Maeda MC305C-3 - Searcher Hook Operation

Section 4 – SEARCHER HOOK OPERATION Mini-Crawler Crane M A E D A
4-132 3/2019 MC305C-3
SEARCHER HOOK
OPERATION
1. See "Moment Limiter Settings" on page
4-36 and set the outrigger
Fig. 4-379
2. Install bracket (1), (2), and (3) using M12
bolts with washers (strength 10.9), nuts,
and washers to main boom. Using torque
wrench, tighten bolts at 93N・m (±14N・m).
Then insert pin (4) into holes of bracket (1),
(2), and (3) as shown in the drawing, and
tighten M8 bolts with washers (strength
10.9) at torque 27N・m (±8N・m).
Fig. 4-380
DANGER! Crash Hazard. Make sure to torque
searcher hook mounting plate bolts to the
designated tightening torque.
To install searcher hook, always use new
genuine Maeda bolts, nuts, and washers.
3. Using the fall mode selector switch (23), set
moment limiter to 850 kg searcher hook
mode (all LED flashes).
Also make sure the boom length display
changes to either SH1, SH2, or SH3.
Fig. 4-381
DANGER! Do not operate 850 kg searcher
hook without setting moment limiter as "850
kg searcher hook mode". Without setting in
correct mode, moment limiter will not work
properly, and thus may result in crane
damage or serious accident.
CAUTION: The last status of the fall mode is
memorised even after starter switch is
turned to the OFF position.
4. Remove the Lynch pin (6) from the end of
position pin (5), and remove the position pin
(5).
Fig. 4-382
5. Line up the hole (8) in E-boom (7) tip and
hole (9) in bracket.
Fig. 4-383