Minimum Extension Procedure
1.
Retract all four outrigger beams fully and inset four
lock pins into the pin holes to lock the outrigger beams.
2.
Extend all the jack cylinders fully in the same proce-
dure as the full extension procedure.
Level Adjustments
Using the Bubble Level
“Setting the vehicle level” refers to the condition that the
vehicle is set so that the bubbles in the spirit level are
between the marking lines.
Check the position of the bubbles in the bubble level. If a
bubble is off-center, it means that the crane is not level,
and the side of the crane in the direction of the bubble is
higher.
—
Example
—
A bubble in the glass level is off-center and to the right.
= The crane is listing to the left.
Adjustment
The crane should be adjusted to a level position by re-
tracting (extending) the jack cylinders located on the
higher (lower) side of the crane. The following explana-
tion assumes that the right side of the crane is higher
(lower).
1.
Place the right front and right rear individual control
levers (levers corresponding to the higher (lower) side)
in the JACK position. Move the extend/retract control
lever toward RET. (EXT.) a little at a time to retract (ex-
tend) the jack cylinders on the right side of the crane.
T038330E
62
Outriggers
Outriggers
T30113
Bubble level
T24430E
Marking line
Bubble
EXTENSION
JACK
FRONT JACK
EXT.
RET.
T30114E
Summary of Contents for GT-550E-2
Page 20: ...A 19 Safety Rules Safety Rules...
Page 23: ...A 22 Safety Rules Safety Rules...
Page 29: ...A 28 Safety Rules Safety Rules...
Page 30: ...A 29 Warning Labels Warning Labels...
Page 32: ...A 31 Warning Labels Warning Labels 1 2 3 JIB PIN STATUS...
Page 36: ...1 Contents Contents...
Page 37: ...2 Contents Contents...
Page 38: ......
Page 41: ...6 Layout of Controls Layout of Controls of Controls Layo out...
Page 46: ...H000450E OPERATION...
Page 73: ......