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T ECHNICAL INFORMATION
Models No. DC14SC
NEW TOOL
P1/8
Description Charger
CONCEPT AND MAIN APPLICATIONS
DC14SC has been added to our MAKSTAR series.
Developed as a less expensive MAKSTAR charger for slide type batteries, H
yet having the same features as the current DC14SA.
Its brief features are;
1. Innovative computer controlled charging system (conditioning charge)
provides the best charging point every time by making computerized
communication between the charger and battery. L W
2. Forced air-cooling fan keeps the battery temperature optimum for the
most efficient charging.
3. Charging time is only 30 minutes with 2.0Ah batteries. Dimensions: mm ( " )
4. Power display shows charging condition of the battery in 2 steps; Length (L) 165 (6-1/2)
less than 80% of full charge and more than 80% of full charge
Width (W) 190 (7-1/2)
For the time being, this product will be supplied exclusively to high voltage
(220V-240V) areas. Height (H) 106 (4-3/16)
Specification
Continuous Rating (W)
Voltage (V) Current (A) Cycle (Hz) Max. Output(W)
Input Output
220 - 240 50 / 60 90
D / C Output voltage: V 7.2 - 14.4
D / C Output current: A 3.5
1.7Ah 9.6V B9017A
9.6V BH9020, BH9020A approx. 30 min.
Charging 2.0Ah 12V BH1220, BH1220C
time for 14.4V BH1420
slide type 2.7Ah 14.4V BH1427 approx. 40 min.
batteries 9.6V BH9033, BH9033A
3.3Ah 12V BH1233, BH1233C approx. 50 min.
14.4V BH1433
Forced air-cooling fan Yes
Digital power display Yes
Protection against electric shock Double insulation
Power supply cord: m (ft) 2.0 (6.6)
Net weight: kg (lbs) 1.0 (2.2)
Optional accessories
* Interchangeable adapter ADP01
* Interchangeable adapter ADP04
* Auto refresh adapter ADP03
P2/8
Features and benefits
Short Charging Time Same Great Advantages as DC14SA
Only 30 minutes with 2.0 Ah slide type battery *Conditioning charge provides the best charging point
every time by detecting the history of battery's usage
through the computerized communication.
More Convenient with Optional Adapters. *Intelligent charging control provides the best output
current by sensing the battery temperature.
*Interchangeable adapter ADP01/ADP04 for charging the *Forced air-cooling fan keeps the battery temperature
existing insert type batteries optimum for the most efficient charging.
*Refresh adapter ADP02 and Auto refresh adapter ADP03 *Maintenance charge (trickle charging) keeps the
for refreshing inactive battery battery left on the charger fresh and fully charged.
*Digital power display lets the user know the condition
of the battery, as well as the current charge level of
the battery. (See the table below for details.)
Indicator lamp B
Indicator lamp A
Digital Power Display
Indicator lamps Charging level and Charging condition
Lamp A Lamp B Behavior of the battery
The charger is connected to power source.
Two lamps blink in green.
But the battery is not set in place on charger yet.
One red lamp turns on. Less than 80% of full charge
The battery is being charged.
Two red lamps turn on. 80% or more of full charge
Two green lamps turn on. Completion of the charging process.
The battery temperature
Two lamps blink in red.
Hot battery is being cooled is 70 C degrees or higher.
down, and not being charged. The battery temperature
One lamp blinks in red. is lower than 70 C degrees.
Impossible to charge, because;
Two lamps blink in red
*Service life of battery has ended, or
and green alternately.
*The vent of charger or battery is clogged with dust.
Battery is in the process of conditioning charge.
Turns on in yellow.
The time require to charge can be longer than usual.
Trouble with cooling system
Blinks in yellow. (The vent of charger or battery is clogged with dust, or the
cooling fan does not rotate.)
P3/8
Comparison of products
Makita
Model No. DC14SC DC14SA DC1414 DC1439
Slide type Insert type* Slide type Insert type* Insert type Insert type
Specifications
Output voltage: V 7.2 - 14.4 7.2 - 14.4 7.2 - 14.4 7.2 - 14.4 7.2 - 14.4 7.2 - 14.4
3.3Ah 50 50
Charging time (approximate): min.
3.0Ah 55 55 70 27
2.7Ah 40 40
Ni-MH
2.6Ah 45 45 60 23
2.2Ah 40 40 50 20
1.7/ 2.0Ah 30 30
2.0Ah 35 35 45 14
Ni-Cd
1.3Ah 23 23 30 9
Conditioning charge Yes Yes Yes Yes No Yes
Forced air-cooling fan Yes No Yes No No No
Charging control system
Yes No Yes No No No
(controls output current)
Maintenance charge Yes No Yes No Yes Yes
Power display for
Yes No Yes No No No
indicating charging status
Power supply cord: m (ft) 2.0 (6.6) 2.0 (6.6) 2.0 (6.6) 2.0 (6.6)
Length: mm 165 155 193 135
(")
Dimensions
(6-1/2) (6-1/8) (7-5/8) (5-5/16)
Width: mm 190 180 92 190
(") (7-1/2) (7-1/8) (3-5/8) (7-1/2)
Height: mm 106 110 78 68
(") (4-3/16) (4-5/16) (3-1/16) (2-11/16)
Net weight: kg 1.0 1.3 0.39 1.0
( lbs ) (2.2) (2.9) (0.86) (2.2)
*Insert type: This type of battery can be charged by attaching "Interchangeable adapter".
P4/ 8
Repair
[1] Removal/Installation of Charger Case Complete from/on Charger Case Cover
REMOVAL
1) Turn Charger upside down as illustrated in Fig. 1, and remove cap 13 (4 pcs), and then 4 tapping screws.
Fig. 1.
Tapping screw
Cap 13
Cap 13
Charger case cover
Tapping screw
Charger case complete
2) Place Charger as illustrated in Fig. 2, and remove charger case complete from charger case cover.
Fig. 2.
Charger case complete
Charger case cover
INSTALLATION
1) Make sure that the lead wires are put in place as illustrated in Fig. 6.
2) Install charger case complete on charger case cover, and secure the charger case complete
with four tapping screws. (Fig. 1)
3) Install cap 13 (4 pcs) on each tapping screw. (Fig. 1)
P5/8
Repair
[2] Removal/Installation of Terminal Unit and Scirocco Fan
REMOVAL
1) By disconnecting connector CN1 and CN2, terminal unit can be removed from charging circuit.
Be careful not to lose compression spring 4 which is mounted to the pin on charging circuit. (Fig. 3)
Fig. 3
Terminal unit
Connector CN2
Compression spring 4
Charging circuit
pin
Connector CN1
2 By disconnecting connector CN3, scirocco fan can be removed from charging circuit. (Fig. 4)
Fig. 4
Scirocco fan
Charging circuit
Connector CN3
P6/8
Repair
[2] Removal/Installation of Terminal Unit and Scirocco Fan (cont.)
INSTALLATION
Fig. 5
1) Install compression spring 4 on the boss
on charging circuit.
Terminal unit
And install terminal unit by inserting its
three legs into the holes in the three bosses.
(Fig. 5)
Compression spring 4
pin
Charging circuit
boss
2) Connect the connectors CN1 and CN2 firmly to charging circuit. (Fig. 3)
3) After connecting the connector CN3 of scirocco fan firmly with charging circuit, put scirocco fan in place. (Fig. 4)
4) Route the lead wires of terminal unit and scirocco fan as illustrated in Fig. 6.
Fig. 6
Scirocco fan
Terminal unit
Rib of
charger case Circuit
board
Bundle lead wires with Clip.
[3] Wiring Power Supply Cord
Put the power supply cord into the labyrinth shaped rib Power
of charger case cover. (Fig. 7) supply cord
Fig. 7
Circuit board
Power
supply cord
Charger case cover
P7/8
Repair
[4] Removal/Installation of Terminal Cover
REMOVAL
1) Separate charger case cover from charger case complete. (Fig. 1 and Fig. 2)
2) Remove terminal cover by removing tapping screw BT3x10. (Fig. 8)
Note: Be careful not to lose compression spring 4 when removing terminal cover.
Fig. 8
Terminal cover
Compression
spring 4 (2 pcs)
Charger case complete
Tapping screw BT3x10
INSTALLATION
1) Install compression spring 4 (2 pcs) on terminal cover. (Fig. 8)
2) Insert the boss of the terminal cover into the elliptic hole in charger case. (Fig. 9)
3) Compress the compression springs toward the wall of terminal cover in order to set them on the bosses
of charger case. (Fig. 10) And then, secure the terminal cover by tightening tapping screw BT3x10
to the recommended torque of 0.5N.m. (Fig. 10)
Note: Be careful not to confuse the compression spring 4 on terminal cover (Part No. 231474-6) and
the compression spring 4 under terminal unit (Part No. 233194-8), because they are not interchangeable.
Terminal cover
Charger case complete
Fig. 9 Fig. 10
Boss of Compression Wall of terminal cover
terminal cover spring 4
Terminal cover Compression
spring 4
Terminal cover
Elliptic hole
in charger case
Boss of charge
Charger case case complete
complete
Charger case
complete Boss of charge Tapping screw
case complete BT3x10
P8/8
Repair
[5] Replacing Varistor and Fuse
1) Types of Breakage
1. If fuse is broken, varistor is also broken in almost every case, 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 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, wholly replace charging circuit complete.
Sign of varistor breakage
Fig. 11
a) Cracks in the surface of varistor
b) Black discolored surface of varistor
Varistor
2) Replacing Varistor/Fuse
Varistor/fuse is soldered on the charging circuit.
Remove a broken varistor/fuse with soldering iron. Power supply cord
And solder brand-new one with soldering iron.
Fuse
Charging circuit
[6] Interchangeability with DC14SA
1) The following component parts are interchangeable with DC14SA.
Varistor (647306-1)
Sirocco fan (638084-4)
Compression spring 4 (233194-8)
Cap 13 (286255-3)
Fuse (652747-8)
Vinyl cords
2) Tapping screw BT4x20
DC14SA Interchangeability DC14SC
265874-8 266346-6
: This arrow means that 266346-6 can substitute for 265874-8
and that 265874-8 cannot substitute for 266346-6.
3) Except for the items listed above, the component parts are not interchangeable with DC14SA.