Third Edition • First Printing Operator's Manual
Controls
Part No. 1272823GT ZX-135/70 21
12 Jib boom up/down buttons
Press the jib boom up button and the jib boom
will raise. Press the jib boom down button and
the jib boom will lower.
13 Platform level up/down buttons
Press the platform level up button and the level
of the platform will raise. Press the platform
level down button and the level of the platform
will lower.
14 Primary boom extend/retract buttons
Press the primary boom extend button and the
primary boom will extend. Press the primary
boom retract button and the primary boom will
retract.
15 20A circuit breaker for system circuit
16 Alarm
17 Bypass/recovery key switch
Bypass key position to be used only to level the
platform if the ground control display shows
platform out of level (P22) and platform level
controls do not work. Refer to the operating
instructions.
Recovery key position should be used only by
trained and authorized personnel.
18 Platform rotate right button
Press the platform rotate right button and the
platform will rotate right.
19 Platform rotate left button
Press the platform rotate left button and the
platform will rotate left.
20 Jib boom extend/retract buttons
Press the jib boom extend button and the jib
boom will extend. Press the jib boom retract
button and the jib boom will retract.
21 High speed function enable button
Press the high speed function enable button to
enable the functions on the ground control
panel to operate at high speed.
22 Low speed function enable button
Press the low speed function enable button to
enable the functions on the ground control
panel to operate at low speed.
23 Emergency power button
Use emergency power if the primary power
source (engine) fails.
Simultaneously hold the emergency power
button and activate the desired function.
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