FIGURE 4-10 continued
DANGER
Falling Mast Hazard!
Do not use limit bypass to lower mast below
172
°. Mast will fall suddenly.
View F
145
°
120°
View G
Operating
Range
172
°— Lower mast to this
position only for installing
assembly block
NOTE: Mast must be raised to approximately 102
° when
installing crawlers and carbody counterweight. Mast
arm cylinders will retract automatically as mast is
raised and then extend when the mast is lowered.
Item Description
1Mast
2 Mast Arm (with Hydraulic Cylinder)
1
2
7
102
°
6
14COM4110a
14COM4111a
Circled Numbers Correspond to
RAISE MAST TO OPERATING POSITION
Procedure
DANGER
Falling Mast Hazard!
Do not lower mast arms until mast is connected to boom rigging. Mast
will fall over backwards if raised to vertical when arms are down.
1
5
2
4
View E
14COM4109a