Hitachi UC 18SD, Технические данные и руководство по обслуживанию

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(1) Failure Mode (A) steps and repair procedures
Follow proper
charging procedures.
Remove dirt or
correct abnormality.
Charge at appropriate
temperature.
10 C --- 40 C
(50 F --- 104 F)
Battery cannot be
charged if over
40 C (104 F).
Cool battery before charging.
NO
YES
NO
YES
Check with tester.
Pilot Lamp on,
Charger does not go on.
Is battery charged
according to proper
procedures ?
Are connection
terminals on charger
or battery dirty,
deformed or
abnormal?
Is the
temperature range
appropriate for charging?
10 C --- 40 C
(50 F --- 104 F)
Is the battery
too hot?
What is the
voltage of the battery
between the (+) and (-)
terminals?
Battery is defective.
Replace battery.
YES
NO
YES
NO
DC 0 V
Defective Charger
Is there
continuity between
the blades of the
AC plug?
Is the fuse on
the secondary side
blown?
Is there a
disconnected lead
wire on the secondary
side?
Printed circuit board
is defective.
Replace printed
circuit board.
YES
NO
YES
YES
YES
NO
NO
NO
Circuit break
Is there a break
in the cord?
Replace transformer.
Thermal fuse on
primary side of
transformer is melted.
Replace cord.
Replace fuse.
Replace transformer.
DC 18 V
* 14.4 V batteries cannot
be charged.
9. TROUBLESHOOTING GUIDE
9-1. Failure During Charging
Failure
Pilot lamp off, charger does
not go on.
To Failure Mode (A)
Pilot lamp on, charger does
not go off.
To Failure Mode (B)
Abnormal heat is generated.
To Failure Mode (C)