Hitachi DS 14DAL Technical Data And Service Manual
TECHNICAL DATA
AND
SERVICE MANUAL
CORDLESS DRIVER DRILL
DS 14DAL
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
LIST No. G858
Oct. 2006
D
MODEL
DS 14DAL
Hitachi
Power Tools
REMARK:
Throughout this TECHNICAL DATA AND SERVICE MANUAL, a symbol(s)
is(are) used in the place of company name(s) and model name(s) of our
competitor(s). The symbol(s) utilized here is(are) as follows:
Symbols Utilized
Competitors
Company Name
Model Name
MAKITA
BDF440
C
Page
CONTENTS
1. PRODUCT NAME .......................................................................................................................... 1
2. MARKETING OBJECTIVE ............................................................................................................ 1
3. APPLICATIONS .............................................................................................................................1
4. SELLING POINTS .........................................................................................................................2
4-1. Selling Point Descriptions ............................................................................................................. 3
5. SPECIFICATIONS .........................................................................................................................5
6. COMPARISONS WITH SIMILAR PRODUCTS ............................................................................. 6
6-1. Comparisons of Specifications Listed on Catalogs ....................................................................... 6
7. WORKING PERFORMANCE PER SINGLE CHARGE ................................................................. 7
8. PRECAUTIONS IN SALES PROMOTION ....................................................................................8
8-1. Safety Instructions ........................................................................................................................ 8
8-2. Inherent Drawbacks of Cordless Driver Drills Requiring Particular Attention
During Sales Promotion .............................................................................................................. 10
9. REFERENCE MATERIALS .........................................................................................................12
9-1. Feedback System ....................................................................................................................... 12
10. REPAIR GUIDE ......................................................................................................................... 13
10-1. Precautions in Disassembly and Reassembly .......................................................................... 13
10-2. Precautions in Disassembly and Reassembly of Battery Charger ........................................... 21
11. STANDARD REPAIR TIME (UNIT) SCHEDULES ..................................................................... 22
Assembly Diagram for DS 14DAL
--- 1 ---
1. PRODUCT NAME
Hitachi 14.4 V Cordless Driver Drill, Model DS 14DAL
2. MARKETING OBJECTIVE
The new Model DS 14DAL is a compact and lightweight cordless driver drill. It is the upgraded version of the well-
reputed Model DS 12DM. Features of the Model DS 14DAL include the following:
(1) Greater maximum torque
(2) Equipped with the Type EBM 1430R lithium-ion battery
We aim to expand sales with the Model DS 14DAL.
NOTE: The Type EBM 1430R 14.4 V lithium-ion battery that comes with the Model DS 14DAL is not
interchangeable with the Type EBL 1430 lithium-ion battery that has already been on the market.
3. APPLICATIONS
Tightening and loosening wood screws, tapping screws, machine screws and nuts
Drilling into wood, metal and plastic materials
--- 2 ---
Higher performance
Greater maximum torque
• Maximum torque 38 N•m
(386 kgf•cm)
Improved overload durability
(improved cooling efficiency)
• Large radial fan
• Optimally designed cooling
air path
22-stage clutch
• Fine torque adjustment
Manual tightening mechanism
• Usable as a manual
screwdriver
Long-life lithium-ion battery
The lithium-ion battery is of a safe design thanks to the built-in
overdischarge protection circuit, overload protection circuit, and
voltage monitoring circuit for each cell.
• The battery is equipped with the overdischarge protection
circuit to prevent overdischarge (overuse) of the battery.
• The battery is equipped with the voltage monitoring circuit for
each cell to prevent overcharge (excessive charging) of the
battery.
Easier to operate
Hook with a yellow LED light
• LED light is convenient for
operation in a dark place.
• Convenient for carrying and
storing the tool.
• Angle-adjustable in 5 steps
with one-touch simple
operation
• Mountable on either side
Injection-molded case
• Big storage space
• Durable hinges
Slip-resistant clutch dial
• Soft and easy to turn thanks
to the elastomer resin
Comfortably shaped handle
• Soft and slip-resistant thanks
to the elastomer resin
• Slim handle
Easier to maintain
Externally replaceable carbon brushes
• The carbon brushes are singly
replaceable.
Separate-type motor
• The armature is singly replaceable.
4. SELLING POINTS
Number of charging/
discharging
Model DS 14DAL
+
Type EBM 1430R
(Lithium-ion battery)
C
(Lithium-ion battery)
Approx. 1,500 500
--- 3 ---
1.6
4-1. Selling Point Descriptions
4-1-1. Greater maximum torque
The Model DS 14DAL is a high-power driver drill with its maximum torque 38 N•m {386 kgf•cm} thanks to the
adoption of the powerful rare-earth magnet motor that is well-reputed in the Model DS 12DM. It enables drilling
large-diameter holes and tightening large-diameter screws. (See "7. WORKING PERFORMANCE PER SINGLE
CHARGE" for comparison of working speed as a guide.)
DS 14DAL
EBM1430R (3.0)
203
237
76
1.6
38 {386 kgf•cm}
DS 12DM
C
EB1230HL (3.0)
Battery (Capacity [Ah])
Entire length [mm]
Entire height [mm]
Entire width [mm]
Weight [kg]
Maximum torque [N•m]
229
203
36 {367 kgf•cm}
220
73
1.7
EB1220BL (2.0)
186
242
79
1.6
38 (386 kgf•cm)
4-1-2. Long-life 14.4 V lithium-ion battery Type EBM 1430R
The Type EBM 1430R lithium-ion battery is equipped with the overdischarge protection circuit, overload protection
circuit, and voltage monitoring circuit for each cell to prevent reduction of the battery life due to overdischarge
(overuse) or overcharge (excessive charging). The Type EBM 1430R lithium-ion battery can be charged/
discharged about 1,500 times, while C can be charged/discharged about 500.
Precautions for use of the Type EBM 1430R lithium-ion battery
The Type EBM 1430R lithium-ion battery is equipped with a protective function that automatically stops output to
extend the battery life. The motor may stop automatically in either of the following case or even if the
switch is depressed continuously during operation. This is because the protective function is activated.
The battery is not faulty.
The motor may stop automatically when the remaining battery level is low (when the battery voltage is
decreased to about 8 V). Charge the battery immediately in such case.
The motor may stop if the Model DS 14DAL is overloaded. In such case, release the switch and eliminate the
cause of the overload problem. Then the Model DS 14DAL is operable.
Please instruct the customers on the above precautions.
NOTE The Type EBM 1430R lithium-ion battery that comes with the Model DS 14DAL is not
interchangeable with the Type EBL 1430 lithium-ion battery that has already been on the market.
4-1-3. Hook with a yellow LED light
This hook is convenient for carrying the Model DS 14DAL by hanging on a belt and also for storing. In addition,
the yellow LED light can be conveniently used as a subsidiary light for operation in a dark place. Features of the
hook include the following:
The hook is designed to be drawn out quickly when needed and retracted quickly when not needed with one-
touch simple operation to prevent from interfering with other work. The hook angle is adjustable in 5 steps.
The hook is mountable on either side. The hook can be easily mounted by using a flat-blade screwdriver or a
coin.
1
2
1
2
1
2
--- 4 ---
The yellow LED light is usable by turning on the independent light switch when needed. It is designed to light
an object diagonally to avoid creating a shadow of the drill bit or the operator's hand supporting a screw.
Thanks to the internal circuit, the LED light is automatically turned off about 15 minutes later.
4-1-4. Injection-molded case
The injection-molded case has enough storage space to accommodate many accessories. In addition, the case is
more durable than the conventional one thanks to the new hinge brackets.
4-1-5. Improved overload durability (improved cooling efficiency)
The Model DS 14DAL is equipped with the same separate-type motor as a driver drill with a power cord. To
improve the overload durability in continuous operation, the large radial fan increases the volume of air and the
optimally designed cooling air path that is descended from the Model DS 12DM increases the cooling efficiency.
4-1-6. Slip-resistant 22-stage clutch dial
The 22-stage clutch dial ensures fine torque adjustment. The clutch dial is made of elastomer resin (soft resin). It
is soft, slip-resistant and easy to operate for torque setting.
4-1-7. Manual tightening mechanism
When a screw cannot be driven completely with the torque set by the clutch dial, turn off the switch and use the
Model DS 14DAL as a screwdriver by turning the main body manually (maximum manual tightening torque: 22.5
N•m {230 kgf•cm}).
4-1-8. Comfortably shaped handle
The handle is soft, slip-resistant, and comfortably fits in a hand thanks to the elastomer resin. In addition, the
switch section of the handle is thinned for comfortable gripping.
4-1-9. Externally replaceable carbon brushes and separate-type motor
The carbon brushes are replaceable from the outside. The armature is also singly replaceable because the Model
DS 14DAL is equipped with the same separate-type motor as a driver drill with a power cord. Thus the Model
DS 14DAL is easier to maintain.
4-1-10. Others
The switch terminal is isolated to prevent scratching the contact area due to vibration of the battery.
The battery contact (holding) area of the housing is increased to prevent rattling of the battery due to wear.
3
Diagonal lighting to avoid
creating a shadow
3
Mountable on either side
2
Angle-adjustable in 5 steps
1
--- 6 ---
Slip torque
[22 positions]
0.49 to 4.4 N•m
{5 to 45 kgf•cm}
[22 positions]
0.49 to 4.4 N•m
{5 to 45 kgf•cm)
Not listed
Wood screw
6.8 mm dia. x 50 mm6.8 mm dia. x 50 mm
6. COMPARISONS WITH SIMILAR PRODUCTS
6-1. Comparisons of Specifications Listed on Catalogs
Maker
Model
Capacity
Screw
driving
Drilling
No-load
rotation
speed
Low
High
HITACHI
DS 14DAL
0 to 350/min
0 to 1,200/min
0 to 350/min
0 to 1,200/min
DS 12DM
C
0 to 400/min
0 to 1,400/min
Feedback
Switch
Provided
Provided
203 mm
Provided
Provided
Not listed
Provided Brake
Weight
1.6 kg
Overall length
Overall height
237 mm
Mild steel
Aluminum
Wood
13 mm
13 mm
27 mm
13 mm
13 mm
27 mm
13 mm
13 mm
27 mm
Tightening type
Tightening type
Tightening type
Preventive mechanism
against loosening
Drill chuck
Keyless
Type
Plastic Plastic
Sleeve material
Battery
Nominal voltage (V)
12 14.4
Reversing switch Push-button type Push-button type
Push-button type
Clutch dial
Spotlight
Elastomer and polyamide resins
Provided
Elastomer and polyamide resins
Provided
Unknown
Provided
Hook
Strap
Provided (One-touch type)
Provided
Provided (One-touch type)
Provided
Provided (Fixed with fittings)
Provided
Nominal capacity (Ah)
3.0
Type EBM 1430R
45
Overall width 76 mm
2MRK (2HLFK) (2BLFK)
Machine screw
6 mm 6 mm
Max. torque
38.0 N•m {386 kgf•cm} 36.0 N•m {367 kgf•cm}
Not listed
Low
High
10.0 N•m {102 kgf•cm}
38.0 N•m {386 kgf•cm}
[16 positions]
Motor
Carbon brushes
DC magnet
External
Internal
2-speed gear
Provided
Manual tightening mechanism
Provided Provided
Provided
External
DC magnet
DC magnet
Provided
Provided
9.0 N•m {92 kgf•cm}
Capacity
13 mm
Keyless
Nominal charging time (min.)
14.4
3.0
203 mm
1.7 kg
229 mm
73 mm
186 mm
1.6 kg
242 mm
79 mm
2270 50
3.0 2.0
EB 1230HL EB 1220BL
Auxiliary symbol
13 mm
Keyless
Plastic
13 mm
6.8 mm dia. x 50 mm
6 mm
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