Maintenance And Inspection - Hitachi UC 36YRSL Handling Instructions Manual

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(3) Regarding recharging time
Table 3 shows the recharging time required according
to the type of battery and back pack power supply.
Table 3 Recharging time (approx.) at 20°C
Battery
Voltage
1.5 Ah
14.4 V 30 min.
18 V 30 min.
25.2 V —
36 V —
NOTE: The recharging time may vary according to the ambient temperature.
4. Disconnect the charger's power cord from the
receptacle.
5. Hold the charger fi rmly and pull out the battery or
adaptor of back pack power supply.
NOTE:
○ Be sure to pull out the battery or adaptor of back pack
power supply from the charger after use, and then keep
it.
○ When the back pack power supply is not in use, switch
it OFF.
How to make the batteries and back pack power
supply perform longer.
(1) Recharge the batteries and back pack power supply
before they become completely exhausted.
When you feel that the power of the tool becomes
weaker, stop using the tool and recharge its battery and
back pack power supply. If you continue to use the tool
and exhaust the electric current, the battery and back
pack power supply may be damaged and its life will
become shorter.
(2) Avoid recharging at high temperatures.
A rechargeable battery and back pack power supply will
be hot immediately after use. If such a battery and back
pack power supply are recharged immediately after
use, its internal chemical substance will deteriorate,
and the battery and back pack power supply life will
be shortened. Leave the battery and back pack power
supply for a while, and recharge them after they have
cooled.
CAUTION
○ If the battery and back pack power supply are charged
while it is heated because it has been left for a long time
in a location subject to direct sunlight or because the
battery and back pack power supply have just been
used, the pilot lamp of the charger lights up green. In
such a case, fi rst let the battery and back pack power
supply cool, then start charging.
○ When the charge status fl ickers in red (at 0.2-seconds
intervals), check for and take out any foreign objects in
the charger's battery connector. If there are no foreign
objects, it is probable that the battery, back pack power
supply or charger is malfunctioning. Take it to your
authorized Service Center.
○ Since the built-in microcomputer takes about 3 seconds
to confi rm that the battery and back pack power supply
being charged with UC36YRSL is taken out, wait for a
minimum of 3 seconds before reinserting it to continue
charging. If the battery is reinserted within 3 seconds,
the battery and back pack power supply may not be
properly charged.
8
Battery capacity (Ah)
Li-ion Battery
2.0 Ah 2.6 Ah
40 min. —
40 min. —
— —
60 min. 80 min.
3.0 Ah 4.0 Ah
60 min. 80 min.
60 min. 80 min.
60 min. —
— —

MAINTENANCE AND INSPECTION

1. Inspecting the mounting screws:
Regularly inspect all mounting screws and ensure that
they are properly tightened. Should any of the screws
be loose, retighten them immediately. Failure to do so
could result in serious hazard.
2. Cleaning of the charger
When the charger is stained, wipe with a soft dry cloth
or a cloth moistened with soapy water. Do not use
chloric solvents, gasoline or paint thinner, for they melt
plastics.
3. Store idle charger
When not in use, the charger should be stored in dry,
high or locked-up place — out of reach of children.
4. Service parts list
A: Item No.
B: Code No.
C: No. Used
D: Remarks
CAUTION
Repair, modifi cation and inspection of Hitachi Power
Tools must be carried out by a Hitachi Authorized
Service Center. This Parts List will be helpful if
presented with the tool to the Hitachi Authorized Service
Center when requesting repair or other maintenance.
In the operation and maintenance of power tools, the
safety regulations and standards prescribed in each
country must be observed.
MODIFICATIONS
Hitachi Power Tools are constantly being improved
and modifi ed to incorporate the latest technological
advancements. Accordingly, some parts (i.e. code
numbers and/or design) may be changed without prior
notice.
NOTE
Due to HITACHI's continuing program of research and
development, the specifi cations herein are subject to
change without prior notice.
Back pack power supply
21 Ah
—
—
—
10 hours