FIGURE 4-30
A1055
View A
Upper
Strap
Approximately 25 mm (1 in)
from Bottoming Out –
Boom Angle Approximately 89°
Boom
Stop Pin
Boom Butt
Handling Cylinder
Fully Raised Position
(backhitch pins engaged)
152 mm
(6 in)
Equalizer
Pin to boom butt rails only when
raising or lowering gantry with
boom butt.
CAUTION
Sag in the equalizer is normal. Do not attempt
to straighten while raising or lowering the
gantry with the boom butt. Damage to the
boom butt will occur.
Fully Lowered Position
(gantry cylinders fully
retracted)
Intermediate Position
(gantry cylinders fully
extended)
Boom Butt
Gantry
Physical
Boom Stop
Telescopic
Backhitch
Backhitch
Pin
Physical Boom
Stop Rod End
Assembly Block
Must be kept on ground while raising or
lowering gantry with boom butt.
Counterweight Assembly
•Installed or removed when raising or
lowering gantry with boom butt.
• Installed when raising or lowering
gantry with fully rigged boom.
Gantry
Cylinders
Lower
Strap
Contrasting
Paint Color
View B
CAUTION
Lower holes in backhitch straps are for MAX-ER
2000 operation only.
Do not attempt to handle boom or loads with
gantry pinned in this position.
A513
Setup Limit
Switch