© Mar. 2022 7-4 GTTZ10EJ Operation Manual
OPERATING THE MACHINE
Figure 7-3
• To restore any machine function, pull out all
emergency stop buttons and power disconnect
switch to ON position.
EMERGENCY OPERATING
When the operator is unable to control the
machine：
1. Other personnel shoud operate the machine from
the ground controls only as required by the safety
rules.
2. Other qualified personnel on the platform may use
the platform controls. Do not continue operation if
the controls do not function properly.
3. Use rescue equipmment to safely transfer the
personnel in the platform. Cranes, forlifts or other
devices of proper capacity may be used to stablize
the machine from motion.
When the platform or jib boom is caught
overhead：
If the platform or jib boom becomes jammed or
snagged in overhead structures or equipment, rescue
all people in the platform before freeing the machine.
EMERGENCY CONTROL
In case emergency situation, malfunction or power loss
occurs, the emergency control procedures listed below
may be applied as appropriate.
To lower the main boom
See Main boom emergency lowering , page 6-11
To lower the jib boom
See Jib boom emergency lowering, page 6-11
To raise the main boom
Figure 7-4
1. Open the right turntable cover, and locate the
handle of hand pump.
2. Insert the handle into the hole of hand pump as
indicated.
3. While pressing the button at the end of main boom
lift valve, push and pull the handle up and down, the
main boom should rise.
To rotate the turntable
Figure 7-5
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