Makita MAKSTAR DC18RA Manual

Continuous Rating (W)
Voltage (V) Cycle (Hz) Input Output Max. Output(W)
110-120
DC 7.2 - 18
DC 9.0
YesDouble Insulation
2.0 (6.6)
1.0 (2.2)
220-240
50 - 60
50 - 60
240
240
Models No.
Description
PRODUCT
Current (A)
TECHNICAL INFORMATION
CONCEPT AND MAIN APPLICATIONS
Specification
Optional accessories
P 1 / 5
DC18RA
Charger
Dimensions: mm (")
Width (W)
Height (H)
Length (L) 164 (6-1/2)
190 (7-1/2)
106 (4-3/16)
L
W
H
Power Supply Cord: m ( ft )
Net weight: Kg (lbs)
Output voltage : V
* ADP03 Automatic Refreshing Adapter
* ADP04 Interchangeable Adapter
Output current : A
< Note > The above figures about charging time may differ from condition to condition on batteries' temperature
or room temperature.
Considering the future demand for slide type 7.2V Li-ion and Ni-MH
battery, the above product has been launched with wider changeable range.
This new face contains trickle charging function.
Its brief benefits are mentioned below.
1. Only 22 minutes for full-charge of 3.0 Ah Li-ion Battery
2. Innovative computer controlled charging system realized most suitable
charge by making the digital communication between charger and battery.
3. Cooling system to keep the ideal temperature for charge.
4. Power display for battery; It displays the charging amounts of battery
in two steps. (less than 80% or more than 80% of charge)
5. The adapter ADP04 (optional accessory) enables to charge the existing
Ni-Cd and Ni-MH batteries.
6. The adapter ADP03 (optional accessory) enables to refresh inactive
batteries
7. Selectable melody sound of completed charging
Li-ion BL1815
Cell Voltage: VCapacity: Ah
Charging
Time
Battery
Approx. 15 min.
Approx. 20 min.
Approx. 22 min.
Approx. 30 min.
18
9.6
1.5
BL1830
183.0
Li-ion 14.43.0 BL1430 / A
14.43.3 BH1433
Ni-MH
Ni-MH
BH1420
BH1220 / C
14.4
12
BH9020 / A
2.0
2.0
2.0
9.6 BH90333.3
9.6
Ni-MH BH9033A3.3
12
Ni-MH 3.3 BH1233/ C

P 2 / 5
Repair
[1] DISASSEMBLY/ASSEMBLY
[1] -1. Terminal Unit
Fig. 1 Fig. 2
Fig. 3
CAUTION: Disconnect the charger from the power source for safety
before repair/ maintenance !
DISASSEMBLING
Cap 13: 4 pcs.
Tapping
Screw 4x20: 4 pcs.
Charger Case
Cover
Charger Case
Cover
Charger Case
Complete
1. Remove four caps 13 and four 4x20 tapping screws. Consequently, charger case complete can be separated
from charger case cover. (Fig. 1)
< Note >
When removing charger case complete from charger case cover, be sure to put the product on the work bench, with
charger case complete faced to the upper side.
2. Loosen band with which bundles lead wires of terminal unit and that of cirocco fan. Disconnect connector 1 and
connector 2, and remove terminal unit from charger case cover. (Fig. 2)
Compression
Spring 4
Terminal Unit
Band
Connector 1
Band
Connector 2
ASSEMBLING
1. Insert compression spring 4 over the boss for accepting
the compression spring. (Fig. 3)
2. Insert three legs of terminal unit into the three bosses
of charger case cover. (Fig. 3)
3. Connect the connector 1 to the joint for connector 1 and
connector 2 to the joint for the connector 2. (Fig. 3)
4. Bundle the lead wires with band. Refer to Fig. 1.
5. Put the lead wires by the rib and wall of charger case cover
as instructed [2] Wiring Diagram in page 5.
6. Assemble charger case complete with four 4 x20 tapping
screws and four caps 13 firmly.
Compression
Spring 4
Boss for accepting
the compression
spring
Connector 1
Connector 2
Terminal Unit
Joint for
the connector 1
Joint for
the connector 2
Connector 1
Connector 2

P 3 / 5
Repair
[1] DISASSEMBLY/ASSEMBLY
[1] -2. Terminal Cover
Fig. 5 Fig. 5A
DISASSEMBLING
ASSEMBLING
Fig. 4
Terminal Cover
1. Separate charger case cover from charger case complete. (Fig. 1)
2. Remove PT3x10 tapping screw and disassemble terminal cover.
<Note> Be sure to hold two compression springs with your finger so as not to jump out of terminal cover
when disassembling terminal cover.
1. While setting two 4 compression springs in terminal cover and aligning them with the bosses of charger case
complete, fit the rib of terminal cover to that of charger case complete. (Fig. 4.)
2. Fasten PT3x10 tapping screw through elliptic hole of charger case complete into the screw hole of terminal
cover. (Refer to Fig. 4.)
3. Make sure that terminal cover can return to the original position by the help of compression spring 4, after
pushing terminal cover toward the charging position.
Charger Case Cover
Compression Spring 4
Tapping Screw
PT3x10
Rib of Charger
Case Complete
Rib of Terminal
Cover
Pt. No.233194-8
Compression spring 4 for Terminal Cover
*L (Free Length) : 25mm
*D (Coil Diameter): 4.8mm
Pt. No.231474-6
Compression spring 4 for Terminal Unit
*L (Free Length) : 20mm
*D (Coil Diameter): 5.0mm
Compression Spring 4
< Note >
Compression Spring 4 is used also as a cushion for terminal unit as illustrated in Fig. 3. However, this compression
spring 4 is different from those for terminal cover in the free length and coil diameter. (Fig. 5A)
Here is boss for accepting
compression spring 4.
Here is boss for accepting
compression spring 4.
L
D

P 4 / 5
Repair
[1] DISASSEMBLY/ASSEMBLY
[1] -3. Varistor and Fuse
Fig. 7
Varistor
Varistor
Pt. No.647306-1 for High Voltage H= 22mm
Pt. No.647321-5 for Low voltage H= 20mm
Distinction of high voltage from low voltage
2) Replacing Varistor/Fuse
The varistors are different, and installs depending on the voltage. The distinction can be made as illustrated in Fig. 6.
Varistor/fuse is soldered on the charging circuit. Remove a broken varistor/fuse with soldering iron.
And solder brand-new one with soldering iron. (Fig. 7)
1) Types of Breakage
Sign of varistor breakage
a) Cracks in the surface of varistor
b) Black discolored surface of varistor
1. If fuse is broken, varistor is usually broken by showing the sign of breakage mentioned below.
In this case, replace fuse and varistor at the same time.
2. Only varistor can be damaged if charger is plugged in a power source at double the rated voltage.
In this case, replace varistor solely.
3. If fuse is broken while varistor is not broken, charging circuit can be broken.
In this case, replace charging circuit complete.
H
Fig. 6
Fuse
Charging
Circuit

Wiring diagram
P 5 / 5
Fig. D-1
Fig. D-2
Bundle the lead wires
with band.
In this area, put lead wires
between the rib and wall.
Be careful, not to pinch the
lead wires with the rib of
charger case cover.
Rib
Cirocco Fan Terminal Unit
Wall
Connector 1
have to be connected
firmly.
Connector 2
Connector 3
Put power supply cord into the labyrinth
formed rib.
Power Supply Cord
Charging
Circuit
Charging
Circuit