4
EASy Reference Guide - S38SX
Service Bulletin
Unfolding the Boom
Before unfolding boom section 4 (joint D), boom section
5 (joint E) must be opened at least 40°, to avoid a col-
lision between boom sections 3 and 5. Please refer to
"Boom unfolding procedure" on page 5 to properly
unfold the boom.
Observe the placing boom constantly
and avoid contact with obstructions.
Figure 5
Observe the boom at all times to avoid collisions
Boom Joints
A
B
C
D
E
5
4
3
2
1
Figure 6
Location of boom joints
Joint E
Joint D
0°
►
40°
►
41°
►
< 40°
◄
2° - 150°
< 40°
◄
> 150°
< 40°
◄
0°
Joint “D” dependence on joint “E”
The boom sensor system will not allow joint D to be
moved until joint E has been opened 41°.
If you attempt to move joint D before joint E is opened
of ≥ 41°, the horn will sound and a warning will be dis
-
played on the radio remote.
41°
D
E
Figure 7
Joint E opened 41
°
, Joint D allowed to move.
Joint “E” dependence on joint “D”
The boom sensor system prevents boom joint "E" from
opening less than an angle of 40° as long as boom joint
"D" has an opening angle of < 150°.
If joint "D" has an opening angle of > 150°or boom sec-
tion 3 is in full contact with section 4, joint "E" can be
folded together at an angle of less than 40°.
E - unlocked
D
D
E - locked
<150°
>150°
Figure 8
