stay clear of the swing path. Sound the
horn prior to swinging.
Figure 3-10. Swing Control Handle
DANGER
Avoid Boom/Swing Drive Damage
Do not apply the swing holding brake or turn on the swing
park switch while swinging. The brake will bring the
rotating bed to an abrupt stop. This could cause extensive
damage to the boom from side-loading or damage to the
swing drive from shock-loading. This equipment failure
could result in serious injury or death.
Before applying the swing holding brake or turning on the
swing park switch, bring the rotating bed to a smooth stop
with the swing handle.
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