Hitachi UC 10SL2 User manual

Hitachi
Brand
Hitachi
Model
UC 10SL2
Category
Cable network testers
Type
User manual

Hitachi UC 10SL2

The Hitachi UC 10SL2 is a charger that enables rapid battery charging. It also incorporates safeguards against overcharging, making it suitable for various battery-powered devices. The charger features an indicator light that provides crucial information about the charging status.

For instance, a steady red light indicates ongoing charging, while a rapidly flashing red light may signify a poor connection or a faulty battery. Additionally, the charger is equipped with safety mechanisms, including a fuse to protect against electrical faults.

Using the Hitachi UC 10SL2 is straightforward. Simply connect the battery to the charger, and it will automatically initiate the charging process. The indicator light will keep you informed about the charging status, allowing you to monitor the progress and identify any potential issues promptly.

Hitachi UC 10SL2

The Hitachi UC 10SL2 is a charger that enables rapid battery charging. It also incorporates safeguards against overcharging, making it suitable for various battery-powered devices. The charger features an indicator light that provides crucial information about the charging status.

For instance, a steady red light indicates ongoing charging, while a rapidly flashing red light may signify a poor connection or a faulty battery. Additionally, the charger is equipped with safety mechanisms, including a fuse to protect against electrical faults.

Using the Hitachi UC 10SL2 is straightforward. Simply connect the battery to the charger, and it will automatically initiate the charging process. The indicator light will keep you informed about the charging status, allowing you to monitor the progress and identify any potential issues promptly.

PRODUCT NAME
Hitachi Charger
Model UC 10SL2
REPAIR GUIDE ----------------------------------------------------------------------------------------------------------------- 1
1. General precautions ------------------------------------------------------------------------------------------- 1
2. Precautions on disassembly and reassembly ------------------------------------------------------------- 2
TROUBLESHOOTING GUIDE ---------------------------------------------------------------------------------------------- 3
1. Troubleshooting based on pilot lamp indication --------------------------------------------------------- 3
2. Troubleshooting and repair procedure ---------------------------------------------------------------------- 3
STANDARD REPAIR TIME (UNIT) SCHEDULES---------------------------------------------------------------------- 7
CONTENTS
LIST No.
UC 10SL2: J881
Jun. 2014
U
International Sales Division
-1-
Case (A).(B) Set [1]
Cord [4]
Printed Circuit Board
Ass’y [7]
Fuse (250 V/3.15 A) [5]
Tapping Screw
(W/Flange) D3 x 18 [2]
1. General precautions
The outer frame of the Model UC 10SL2 consists of case (A) and case (B). Inside the frame, there is a
printed circuit board ass’y. This printed circuit board ass’y consists of devices to permit rapid charging and
also to protect against overcharging.
REPAIR GUIDE
-2-
2. Precautions on disassembly and reassembly
[Bold] numbers in the description below correspond to the item numbers in the Parts List and exploded
assembly diagram for the Model UC 10SL2.
WARNING: Prior to disassembly, be sure to disconnect the power plug from the power supply.
(1) Remove the four Tapping Screws (W/Flange) D3 x 18 [2] and remove Case (A).(B) Set [1]. The Printed
Circuit Board Ass’y [7] and the Cord [4] can then be taken out as an assembled body.
(2) To separate the Printed Circuit Board Ass’y [7] from the Cord [4], melt the soldered portions with a
soldering iron.
NOTE: Ideally, the soldered portions should be freed with a solder absorber. If a soldering iron
must be used, use one with a rated power of 35 W.
Reassembly can be accomplished by reversing the disassembly procedure; however, special attention
should be given to ensure that lamps, cord armor and charging terminals are properly installed in their
prescribed grooves.
Tapping Screw (W/Flange) D3 x 18 [2] ········································· 0.6 to 1.0 N•m (6.0 to 10.0 kgf•cm)
(1) After reassembly, check that the red pilot lamp on the charger goes on when charging starts.
When charging the Type BCL 1015 battery, check that the red pilot lamp remains on for about 30
minutes after the start of charging.
(2) Measure the insulation resistance and conduct a dielectric strength test.
• Insulation resistance
10 Mȍ or higher between the plug blade of the cord and the name plate or the fastening screws on the
case, with a 500 VDC megohm tester
• Dielectric strength test
(a) Between the plug blade of the cord and the charging terminal blade
(b) Between the plug blade of the cord and the name plate or the fastening screws on the case
Conduct a dielectric strength test based on the voltage listed on the name plate.
Voltage listed on the name plate Test voltage
120 V 1,240 VAC (1 minute)
220 V to 240 V 3,750 VAC (1 minute)
CAUTION: Without fail, insulation resistance must be measured between the plug blade of the
cord and the name plate or the fastening screws, and a dielectric strength test must
be conducted between the plug blade of the cord and the charging terminal blade or
between the plug blade of the cord and the name plate or the fastening screws on the
case. Under no circumstances should testing be conducted between both blades of
the plug or those of the charging terminal. Doing so may cause the charger to burn
out.
Screw tightening torque
Disassembly
Reassembly
Confirmation after reassembly
-3-
(1) Trouble mode (A)
1. Troubleshooting based on pilot lamp indication
Problem Typical cause Check procedure
Pilot lamp fails to go on or flash.
(1) Faulty AC cord
(2) Blown fuse (3.15 A) on primary side
(3) Faulty PCB
See trouble mode (A).
Pilot lamp indicates abnormality by
flashing rapidly at 0.1 second
intervals.
(1) Poor connection of terminal
(2) Faulty battery (open circuit)
(3) Faulty PCB
See trouble mode (B).
Pilot lamp does not go on after
battery has been connected.
(Charging does not start.)
(1) Poor connection of terminal
(2) Faulty battery (open circuit)
(3) Faulty PCB
See trouble mode (C).
Pilot lamp remains flashing (on for
1 second, off for 0.5 second) after
battery has been connected.
(1) Poor connection of terminal
(2) Faulty battery (open circuit)
(3) Faulty PCB
See trouble mode (D).
2. Troubleshooting and repair procedure
Check with a tester.
(About 1 kȍ)
Pilot lamp fails to go on or flash.
Is there an
open circuit in
the AC cord?
Is the fuse (3.15
A) on the primary
side blown?
NO
YES
NO
Faulty internal circuit
NO
TROUBLESHOOTING GUIDE
YES
YES
Re
p
lace the PCB.
Re
p
lace the fuse
(
3.15 A
)
.
Replace the AC cord.
Appl
y
rated volta
g
e.
NO
Is rated voltage
applied to the
plug?
Is there continuity
between blades
of the AC cord
plug?
YES
-4-
(2) Trouble mode (B)
Pilot lamp indicates abnormality by
flashing rapidly at 0.1 second intervals.
NO
YES
Faulty internal circuit
Replace the PCB.
YES
Is the battery connected in
reverse?
Clean or repair deformed terminals.
YES
Are connection terminals of
the charger or battery dirty or
deformed?
Install the battery in the correct
direction.
NO
NO
Is the battery short-circuited
or opened?
Replace the battery.
-5-
(3) Trouble mode (C)
Check with a tester.
NO
YES
Faulty internal circuit
Replace the PCB.
Replace the battery.
Remove dirt or correct abnormality.
YES
Are connection terminals of
the charger or battery dirty,
deformed, or otherwise
abnormal?
Is battery voltage between the
“+” and “-” terminals normal?
Normally 6 to 12.75 VDC
Pilot lamp does not go on after
battery has been connected.
(Charging does not start.)
NO
-6-
(4) Trouble mode (D)
Pilot lamp remains flashing (on for 1
second, off for 0.5 second) after
battery has been connected.
NO
YES
Faulty internal circuit
Replace the PCB.
Conduct charging within
designated temperature range.
YES
Is ambient temperature within
designated range (between 0°C
and 40°C)?
Is the battery very hot?
Check with a tester.
NO
YES
Replace the battery.
Clean, or repair deformed terminals.
YES
Are connection terminals of
the charger or battery dirty or
deformed?
Is resistance between the
“LS” and “-” terminals 2 kȍ
to 100 kȍ?
0°C to 40°C
Allow the battery to cool prior
to charging.
Charging cannot be done at battery
temperature above 55°C.
NO
NO
-7-
MODEL
Variable
Fixed
10 20 30 40 50 60 min.
UC 10SL2
General Assembly
Cord
Work Flow
Case (A).(B)
Set
Fuse
Printed Circuit
Board Ass’y
STANDARD REPAIR TIME (UNIT) SCHEDULES
Model UC 10SL2
CHARGER
LIST NO. J881
2014· 6 · 23
(E1)
1
2
4
7
8
5
3
6
PART
S
UC 10SL2
DESCRIPTION REMARKS
* 1 337292 CASE (A).(B) SET 1
* 1 337293 CASE (A).(B) SET 1 FOR USA,CAN
2 326358 TAPPING SCREW (W/FLANGE) D3 X 18 4
* 3 NAME PLATE 1 FOR AUS,NZL
* 4 337635 CORD (EURO) 1
* 4 326212 CORD (U.K) 1 FOR GBR,MAL,HKG,UAE
* 4 324743 CORD 1 FOR IND,VIE,SIN
* 4 337636 CORD (N.Z) 1 FOR AUS,NZL
* 4 337634 CORD (USA) 1 FOR USA,CAN
* 4 331985 CORD 1 FOR BRA
* 4 329602 CORD 1 FOR CHN
* 4 324740 CORD 1 FOR TPE
5 337637 FUSE (250V/3.15A) 1
* 6 337638 BAND 3
FOR EUROPE,RUS,GBR,MAL,AUS,NZL
* 7 337295 PRINTED CIRCUIT BOARD ASS'Y 110V-127V 1 INCLUD.5
* 7 337296 PRINTED CIRCUIT BOARD ASS'Y 220V-240V 1 INCLUD.5
* 8 NAME PLATE 1 EXCEPT FOR USA,CAN
- 2 - Printed in Japan 6 - 14
(140623N)
*ALTERNATIVE PARTS
ITEM
NO.
NO.
USED
CODE NO.
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10

Hitachi UC 10SL2 User manual

Hitachi
Brand
Hitachi
Model
UC 10SL2
Category
Cable network testers
Type
User manual

Hitachi UC 10SL2

The Hitachi UC 10SL2 is a charger that enables rapid battery charging. It also incorporates safeguards against overcharging, making it suitable for various battery-powered devices. The charger features an indicator light that provides crucial information about the charging status.

For instance, a steady red light indicates ongoing charging, while a rapidly flashing red light may signify a poor connection or a faulty battery. Additionally, the charger is equipped with safety mechanisms, including a fuse to protect against electrical faults.

Using the Hitachi UC 10SL2 is straightforward. Simply connect the battery to the charger, and it will automatically initiate the charging process. The indicator light will keep you informed about the charging status, allowing you to monitor the progress and identify any potential issues promptly.

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