User's Manual

GM550 v1043 FCC-IC.doc Revision 2 39
Mounting the Cable Reel
Step 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.
Step 2. Mount the welding tabs. They must be placed parallel to each other, with 16 ⅛ inches
between the holes’ centres. Install the tabs such that they create a level mounting
position in line with the boom at 0 degrees.
Tip: When factory installed the GS011 angle/length sensor transmitter is integrated to the LS101
cable reel with the angle sensor zeroed. If the cable reel is installed perfectly level on the boom at
0 degrees, the angle sensor of the GS011 will also be zeroed. Minor adjustments to the angle
sensor (within plus or minus two degrees) are possible after cable reel installation.
Step 3. Attach the reel to the welding tabs with the bolts provided. The reel should be
orientated with the GS011 angle/length sensor antenna coming out the top side of the
cable reel cover.
Step 4. Install the first cable guide (PA111) about 10 feet (3 metres) from the cable reel.
Correct alignment of the first guide is critical to ensure orderly winding of the cable on
the reel. Install the other guides at the end of each of the intermediate sections and the
anchor (PA113) at the end of the last section. All guides must be aligned so as to
permit unobstructed movement of the cable.
Step 5. Pull out at least 5 feet (1 ½ metres) of cable, but not more than half the excess
extension D (see maximum boom extension step five). Feed through the cable guides
and attach to the cable anchor on the tip of the last boom section. If additional cable
length is required to reach the cable anchor point remove winds from the reel without
putting additional tension on the cable reel spring. There should be minimal tension on
the cable reel spring when the boom is fully retracted.
Step 6. Verify the boom length indicated on the GS550 LCD. Boom length is indicated following
the length abbreviation “L”, typically on the first or second operation page. Boom length
indicated should equal the actual total boom length. The actual boom length is the
Boom base →
← Boom ti
p
Welding pads level and in line
with the boom at 0 degrees
Welding pad
Welding pad holes tapped ⅜-16
Welding pad holes 2 ¼ in.
apart, centre to centre
Boom at 0 degrees from horizontal
Welding pads holes 16 ⅛ in.
apart, centre-to-centre
Figure: Cable reel mounting position