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Fit the coupler
18. With the counterbalance assembly under
minimum tension – i.e. with the boom pole
in the raised position – fit the boom
coupler.
19. Engage the boom coupler/output shaft
splines so that the boom coupler is in its
closest vertical position.
20. Fit the washer and cap screw and then
tighten using an 8mm Allen Key.
Boom
coupler
Boom
coupler
SECTOR enclosure
SECTOR enclosure
Boom
coupler
8mm
Allan key
Washer
Cap screw
FIGURE 20. FITTING THE COUPLER
FIGURE 21. FITTING THE COUPLER
FIGURE 22. FITTING THE COUPLER