24
58
G
B
BOOM ASSEMBLY Ø 80
- After assembling the hub, assemble the boom seal jumper 80, by partially screwing the
screws composed of:
No.4 stainless steel 8 x 20 TCEI screws, No.4 stainless steel 8 x 16 flat washers No. 4
grower washers 8 mm (Fig. 54).
- Insert the boom Ø80 into the jumper (Fig. 55)
making the part of the profile remain
where the accessories are fixed parallel and to front of the floor (Fig. 56).
- Tighten the screws to the floor (Fig. 57).
- Manually bring the boom to a horizontal position.
- Release the boom, checking that it rises until it reaches complete opening.
If the boom does not rise, check the correct pulling in the spring (Fig. 58-59) as shown in the
appropriate
SPRING CALIBRATION TABLE.
54
55
57
56
59
