64
Maintenance
GB 14 00 05
Adjusting the front fold cable
The performance of the SPB/SPC boom while spraying
depends very much on the front fold cable adjustment. A
correctly adjusted cable will also control the movement
of the outer section.
WARNING! The rear cable can snap and injure
you or someone else if tensioned when the boom
is unfolded. Always adjust the front cable first -
with the boom unfolded and the rear cable last - with the
boom folded in transport position.
1. Unfold the boom.
2. Check security of turnbuckle anchors to its hinges.
3. Slide a straight edge A down the underside of the
inner section until it contacts the front cable = contact
point (B).
4. Suspend a weight of 4.5 kg from the straight edge-to-
cable contact point (B) and check deflection by
measuring the distance from the straightedge to the
cable. Cable should deflect 13-22 mm.
Boom section seen from
above:
A
B
T102-0009
Deflection = 13-22 mm
4.5 kg
B
T102-0009
If adjustment is needed:
Alignment of inner section and outer
section
1. Unfold the boom and check that the boom wing is
aligned. If adjustment is needed:
2. SPB type: Remove stop device A from the inner
section. SPC type: Loosen stop device A.
3. Adjust the position of the adjusting bolt B on the inner
section so that the cap of the bolt head B contacts
top stop plate on outer section with inner and outer
sections aligned. Tighten it in this position.
4. SPB type: Fit stop device A again. SPC type: Tighten
stop device A again.
T103-0012
SPB only: Please note that the rubber stop (= stop
device A) should be compressed 3-5 mm. Therefore,
check that the distance between the tabs C is a little less
than the length of the rubber stop itself. The rubber stop
may need to be spaced out with 1 or more flat washers
in order to obtain correct compression. Tighten nut to
hold it in place.
T212-0020
A
B
SPB type
SPC type
C
A
B
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