Hitachi GP 2S2 Manual de usuario

[SAME FEATURES AS THE CONVENTIONAL MODELS]

Powerful motor with high grinding speed

Compact, slim housing that is easy to grip

LIST No.

GP 2S2: F202

Apr. 2010

The new Model GP 2S2 was developed to replace the existing Model GP 2. The GP 2S2 has the same

specifications and performance as the GP 2, and is assembled at our production facility in Malaysia.

International Sales Division

MARKETING OBJECTIVE

PRODUCT NAME

Hitachi Portable Grinder

Model 25 mm (1”) GP 2S2

• Finishing of dies for press working, die casting, and molding

• Finishing of thread-cutting dies, tools, and other small parts

• Internal grinding of tools and machine parts

APPLICATIONS

SELLING POINTS

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

BBOSCH

GGS27L

(1215 for USA)

C MAKITA GD0601

CONTENTS

Page

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

SPECIFICATIONS -------------------------------------------------------------------------------------------------------------- 2

1. Specifications --------------------------------------------------------------------------------------------------------------------------------- 2

2. Optional Accessories --------------------------------------------------------------------------------------------------------------------- 3

COMPARISON WITH SIMILAR PRODUCTS---------------------------------------------------------------------------- 4

1. Comparison of Specifications-------------------------------------------------------------------------------------------------------- 4

PRECAUTIONS ON SALES PROMOTION ------------------------------------------------------------------------------ 5

1. Safety Instructions ------------------------------------------------------------------------------------------------------------------------- 5

2. Precautions Requiring Particular Attention during Sales Promotion ------------------------------------------ 6

REPAIR GUIDE------------------------------------------------------------------------------------------------------------------ 7

1. Precautions on Disassembly and Reassembly ---------------------------------------------------------- 7

STANDARD REPAIR TIME (UNIT) SCHEDULES-------------------------------------------------------------------- 12

Assembly Diagram for GP 2S2

-1-

Powerful motor with high grinding speed

Model GP 2S2 B C

Power input 520 W 500 W 400 W

Compact, slim housing that is easy to grip

SELLING POINTS

359 mm (14-1/8”)

-2-

1. Specifications

Model

Item GP 2S2

Max. wheel diameter 25 mm (1”)

Chuck grip diameter

ø3 mm, ø6 mm, ø8 mm

ø1/8”, ø1/4”

(Collet chuck supplied with main unit: ø6 or ø1/4”)

Type of wheel Vitrified

Power source AC single phase 50 or 60 Hz

Voltage, current and

power input

No-load speed 29,000 min-1

Type of motor AC single phase commutator motor

Type of switch Slide switch

Enclosure

• Material: Housing --------- Glassfiber-reinforced polyamide resin (green)

Tail cover ------- Glassfiber-reinforced polyamide resin (black)

Nose bracket, Inner cover-------- Aluminum alloy die casting

• Paint color: Nose bracket, Inner cover ---- Metallic silver

Net 1.7 kg (3.8 lbs.) (without cord and wheel)

Weight Gross 2.5 kg (5.5 lbs.)

Packaging Corrugated cardboard box

Standard accessories • Side handle*1----------------------------------------------------------------------- 1

• Wrench (17 mm, 12 mm) --------------------------------------------------------- 2

*1: Depends on the market.

SPECIFICATIONS

Voltage (V) Current (A) Power input (W)

110 4.9

120 4.7 520

127 4.0 480

220 2.5

230 2.4

240 2.3

520

-3-

2. Optional Accessories

(1) For 6-mm shaft diameter (Grit WA 60 PV) --- 10 pcs. per package

Type Code No. Type Code No.

KA-2 939101 KA-8 939107

KA-3 939102 KA-9 939108

KA-4 939103 KA-11 949023

KA-5 939104 KA-12 949021

KA-7 939106 KA-13 949022

(2) For 3-mm shaft diameter (Grit WA80P)------- 20 pcs. per package

Type Code No. Type Code No.

KA-20 939110 KC-20 939115

KA-21 939111 KC-21 939116

KA-22 939112 KC-22 939117

KA-23 939113 KC-23 939118

KA-24 939114 KC-24 939119

(3) Collet Chuck

Capacity Code No.

3 mm 932624

6 mm 932627

8 mm 985135

1/8” 985136

1/4” 932666Z

(4) Dresser

Code No.

939120

-4-

1. Comparison of Specifications

HITACHI

Maker

Model

Item GP 2S2 GP 2 B C

Wheel diameter mm 25 (1”) 25 (1”) 25 (1”) 38 (1-1/2”)

Power input*1W 520 520 500 400

Max. output*1W 610 610 - -

No-load speed min-1 29,000 25,000 27,000 25,000

Grip perimeter mm 200 (7-7/8”) 205 (8-5/64”) 220 (8-43/64”) 200 (7-7/8”)

Weight*2kg 1.7 (3.8 lbs.) 1.75 (3.9 lbs.) 1.6 (3.5 lbs.) 1.6 (3.5 lbs.)

L mm 359 (14-1/8”) 365 (14-3/8”) 332 (13-5/64”) 359 (14-1/8”)

a mm 100 (3-15/16”) 100 (3-15/16”) 78 (3-1/16”) 95 (3-47/64”)

øD mm 35 (1-3/8”) 35 (1-3/8”) 38 (1-1/2”) 43 (1-11/16”)

Dimensions

b mm 184 (7-1/4”) 184 (7-1/4”) 170 (6-11/16”) 180 (7-5/64”)

*1: Depends on the market.

*2: Without cord and wheel.

COMPARISON WITH SIMILAR PRODUCTS

L (Overall length)

(Housing length)

øD Mount

diameter

-5-

1. Safety Instructions

In the interest of promoting the safest and most efficient use of the Model GP 2S2 Portable Grinder 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 Name Plate or Caution Plate attached to each tool.

A. Handling instructions

Although every effort is made in each step of design, manufacture, and inspection to provide protection

against safety hazards, the dangers inherent in the use of any electric power tool cannot be completely

eliminated.

Accordingly, general precautions and suggestions on the use of electric power tools, and specific

precautions and suggestions on the use of the portable grinders are listed in the Handling Instructions to

enhance the safe and efficient use of the tool by the customer. Salespersons must be thoroughly familiar

with the Handling Instructions in order to offer appropriate guidance to the customer during sales promotion

activities.

B. Caution on Name Plate

Each tool is provided with a Name Plate that contains the following basic safety precautions on the use of

the tool.

[For New Zealand and Australia]

CAUTION

Read thoroughly read HANDLING INSTRUCTIONS before use.

[For the USA and Canada]

WARNING

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 31,900 /min.

AVERTISSEMENT

Afin de réduire les resques de blessures, I'utilisateur doit lire et bien comprendre le mode d'emploi.

Utilisez toujours un outil muni d'un protecteur adéquat et portez des lunettes on une visiére.

N'utilisez que des accessoires prévus pour au moins 31,900 /min.

[For China]

PRECAUTIONS ON SALES PROMOTION

-6-

[For Mexico]

ADVERTENCIA

Lea las instruciones de manejo antes de usar.

[For Taiwan]

2. Precautions Requiring Particular Attention during Sales Promotion

A. Precautions on usage

(1) Trial run before operation

Operating the grinder with a damaged or cracked whetstone is very dangerous.

Please be sure to instruct the user to make a trial run by facing the whetstone away from any nearby

person, and confirm that there is no abnormality before operating the grinder.

The trial run time is as follows:

• After replacing a whetstone -------------- At least 3 minutes

• Before starting operation------------------ At least 1 minute

-7-

Screw driver

Coupling [10]

Tap lightly

rmature

ss'y [17]

Pry Pry

Screw driver

Fig. 2

Push down

Shaft

Inner Cover [15]

ø63 to ø72

rmature

ss'y [17]

Fig. 1

1. Precautions on Disassembly and Reassembly

[Bold] numbers in the descriptions below correspond to numbers in the Parts List and exploded assembly

diagram.

1. Disassembly of the Armature Ass’y

(1) Loosen the Tapping Screw (W/Flange) D4 x

16 [41] to pull out the Tail Cover [40].

(2) Remove the two Carbon Brush [29] from the

Brush Holder [30].

(3) Loosen the four Tapping Screw (W/Sp.

Washer) D5 x 30 [6] and remove the Nose

Bracket [8]. Use a screwdriver to separate the

Inner Cover [15] from the Housing [26], and

then remove the Inner Cover [15] together

with the Armature Ass'y [17].

(4) As illustrated in Fig, 1, support the Inner Cover

[15] with a tubular jig having an inner diameter

large enough (63 mm) to accommodate the

Armature Ass'y [17], and then push down the

end of the Armature Ass'y [17] shaft with a

hand press to remove the Armature Ass'y [17].

2. Disassembly of Coupling

The Coupling [10] may be difficult to remove from

the Armature Ass'y [17] due to rust. if it cannot be

removed by pulling by hand, follow the procedure

below.

(1) As illustrated in Fig. 2, use a screwdriver or

similar tool to slightly lift the Coupling [10] and

partially remove it.

(2) Tap the Coupling [10] lightly with a wooden

hammer to push it again.

(3) Repeat steps (1) and (2) several times until

freeing enough rust to allow complete

removal of the Coupling [10] .

3. Disassembly of the Dust Seal

(1) Insert the hooks of the J204 bearing puller between the commutator and Dust Seal [21] from both

sides, and then fix the hooks with the wing bolts.

(2) Place the J204 bearing puller on a supporting jig, and then push down on the armature shaft with a

hand press to remove the Dust Seal [21] together with the Ball Bearing 608VVC2PS2L [22]. Replace

the Dust Seal [21] damaged by removing the Ball Bearing 608VVC2PS2L [22] with a new one.

REPAIR GUIDE

Disassembly

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