Hitachi DS 10DFL Technical Data And Service Manual

Brand: Hitachi

Model: DS 10DFL

Category: Cordless combi drills

Type: Technical Data And Service Manual

Hitachi DS 10DFL is a cordless driver drill that you can use for many home improvement projects or even professional tasks. It is lightweight and compact, so it is easy to handle and maneuver, even in tight spaces. The DS 10DFL has a keyless chuck, so you can quickly and easily change bits. It also has a 21-stage clutch, so you can adjust the torque to match the material you are working with. The drill has two speed settings, so you can choose the right speed for the job. It also has a built-in LED light, so you can see what you are doing, even in dark areas.

[ NEW FEATURES ]

Lightweight and compact

White LED light

Equipped with new lithium-ion battery

21-stage clutch

With 10-mm keyless chuck

Slim and soft-grip handle

Blow-molded case

The Model DS 10DFL is a cordless driver drill equipped with a lithium-ion battery (10.8/12 V PEAK). The Model

DS 10DFL has the following main features:

(1) Lightweight and compact

(2) White LED light to illuminate work area

(3) Equipped with newly developed lithium-ion battery (10.8/12 V PEAK, 1.5 Ah); fully rechargeable in 40 minutes

(4) 21-position adjustable torque setting for fastener tightening

We aim to expand our market share with the new Model DS 10DFL.

LIST No. H838

May. 2009

PRODUCT NAME

Hitachi 10.8 V Cordless Driver Drill

Model DS 10DFL

x Constructing electric facilities, assembling machines and servicing

x Tightening and loosening wood screws and machine screws

x Drilling into wood

MARKETING OBJECTIVE

APPLICATIONS

SELLING POINTS

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.

Sales Division

REMARK:

For more information about HANDLING INSTRUCTIONS, visit our website at:

http://www.hitachi-koki.com/manual_view_export/

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:

Competitors

Symbols Utilized

Company Name Model Name

B BOSCH GSR 10.8V -Li -2

C MAKITA DF330DW

CONTENTS

Page

SELLING POINTS -------------------------------------------------------------------------------------------------------------- 1

SPECIFICATIONS -------------------------------------------------------------------------------------------------------------- 4

1. Specifications------------------------------------------------------------------------------------------------------ 4

COMPARISON WITH SIMILAR PRODUCTS---------------------------------------------------------------------------- 5

1. Comparison of Specifications

-------------------------------------------------------------------------------------------------------- 5

2. Comparison of Drilling and Fastening Performance Per Charge

----------------------------------------------- 6

PRECAUTIONS IN SALES PROMOTION-------------------------------------------------------------------------------- 7

1. Safety Instructions

------------------------------------------------------------------------------------------------------------------------- 7

2. Inherent Drawbacks of Cordless Driver Drills Requiring Particular Attention

During Sales Promotion

----------------------------------------------------------------------------------------------------------------- 9

REPAIR GUIDE---------------------------------------------------------------------------------------------------------------- 10

1. Precautions on Disassembly and Reassembly

------------------------------------------------------------------------- 10

2. Precautions on Disassembly and Reassembly of Battery Charger

----------------------------------------- 19

STANDARD REPAIR TIME (UNIT) SCHEDULES-------------------------------------------------------------------- 20

Assembly Diagram for DS 10DFL

-1-

Trigger switch

Light

Pull the trigger switch to turn on the light.

The light remains on as long as the

trigger switch is being pulled. The light

goes out when the trigger switch is

released.

Lightweight and compact

The Model DS 10DFL has the shortest body in the class of 10.8-V cordless driver drills. It is easy to handle

and convenient for operation in narrow spaces.

HITACHI

Model

DS 10DFL

L x H x W (mm)

188 x 210 x 50

200 x 179 x 58 189 x 183 x 52

* The height includes the battery.

White LED light

The Model DS 10DFL is equipped with a built-in white LED light. The white LED light can be conveniently

used to provide operational lighting in dark places.

SELLING POINTS

-2-

x UC 10SFL

x BCL 1015

Equipped with new lithium-ion battery (BCL 1015)

The Type BCL 1015 lithium-ion battery (10.8/12 V PEAK, 1.5 Ah) can be fully charged by using the Model

UC 10SFL Charger in about 40 minutes.

The Type BCL 1015 is equipped with an overdischarge protection circuit, overload protection circuit, battery

overheat protection circuit and voltage monitoring circuit for each cell to prevent any reduction in battery

service life due to overdischarge (overuse) or overcharge (excessive charging). This battery is safe thanks

to these protection circuits.

Precautions on using the Type BCL 1015 lithium-ion battery

The Type BCL 1015 lithium-ion battery is equipped with a protective function that automatically stops output

to prolong battery service life. The motor may stop automatically due to the causes described in (1), (2) and

(3) below, even if the switch is continuously pressed during operation. This is because the protective

function described for each cause is activated. The motor is not faulty.

Protective

function

Cause of trouble Countermeasure

(1)

Overdischarge

protection circuit

Battery voltage drops to about 6 V Recharge the battery immediately.

(2)

Overload

protection circuit

Heavy-duty work

Release the switch and eliminate

the cause of the overload problem.

(3)

Battery overheat

protection circuit

Continuous operation

or heavy-duty work

Remove the battery from the tool

and allow it to cool down.

Explanation of 12V Peak :

Initial no-load voltage, when fully charged, peaks between 12 to 12.4 Volts.

During the battery cycle under a typical load, voltage averages at 10.8 Volts.

Voltage

Time / Discharge

12 V PEAK

10.8

Nominal Voltage

-3-

21-stage clutch

Rotate the clutch dial and line up the numbers “1, 3, 5, ...

21” on the clutch dial (or the black dot) with the triangle

mark on the outer body. Adjust the clutch dial in the weak

or strong torque direction according to the desired torque.

With 10-mm keyless chuck

The keyless chuck faccilitaes the fast and easy

replacement of driver bits. Simply hold the ring with

one hand and then turn the sleeve with the other

hand to replace driver bits.

Slim and soft-grip handle

The handle is covered with a soft elastomer. It is slim, soft, and slip-resistant.

Blow-molded case

The compact blow-molded case is convenient for carrying the tool.

Driver bit

Loosen

Tighten

Sleeve

Ring

Strong

Clutch dial

Triangle mark

Drill mark

Weak

-4-

1. Specifications

Model DS 10DFL

Screw driving

Machine screws ---6 mm (1/4")

Wood screws-------5.8 (dia.) x 45 mm (#12 x 1-25/32")

Capacity

Drilling

Metal -----------------10 mm (3/8”) for mild steel [1.6-mm thick (1/16”)]

12 mm (15/32”) for aluminum [1.6-mm thick (1/16”)]

Wood-----------------21 mm (13/16") [18-mm thick (11/16")]

Keyless chuck

Mount type----------Screw-on (UNIF 3/8” - 24)

Diameter ------------0.8 to 10 mm (1/32” to 3/8”)

Rotation speed Low: 0 to 300 min

–1

, High: 0 to 1,300 min

-1

Torque Slip torque ----------

0.5 to 4.0 N

•

m (5 to 40 kgf

•

cm, 4 to 35 in-lbs.) [21 stages]

Type of motor DC magnet motor

Type of switch

Trigger switch with pushing button for forward and reverse rotation

changeover (with brake)

Enclosure

Body------------------Glass fiber-reinforced polycarbonate resin (black)

and thermoplastic elastomer (green)

Battery ---------------Polycarbonate resin (black)

Charger--------------ABS resin (black)

Type of battery Sealed cylindrical lithium-ion storage battery

Nominal voltage DC 10.8/12 V PEAK

Nominal life Charging/discharging: approximately 1,000 times

Nominal capacity 1.5 Ah

Charging time

Approx. 40 minutes

(with UC 10SFL Charger at ambient temperature of 20°C (68°F))

Battery

(Type

BCL 1015)

Charging

temperature

0°C to 50°C (32°F to 122°F)

Charger

(Model UC 10SFL)

x Overcharge prevention system:

(1) Stop current detection

(2) Battery surface temperature detection (thermostat or thermistor)

x Input capacity: 35 W

x The maximum allowable temperature of the Type BCL 1015 battery is

50°C (122°F).

x Indication method: Pilot lamp to indicate charging state

x Pilot lamp: On------------------- During charging

Off------------------- Charging completed

Net

Main body (including Type BCL 1015 battery) -------- 1.0 kg (2.2 lbs.)

Charger unit (including cord) ------------------------------ 0.35 kg (0.8 lbs.)

Weight

Gross DS 10DFL (2LCSK) (including Type BCL 1015 battery)

Standard accessories

x Charger (UC 10SFL) ------------------------------------------------------------ 1

x Battery (Type BCL 1015) -------------------------------------------------------2

x Phillips driver bit (No. 2) --------------------------------------------------------1

x Battery cover-----------------------------------------------------------------------1

x Case ---------------------------------------------------------------------------------1

SPECIFICATIONS

-5-

1. Comparison of Specifications (Superior specifications: )

Maker HITACHI

Model name DS 10DFL

B (EURO) C (EURO)

Steel 10 mm (3/8”) 10 mm (3/8”) 10 mm (3/8”)

Drilling

Wood 21 mm (13/16”) 19 mm (3/4”) 21 mm (13/16”)

Wood

screws

5.8 (dia.) x 45 mm

(#12 x 1 - 25/32”)

Not indicated

5.1 (dia.) x 63 mm

(#11 x 2 - 31/64”)

Max.

capacity

Screw

driving

Machine screws

6 mm (1/4”) 7 mm (9/32”) 6 mm (1/4”)

Low 0 to 300 0 to 400 0 to 350

Rotation speed

( /min

-1

)

High 0 to 1,300 0 to 1,100 0 to 1,300

Max. torque

22 N

•m (224 kgf•cm)

(195 in-lbs.)

30 N•m (305 kgf•cm)

(266 in-lbs.)

24 N•m (245 kgf•cm)

(195 in-lbs.)

Max. torque (hard)

(actually measured values)

27 N•m (275 kgf•cm)

(239 in-lbs.)

34 N•m (346 kgf•cm)

(301 in-lbs.)

27 N•m (275 kgf•cm)

(239 in-lbs.)

[21 stages] [20 stages] [18 stages]

0.5 to 4.0 N•m

5 to 40 kgf•cm Not indicated Not indicated

Slip torque

(4 to 35 in-lbs.)

Chuck type 10-mm keyless chuck 10-mm keyless chuck 10-mm keyless chuck

Spindle lock function None Equipped Equipped

LED light Equipped Equipped Equipped

Soft–grip handle Equipped Equipped Equipped

Battery type Li-ion Li-ion Li-ion

Nominal capacity 1.5 Ah 1.3 Ah 1.3 Ah

Nominal voltage 10.8 V 10.8 V 10.8 V

Battery

Charging time *

40 min. 30 min. 50 min.

Overall length 188 mm (7 - 3/8”) 200 mm (7 - 7/8”) 189 mm (7 - 29/64”)

Overall height 210 mm (8 - 9/32”) 179 mm (7 - 1/16”) 183 mm (7 - 13/64”)

Dimensions

Width 50 mm (1 - 31/32”) 58 mm (2 - 5/16”) 53 mm (2 - 3/32”)

Weight 1.0 kg (2.2 lbs.) 1.1 kg (2.4 lbs.) 1.0 kg (2.2 lbs.)

*1): Charging time may vary depending on the type of charger used.

COMPARISON WITH SIMILAR PRODUCTS

-6-

2. Comparison of Drilling and Fastening Performance Per Charge

(Superior specifications: )

Working capacity

(*1)

Type of work Maker Model

0 *500 *1,000 *1,500 *2,000

0 100 200 300 400

Drilling

Speed

(sec./pc.)

HITACHI DS 10DFL

4.5

B4.8

C5.1

HITACHI DS 10DFL

9.7

B11.6

C 13.0

HITACHI DS 10DFL

3.7

B3.2

C3.5

HITACHI DS 10DFL

0.7

B0.8

C0.6

The table above shows examples of test data. The batteries used in this test are as follows:

Model DS 10DFL: 1.5Ah

B : 1.3Ah

C : 1.3Ah

* : Number of machine screws fastened per charge

*1: Number of holes or fasteners per charge

The table above shows examples of test data obtained using the battery provided as standard for this tool.

Since the actually measured values listed in the table above may vary depending on the sharpness of the

drill bit, workpiece hardness (particularly for wood materials), the moisture content of wood, charging

conditions, and operator skill. This data should therefore only be used as a comparative guide.

Wood boring

T18 (11/16”)

American pine

< High speed >

Mild steel

T1.6 (1/16”)

HSS Drill bit

6.5 mm dia.

(1/4”)

Wood screw

45 mm

(1to 25/32”)

5.8 mm dia.

(#12)

merican pine

< Low speed >

with pilot hole 4 mm dia.

< High speed >

Machine screw

6 mm (1/4”)

12 mm (15/32”)

18 mm dia.

(11/16”)

190

160

140

110

*1,120

*960

110

*930

170

-7-

1. Safety Instructions

In the interest of promoting the safest and most efficient use of the Model DS 10DFL Cordless Driver Drill by

all of our customers, it is very important when concluding a sale that the salesperson carefully ensure that

the buyer seriously recognizes the importance of the Handling Instructions, and fully understands the

precautions listed on the Caution Plate and Name Plate attached to each tool.

A. Handling instructions

Salespersons must be thoroughly familiar with the contents of the Handling Instructions in order to offer

appropriate guidance to customers. In particular, salespersons must have a thorough understanding of the

precautions on using cordless tools which differ from those on using ordinary electric power tools.

(1) Before use, ensure that the battery is fully charged.

A new battery is not fully charged. Even if the battery was fully charged at the factory, long periods of

inactivity, such as during shipping, cause the storage battery to lose its charge. Customers must be

instructed to fully recharge the battery prior to use.

(2) When recharging the storage battery, only use the exclusive Model UC 10SFL Charger provided

with the tool.

Due to the designed rapid-charging feature (for full recharging in about 40 minutes), using other battery

chargers is hazardous.

(3) Connect the charger only to an AC power outlet.

The use of any other power source (e.g., DC outlet, fuel-powered generator) will cause the charger to

overheat and burn out.

(4) Do not use any voltage-increasing equipment (e.g., transformer) between the power source and

the charger.

Using the charger at voltage higher than that indicated on the unit will result in malfunction.

(5) Charge the battery in an ambient temperature range of 0°C to 40°C (32°F to 104°F).

Special temperature-sensitive devices are employed in the charger to permit rapid charging. Ensure that

customers are instructed to use the charger in the indicated ambient temperature range. At temperatures

below 0°C (32°F), the thermostat will not function properly, and the storage battery may be overcharged.

At temperatures above 40°C (104°F), the storage battery cannot be sufficiently recharged. The optimum

temperature range is 20°C to 25°C (68°F to 77°F).

(6) The battery charger should not be used continuously.

Recharging more than three storage batteries in succession at high ambient temperature will cause the

temperature of the coils on the transformer to rise and the temperature fuse inserted inside the

transformer could inadvertently melt. After recharging one battery, please wait about 15 minutes before

recharging the next battery.

(7) Do not attempt to disassemble the storage battery or the charger.

Special devices, such as a thermostat, are built into the storage battery and charger to permit rapid

charging. Incorrect parts replacement and/or wiring will cause malfunctions that could result in fire or

other hazards. Instruct customers to bring these units to an authorized service center in the event repair

or replacement is necessary.

PRECAUTIONS ON SALES PROMOTION

-8-

(8) Disposal of the storage battery (Type BCL 1015).

Ensure that all customers understand that the Type BCL 1015 storage battery should be returned to a

Hitachi power tool sales outlet or an authorized service center when the batteries can no longer be

recharged or repaired. If thrown into a fire, the battery may explode.

B. Caution plate

(1) The following cautions are listed on the name plate attached to the main body of the Type DS 10DFL.

[ For the USA and Canada ]

Warning

x To reduce the risk of injury, the user must read the Instruction Manual.

x Risk of fire, burning or explosion. Use only with the BCL 1015 Battery.

AVERTISSEMENT

x Afin de reduire le risque de blessures, I’utilisateur doit lire le mode d’emploi.

(2) The following cautions are listed on the name plate attached to the Type BCL 1015 storage battery.

[ For Europe ]

[ For the USA and Canada ]

(3) The following cautions are listed on the name plate attached to the Type UC 10SFL storage battery.

[ For the USA and Canada ]

-9-

2. Inherent Drawbacks of Cordless Driver Drills Requiring Particular

Attention During Sales Promotion

The cordless driver drill offers many advantages, such as use in places where no power source is available,

and easy operation since there is no power cord. However, any cordless tool has certain inherent drawbacks.

Salespersons must be thoroughly familiar with these drawbacks in order to properly advise customers on

the most efficient use of the tool.

A. Suggestions and precautions on efficient use of the tool

(1) Use the cordless driver drill for comparatively light work.

Because cordless driver drills are battery driven, the motor output in these tools is relatively low

compared to conventional electric power tools. Accordingly, these tools are not suitable for the

continuous drilling of many holes in succession or drilling into particularly hard materials, both of which

impose a heavy load. Salespersons should therefore recommend conventional electric power tools for

such heavy work.

(2) Do not insert a foreign object into the body.

A foreign object inserted through a hole may cause failure. Please instruct customers to never insert a

foreign object into the body.

(3) Avoid "locking" of the motor.

Locking of the motor will cause an overload current that could result in motor overheating and/or rapid

deterioration of the battery. Salespersons should advise customers to immediately release the switch and

stop operation in case the motor becomes locked. (A jammed drill bit can be disengaged from the workpiece

material by setting the switch to reverse rotation or manually turning the main body of the tool.)

(4) Variations in the amount of work possible per charge.

Although the nominal chargeable capacity of the storage battery used with the Model DS 10DFL is 1.5 Ah,

the actual capacity may vary within 10% of that value depending on the ambient temperature during use

and charging, and the number of times the battery has been recharged. Note that other factors affecting

the amount of work possible per charge are the working conditions (e.g., ambient temperature, type and

moisture content of the workpiece, sharpness of the drill bit) and operational skill of the user.

(5) Precautions on using HSS Drill Bits.

Although the Model DS 10DFL is designed for drilling capacities of 21 mm (13/16”) in wood, 12 mm

(15/32”) in aluminum, and 10 mm (3/8”) in mild steel, these capabilities are not as efficient as those of

conventional electric power tools. In particular, when drilling through aluminum material with a 12-mm

(15/32”) drill bit, the drill tends to become locked when the drill bit penetrates the material. For this reason,

customers should be cautioned to reduce the thrust on the main drill body when drilling completely

through a material in order to prevent the tool from locking. Repeated locking of the drill causes

excessive current to flow from the battery, which not only decreases the amount of work possible per

charge, but could also result in motor overheating.

B. Suggestions and precautions on efficient use of the charger and storage battery

If the Type BCL 1015 storage battery is exposed to direct sunlight for an extended period or the tool has just

been operated for a long time, recharging may not be possible at a battery temperature above 50°C (122°F).

In such case, customers should be advised to place the battery in a shaded area with good airflow, and allow

sufficient cooling before recharging. This phenomenon is common to all existing batteries and chargers that

employ temperature-sensitive overcharge protection devices. The cooling time necessary before recharging

varies from a few minutes to about 40 minutes, depending on the load, duration of use, and ambient

temperature.

-10-

Be sure to remove the storage battery (BCL 1015) from the main body before servicing. Inadvertent

triggering of the switch with the storage battery connected will result in the danger of accidentally activating

the motor.

1. Precautions on Disassembly and Reassembly

The [Bold] numbers in the description below correspond to item numbers in the Parts List and exploded

assembly diagram for the Model DS 10DFL.

1. Removing the Drill Chuck 10MM

Turn the sleeve of Drill Chuck 10MM [2] counterclockwise (when viewed from the front) until the jaw of Drill

Chuck 10MM [2] fully opens. Unfasten Special Screw (Left Hand) (B) M5 X 25 [1] clockwise, and then remove it.

(Note that the screw tightens counterclockwise.) Next, align the drill mark [

] on Clutch Dial [4] with the

triangle mark (Ÿ) on Housing (A). (B) Set [29]. Finally, set Shift Knob [33] to "Low."

Fit a hexagonal Allen wrench into Drill Chuck 10MM [2], and then turn the chuck counterclockwise to remove

it. (If the chuck cannot be easily removed, use a hammer to tap the other end of the hexagonal Allen wrench

fitted into Drill Chuck 10MM [2], while being careful to avoid physical injury.)

2. Disassembling the housing

Remove eight Tapping Screw (W/Flange) D3 X 16 (Black) [38] that secure the main body in place, and then

slowly open Housing (A). (B) Set [29] while holding the housing part that contains the battery.

You can remove internal components as a complete assembly or by individual parts from opened Housing

(A). (B)Set [29]. To remove the all internal components together, hold Motor DC12V [28] and Clutch Dial [4],

and then lift both from Housing (A). (B) Set [29]. The internal components are the drive unit (Gear Box Ass’y [3]),

power supply unit (Motor DC12V [28], DC-Speed Control Switch [35], and Controller (B) [36]), Pushing

Button (A) [32], and Shift Knob [33].

3. Separating the drive unit from the power supply unit

While holding Gear Box Ass’y [3] and Motor DC12V [28], turn Motor DC12V [28] counterclockwise to

separate Gear Box Ass’y [3] from Motor DC12V [28] (with Motor Spacer [27] attached).

4. Disassembling the drive unit

(1) Disassembling the deceleration mechanism

Remove the two Screw Set D2 X 3.5 [17] from the side of Gear Case [9]. Then you can remove Shift

Arm [11] from Gear Case [9]. Next, remove Washer (A) [25], First Ring Gear [24], Planet Gear (A) Set [23]

(3 pieces), Pinion (B) [22], Washer (C) [21], Slide Ring Gear [20], Planet Gear (B) Set [19] (3 pieces),

and Pinion (C) [15] sequentially in this order.

Remove the two Needles [16] from the side of Gear Case [9], and then remove Washer (B) [14], Planet

Gear (C) Set [18] (3 pieces), Carrier [13], Ring Gear [12], and six Steel Balls D5 [10] sequentially in this

order.

NOTE: Since these parts are small, do not to lose the parts after removal. Use special care for six

Steel Balls D5 [10] because these balls may easily roll away.

(2) Disassembling the clutch mechanism

Remove Clutch Dial [4] and Click Spring [5] from Gear Case [9].

Turn Nut [6] fitted onto Gear Case [9] counterclockwise to remove it, and then remove Spring [7] and

Thrust Plate [8] sequentially in this order.

NOTE: Do not disassemble Gear Case [9].

Disassembl

REPAIR GUIDE

-11-

5. Disassembling the power supply unit

To remove Motor Spacer [27] from Motor DC12V [28], remove the two Machine Screw M3 X 8 [26].

To remove Internal Wire (Red) [30] and Internal Wire (Black) [31] from Motor DC12V [28], use a soldering

iron to unsolder the wires. Similarly, use the soldering iron to unsolder Internal Wire (Red) [30] and Internal

Wire (Black) [31] (from Motor DC12V [28]) when removing the wires from DC-Speed Control Switch [35].

DC-Speed Control Switch [35] (with one LED connected via a wire) and Controller (B) [36] are

interconnected with internal wires soldered at individual terminals of the switch and controller. Use the

soldering iron to unsolder the wires when removing the red internal wire (soldered at terminal (B+) of DC-

Speed Control Switch [35]) and white internal wire (soldered at terminal (B-) of DC-Speed Control Switch [35])

from DC-Speed Control Switch [35].

NOTE: Do not disassemble DC-Speed Control Switch [35] and Controller (B) [36].

-12-

Motor Spacer [27]

Internal Wire (Red) [30]

Internal Wire (Black) [31]

Internal wire (white) from

terminal (B-) of control switch

Controller (B) [36]

Motor DC 12V [28]

DC-Speed Control Switch [35]

Internal wire (red) from

terminal (B+) of control switch

Machine Screw M3 X 8 [26]

Precautions on reassembly: For reassembly, reverse the disassembling procedures, and be sure to follow

the precautions below.

1. Precautions on wiring the power supply unit

(1) Be sure to perform wiring as specified in the wiring diagram, and check the colors of wires and the

terminals to be connected by soldering in order to ensure correct wiring.

(2) When connecting Internal Wire (Red) [30] and Internal Wire (Black) [31] by soldering to Motor DC12V [28],

check for the correct polarities of Motor DC12V [28]. Keep in mind that the positive (+) terminal of Motor

DC12V [28] is marked in red.

(3) When connecting Internal Wire (Red) [30] and Internal Wire (Black) [31] by soldering to terminals of

DC-Speed Control Switch [35], check for the correct polarities and directions of soldering (by referring to

the motor polarity diagram).

(4) When connecting wires between Controller (B) [36] and DC-Speed Control Switch [35], check the colors

of wires and directions of soldering to ensure correct wiring. After soldering, protect the soldered parts

with insulating tape.

Reassembly

x Wiring diagram

-13-

x Wiring of the DC-Speed Control Switch

Positive (+) terminal Red marking

Negative (-) terminal

Internal wire (red)

from

Controller (B) [36]

Internal wire (white)

Internal wire (red)

Internal Wire (Black) [31]

Internal wire (red)

from

Controller (B) [36]

Internal wire (white)

from

Controller (B) [36]

Internal Wire (Red) [30]

x Motor polarities

-14-

Spring [7]

Convex feature of Nut [6]

Matching mark on

Gear Case [9]

Matching mark on

Gear Case [9]

Surface Y

Nut [6]

Gear Case [9]

Surface Z

Spring [7]

Thrust Plate [8]

Surface Y Surface Z

Gear Case [9]

Nut [6]

Thrust Plate [8]

Convex feature of Nut [6]

Position to start screwing Position to stop screwing

x Fitting of the Click Spring

xReassembly of the drive unit

2. Reassembly of the drive unit

(1) Fit Thrust Plate [8] and Spring [7] sequentially onto Gear Case [9].

(2) Align the most convex feature of Nut [6] with the matching mark on Gear Case [9] as shown in the figure

below, and then screw in the nut.

Turn Nut [6] clockwise about 360 degrees, and then align the convex feature of Nut [6] with the matching

mark on Gear Case [9] as shown in the figure below. Confirm that surface Y of Nut [6] and surface Z of

Gear Case [9] are almost at the same level.

(3) While aligning the matching mark on Gear Case [9] with the projecting part of Click Spring [5], fit Click

Spring [5] into the notches on Gear Case [9]. Be sure to orient Click Spring [5] correctly as shown in the

figure below.

Matching mark

Projecting part

Three notches

Gear Case [9]

Projecting part

Click Spring [5]

-15-

Orientation of Shift Arm [11]

Right-hand wind

Gear Case [9]

Steel Ball D5 [10]

Gear Case [9]

Needle [16]

Planet Gear (C) Set [18]

Ring Gear [12]

Carrier [13]

Slide Ring Gear [20]

Pinion (C) [15]

Planet Gear (B) Set [19]

Washer (B) [14]

Pinion (B) [22]

Planet Gear (A) Set [23]

First Ring Gear [24]

Washer (C) [21]

Shift Arm [11]

Screw Set D2 X 3.5 [17]

Washer (A) [25]

x Mounting orientation of the Shift Arm

3. Reassembly of the deceleration mechanism

(1) Apply appropriate amounts of grease (Hitachi Motor Grease No. 29) to the engaging surfaces of gears

and the Ring Gear [12] surface that contacts Steel Ball D5 [10].

(2) Fit Steel Ball D5 [10], Ring Gear [12], Carrier [13], Planet Gear (C) Set [18], and all other parts

sequentially into Gear Case [9] as shown in the figure below.

x Be careful to correctly orient Ring Gear [12], Carrier [13], Pinion (C) [15], Slide Ring Gear [20], Shift

Arm [11], and Pinion (B) [22] as shown in the figure below. Do not fail to fit Washer (C) [21].

x Make sure that two Needles [16] are inserted between Washer (B) [14] and First Ring Gear [24].

xReassembly of the deceleration mechanism

-16-

Wider concave

feature

Convex

feature

Convex

feature

Wider convex

feature

Nut [6]

Indication of "1"

Concave

feature

Concave

feature

Clutch Dial [4]

xReassembly of the Clutch Dial

x Coupling of the power supply unit with the drive unit

4. Coupling of the power supply unit with the drive unit

(1) Attach Motor Spacer [27] to Motor DC12V [28].

Fit the mounting screw of Motor DC12V [28] into the mounting hole of Motor Spacer [27], and then

secure the motor spacer with two Machine Screw M3 X 8 [26].

(2) Fit the convex feature of Motor Spacer [27] into the concave feature of Gear Case [9], and then turn

Motor Spacer [27] clockwise to secure it in place.

When attaching Motor DC12V [28] to Gear Box Ass’y [3], be careful to correctly orient Motor DC12V [28]

and Gear Case [9].

Once Motor DC12V [28] is mounted in the housing, the red marking on Motor DC12V [28] must face

upward.

5. Reassembly of the Clutch Dial

One of the three convex features of Nut [6]

is wider than the others; one of the three

concavity features inside Clutch Dial [4] is

wider than the others. While aligning the

wider convex feature with the wider concave

feature, fit Nut [6] into Clutch Dial [4]. Note

that the wider concave feature inside

Clutch Dial [4] is located at the indication

of clutch setting "1".

Gear Case [9]

Motor Spacer [27] Motor DC12V [28]

Motor Spacer [27]

Convex featureConvex feature

Machine Screw M3 X 8 [26]

Concave feature

Gear Case [9]

-17-

x Reassembling of the housing (1)

6. Reassembling of the housing

(1) Attach the LED to Housing (A). (B)Set [29]. When attaching the LED, be careful to prevent not to twist

the LED wire (delivered as an accessory for DC-Speed Control Switch [35]). Also be sure to run the LED

wire through the fixing rib on the housing. (See the figure below.)

(2) Motor DC12V [28] and Gear Box Ass’y [3] (already coupled) and Shift Knob [33] in Housing (A). (B)Set [29].

When mounting these parts, the convex features of Gear Case [9] and Motor Spacer [27] must be fitted

into the corresponding concave features of Housing (A). (B)Set [29]; the convex feature of Clutch Dial [4]

must be fitted into the corresponding concave feature of Housing (A). (B)Set [29]. Also, the two Needles [16]

projecting from Gear Case [9] must be fitted into the two holes on Housing (A). (B)Set [29]. Be careful to

prevent the LED wire from being caught between the housing and mounted parts. (See the figure below.)

Housing (A). (B)Set [29] (A)

Part to mount

Motor Spacer [27]

Parts to mount

Needles [16]

LED

LED mounting space

Parts to mount

Gear Case [9]

Rib to fix the LED wire

Part to mount Clutch Dial [4]

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Hitachi DS 10DFL Technical Data And Service Manual

Brand: Hitachi

Model: DS 10DFL

Category: Cordless combi drills

Type: Technical Data And Service Manual

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Hitachi DS 10DFL Technical Data And Service Manual

Hitachi DS 10DFL Technical Data And Service Manual

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