Hitachi GP 2S2 Manuel utilisateur
[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
.
G
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)
b
øD Mount
diameter
a
-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
A
rmature
A
ss'y [17]
Pry Pry
Screw driver
Fig. 2
Push down
Shaft
Inner Cover [15]
ø63 to ø72
A
rmature
A
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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