G - Swing Controls; G1. Swing Park Switch; G2. Swing Handle; G3. Swing Holding Brake Switch - Manitowoc 18000 Operator's Manual

OPERATING CONTROLS AND PROCEDURES
G1
G – Swing Controls
See Figure 3-12 for the following controls.
NOTE: Swing lock is not available on current production.
The swing drive has a spring-applied, hydraulically-released
disc brake and swing lock for each swing motor.
• The swing brakes are released and the swing locks are
disengaged during normal operation.
• The brakes apply automatically if power is lost, when the
swing holding brake switch is activated, and when swing
park is turned on.
• The swing locks are engaged when park is turned on.
The swing and travel alarm sounds to warn personnel when
the upperworks is swung.

G1. Swing Park Switch

Press TOP of rocker to TURN ON swing park. With park on,
the swing handle is inoperable, the swing brakes are applied,
and the swing locks are engaged.
Press BOTTOM of rocker to TURN OFF swing park. With
park off, the swing handle is operable, the swing brakes are
released, and the swing lock is disengaged.

G2. Swing Handle

The dual-axis handle allows swing system and boom hoist or
luffing jib to be operated at the same time with one handle.
Move handle to LEFT to SWING LEFT. Swing speed
increases in relation to handle movement.
3-30
G2
G3
3-107
Move handle to RIGHT to SWING RIGHT. Swing speed
increases in relation to handle movement.
Release handle to CENTER to STOP. Swing speed
decreases to off and the upperworks slow to a stop. Move
handle in opposite swing direction to stop the swing motion
faster.
Press swing holding brake switch to hold the stopped
upperworks in position.

G3. Swing Holding Brake Switch

Use the swing holding brake switch (black button on side of
handle) to hold the upperworks in position for short periods
of time during the operating cycle. The swing brake will apply
and the swing handle will be inoperable while the switch is
pressed.
PRESS button to APPLY swing holding brake.
RELEASE button to RELEASE swing holding brake.
Published 12-05-17, Control # 032-23
H3
CAUTION
Swing Drive/Boom Damage!
Do not apply swing holding brake or turn on swing park
while swinging; brake will bring upperworks to an abrupt
stop. This action could cause damage to boom from side
loading or damage to swing drive from shock loading.
Bring upperworks to smooth stop with swing handle and
then apply swing holding brake or turn on swing park.
18000 OPERATOR MANUAL
H1 H2
3-102
H4
H5
3-104
FIGURE 3-12