M A E D A Mini-Crawler Crane Section 5 – GENERAL MACHINE MAINTENANSE
3/2019 MC305C-3 5-57
Cautions When Starting Up Using
Booster Cable
WARNING! Wrong booster cable connection
method may result in fire, so ALWAYS
observe the followings.
• Start the engine by two persons, with one
standing on the driving operation position in
the travel operation panel side.
• When starting using other Machine, be
careful to prevent contact between the
normal Machine and broken Machine.
• Keep the starter switch of both the normal
Machine and the broken Machine in OFF
position when the booster cable is
connected.
• Do NOT connect to wrong side [connecting
(+) to (-), (-) to (+)] when connecting the
booster cable.
• Start connecting from (+) terminal first, but
start disconnecting from (-) terminal
(ground) first.
• Connect the ground to the (-) terminal of the
battery of the broken Machine when
connecting the ground as the last procedure.
See "Operation Starting Engine with Booster
Cable" on page 5-58 for details.
• Avoid the contact between clips of the
booster cable, and contact between a clip
and the Machine when disconnecting the
booster cable.
Fig. 5-102
Fig. 5-103
Cautions on Charging Battery
Fig. 5-104
Improper handling when charging the battery may
cause the battery to explode. Follow the manuals
attached to the machine and the charger, and
always observe the followings.
• Adjust the charger voltage to suit the voltage of
the battery to charge. Mistake in adjusting the
voltage may cause explosions due to overheat
and ignition of the charger.
• Securely fix the (+) charge clip of the charger to
the (+) terminal of the battery, then securely fix
the (-) charge clip to (-) terminal of the battery.
• Set the charge current to no more than 1/10 of
the rated capacity of the battery.
• Do not use quick charging.
• Excessive charge current may cause leap fire
and explosion caused by fluid leak or fluid
deficiency.
When charging the battery mounted to the
machine:
• Abnormal voltage may be applied to the
alternator, resulting in the breakage. Disconnect
the battery terminal wires before charging the
battery.
• Stop charging when the battery was overheated
(fluid temperature exceeded 45 °C).
• Stop charging promptly once the charging is
completed.
Charging even after the charging is completed
will;
(1) overheat the battery
(2) reduce the electrolyte level
(3) cause failures in battery
• Never inverse the connection of [(+) terminal
and (-) terminal]. Doing so can cause damage
on alternator.
• Remove the battery cable when handling the
battery other than for battery electrolyte level
check and specific gravity measurement.
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