36 The GS550 System
Maximum Boom Extension
Confirm the extension of the LS101 cable reel is compatible with the boom.
Step 1. Note the cable reel maximum extension: 100 feet
(30.5 metres) unless specified otherwise.
T = ______________
Step 2. Note the retracted boom length.
A = ______________
Step 3. Note the maximum extended boom length, not
including jib.
B = ______________
Step 4. Calculate maximum boom extension.
C = B – A = ______________
Step 5. Compare cable reel maximum extension (T) to
maximum boom extension (C).
D = T – C = ______________
Maximum cable reel extension must be greater than maximum boom extension.
Mounting the Cable Reel
1. Determine placement. Find a clear mounting position on the left side of the first (lowest) section
of the boom. The mounting position should be close to the base of the boom; at least ten feet
(three metres) from the tip of the first section and where the cable reel won’t obstruct free boom
movement at all boom angles and slew positions. Furthermore, the reel must be placed such
that the cable has a clear straight line to the end of the last section at all boom lengths.
GS011 angle/length
sensor antenna
Figure: GS101 angle & length senso
LS011 length sensor
cable reel
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