Maeda MC405C-3 - Checking; Adjusting Boom Telescoping Wire Rope

Section 5 – GENERAL MACHINE MAINTENANCE Mini-Crawler Crane M A E D A
5-70 1/2019 MC405C-3
Checking / Adjusting 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. 5-173
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" on page 5-
71.
Fig. 5-174
4. Check that 5-mm clearance is formed
between booms No.4 and No.5, clearance
(a), 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".
Fig. 5-175