Makita Battery Charger DC18WA User Manual

ECHNICAL INFORMATION  
PRODUCT  
T
P 1/ 5  
DC18WA  
Charger  
Model No.  
Description  
CONCEPT AND MAIN APPLICATIONS  
H
Model DC18WA is a Makita charger developed specially for  
charging new slide-style Li-ion batteries.  
New Makita Li-ion batteries model BL1411G (14.4V-1.1Ah)  
and model BL1811G (18V-1.1Ah) can be charged approximately  
in 60 minutes. But the maktec band Li-ion batteries designed with  
the same concept, model L1451 (14.4V-1.1Ah) and model  
L1851(18V-1.1Ah) cannot be charged.  
L
W
Dimensions: mm (")  
In order to achieve a cost-competitive advantage, this charger  
is not equipped with:  
• Optimum charging system  
Length (L)  
Width (W)  
Height (H)  
150 (5-7/8)  
100 (3-15/16)  
65 (2-9/16)  
• Forced air-cooling system  
Also note that it is not compatible with:  
• ADP01 Interchangeable adapter  
• ADP02 Refreshing adapter  
• ADP03 Automatic refreshing adapter  
• ADP04 Interchangeable adapter  
Specification  
Continuous Rating (W)  
Voltage (V)  
Current (A)  
Cycle (Hz)  
Standby power (W)  
Input  
Output  
110 - 120  
100 - 240  
220 - 240  
50/60  
50/60  
50/60  
41  
41  
41  
0.3  
0.3  
0.3  
Output voltage  
Output current  
Charging time*  
DC 14.4 - 18V  
DC 1.65 - 1.1A  
approx. 60 min.  
Protection against electric shock  
Power supply cord: m (ft)  
Double insulation/ Grounding  
2.0 (6.6)  
Weight according to  
EPTA-Procedure 01/2003: kg (lbs)  
0.35 (0.77)  
*The charging time may depend on various conditions such as room temperature,  
the condition of battery, etc.  
Standard equipment  
No  
Optional accessories  
No  
 
P 3/ 5  
Repair  
[1] DISASSEMBLY/ASSEMBLY FOR DC18WA  
[1] -1. Terminal unit and Charger case complete (cont.)  
ASSEMBLING  
Assemble Charger case cover and Charger case complete as drawn in Fig. 3.  
Fig. 3  
1. Set Connector on Charging circuit as drawn below.  
Then insert Push mount tie into the hole of  
2. Push Lead wires firmly between the ribs and  
the wall of Charger case cover.  
Charging circuit until its levers are fixed in the hole.  
Charger case cover  
Push mount tie  
Charging circuit  
Connector  
Lead wires  
3. Assemble Charger case complete to Charger case cover.  
Be sure to securely tighten four tapping screws.  
[1] -2. Replacing Varistor and Fuse  
(1) If the cause of Battery charger trouble is the breakage of Varistor and Fuse, you need not replace  
Charging circuit, but simply replace Varistor and Fuse.  
Sign of Varistor breakage:  
Cracks exists in the surface of Varistor.  
Cause of Varistor breakage:  
Charger is plugged in a power source of two times or more than the rated voltage of Varistor.  
Note: If Fuse has burned out meanwhile Varistor is not broken, something else in Charging circuit is probably  
causing the trouble. In this case, replace Charger circuit.  
(2) Replace Varistor and Fuse. (Fig. 4)  
Fig. 4  
Varistor/ Fuse is soldered on Charging circuit.  
Fuse  
Remove a broken Varistor/ Fuse with soldering iron.  
And solder new one with soldering iron.  
Varistor  
 
P 4/ 5  
Repair  
[2] DISASSEMBLY/ASSEMBLY FOR DC18WA U  
[2] -1. Terminal unit and Charger case complete  
DISASSEMBLING  
Important: After disconnecting the charger from electric outlet, wait more than 5 minutes before repairing work.  
Replace Charger case complete as drawn in Figs. 5 and 6.  
Fig. 5  
1. Turn Charger upside down and remove  
four Tapping screws.  
2. Turn Charger over again and open Charger case complete from  
rear side.  
Charger case complete  
Tapping  
screws  
Terminal unit  
Charger case cover  
*Open from  
this side  
Indication of  
DC18WA U  
Note: Terminal unit is fully integral with Charger case complete.  
When it is necessary to replace Terminal unit, replacing  
Charger case complete and Charging condition label is required.  
Fig. 6  
3. Hold the connector on Charging circuit and pull up the connector.  
Charging circuit  
ASSEMBLING  
Connector  
Fig. 7  
Assemble Charger case complete to Charger case cover by  
reversing the disassembly procedure.  
Be sure to push Power supply cord firmly between the ribs  
and the wall of Charger case cover as drawn in Fig. 7.  
Power supply cord  
 
P 5/ 5  
Repair  
[2] DISASSEMBLY/ASSEMBLY FOR DC18WA U  
[2] -2. Replacing Varistor and Fuse  
Neither Varistor nor Fuse is supplied for the repair.  
When they have damages, replace Charging circuit with a new one.  
 

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