Y-8
Y-8
Operation Check (Crane Operation)
44
WY05-4780E
2. Hoisting
[Condition]
• L
oad
: None
•
Engine speed : Approximately 700 min
-1
to medium speed
[Procedure]
1. Shift the boom telescoping lever to full stroke first.
2. Make sure that the main winch moves slowly
while the auxiliary winch lever is slightly operated.
3. Make sure that the main winch does not move
while the auxiliary winch lever is operated to full
stroke.
3. Backward stability control
[NOTICE]
Extend the outrigger, and set up the machine
horizontally.
1. Select the on-rubber for outrigger set status on
the AML.
2. The boom raising operation must be stopped at
71° automatically.
3. The boom lowering must be available.
4. Outrigger emergency setting
[NOTICE]
For the location of the switch, refer to “Z-10 Electric
Parts Location Diagram (Upper), 1. Inside cab”.
1. Turn ON the emergency outrigger state register
switch (CN907) of the upper panel in the cab.
2. Icon flashes on the AML display.
3. Check that the extension width smaller than the
detected value can be registered on AML
manually.
5. Jib
1. Make sure that the anti-two-block function does
not work while the jib set status is registered.
2. Check the jib lock indicator lamp.
•
Make sure that the lamp is lit when the jib is in
“set state” (the jib stowed detection switch
(CN572) is not activated).
•
Make sure that the lamp is not lit when the jib is
in “stowed state”.
Summary of Contents for GR-300EX-3
Page 1: ......
Page 8: ...7 WA04 4880E 6 Group index System Diagrams Data Adjustment and Checks Y Z Y Z...
Page 27: ...14 WY02 1792E Y 2 Y 2 Adjusting Pressure Hydraulic Pressure...
Page 98: ...Z 6 Z 6 Hydraulic Parts Location Diagram Upper 27 WZ07 3762E 7 Gauge 3 343 450 35500...
Page 99: ...Z 6 Z 6 Hydraulic Parts Location Diagram Upper 28 WZ07 3762E 8 Pilot 0 343 458 63000...
