Transcript
MODEL
UC 9SF UC 12SF UC 14SF UC 18SF
CHARGER UC 9SF UC 12SF UC 14SF UC 18SF
LIST Nos.H857, H858, H859, H860
Mar. 2010
U
CONTENTS Page 1. PRODUCT NAME----------------------------------------------------------------------------------------------- 1 2. MARKETING OBJECTIVE ----------------------------------------------------------------------------------- 1 3. APPLICATIONS ------------------------------------------------------------------------------------------------ 1 4. SELLING POINTS ---------------------------------------------------------------------------------------------- 1 4-1. Selling Points---------------------------------------------------------------------------------------------------------- 1
5. SPECIFICATIONS --------------------------------------------------------------------------------------------- 2 5-1. Specifications---------------------------------------------------------------------------------------------------------- 2 5-2. Comparison with Similar Product--------------------------------------------------------------------------------- 2
6. PRECAUTIONS ON SALES PROMOTION-------------------------------------------------------------- 3 6-1. Safety Instructions --------------------------------------------------------------------------------------------------- 3 6-2. Points Requiring Special Attention During Sales Promotion ----------------------------------------------- 4
7. REFERENCE MATERIAL ------------------------------------------------------------------------------------ 5 7-1. Structure --------------------------------------------------------------------------------------------------------------- 5
8. PRECAUTIONS ON DISASSEMBLY AND REASSEMBLY ----------------------------------------- 5 8-1. Disassembly ----------------------------------------------------------------------------------------------------------- 5 8-2. Reassembly ----------------------------------------------------------------------------------------------------------- 5 8-3. Confirmation after Reassembly --------------------------------------------------------------------------------- 6
9. TROUBLESHOOTING GUIDE ------------------------------------------------------------------------------ 6 9-1. Failure During Charging ------------------------------------------------------------------------------------------- 6
10. STANDARD REPAIR TIME (UNIT) SCHEDULES---------------------------------------------------- 10 Assembly Diagram for UC 9SF Assembly Diagram for UC 12SF Assembly Diagram for UC 14SF Assembly Diagram for UC 18SF
1. PRODUCT NAME
Hitachi Charger Models UC 9SF, UC 12SF, UC 14SF and UC 18SF 2. MARKETING OBJECTIVE
The Models UC 9SF, UC 12SF, UC 14SF and UC 18SF are inexpensive 9.6 V, 12 V, 14.4 V and 18 V chargers, respectively, that were developed to promote the sales of our low-cost cordless tools. 3. APPLICATIONS
Recharging of Hitachi Ni-Cd batteries Applicable batteries: Model Item
UC 9SF
UC 12SF
Applicable BCC 912 [9.6 V,1.2 Ah] batteries EB 912S [9.6 V,1.2 Ah] EB 9S EB 914S FEB 9S EB 9B EB 924
[9.6 V,1.2 Ah] [9.6 V,1.4 Ah] [9.6 V,1.4 Ah] [9.6 V,2.0 Ah] [9.6 V,2.4 Ah]
BCC 1212 EB 1212S EB 12S EB 1214S EB 1214L FEB 12S EB 12B EB 1220BL EB 1224
UC 14SF
[12 V,1.2 Ah] [12 V,1.2 Ah] [12 V,1.2 Ah] [12 V,1.4 Ah] [12 V,1.4 Ah] [12 V,1.4 Ah] [12 V,2.0 Ah] [12 V,2.0 Ah] [12 V,2.4 Ah]
BCC 1412 EB 1412S EB 1414S EB 1414 EB 14B EB 1424
[14.4 V,1.2 Ah] [14.4 V,1.2 Ah] [14.4 V,1.4 Ah] [14.4 V,1.4 Ah] [14.4 V,2.0 Ah] [14.4 V,2.4 Ah]
UC 18SF BCC 1812 EB 1812S EB 1814SL EB 18B EB 1820 EB 1820L EB 1824
[18 V,1.2 Ah] [18 V,1.2 Ah] [18 V,1.4 Ah] [18 V,2.0 Ah] [18 V,2.0 Ah] [18 V,2.0 Ah] [18 V,2.4 Ah]
4. SELLING POINTS 4-1. Selling Points
(1) Inexpensive charger for Ni-CD battery (2) Approx. 180 minutes to fully charge the 1.2 Ah battery UC 9SF
EB 914S EB 9B BCC 912
UC 12SF
EB 12B
UC 14SF
EB 1214S EB 1220BL BCC 1212
EB 1414S EB 14B BCC 1412
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UC 18SF
EB 1820 EB 18B
EB 1814SL EB 1820L BCC 1812
5. SPECIFICATIONS 5-1. Specifications
Maker Models
UC 9SF
UC 12SF
UC 14SF
UC 18SF
Item Frequency: 50 Hz, 60 Hz
Power supply
Voltage: 230 V
Input capacity
12 W
Voltage drop method
15W
18 W
23 W
Isolating transformer with center tap
Rectifying method
Full wave rectification A thermostat and thermistor monitor the storage battery surface temperature. Overcharging protection When a specified temperature is detected, indicating that charging is system completed, an electronic control circuit turns off the power to prevent overcharging. Battery set lamp indication: Charging indication With battery mounted: On method With battery removed: Off Charging voltage 9.6 V 12 V 14.4 V 18 V Charging current
0.7 A
Charging time at 20°C (68°F)
Approx. 180 minutes (at 1.2 Ah), at below 0°C: Approx. 240 to 360 min. Approx. 210 minutes (at 1.4 Ah), at below 0°C: Approx. 280 to 420 min. Approx. 300 minutes (at 2.0 Ah), at below 0°C: Approx. 400 to 600 min. Approx. 360 minutes (at 2.4 Ah), at below 0°C: Approx. 470 to 720 min.
Product weight
0.13 kg (0.29 lbs.)
Operating temperature
0°C to 40°C (32°F to 104°F)
Unplug the battery from the charger upon reaching the approximate charging time above. The Battery Set lamp goes off when the battery is unplugged from the charger. Note that in case of low battery temperature (below 0°C) or low supply voltage, the battery may not be fully charged. Should you feel that the charger potential has been lowered, charge the battery longer than the charging time above. 5-2. Comparison with Similar Product
Maker Models Item Charging time Charging voltage
min.
V
HITACHI UC 9SF
UC 12SF
UC 14SF
Approx. 180 (at 1.2 Ah), at Under 0°C: Approx. 240 to 360 min Approx. 210 (at 1.4 Ah), at Under 0°C: Approx. 280 to 420 min Approx. 300 (at 2.0 Ah), at Under 0°C: Approx. 400 to 600 min Approx. 360 (at 2.4 Ah), at Under 0°C: Approx. 470 to 720 min
9.6
12
14.4
A Charging current 0.7 °C Applicable ambient 0 to 40 temperature range (°F) (32 to 104) Charging completion Thermostat and Thermistor system
Outer dimensions Product weight
UC 18SF
18
UC 12SD Approx. 60 (at 1.2 to 1.4 Ah) 12 1.55 10 to 40 (50 to 104)
Thermistor
Thermostat
mm (in)
75 x 80 x 69 (2-61/64 x 3-9/64 x 2-23/32)
181 x 87 x 80 (7-1/8 x 3-7/16 x 3-5/32)
kg (Ibs.)
0.13 (0.29)
1.5 (3.3)
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6. PRECAUTIONS ON SALES PROMOTION 6-1. Safety Instructions
In the interest of promoting the safest and most efficient use of the Models UC 9SF, UC 12SF, UC 14SF and UC 18SF Chargers by all of our customers, it is very important when concluding a sale that the salesperson carefully ensure that the buyer seriously recognizes the importance of the Handling Instructions, and fully understands the precautions listed on the Caution Plate and Nameplate attached to the tool. 6-1-1. Handling instructions
Salespersons must be thoroughly familiar with the contents of the Handling Instructions in order to give pertinent advice to the customer. (1) The charged battery voltages are fixed to 9.6 V for the UC 9SF, 12 V for the UC 12SF, 14.4 V for the UC 14SF, and 18 V for the UC 18SF. Never try to charge a battery whose voltage is higher than the voltage that the adapter can supply. Doing so may damage the charger’s printed circuit board or the AC adapter. (2) Only connect the charger to an AC power outlet. The use of any other power source (e.g., DC outlet, engine-powered generator) will cause the charger to overheat and burn out. (3) Do not use any voltage-increasing equipment (e.g., voltage regulator) between the power supply and the charger. Using the charger with voltage exceeding that indicated on the unit will result in malfunction. (4) Conduct battery charging in an ambient temperature range of 0°C to 40°C. Any attempt at charging when the ambient temperature is below 0°C will fail or overcharging will occur due to a malfunctioning recharging control circuit. Any attempt at charging when the ambient temperature is above 40°C will result in charging being stopped before the battery is fully charged due to a rise in temperature during charging, given the small difference between the upper-limit rechargeable battery temperature (40°C) and the ambient temperature. (5) Do not use the charger for repeated charging. Charging two or more batteries successively at a very hot location may cause an excessive rise in charger temperature and result in charger failure. Instruct the customer to wait at least 15 minutes before charging a second battery. Particular care is necessary in summer. (6) Do not insert foreign objects into the air vents on the charger. The charger case is equipped with air vents to protect internal electronic components from overheating. Instruct the customer to never drop or insert foreign matter, such as metallic or flammable objects, into the air vents. This could cause electric shock, fire or other serious hazards. (7) Do not attempt to disassemble the charger. Incorrect parts replacement and/or wiring will cause malfunctions that could result in fire or other hazards. Instruct the customer to bring the charger to an authorized service center in the event that repair or replacement is necessary.
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6-2. Points Requiring Special Attention During Sales Promotion
The customer should be advised of the following points during sales promotion of the charger. 6-2-1. Charging may not be possible at high storage battery temperature
Charging may not be possible when the battery temperature is 40°C (104°F) or higher after the battery has been exposed to direct sunlight for a long time or immediately after it has been used. In such cases, the customer should be advised to place the battery in the shade with good airflow, and allow it to cool sufficiently prior to recharging. This condition is common to all existing chargers (both Hitachi's and its competitor's models) that employ temperature-sensitive devices to terminate charging. The cooling period required before charging varies from a few minutes to about 30 minutes, depending on how long the battery was used and the ambient temperature. 6-2-2. Charging time may be longer under low ambient temperature or power supply voltage
The charging time is greatly influenced by the ambient temperature and input power supply voltage. Fig. 1 shows the relation between input power supply voltage and charging time. Charging takes less time under high input power supply voltage; it takes more time under low voltage. Be sure to advise the customer to charge the batteries at the ambient temperature specified in the Handling Instructions and at the rated voltage listed on the nameplate. (minutes) 360 Ambient temperature at below 0°C (below 32°F) at 0°C to 40°C (32 to 104°F) Storage battery: 1.2 Ah Battery
Charging time
300
240
180
120
ss 95% of rated voltage
Rated voltage (Voltage listed on nameplate)
105% of rated voltage
Input power supply voltage
Fig. 1 Relation between input power supply voltage and charging time
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7. REFERENCE MATERIAL 7-1. Structure
(1) The outer frame consists of Case (A) [4] and Case (B) [2]. The printed circuit board is located inside this frame. (2) The printed circuit board consists of other electronic devices to permit rapid charging and protect against overcharging. AC-Adapter [7]
Tapping Screw Printed Circuit Board [3]
(W/Flange) D3 x 20 [5]
Case (A) [4]
Terminal (A)
Case (B) [2]
Fig. 2
8. PRECAUTIONS ON DISASSEMBLY AND REASSEMBLY [Bold] numbers in the descriptions below correspond to item numbers in the parts list and exploded assembly diagram. 8-1. Disassembly
(1) Remove the two Tapping Screw (W/Flange) D3 x 20 [5], and take off Case (B) [2]. The Printed Circuit Board [3] and AC-Adapter [7] cord can then be taken out in an assembled body. (2) To separate the Printed Circuit Board [3] and AC-Adapter [7] cord, use a soldering iron to melt the soldered portions. NOTE: Ideally, the soldered portions should be freed with a solder absorber. soldering iron must be used, use one with a rated power of 35 W.
When a
8-2. Reassembly
For reassembly, reverse the following disassembly steps. However, special attention should be taken to ensure that the Battery Set lamp, AC-Adapter [7] cord and charging terminals are properly installed in their prescribed grooves.
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8-3. Confirmation after Reassembly
Upon completing reassembly, confirm the items below. (1) Confirm the following after reassembly: • Plug the AC-Adapter [7] into the AC power outlet. Use a tester to confirm that the voltage on terminal (A) is within the specified range below. Model UC 9SF
Terminal (A) Check terminal + - T
Voltage range (V) 16.6 to 20.7
UC 12SF
+ - T
20.7 to 25.6
UC 14SF
+ - -
22.6 to 28.0
UC 18SF
+ - -
28.1 to 34.2
In Adaptors UC 9SF and UC 12SF, the T terminal functions as a negative terminal - . • Connect the battery to the charger for charging. Make sure the Battery Set lamp lights. (2) Measure the insulation resistance and conduct a dielectric strength test. Insulation Resistance: 10 megohms or more between the plug blade of the cord and the nameplate or fastening screws on the case as measured with a DC 500 V 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 nameplate or fastening screws on the case The dielectric strength test should be conducted at the following voltage: Voltage on the nameplate
Test voltage
230 V
AC 3,750 V (for 1 minute)
CAUTION: Insulation resistance must be measured between the plug blade and the nameplate or fastening screws on the case; the dielectric strength test must be conducted between the plug blade and the charging terminal blade. Under no circumstances should tests be conducted between both plug blades or both charging terminal blades, which may cause the charger to burn out.
9. TROUBLESHOOTING GUIDE 9-1. Failure During Charging
Failure
The battery was inserted into the adapter, but the Battery Set lamp remains off.
To Failure Mode (A)
The battery was inserted into the adapter and the Battery Set lamp goes on, but charging does not start.
To Failure Mode (B)
Abnormal heat is generated.
To Failure Mode (C)
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(1) Failure Mode (A) Steps and Repair Procedures The battery was inserted into the adapter, but the Battery Set lamp remains off. Use a tester to check voltage.
Rated voltage on power outlet?
NO
Apply rated voltage. The rated voltage is 230 VAC.
YES
YES
Adapter terminal resistance 1kΩ or more?
Replace AC adapter.
NO
YES
Charger and terminal (A) dirty?
Clean both parts. Check for terminal (A) deformation.
NO
NO
(S)-(-) battery terminal resistance 2k to 100kΩ?
YES
The printed circuit board is defective.
Replace the printed circuit board unit.
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Replace battery.
(2) Failure Mode (B) Steps and Repair Procedures
The battery was inserted into the adapter and the Battery Set lamp goes on, but charging does not start.
NO
Ambient temperature OK?
Regulate ambient temperature. Set ambient temperature in the range of 0 to 40°C.
YES
YES
Battery body hot?
The battery is not charged if the body temperature is 40°C or higher. Fully cool the battery and recharge it.
Use a tester to check voltage.
NO
Rated voltage on power outlet?
NO
Apply rated voltage. The rated voltage is AC 230 V.
YES
NO
Battery voltage stable?
YES
NO
Can the battery be charged by another charger?
YES The printed circuit board is defective.
Replace the printed circuit board unit.
Replace the battery.
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(3) Failure Mode (C) Steps and Repair Procedures
Too hot battery or adapter
YES Battery too hot?
Replace the battery.
The battery is hot immediately after full charging. It's not a problem.
NO
AC adapter too hot?
YES Use a tester to check voltage.
NO Rated voltage on power outlet?
YES The printed circuit board is defective.
Replace the printed circuit board unit.
Replace the adapter.
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NO
Apply rated voltage. The rated voltage is AC 230 V. A higher supply voltage may break the adapter.
10. STANDARD REPAIR TIME (UNIT) SCHEDULES MODEL
Variable Fixed
10
20
30
Work Flow
UC 9SF UC 12SF UC 14SF UC 18SF
General Assembly Case (B) Case (A) Printed Circuit Board AC-Adapter
-10-
40
50
60 min.
LIST NO. H857
CHARGER Model UC 9SF
2010 • 3 • 11 (E1)
4
3
2
1
5
7
6
PARTS ITEM NO.
UC 9SF
CODE NO.
1
DESCRIPTION
NO. USED
NAME PLATE
1
2
332-725
CASE (B)
1
3
332-739
PRINTED CIRCUIT BOARD
1
4
332-721
CASE (A)
1
5
300-036
TAPPING SCREW (W/FLANGE) D3 X 20
2
CAUTION LABEL
1
*
7
6 332-735
AC-ADAPTER (9.6V U.K)
1
*
7
332-736
AC-ADAPTER (9.6V EURO)
1
-2-
*ALTERNATIVE PARTS
REMARKS
Printed in Japan 03 - 10 (100311N)
LIST NO. H858
CHARGER Model UC 12SF
2010 • 3 • 11 (E1)
4
3
2
1
5
7
6
PARTS ITEM NO.
UC 12SF
CODE NO.
1
DESCRIPTION
NO. USED
NAME PLATE
1
2
332-724
CASE (B)
1
3
332-739
PRINTED CIRCUIT BOARD
1
4
332-721
CASE (A)
1
5
300-036
TAPPING SCREW (W/FLANGE) D3 X 20
2
CAUTION LABEL
1
*
7
6 332-732
AC-ADAPTER (12V U.K)
1
*
7
332-733
AC-ADAPTER (12V EURO)
1
-2-
*ALTERNATIVE PARTS
REMARKS
Printed in Japan 03 - 10 (100311N)
LIST NO. H859
CHARGER Model UC 14SF
2010 • 3 • 11 (E1)
4
3
2
1
5
7
6
PARTS ITEM NO.
UC 14SF
CODE NO.
1
DESCRIPTION
NO. USED
NAME PLATE
1
2
332-723
CASE (B)
1
3
332-740
PRINTED CIRCUIT BOARD
1
4
332-721
CASE (A)
1
5
300-036
TAPPING SCREW (W/FLANGE) D3 X 20
2
CAUTION LABEL
1
*
7
6 332-729
AC-ADAPTER (14.4V U.K)
1
*
7
332-730
AC-ADAPTER (14.4V EURO)
1
-2-
*ALTERNATIVE PARTS
REMARKS
Printed in Japan 03 - 10 (100311N)
LIST NO. H860
CHARGER Model UC 18SF
2010 • 3 • 11 (E1)
4
3
2
1
5
7
6
PARTS ITEM NO.
UC 18SF
CODE NO.
1
DESCRIPTION
NO. USED
NAME PLATE
1
2
332-722
CASE (B)
1
3
332-738
PRINTED CIRCUIT BOARD
1
4
332-721
CASE (A)
1
5
300-036
TAPPING SCREW (W/FLANGE) D3 X 20
2
CAUTION LABEL
1
*
7
6 332-726
AC-ADAPTER (18V U.K)
1
*
7
332-727
AC-ADAPTER (18V EURO)
1
-2-
*ALTERNATIVE PARTS
REMARKS
Printed in Japan 03 - 10 (100311N)
