Makita DC1804 (MJ) Handbuch

Continuous Rating (W)

Voltage (V) Cycle (Hz) Input Output Max. Output(W)

110 - 120

120

220

220 - 240

230 - 240

Models No.

Description

PRODUCT

Current (A)

TECHNICAL INFORMATION

CONCEPTION AND MAIN APPLICATIONS

Specification

P 1 / 3

Dimensions : mm ( " )

Width ( W )

Height ( H )

Length ( L )

50 / 60

193 (7-5/8)

92 (3-5/8)

78 (3-1/16)

Cord length : m (ft )

Net weight

Output voltage DC : V

Output current : A

Charging

time : min.

for 1.3Ah Ni-Cd. battery

for 2.0Ah Ni-Cd. battery

for 2.2Ah Ni-MH. battery

for 2.6Ah Ni-MH. battery

for 3.0Ah Ni-MH. battery

Approx. 30

Approx. 45

Approx. 50

Approx. 60

Approx. 70

7.2

2.6

9.6 12 14.4 18

Protection against

electric shock 110V - 120V

220V - 240V

grounding (earthing)

double insulation

2.0 (6.6)

0.39 (0.86)

DC1804

Charger

Multi voltage charger DC1804 is the renewed model of DC1803.

Its features and benefits are

(1) Approx. 10-20 minutes shorter charging time in comparing

with DC1801.

(2) Maintenance (trickle) charging system keeps the full charged

condition for 24 hours, even if the battery is left in this charger

after finishing of charging process.

(3) Downsized ; The dimensions have been reduced to those of DC1413.

< Note > The above figures about charging time may differ from condition to condition on batteries' temperature

or room temperature.

P 2 / 3

Repair

< 1 > The circuit board cannot be repaired, because the circuit itself is molded on the board .

It has to be replaced entirely with new one.

< 2 > In case of damaged varistor or fuse, they can be repaired according to the following procedure without

replacing the circuit board.

(2) How to find broken fuse (F2)

a. If the charging light flashes alternately red and green, when the battery has been inserted into the charger

connected with power source, fuse (F2) may be broken.

b. If the easily conductive material other than battery would be connected with charger's terminals

by mistake, fuse (F2) can be easily broken by short circuit in the charger.

c. In case of no damaged fuse (F2) but charging light flashing alternately red and green, the charger can be broken

for other reason. The circuit board has to be replaced in this case.

(1) How to find broken varistor

a. In case that the surface of varistor has broken or has become black, and fuse (F1) has been disconnected,

the varistor has been damaged.

b. Varistor can be damaged easily, if the charger is plugged in a double voltage of the rating one.

c. In case of no damaged varistor but disconnected fuse (F1), the charger can be broken for other reason.

The circuit board has to be replaced in this case.

C2 T1

TH1

VS1

F1 F2

CN1

LED1

LED2

Power supply cord

Varistor

Fuse (F1) Fuse (F2)

Top view of circuit board

Repair P 3/ 3

(3) Replacing damaged varistor

a. Varistor is assembled on circuit board with solder. Remove it from circuit board

with soldering iron.

(4) Replacing damaged fuse

a. Fuse is assembled on circuit board with solder. Remove it from circuit board with soldering iron.

b.Assemble new fuse to the circuit board by soldering.

c. Cut the surplus of fuse's wire with nipper.

b.Assemble new varistor to the circuit board by soldering.

c. Cut the surplus of varistor's wire with nipper.

Varistor Circuit board

When removing varistor, melt this part with soldering iron

and remove varistor.

Varistor

Circuit board

Less than 3mm

Fig.2

Fig.3

Fig.4

Fuse

When removing fuse, melt this part with soldering iron

and remove fuse.

Less than 3mm

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