M A E D A Mini-Crawler Crane Section 5 – GENERAL MACHINE MAINTENANSE
3/2019 MC305C-3 5-71
Check / Adjust Boom Telescoping Wire
Rope
Checking Boom Telescoping Wire Rope
Prompt adjustment is required if the following
event appears in the boom extending wire rope.
1. Retract the boom completely.
2. Remove three mounting bolts (1) at the boom
end and remove the cover (2).
Fig. 5-153
3. Remove lock bolt (6) at the boom telescoping
cylinder top, and turn adjustment bolt (9) of
the boom extending wire clockwise (right).
The boom extending wire rope (8) is adjusted
to the correct tension if boom No.5 extends
upon rotating the adjusting bolt (9).
If boom No.5 remains retracted, perform
proper adjustment according to "Adjustment
of boom telescoping wire rope".
Fig. 5-154
4. Check that 5mm clearance is formed between
booms No.4 and No.5, clearance (a) shown in
the figure, with the booms retracted in a
horizontal position.
If check finds clearance of 5mm or more,
perform proper adjustment according to
"Adjustment of boom telescoping wire rope"
on page 5-72.
Fig. 5-155
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