Hitachi G 14DSL Technical Data And Service Manual

Brand: Hitachi

Model: G 14DSL

Category: Power tools

Type: Technical Data And Service Manual

PRODUCT NAME

Hitachi 14.4 V Cordless Disc Grinder

Model G 14DSL

• Deburring and finishing ferrous, bronze and aluminum castings, grinding and scraping rust off welded and

fused parts

• Grinding, scraping rust and removing old paint from base surfaces before painting

• Cutting, grooving and grinding mild steel, tile, stone and concrete materials

[ NEW FEATURES ]

Highest actual torque in the class

Smallest body with shortest perimeter of the

one-hand grip

Lightest weight in the class

Soft grip handle

Remaining battery indicator (switch panel)

Safety circuit against setting the battery

while the slide switch is turned on

Equipped with lightweight and high-capacity

slide-type lithium-ion battery

Blow-molded case

MARKETING OBJECTIVE •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

LIST No. H806

Mar. 2008

The new Model G 14DSL cordless disc grinder is equipped with a slide-type lithium-ion battery.

The key features of this new cordless disc grinder are as follows:

(1) Highest actual torque in the class: 1.06 N·m

(2) Smallest body in the class with shortest perimeter of the one-hand grip

(3) Lightest weight in the class: 1.7 kg (3.7 lbs)

(4) Soft grip handle

(5) Remaining battery indicator (switch panel)

(6) Safety circuit against setting the battery while the slide switch is turned on

(7) Equipped with lightweight and high-capacity (3.0 Ah) slide-type lithium-ion battery

(8) Blow-molded case

We aim to expand our market share and increase our sales with the introduction of this new cordless disc

grinder.

MARKETING OBJECTIVE

APPLICATIONS

SELLING POINTS

International Sales Division

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.

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

C Makita BGA450

B BOSCH GWS14.4V

CONTENTS

Page

SELLING POINT DESCRIPTIONS-----------------------------------------------------------------------------------------1

SPECIFICATIONS --------------------------------------------------------------------------------------------------------------3

COMPARISONS WITH SIMILAR PRODUCTS--------------------------------------------------------------------------4

1. Specification comparisons--------------------------------------------------------------------------------------4

2. Working performance per charge ----------------------------------------------------------------------------5

PRECAUTIONS IN SALES PROMOTION--------------------------------------------------------------------------------6

1. Safety instructions -----------------------------------------------------------------------------------------------6

2. Particular attention during sales promotion ----------------------------------------------------------------8

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

1. Precautions in disassembly and reassembly ------------------------------------------------------------ 10

2. Precautions in disassembly and reassembly of battery charger------------------------------------13

STANDARD REPAIR TIME (UNIT) SCHEDULES--------------------------------------------------------------------14

Assembly diagram for G 14DSL

-1-

Highest actual torque in the class* *: Based on our own research

Following table shows a comparison of the actual maximum torque of 75 A at which the overcurrent

protection function of the lithium-ion battery activates between the Models G 14DSL and the competitors.

Note that the overcurrent protection function is not available on the Model B because it is not equipped with

the lithium-ion battery.

HITACHI

Model

G 14DSL / G 14DL

Actual maximum

torque

1.06 N·m

(10.8 kgf·cm, 9.4 in-lbf)

0.76 N·m

(7.7 kgf·cm, 6.7 in-lbf)

0.64 N·m

(6.5 kgf·cm, 5.6 in-lbf)

Smallest body with shortest perimeter of the one-hand grip*

*: Based on our own research

The Model G 14DSL is smallest in the class. It is easy to handle and carry, and also convenient for

operation in narrow spaces. In addition, the grip is comfortable and fatigue-free thanks to the shortest

perimeter in the class for speedy and convenient operation.

HITACHI

Model

G 14DSL G 14DL

(Overall length)

293 mm

(11-17/32”)

325 mm

(12-25/32”)

317 mm

(12-1/2”)

320 mm

(12-1/32”)

(Overall height)

106 mm

(4-11/64”)

129 mm

(5-5/64”)

111 mm

(4-3/8”)

137 mm

(5-25/64”)

(Gear cover height)

65 mm

(2-19/32”)

65 mm

(2-19/32”)

74 mm

(2-59/64”)

65 mm

(2-9/16”)

(Perimeter)

182 mm

(7-5/32”)

182 mm

(7-5/32”)

186 mm

(7-21/64”)

198 mm

(7-51/64”)

Lightest weight in the class* *:Based on our own research

The Model G 14DSL equipped with the slide-type lithium-ion battery is most lightweight in the class.

It is fatigue-free and easy to carry for speedy and convenient operation.

HITACHI

Model

G 14DSL G 14DL

Product weight 1.7 kg (3.7 lbs) 1.8 kg (4.0 lbs) 1.8 kg (4.0 lbs) 1.9 kg (4.2 lbs)

NOTE: The product weight does not include the depressed-center wheel, wheel washer, wheel nut,

side handle, wheel guard or wrench.

SELLING POINT DESCRIPTIONS

-2-

Soft-grip handle

The grip is entirely covered with the soft elastomer to make it comfortable and slip-resistant against sweat,

oil and dust for fatigue-free and convenient operation.

Remaining battery indicator (switch panel)

The Model G 14DSL is equipped with the remaining battery indicator (switch panel). The battery remaining

power can be easily checked while the Model G 14DSL is stopping and the battery can be charged in

proper timing.

Safety circuit against setting the battery while the slide switch is

turned on

The Model G 14DSL is equipped with the safety circuit to protect the operator from the risk of sudden start

of operation when the battery is set while the slide switch is turned on. If the safety circuit activates, turn off

the slide switch and then turn on again to start operation.

Equipped with lightweight and high-capacity (3.0 Ah) slide-type

lithium-ion battery

The type BSL 1430 lithium-ion battery is equipped with the overdischarge protection circuit, overcurrent

protection circuit, and voltage monitoring circuit for each cell to prevent shortening of the battery life due to

overdischarge (overuse) or overcharge (excessive charging) of the battery.

The number of charging/discharging is about 1,500.

Precautions for use of the Type BSL 1430 lithium-ion battery

The type BSL 1430 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 1 or 2 even if

the switch is depressed continuously during operation. This is because the protective function is activated.

The battery is not faulty.

1 The motor automatically stops when the remaining battery level is low (when the battery voltage is

decreased to about 8 V. Charge the battery immediately in such case.

2 The motor may stop if the Model G 14DSL is overloaded. In such case, release the switch and

eliminate the cause of the overload problem. Then the Model G 14DSL will be operable.

Please instruct the customers on the above precautions.

Blow-molded case

The blow-molded case is convenient for carrying the tool. A spare battery can also be stored in the case

(except the NN specification).

3-level indication

The battery remaining power is enough

(about 60% or higher).

The battery remaining power is a half.

The battery remaining power is nearly empty

(about 30% or lower).

-3-

1. Specifications

Model G 14DSL

Capacity:

Depressed-center wheel dia.

115 mm (4-1/2”)

Type of motor DC motor with fan

Main body

Polycarbonate resin and elastomer --- Housing

Aluminum die-casting alloy ------------- Gear cover and inner cover

Battery Polycarbonate resin

Enclosure

Charger ABS resin

Type of switch Slide switch

No-load rotation speed 9,300 min

-1

Actual maximum torque

(at 75 A of load current) Note 1

1.06 N·m (10.8 kgf·cm, 9.4 in-lbf)

Main body Note 2 1.7 kg (3.7 lbs) (including the battery)

Weight

Battery 0.5 kg (1.1 lbs)

Overall length, overall height

and gear cover height

293 mm x 106 mm x 65 mm

(11-17/32” x 4-11/64” x 2-19/32”)

Perimeter of the grip 182 mm (7-5/32”)

Model BSL 1430

Type Sealed cylindrical lithium-ion battery (coolable)

Nominal voltage 14.4 V

Battery

Nominal capacity 3.0 Ah

Remaining battery indicator Provided

<2LSCK specification>

• 115 mm (4-1/2”) resinoid wheel ------ 1

• Wrench ------------------------------------ 1

• Side handle ------------------------------- 1

• Battery (BSL 1430) --------------------- 2

• Battery cover ----------------------------- 1

• Charger (UC 18YRSL) ----------------- 1

• Case (blow-molded case) ------------- 1

Standard accessory

• 115 mm (4-1/2”) resinoid wheel ------ 1

• Wrench ------------------------------------ 1

• Side handle ------------------------------- 1

Note 1: The overcurrent protection function of the lithium-ion battery activates at 75 A.

Note 2: The weight does not include the depressed-center wheel, wheel washer, wheel nut, side

handle, wheel guard or wrench, but the battery.

SPECIFICATIONS

-4-

(Superior specifications:

)

1. Specification comparisons

Maker

HITACHI

Model

G 14DSL G 14DL

C B

Capacity (depressed-

center wheel dia.)

mm (inch)

115 (4-1/2”) 115 (4-1/2”) 115 (4-1/2”) 100 (4”)

No-load rotation speed min

-1

9,300 9,300 10,000 12,500

Catalog value

Weight Note 1 kg (lbs)

1.7 (3.7) 1.8 (4.0) 1.8 (4.0) 1.9 (4.2)

No-load rotation speed min

-1

9,310 9,310 10,090 13,260

Maximum output W

320 320 360 300

Actual maximum

torque (at 75 A of load

current)

Note 2

N·m

(kgf·cm,

in-lbs)

1.06

(10.8, 9.4)

1.06

(10.8, 9.4)

0.76

(7.7, 6.7)

0.64

(6.5, 5.6)

Overall length, overall

height and gear cover

height

mm (inch)

293 x 106 x 65

(11-17/32” x

4-11/64” x 2-19/32”)

325 x 129 x 65

(12-25/32” x 5-5/64”

x 2-19/32”)

317 x 111 x 74

(12-1/2” x 4-3/8” x

2-59/64”)

320 x 137 x 65

(12-1/32” x

5-25/64” x 2-9/16”)

Measured value

Perimeter of the grip

mm (inch)

182 (7-5/32”) 182 (7-5/32”) 186 (7-21/64”) 198 (7-51/64”)

Model

BSL 1430 BCL 1430 - -

Type

Li-ion Li-ion Li-ion Ni-MH

Nominal voltage

14.4 V 14.4 V 14.4 V 14.4 V

Attachment

Slide type Plug-in type Slide type Plug-in type

Nominal capacity

3.0 Ah 3.0 Ah 3.0 Ah 3.0 Ah

Battery

Protection circuit against

overcurrent and overdischarge

Provided Provided Provided Not provided

Model

UC 18YRSL UC 18YRL - -

Attachment of battery

Slide type Plug-in type Slide type Plug-in type

Charging time

45 minutes 45 minutes 22 minutes 38 minutes

Cooling function

Provided Provided Provided Not provided

Charger

Remaining charging time display

Provided Provided Provided Not provided

Attachment of carbon brush

External External External Internal

Slide switch position

Left side Left side Top surface Left side

Remaining battery indicator

Provided Not provided Not provided Not provided

Safety circuit against setting the

battery while the slide switch is

turned on

Provided Provided

Provided

(with LED display)

Not provided

Soft start

Not provided Not provided Provided Not provided

Specification

2LSCK NN 2LRK NN RF Z 3B H

Standard accessory

Depressed-

center wheel ----1

Wrench --------- 1

Side handle --- 1

Battery ---------- 2

Battery cover -- 1

Charger --------- 1

Case ------------- 1

Depressed-

center wheel ---1

Wrench ----------1

Side handle ----1

Depressed-

center wheel --1

Wrench ---------1

Side handle ---1

Battery -----------2

Charger ---------1

Case -------------1

Depressed-

center wheel -- 1

Wrench --------- 1

Side handle --- 1

Depressed-

center wheel ---1

Wrench ----------1

Side handle ----1

Battery -----------2

Charger ---------1

Case -------------1

Depressed-

center wheel --1

Wrench ---------1

Side handle ---1

Depressed-

center wheel -- 1

Depressed-

center wheel -- 3

Side handle --- 1

Battery ---------- 2

Charger -------- 1

Case ------------- 1

Side handle - 1

Note 1: The weight does not include the depressed-center wheel, wheel washer, wheel nut, side

handle, wheel guard or wrench, but the battery.

Note 2: The overcurrent protection function of the lithium-ion battery activates at 75 A. Note that the

overcurrent protection function is not available on the Model B because it works on the

Ni-MH battery.

COMPARISONS WITH SIMILAR PRODUCTS

-5-

2. Working performance per charge

Type of work Maker Model

Working time per charge (min)

0.5 1.0 1.5 2.0 2.5

HITACHI

G 14DSL

G 14DL

Grinding

Pressing load:

Its own weight + 15 N

Outside diameter of the

depressed-center

wheel:

115 mm (4-1/2”)

Type of work Maker Model

Working length per charge

0 16.4 32.8 49.2 65.6 82.0 (ft)

5 10 15 20 25 (m)

HITACHI

G 14DSL

G 14DL

Cutting

(Concrete by a

diamond cutter)

Cutting depth:

5 mm (13/64”)

Type of work Maker Model

Working quantity per charge (pcs.)

5 10 15 20 25

HITACHI

G 14DSL

G 14DL

Cutting

Rebar by a cut-off

wheel

Outside diameter of the

rebar:

10 mm (12/32”)

The above table shows an example of test data obtained using the battery which is standard for this tool.

As actually measured values listed in the above table may vary depending on the sharpness of the wheel,

workpiece hardness, charging condition, operator skill, etc., this data should be used as a comparative

guide only.

2.0

2.5

1.5

No diamond cutter is available

due to the special structure.

8.4

15.5

-6-

1. Safety instructions

In the interest of promoting the safest and most efficient use of the Model G 14DSL Cordless Disc Grinder

by all of our customers, it is very important that at the time of sale, the salesperson carefully ensures that

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

understands the meaning of the precautions listed on the Caution Plate and the Name Plate attached to

each tool.

A. Handling instructions

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

pertinent advice to the customer. In particular, they must have a thorough understanding of the precautions

for use of the cordless tools which are different from those of ordinary electric power tools.

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

New units are not fully charged. Even if the units were 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 charge the unit prior to use.

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

Use of any other power source (DC outlet, fuel powered generator, etc.) will cause the charger to

overheat and burn out.

(3) Do not use any voltage increasing equipment (transformer etc.) between the power source

and the charger.

If the charger is used with voltage higher than that indicated on the unit, it will not function properly.

(4) Conduct battery charging at 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 at the indicated ambient temperature range. At temperature

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

At temperature over 40°C (104°F), the storage battery cannot be sufficiently charged. The optimum

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

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

At high ambient temperature, if over three storage batteries are charged in succession, the temperature

of the coils on the transformer will rise and there is a chance that the temperature fuse inserted in the

interior of the transformer will inadvertently melt. After charging one battery, please wait about 15

minutes before charging the next battery.

(6) Do not insert foreign objects into the air vents on the charger.

The charger case is equipped with air vents to protect the internal electronic components from

overheating. Caution the customer not to allow foreign materials, such as metallic or flammable objects,

to be dropped or inserted into the air vents. This could cause electrical shock, fire, or other serious

hazards.

(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 the charger to permit rapid

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

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

repair or replacement is necessary.

(8) Disposal of the storage batteries

Ensure that all customers understand that the storage batteries should be returned to the Hitachi power

tool sales outlet or the authorized service center when they are no longer capable of being recharged or

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

PRECAUTIONS IN SALES PROMOTION

-7-

•

To reduce the risk of injury,

user must read and understand

instruction manual.

•

Always use proper

guards when grinding and wear eye

protection.

•

Use only accessories rated

at least 13300/min.

WARNING

(9) Keep the battery out of dust.

• Protect the battery from being covered with dust during operation.

• Protect the battery from being covered with dust accumulated on the Model G 14DSL during

operation.

• Do not leave the battery in a dusty area when not in use.

• Remove dust from the battery and store it separating from metallic parts such as screws and nails.

B. Caution plate

(1) The following cautions are listed on the name plate attached to the main body of each tool.

[ For Europe, Australia and New Zealand ]

[ For the U.S.A. and Canada ]

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

[ For Europe, Australia and New Zealand ]

[ For the U.S.A. and Canada ]

(3) The following cautions are listed on the name plate attached to the Model UC 18YRL or UC 18YG

charger.

[ For Europe, Australia and New Zealand ]

instruction manual

-8-

• For safe operation, see instruction manual.

• Charge HITACHI rechargeable batteries types

BSL 14 and BSL 18 series. Other types of batteries may burst

causing personal injury and damage. • Charge between 32 °F and

104 °F. Rest 15 minutes between the charging of batteries. • Indoor

use only. • Replace defective cord immediately.

CAUTION

[ For the U.S.A. and Canada ]

2. Particular attention during sales promotion

The cordless disc grinder offers many advantages: it can be used in places where no power source is

available, the absence of a cord allows easy use, etc. However, in comparison with conventional AC type

disc grinders, there are certain precautions which require particular attention. Salespersons must be

thoroughly familiar with the following points to properly advise the customer on the most efficient use of the

tool.

A. Suggestions and precautions for the efficient use of the tool

(1) Protection function of the lithium-ion battery

The Model G 14DSL is equipped with a lithium-ion battery. To extend the life time, the lithium-ion battery

is equipped with the protection function to stop the output.

In the case of 1 to 3 described below, when using this product even if you are pulling the switch, the

motor may stop. This is not the trouble but the result of the protection function.

1. When the battery power remaining runs out (the battery voltage drops to about 12 V), the motor

stops.

2. If the tool is overloaded, the motor may stop. In this case, release the switch of the tool and eliminate

causes of overloading. After that, you can use it again.

3. If the battery is overheated under overload work, the battery power may stop.

In this case, stop using the battery and let the battery cool. After that, you can use it again.

(2) Precaution on the protection function of the lithium-ion battery

The Model G 14DSL is equipped with a protection function that will shut down the tool in the event of an

overload. Should the tool shut down due to an overload, turn the power off and then turn on again. An

overload that stops tool operation and lasts more than 10 seconds may not be released by turning the

power off and on. Should this happen, remove the battery from the tool and reinstall it before turning on

the power switch.

(3) Safety function of the cordless disc grinder

To prevent injuries, the Model G 14DSL has a function that prevents unexpected motor rotation when

the battery is inserted. The motor will not run if the battery is inserted while the switch is still ON. After

installing the battery, turn the switch off and then turn on again.

(4) Variation in amount of work possible per charge

Although the nominal capacity of the storage battery used with the Model G 14DSL is 3.0 Ah, the actual

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

recharging, and the number of times the batteries have been recharged. It should also be noted that

other factors which may have a bearing on the amount of work possible per charge are the working

conditions (ambient temperature, type of the workpieces, sharpness of the wheel, etc.) and the

operational skill of the user.

-9-

B. Precautions on usage

(1) The wheel guard must be aligned in relation to the side handle mounting position.

As illustrated in the figures below, the customer should be instructed that the wheel guard mounting

angle must be aligned and fixed in accordance with the side handle mounting position so that the

operator’s hand will not contact the depressed center wheel.

(2) Never press the pushing button on the gear cover while the depressed center wheel is rotating.

If the pushing button is pressed while the depressed center wheel is rotating, the spindle will stop

immediately. In such a case, there is a danger that the wheel nut may be loosened and the depressed

center wheel may fly off unexpectedly, resulting in possible serious injury.

-10-

Be sure to remove the storage battery from the main body before servicing. Inadvertent triggering of the

switch with the storage battery connected will result in danger of accidental turning of the motor.

1. Precautions in disassembly and reassembly

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

exploded assembly diagrams for the Model G 14DSL.

1. Removal of the gear

(1) Loosen the two Machine Screws (W/Sp. Washer) M5 x 16 (Black) [18] of the Wheel Guard Ass’y [20]

and remove the Wheel Guard Ass’y [20] from the Packing Gland [14].

(2) Loosen the four Seal Lock Screws (W/Sp. Washer) M4 x 12 [15] and remove the Packing Gland [14]

from the Gear Cover Ass’y [3].

(3) Remove the Retaining Ring for D11 Shaft [8] from the Spindle [16] with a retaining ring puller and pull

out the Gear [10]. Then the Gear [10] can be removed together with the Wave Washer [9] from the

Spindle [16].

2. Removal of the spindle

(1) After removal of the Gear [10], remove the Woodruff Key [24] from the Spindle [16].

(2) Loosen the three Slotted Hd. Screws (Seal Lock) M4 x 10 [13] securing the Packing Gland [14] and

remove the Spindle [16] together with the Ball Bearing 6001VVCMPS2L [11]. Pull out the Ball Bearing

6001VVCMPS2L [11] with a bearing puller or push the Spindle [16] with a hand press using a proper

sleeve to disassemble.

3. Removal of the armature and pinion set and the magnet

(1) Remove the two Brush Caps [25] then remove the two Carbon Brushes 5 x 6 x 11.5 [26] on both sides.

(2) Loosen the four Tapping Screws (W/Flange) D4 x 23 (Black) [1] and remove the Gear Cover Ass’y [3].

(3) Remove the five Tapping Screws (W/Flange) D4 x 20 (Black) [29]. Insert a flat-blade screwdriver into

the semicircular groove in the inner cover of the Armature and Pinion Set [4] at the bottom of the main

body and give the screwdriver one turn. Then the Armature and Pinion Set [4] slightly moves forward

and the spigot joint between the inner cover and the housing is released.

(4) After removal of Housing (B) [28], raise the commutator side of the Armature and Pinion Set [4] (at the

rear of the main body) a little and remove the Rubber Bushing [6].

(5) Raise the commutator side of the Armature and Pinion Set [4] (at the rear of the main body) a little.

Pressing the Brush Block [27] against Housing (A) [28], pull up the Armature and Pinion Set [4]. Then

the Armature and Pinion Set [4] can be removed together with the Magnet [5] from the Brush Block

[27].

(6) Pull out the Armature and Pinion Set [4] from the Magnet [5].

4. Removal of the brush block

(1) After removal of the Armature and Pinion Set [4], pull out the receptacle of the Brush Block [27] from the

Pushing Button Switch [36]. Remove the Brush Block [27] from Housing (A) [28].

Disassembl

REPAIR GUIDE

-11-

5. Removal of the switch and the controller

(1) After removal of Housing (A) [28], pull out the receptacle of the Brush Block [27] from the Pushing

Button Switch [36]. Remove the Pushing Button Switch [36] from Housing (A) [28].

(2) Remove the terminal screw of the Pushing Button Switch [36] and remove the terminal of the Controller

Terminal Set [37]. Remove the Pushing Button Switch [36] and the Controller Terminal Set [37] from

Housing (A) [28].

6. Removal of the slide knob and the slide bar

(1) After removal of the Armature and Pinion Set [4], Magnet [5], Brush Block [27] and Pushing Button

Switch [36], push the Slide Bar [33] forward while pressing the Slide Knob [34] against the rear of the

main body. Then the Slide Knob [34] and the Slide Bar [33] can be removed.

Reassembly can be accomplished by following the disassembly procedure in reverse. However, special

attention should be given to the following items.

1. Mounting the armature and pinion set, magnet and brush block

(1) When mounting the Magnet [5], arrange the Magnet [5] so that the flanged side of the yoke is

positioned at the rear of the main body and fit the stop rib of Housing (A) [28] in the stop groove of the

Magnet [5].

(2) Mount the Brush Block [27] aligning with the fixed rib of Housing (A) [28]. Push the internal wire of the

Brush Block [27] in the central groove of Housing (A) [28] completely for prevention of pinching.

(3) When inserting the Armature and Pinion Set [4] into the Magnet [5] and the Brush Block [27], each part

is raised. Check the above (1) and (2) again after mounting the Armature and Pinion Set [4].

(4) After mounting the Armature and Pinion Set [4], be sure to mount the Rubber Bushing [6] to the ball

bearing of the Armature and Pinion Set [4].

2. Mounting the switch and the controller

(1) Mount the Pushing Button Switch [36] so that the tip of the pushing button securely contacts the

pushing button groove of the Slide Bar [33] after connection of each internal wire.

(2) When mounting the Controller Terminal Set [37], align with the fixed rib of Housing (A) [28] being

careful of the mounting direction of the battery terminal and the remaining power indicator. Push the

internal wire of the Controller Terminal Set [37] in the internal wire groove of Housing (A) [28]

completely for prevention of pinching.

Reassembl

-12-

Screw ti

htenin

tor

Backlash of the

• Inside the pinion chamber of the Gear Cover Ass'y [3]: 8 g of Nippeco SEP-3A grease

Rub grease on the gear and the pinion well.

• Metal of the Gear Cover Ass'y [3]: 0.5 cc of mixed oil of Hitachi Motor Grease No. 2 (Uni-Lube No. 00)

and turbine oil (mixture ratio by weight 1:1)

• Tapping Screw (W/Flange) D4 x 23 (Black) [1] -------------------------------- 2.0 ± 0.5 N٠m (20 ± 5 kgf٠cm)

• Tapping Screw (W/Flange) D4 x 20 (Black) [29] ------------------------------- 2.0 ± 0.5 N٠m (20 ± 5 kgf٠cm)

• Seal Lock Screw (W/Sp. Washer) M4 x 12 [15] -------------------------------- 1.8 ± 0.4 N٠m (18 ± 4 kgf٠cm)

• Slotted Hd. Screw (Seal Lock) M4 x 10 [13]------------------------------------- 1.8 ± 0.4 N٠m (18 ± 4 kgf٠cm)

• Machine Screw (W/Sp. Washer) M5 x 16 (Black) [18]------------------------ 1.6 ± 0.4 N٠m (16 ± 4 kgf٠cm)

• Terminal set screw M3.5 of the Pushing Button Switch [36]----------------- 0.6 ± 0.2 N٠m (6 ± 2 kgf٠cm)

• Brush Cap [25]-------------------------------------------------------------------------- 1.0 ± 0.5 N٠m (10 ± 5 kgf٠cm)

Allowable backlash of the gear is 1.8 mm maximum on the periphery of the wheel.

lication of lubricant

-13-

Wirin

dia

ram

Wiring diagram

Connecting diagram

Pushing Button Switch [36]

Brush Block [27]

Controller Terminal Set [37]

Slide Bar [33]

View from A

Controller Terminal Set [37]

Pushing Button Switch [36]

Black

Red

White

Indication unit

Controller unit

Black

Red

White

Red

2. Precautions in disassembly and reassembly of battery charger

Refer to the Technical Data and Service Manual for precautions in disassembly and reassembly of the

battery charger Model UC 18YRSL.

-14-

MODEL

Variable

Fixed

10 20 30 40 50 60 min.

Work Flow

G 14DSL

General Assembly

Wheel Guard

Ass’y

Housing (B)

Housing (A)

Slide Bar

Slide Knob

Pushing

Button Switch

Controller

Termi n a l Set

Armature and

Pinion Set

Magnet

Rubber

Bushing

Brush Block

Gear Cover

Ass’y

Pushing

Button

Lock Pin

Gear

Packing Gland

Ball Bearing

(6001VV)

Spindle

STANDARD REPAIR TIME (UNIT) SCHEDULES

Model G 14DSL

CORDLESS DISC GRINDER

LIST NO. H806

(E1)

䎃

502

503

501

504

505

PART

G 14DSL

DESCRIPTION REMARKS

1 328-643 TAPPING SCREW (W/FLANGE) D4X23 (BLACK) 4

2 301-944 PUSHING BUTTON 1

3 303-078 GEAR COVER ASS'Y 1 INCLUD. 2, 7

4 360-803 ARMATURE AND PINION SET 1

5 328-195 MAGNET 1

6 328-201 RUBBER BUSHING 1

7 301-943 LOCK PIN 1

8 316-487 RETAINING RING FOR D11 SHAFT 1

9 316-486 WAVE WASHER 1

10 328-196 GEAR 1

11 600-1VV BALL BEARING 6001VVCMPS2L 1

12 301-946 FELT PACKING 1

13 301-936 SLOTTED HD. SCREW (SEAL LOCK) M4X10 3

14 328-198 PACKING GLAND 1

15 307-127

SEAL LOCK SCREW (W/SP. WASHER) M4X12 4

* 16 328-359 SPINDLE M14 1

* 16 328-360 SPINDLE 5/8"-11UNC 1 FOR USA, CAN

17 301-945 FRINGER 1

18 308-386

MACHINE SCREW (W/SP. WASHER) M5X16(BLACK) 2

19 301-949 SET PLATE 1

20 315-492 WHEEL GUARD ASS'Y 1 INCLUD. 18, 19

* 21 937-817Z WHEEL WASHER 1

* 21 319-373 WHEEL WASHER 1 FOR USA, CAN

22 316-821 D. C. WHEELS 115MM A36Q (25 PCS.) 1

* 23 994-324 WHEEL NUT M14 1

* 23 937-923P WHEEL NUT 5/8"-11UNC 1 FOR USA, CAN

24 302-047 WOODRUFF KEY 1

25 328-200 BRUSH CAP 2

26 999-054 CARBON BRUSH 5X6X11.5 (1 PAIR) 2

27 328-202 BRUSH BLOCK 1

28 329-902 HOUSING (A). (B) SET 1

29 301-653

TAPPING SCREW (W/FLANGE) D4X20 (BLACK) 5

30 NAME PLATE 1

* 31 323-229 FERRITE CORE 1 FOR EUROPE

* 32 326-493 SUPPORT (D) 1 FOR EUROPE

33 328-199 SLIDE BAR 1

34 314-428 SLIDE KNOB 1

35 HITACHI LABEL 1

36 329-057 PUSHING BUTTON SWITCH 1

37 328-203 CONTROLLER TERMINAL SET 1

38 329-083 BATTERY BSL 1430 (EUROPE) 2 INCLUD. 504

- 2 - 3 - 08

*ALTERNATIVE PARTS

ITEM

NO.

USED

CODE NO.

STANDARD ACCESSORIE

G 14DSL

DESCRIPTION REMARKS

501 318-312 SIDE HANDLE 1

502 938-332Z WRENCH 1

503 CHARGER (MODEL UC 18YRSL) 1

504 329-897 BATTERY COVER 1

505 328-206 CASE 1

OPTIONAL ACCESSORIE

DESCRIPTION REMARKS

* 601 937-826Z WASHER NUT 1

* 601 938-318 WASHER NUT 1 FOR USA, CAN

* 602 937-825Z RUBBER PAD 1

* 602 938-317 RUBBER PAD 1 FOR USA, CAN

603 314-095 SANDING DISCS 115MM C-P16 (10 PCS.) 1

604 314-096 SANDING DISCS 115MM C-P20 (10 PCS.) 1

605 314-097 SANDING DISCS 115MM C-P24 (10 PCS.) 1

606 314-098 SANDING DISCS 115MM C-P30 (10 PCS.) 1

607 314-099 SANDING DISCS 115MM C-P36 (10 PCS.) 1

608 314-100 SANDING DISCS 115MM C-P40 (10 PCS.) 1

609 314-101 SANDING DISCS 115MM C-P50 (10 PCS.) 1

610 314-102 SANDING DISCS 115MM C-P60 (10 PCS.) 1

611 314-103 SANDING DISCS 115MM C-P80 (10 PCS.) 1

612 314-104 SANDING DISCS 115MM C-P100 (10 PCS.) 1

613 314-105 SANDING DISCS 115MM C-P120 (10 PCS.) 1

* 614 310-338 SUPER WASHER 1 EXCEPT FOR USA, CAN

3 - 08 - 3 -

*ALTERNATIVE PARTS

NO.

USED

CODE NO.

ITEM

NO.

USED

CODE NO.

ITEM

NO.

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Hitachi G 14DSL Technical Data And Service Manual

Brand: Hitachi

Model: G 14DSL

Category: Power tools

Type: Technical Data And Service Manual

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Hitachi G 14DSL Technical Data And Service Manual

Hitachi G 14DSL Technical Data And Service Manual

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