Loading ...
Loading ...
Loading ...
User’s Manual
25
Boom Type Boom Length L (m) Spring Cable Diameter (mm) Remarks
Straight Boom with
Rubber Strip
L < 3 Φ4.5
yellow
Telescopic Boom 3–4 Φ4.5 + Φ4.5
Telescopic Boom 4–5 Φ4.5 + Φ5.5
Telescopic Boom 5–6 Φ4.5 + Φ6
Folding Boom 5 ≥ L ≥ 4.3 Φ5.5 + Φ4.5
Folding Boom 4.3 > L ≥ 3 Φ4.5 + Φ4.5
Folding Boom L < 3 Φ4.5
Fence Boom (two
sections)
L = 4.5 Φ6.0 + Φ6.0
Fence Boom (two
sections)
4.5 > L ≥ 4 Φ6.0 + Φ5.5
Fence Boom (two
sections)
4 > L ≥ 3.5 Φ5.5 + Φ5.5
Fence Boom (two
sections)
3.5 > L ≥ 3 Φ5.5 + Φ4.5
Fence Boom (two
sections)
L < 3 Φ4.5 + Φ4.5
Remove the spring. Step 2
1) Open the boom gate to make the boom stay at 90°.
2) Loosen the spring lock nut, use a hexagonal wrench to remove the spring adjustment
screw (M8 × 140 mm), and then take out the spring from the hook.
The installation procedure is the opposite of the removing process.
Position of spring Figure 3-10
Table 3-12 Structure description
Loading ...
Loading ...
Loading ...