Hitachi PDA-100K Manual

TECHNICAL DATA
AND
SERVICE MANUAL
DISC GRINDER
PDA-100K
G 10SK3
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
LIST Nos. PDA-100K: E265
G 10SK3: E264 Dec. 2003
MODELS PDA-100K
G 10SK3
P
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
BOSCH GWS6-100
B
MAKITA 9523NB
C1
MAKITA 9526B
C2

Page
CONTENTS
1. PRODUCT NAME.............................................................................................................................. 1
2. MARKETING OBJECTIVE ................................................................................................................ 1
3. APPLICATIONS................................................................................................................................. 1
4. SELLING POINTS ............................................................................................................................. 2
5. SPECIFICATIONS ............................................................................................................................. 5
6. COMPARISONS WITH SIMILAR PRODUCTS ................................................................................. 6
6-1. Specification Comparisons .................................................................................................................6
6-2. Comparisons in Torque vs. Rotation Speed and Stator Coil Temperature Rise .................................7
7. PRECAUTIONS IN SALES PROMOTION ........................................................................................ 8
7-1. Handling Instructions ..........................................................................................................................8
7-2. Caution Plate ......................................................................................................................................8
7-3. Precautions on Usage ........................................................................................................................8
8. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY ............................................................... 9
8-1. Disassembly .......................................................................................................................................9
8-2. Reassembly ......................................................................................................................................10
8-3. Lubrication Points and Types of Lubricant........................................................................................13
8-4. Tightening Torque .............................................................................................................................13
8-5. Wiring Diagram .................................................................................................................................13
8-6. Insulation Tests .................................................................................................................................14
8-7. No-load Current Value ......................................................................................................................14
9. STANDARD REPAIR TIME (UNIT) SCHEDULES .......................................................................... 15
Assembly Diagram for PDA-100K
Assembly Diagram for G 10SK3

--- 1 ---
1. PRODUCT NAME
Hitachi Disc Grinder, Models PDA-100K [100 mm (4")]
G 10SK3 [100 mm (4")]
2. MARKETING OBJECTIVE
The conventional Model PDA-100G has obtained high evaluation for its class-first aluminum double-insulated
housing, powerful motor, small-diameter grip and light weight in the Southeast Asian market. The conventional
Model G 10SK2 has also obtained high evaluation as a double-insulated product featuring a small-diameter grip
and light weight. However, the price competition is becoming fierce in the market and there is a demand for more
durable armature ass'y and bearing in the gear cover. To address the severe situation and the demand, we
introduce the new disc grinders Models PDA-100K and G 10SK3 that are the upgraded versions of the
conventional Models PDA-100G and G 10SK2 on the market.
The main improvements are as follows:
Dust resistance was increased thanks to the application of adhesive to the commutator hook of the
armature ass'y.
The bearing in the gear cover was changed from the metal bearing to the needle bearing to increase the
service life and durability.
3. APPLICATIONS
Removal of casting fin and finishing of various types of steel, bronze, aluminum, and other metallic materials
and castings
Grinding of welded sections, or sections cut by acetylene torch
Grinding of slate, brick, marble and similar materials
After upgrading
PDA-100K
G 10SK3
Before upgrading
PDA-100G
G 10SK2
1
2
Please expand the sales of the new Models PDA-100K and G 10SK3 as well as the conventional Models
PDA-100G and G 10SK2.

--- 2 ---
Easy-to-use snap switch
4. SELLING POINTS
Smaller-diameter grip
Double-insulated aluminum housing
(Model PDA-100K only)
Resistance (heat and strength):
Equivalent to an aluminum housing
Insulation: Equivalent to a mold housing
Durable bearing of the gear cover spindle
(needle bearing)
Low noise
(Gears are meshed with play.)
Durable motor
Application of adhesive to the
commutator hook
Extended armature wedge
Vent is resistant to sucking gravel.
Maximum output: 900 W
PDA-100D: 710 W
G 10SB1 : 560 W
G 10SK : 800 W
B : 750 W
C1 : 745 W
C2 : 860 W
High power input: 705 W
PDA-100D: 620 W
G 10SB1 : 530 W
G 10SK : 580 W
B : 670 W
C1 : 540 W
C2 : 710 W

--- 3 ---
Double-insulated aluminum housing (Model PDA-100K only)
Injection molding is partially conducted on the conventional aluminum die-cast housing to make the aluminum
housing double-insulated. Thus the Model PDA-100K offers high insulation and light weight that are
advantages of a mold housing as well as resistance against heat and external force that is an advantage of an
aluminum housing. The Model PDA-100K causes no melting in the ball bearing chamber that is a weak point
of the mold housing thanks to the new housing construction and the service life of the housing is longer than
the conventional model.
Maker B HITACHI
Model PDA-100K
(PDA-100G)
Perimeter of grip* mm 191
G 10SK
176200
C1
195
P
Small-diameter grip
The Models PDA-100K and G 10SK3 are equipped with a small-diameter grip that is common to the well-
reputed conventional models. The Model PDA-100K offers higher operability than the conventional Model
PDA-100D and the Model G 10SK3 offers operability equivalent to the conventional Model G 10SK.
In addition, the Models PDA-100K and G 10SK3 are lightweight and offer less user fatigue even though they
are used for a long time.
* Perimeter of grip is the dimension "P" shown below.
Aluminum
Mold
Aluminum
Mold
PDA-100D
176
187
G 10SK3
(G 10SK2) C2
204

--- 4 ---
2
3
3
2
New vent construction is adopted to prevent dust or gravel from getting inside.
(Comparison of vent construction)
Durable motor
The Models PDA-100K and G 10SK3 are equipped with a motor whose durability is greater than the
conventional models by making the following improvements. The service life of the armature coil is 2 times
longer than the conventional models as a result of the gravel suction test (gravel is forcedly sucked in through
the vents of the tail cover).
The wedges at both ends of the armature coil are extended by 3 to 4.5 mm to protect the portions where
the peripheral speed is the fastest and apt to be disconnected by dust or gravel. Thanks to the application of
adhesive to the commutator hook, the hook has higher resistance to deformation or disconnection than the
conventional models when dust hits the hook.
Maker B HITACHI
Model PDA-100K
(PDA-100G)
670
760
1.40
543
G 10SK
G 10SK3
(G 10SK2)
PDA-100D C1
540
770
1.48
520
3 mm to 4.5 mm 3 mm to 4.5 mm
Wedge
High power input and maximum power output
The Models PDA-100K and G 10SK3 are compact and lightweight, but powerful and offer higher power input
than the conventional Models PDA-100D and G 10SK thanks to the high-power motor. It is said that the
greater the maximum power output/weight is, the better performance the motor offers. Table 1 shows a
comparison of the motor performance. It is clear that the Models PDA-100K and G 10SK3 have higher
performance than the conventional Models PDA-100D and G 10SK respectively.
*Actual weight excludes cord, depressed center wheel, wheel nut, wheel washer and wheel guard.
Models PDA-100K and G 10SK3
(Dust or gravel is hard to be sucked in.) Models PDA-100D and G 10SK
Max. power output W
Weight* (actual)
Max. power output/weight kg
W/kg
Power input W 705
900
1.55
581
620
800
1.95
410
705
900
1.39
647
580
820
1.34
612
C2
710
860
1.75
491
Application range of adhesive
Table 1

--- 5 ---
Durable bearing of the gear cover spindle
The bearing of the gear cover spindle was changed from the metal bearing to the needle bearing to increase
the service life and durability.
Low gear noise
The gear fastening method is changed from the conventional press-fitting method to the new method. The
gear is fastened to the spindle by a woodruff key keeping a proper clearance to reduce the variations in gear
noise level to the minimum level.
Depressed
center
wheel
5. SPECIFICATIONS
4,300 m/min (14,100 ft/min, 72 m/s)
Dimensions
Model
Item
O.D. 100 mm (4") x Thickness 6 mm (1/4")
x I.D. 16 mm (5/8")
Offset amount: 4 mm (5/32")
Max. peripheral speed
PDA-100K
AC single phase 50 or 60 Hz
Power source
Glassfiber reinforced polyamide resin (black)
Aluminum alloy die casting (metallic silver)
Aluminum alloy die casting
1.5 kg (3.3 lbs.) 1.4 kg (3.1 lbs.)
2.5 kg (5.5 lbs.) 2.4 kg (5.3 lbs.)
Corrugated cardboard box
Rotation speed (no-load)
Type of motor
Type of switch
Enclosure
Net: *1
Gross:
Packaging
Standard accessories*2Depressed center wheel [Outer dia.100 mm (4") ].................1
Wrench...................................................................................1
Voltage, current and power input
12,000/min
AC single-phase commutator motor
Snap switch
Housing
Tail cover
Gear cover
Packing gland
Voltage (V)
110
220
230
240
Current (A)
6.7
3.3
3.2
3.1
Power input (W)
705
*1: Net weight excludes cord, depressed center wheel, wheel nut, wheel washer and wheel guard.
*2: Standard accessories are subject to change without prior notice.
G 10SK3
Aluminum alloy die casting (metallic
silver) and glassfiber reinforced
polyamide resin (green)
Glassfiber reinforced polyamide
resin (green)
Weight

--- 6 ---
Maker
Model
Wheel diameter mm
No-load speed /min
Power input W
Power output W
Max. power output W
Lmm
Dimensions W mm
Hmm
Pmm
Weight * Catalog kg
Actual kg
Type of switch
HITACHI
100
12,000
705
440
900
258
72
63
187
1.5
1.6
Snap
6. COMPARISONS WITH SIMILAR PRODUCTS
6-1. Specification Comparisons
100
12,000
580
330
820
254
67
60
176
1.4
1.4
Snap
100
11,000
540
250
770
256
81
70
195
1.4
1.5
Slide
C1
L
H
W
P: Perimeter
* Weight excludes cord, depressed center wheel, wheel nut, wheel washer and wheel guard.
100
11,000
670
360
760
265
76
73
191
1.4
1.4
Slide
100
12,000
705
440
900
258
72
63
176
1.4
1.4
Snap
100
12,000
620
410
800
254
67
60
200
1.7
2.0
Snap
B
PDA-100K
(PDA-100G) PDA-100D G 10SK3
(G 10SK2) G 10SK
100
11,000
710
370
860
260
67
68
204
1.6
1.8
Snap
C2

--- 7 ---
6-2. Comparisons in Torque vs. Rotation Speed and Stator Coil Temperature Rise
Figure 1 shows comparisons of the rotation speed and the stator coil temperature rise between a competitive
model with respect to torque. Torque represents the magnitude of load, i.e., the amount of pressing force, cutting
depth and forward force in actual cutting jobs. This shows that a powerful motor is less likely to burn out because
it has both a minimum drop of rotation speed even at a greater torque and a lower stator coil temperature rise at
the same torque.
Fig. 1 Comparisons in torque vs. rotation speed and stator coil temperature rise
Figure 1 indicates the following:
The motor speed of the Models PDA-100K and G 10SK3 is higher than that of B, C, Models PDA-100D and
G 10SK at the same torque. This means that the working efficiency of the Models PDA-100K and G 10SK3
are superior to B, C, Models PDA-100D and G 10SK.
The stator coil temperature rise of the Models PDA-100K and G 10SK3 is lower than that of B, C and Model
G 10SK thanks to the improved cooling mechanism and it is equivalent to that of the Model PDA-100D.
This means that the Models PDA-100K and G 10SK3 have a burn-resistant and tenacious motor.
Load
Stator coil temp. rise (K)
2,000
0
B
4,000
6,000
8,000
12,000
10,000
00
600
100
200
300
400
500
Rotation speed of spindle (/min.)
Torque range
Stator coil temp. rise X: Burn-out point
HITACHI G 10SK
HITACHI G 10SK
HITACHI PDA-100D
HITACHI PDA-100K, G 10SK3
B
HITACHI PDA-100K, G 10SK3
HITACHI PDA-100D
Rotation speed of spindle
XX
X
X
X
C1
C1
C2 C2
X
1
2

--- 8 ---
7. PRECAUTIONS IN SALES PROMOTION
In the interest of promoting the safest and most efficient use of the Models PDA-100K and G 10SK3 disc grinders
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 nameplate attached to each tool.
7-1. Handling Instructions
Although every effort is made in each step of design, manufacture and inspection to provide protection against
any hazards, the dangers inherent in the use of any electric tool cannot be completely eliminated. Accordingly,
general precautions and suggestions for the use of electric power tools, and specific precautions and suggestions
for the use of the disc grinders are listed in the Handling Instructions to enhance the safe, efficient use of the tool
by the customer. Salespersons must be thoroughly familiar with the contents of the Handling Instructions to be
able to offer appropriate guidance to the customer during sales promotion.
7-2. Caution Plate
The following caution is listed on the nameplate attached to the main body of each tool.
7-3. Precautions on Usage
Instruct the customer to pay particular attention to the two points described below.
(1) Use of the side handle (Optional accessory)
When the side handle is used, the customer must be instructed to ensure without fail that the wheel guard is
mounted in the manner so that it protects the operator's hand from coming into contact with the depressed
center wheel.
Fig. 2
Side handle Pushing button
Wheel guard
(1) For Taiwan
(2) For China
Side handle

--- 9 ---
8. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY
The [Bold] numbers in the descriptions below correspond to the item numbers in the Parts List and the exploded
assembly diagram for Model PDA-100K, and the <Bold> numbers to those in the Parts List and the exploded
assembly diagram for Model G 10SK3.
8-1. Disassembly
(1) Disassembly of the armature
1) Remove the Brush Caps [40] <39> and take out the Carbon Brushes [41] <40>.
2) Loosen the four Machine Screws M5 x 22 [1] or the four Tapping Screws D5 x 25 (Black) <1> which fix the
Gear Cover Ass'y [4] <3> to remove the Armature [8] <7> from the Housing Ass'y [35] <34> together with
the Bearing Holder [7] <6>.
3) Loosen the Special Nut M7 [5] <4> which fixes the pinion to remove the pinion.
4) Insert the hooks of the J-204 bearing puller between the Ball Bearing 628VVC2PS2-L [6] <5> and the
Bearing Holder [7] <6> from both sides and fix the hooks with the wing bolts.
5) Place the J-204 bearing puller on a supporting jig and push down on the tip of the armature shaft with a
hand press to remove the Ball Bearing 628VVC2PS2-L [6] <5>. Then remove the Bearing Holder [7] <6>.
(2) Disassembly of the dust seal
1) Insert the hooks of the J-204 bearing puller between the commutator and the Dust Seal [12] <11> from both
sides, and fix the hooks with the wing bolts.
2) Place the J-204 bearing puller on a supporting jig and push down on the armature shaft with a hand press
to remove the Dust Seal [12] <11> together with the Ball Bearing 626VVC2PS2L [13] <12>. Replace the
Dust Seal [12] <11> with new one because it is damaged by the removal of the Ball Bearing 626VVC2PS2L
[13] <12>.
(3) Disassembly of stator (A)
1) Remove the Armature [8] <7> and loosen the Tapping Screw (W/Flange) D4 x 25 (Black) [49] <48> to
remove Tail Cover (B) [48] <47>.
2) Loosen the two Machine Screws (W/Washer) M3.5 x 6 [50] <49> that secure the internal wire of the Cord
[56] <55> and Stator (A) [11] <10> to the Switch (1P Screw Type) [51] <50> and loosen the two screws of
the Pillar Terminal [45] <44>. Remove the two internal wires from the Cord [56] <55> and the Pillar
Terminal [45] <44>.
3) Remove the Tapping Screw (W/Flange) D4 x 40 [39] <38> and the Tapping Screw (W/Flange) D4 x 20
(Black) [38] <37>. Remove Tail Cover (A) [37] <36> then remove the Earth Terminal [43] <42> from the
Housing Ass'y [35] <34>.
4) Disconnect the two internal wires of Stator (A) [11] <10> coming from the Brush Holder [42] <41>
from Stator (A) [11] <10>.
(2) Never press the pushing button while the depressed center wheel is rotating.
If the pushing button (Fig. 2) 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, so that the depressed
center wheel flies out unexpectedly and may cause possibly serious injury.

--- 10 ---
5) Remove the Fan Guide [9] <8> from the Housing Ass'y [35] <34>.
6) Loosen the Tapping Screw D4 x 70 [10] or the Tapping Screw (W/Flange) D4 x 70 <9> securing Stator (A)
[11] <10>. Remove Stator (A) [11] <10> from the Housing Ass'y [35] <34>.
(4) Disassembly of the gear
1) Loosen the four Seal Lock Screws (W/Sp. Washer) M4 x 12 [23] <22> that secure the Packing Gland [22]
<21> to the Gear Cover Ass'y [4] <3> and remove the Packing Gland [22] <21> from the Gear Cover
Ass'y [4] <3>.
2) Remove the Retaining Ring for D11 Shaft [15] <14> that secures the gear to the Spindle [25] <24>.
3) Remove the Wave Washer [16] <15> and the gear from the Spindle [25] <24>.
Fig. 3
8-2. Reassembly
Push the parts together in the reverse order of disassembly, with the precautions given below.
(1) Ensure that the terminals of the stator are not bent or otherwise damaged.
(2) Generously lubricate the teeth of the gear and the pinion with grease. Rub grease onto the teeth with your
fingers so that the grease reaches each tooth bottom. Note that the gear and the pinion may wear faster than
normal if under-lubricated.
(3) Be sure to soak the inner diameter of the Felt Packing [21] <20> with machine oil. Otherwise, its dust-sealing
function will fail to work properly, resulting in earlier damage of the Ball Bearing 6201VVCMPS2L [20] <19>.
(4) When replacing the Armature [8] <7> and the Ball Bearing 626VVC2PS2L [13] <12> on the commutator side,
press inward on the Dust Seal [12] <11> while taking care of its direction until the end face of the Dust Seal
[12] <11> contacts against the end surface of the Armature [8] <7> and make sure that Dust Seal [12] <11>
cannot be turned freely by hand. Keep the end face of the armature shaft approximately 0.2 mm (reference)
distance inward of the end face of the Ball Bearing 626VVC2PS2L [13] <12> (see Fig. 3).
The Dust Seal [12] <11> is an important element for improved dust protection of the Ball Bearing
626VVC2PS2L [13] <12>. Be sure to replace with a new one each time.
Armature shaft
About 0.2 mm (reference)
Ball Bearing 626VVC2PS2L [13] <12>
Dust Seal [12] <11>
(5) When connecting the Earth Terminal [43] <42> to the internal wire (the middle wire among three) of the Noise
Suppressor [47] <46>, strip the insulation sheath on the internal wire by about 6 mm and press-connect it
together with the Earth Terminal [43] <42> with a clamping tool available on the market.
Fig. 4
Solderless connection

--- 11 ---
(6) Mount the Cord [56] <55> according to the following
procedure when replacing the standard cord (cord armor is
integrally molded).
1) Remove the standard cord (cord armor is integrally
molded) according to the procedure of 8-1 (3).
2) Strip the coating on the internal wire of the Cord
[56] <55> about 10 mm from the tip and crimp the
Terminal [52] <51> to the brown or black internal wire as
shown in Fig. 5.
3) Insert the Cord [56] <55> into the Cord Armor D8.8 [53]
<52>.
4) Cut off the rib for holding the cord of Tail Cover (B) [48]
<47> with nippers as shown in Fig. 6.
5) Mount the Cord [56] <55> and the Cord Armor D8.8
[53] <52> to Tail Cover (A) [37] <36> and secure them
with the Cord Clip [54] <53> and two Tapping Screws
(W/Flange) D4 x 16 [55] <54> as shown in Fig. 7.
6) Mount each internal wire reversing the removal
procedure. Then mount Tail Cover (B) [48] <47> to Tail
Cover (A) [37] <36> and secure them with the Tapping
Screw (W/Flange) D4 x 25 (Black) [49] <48>.
Fig. 6
Fig. 7-1
Fig. 7-2
Fig. 5
Terminal [52] <51>
Cord [56] <55>
Caulking
A
Stripped
length
10 mm White
or blue
40 mm
85 mm
Black or brown
A --- A
Tail Cover (B)
[48] <47>
A
Approximately
2 mm
(a) For Taiwan and Korea (b) For China
(c) For Singapore and Malaysia (d) For other countries
: Cut off

--- 12 ---
Fig. 8
Bottom of the housing
(7) Connect the internal wires of Stator (A) [11] <10> correctly as shown in Fig. 8 and Fig. 9.
(8) Connect each internal wire correctly as shown in Fig. 7 being careful not to put them between the parts.
Brush Holder [42] <41>
Internal wire from Cord [56] <55>
Machine Screw (W/Washer) M3.5 x 6 [50] <49>
Guide Plate (Attached switch for Taiwan,
Singapore, Malaysia, China, Korea)
Machine Screw (W/Washer) M3.5 x 6 [50] <49>
Switch (1P Screw Type) [51] <50>
: Tail Cover (A) [37] <36>
Internal wire from Stator (A) [11] <10>
Internal wire from Noise Suppressor [47] <46>
Fig. 9
Internal wire coming from the
Noise Suppressor [47] <46>
Colorless
Insert the terminal securely then push
and fold the terminal toward the outside
of the housing as much as possible.
Colorless
(9) When replacing the Gear Cover Ass'y [4] <3>, lubricate the needle bearing part with mixed oil.
Mixed oil: A mixture of Hitachi Power Tool Grease No. 2 (Unilube No. 00 Code No. 939302 is recommended)
and turbine oil
Mixture ratio ......... 1:1 (weight ratio) Quantity........... 0.5 cc
OFF side
ON side

--- 13 ---
8-3. Lubrication Points and Types of Lubricant
Pinion chamber of Gear Cover Ass'y [4] <3> .............. Nippeco grease (SEP-3A) 5 g
(Code No. 930035 is recommended.)
Generously rub grease onto the gear and pinion.
Needle bearing ............................................................ Mixed oil 0.5 cc
Mixed oil: Mixture of Hitachi Power Tool Grease No. 2
(Unilube No. 00, Code No. 939302) and
turbine oil
Mixture ratio ................1:1 (weight ratio)
8-4. Tightening Torque
Tapping Screws D4
[10] <9> [38] <37> [39] <38> [49] <48> [55] <54> ................ 2.0 0.5 N•m (20 5 kgf•cm, 1.5 0.4 fb-lbs.)
Seal Lock Screws (W/Sp. Washer) M4 [18] <17> [23] <22>.. 1.8 0.4 N•m (18 4 kgf•cm, 1.3 0.3 fb-lbs.)
Machine Screw M5 [1] ............................................................ 3.7 0.7 N•m (35 7 kgf•cm, 2.6 0.6 fb-lbs.)
Tapping Screw D5 <1>............................................................ 2.9 0.5 N•m (30 5 kgf•cm, 2.2 0.4 fb-lbs.)
Machine Screw (W/Sp. Washer) M5 [27] <26> ......................... 1.6 0.4 N•m (16 4 kgf•cm, 1.2 0.3 fb-lbs.)
Special Nut M7 [5] <4> ........................................................... 6.4 1.0 N•m (65 10 kgf•cm, 4.7 0.7 fb-lbs.)
Brush Cap [40] <39> .............................................................. 0.6 0.2 N•m (6 2 kgf•cm, 0.4 0.1 fb-lbs.)
8-5. Wiring Diagram
(1) For Taiwan (2) For Korea
Gray
Noise
suppressor
Switch
Stator
Black
Black
Red
Colorless
Stator
Gray White
Red
Black
Connector
13Gray
Noise
suppressor
Cord
Switch
Stator Brown
Black
Stator
Gray Blue
Black
Connector
13
CR unit
White
White
Gray
Noise
suppressor
Cord
Switch
Stator Brown
Black
White
Stator
Gray Blue
Black
Piller Terminal
13
(3) For China (4) For Singapore and Malaysia
CR unit
White
CR unit
CR unit
Gray
Cord
Switch
Stator Brown
Black
Stator
Gray Blue
Black
13
Pillar terminal
Cord

--- 14 ---
8-6. Insulation Tests
On completion of disassembly and repair, carefully measure the insulation resistance and conduct a dielectric
strength test.
Insulation resistance: 7 MΩor more with 500 V DC megohm tester
Dielectric strength test: AC 4,000 V/1 minute with no abnormalities ....................220 V --- 240 V products
AC 2,500 V/1 minute with no abnormalities ....................110 V --- 127 V products
8-7. No-load Current Value
After no-load running for 30 minutes, the no-load current value should be as follows.
Voltage (V)
Current (A) max. 110
3.0
(5) For other countries
220
1.6 240
1.7
230
1.8
Gray
Cord
Switch
Stator Brown
Black
Stator
Gray Blue
Black
Connector
13

--- 15 ---
9. STANDARD REPAIR TIME (UNIT) SCHEDULES
MODEL 10 20 30 40
Fixed Variable
Work Flow
Gear Cover
Ass'y
Pushing Button
Lock Pin
60 min.
50
Packing Gland
Ball Bearing
(6201VV)
Spindle
Gear and
Pinion Set
Switch
Tail Cover (A)
Tail Cover (B)
Cord
Cord Armor
Wheel Guard
Ass'y
Armature
Ball Bearing
(628VV)
Bearing Holder
Dust Seal
Ball Bearing
(626VV)
Rubber Bushing
General Assembly
PDA-100K
G 10SK3
Housing Ass'y
Stator

ELECTRIC TOOL PARTS LIST
LIST NO. E265
DISC GRINDER
Model PDA-100K
2003
•
12
•
15
(E1)
Hitachi Power Tools
12345
6
7
8
9
10
11
12 13 14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
34
33
35
36 37 38 39
40 41 42
43 44
45
46
47 48 49
50
51
52
53
54
55
56
501
502

*ALTERNATIVE PARTS
--- 2 ---
ITEM
NO. CODE NO. DESCRIPTION REMARKS
NO.
USED
PARTS
12 -- 03
PDA-100K
1 949-242 MACHINE SCREW M5X22 (10 PCS.) 4
2 949-454 SPRING WASHER M5 (10 PCS.) 4
3 301-944 PUSHING BUTTON 1
4 316-484 GEAR COVER ASS’Y 1 INCLUD. 3, 17
5 301-941 SPECIAL NUT M7 1
6 628-VVC BALL BEARING 628VVC2PS2-L 1
7 316-480 BEARING HOLDER 1
* 8 360-567C ARMATURE 110V 1
* 8 360-567E ARMATURE 220V-240V 1
9 319-898 FAN GUIDE 1
10 320-677 TAPPING SCREW D4X70 2
* 11 340-514C STATOR (A) 110V 1
* 11 340-514E STATOR (A) 220V-230V 1
* 11 340-514G STATOR (A) 220V-230V 1 FOR CHN, KOR
* 11 340-514F STATOR (A) 240V 1
12 313-775 DUST SEAL 1
13 626-VVM BALL BEARING 626VVC2PS2L 1
14 309-929 RUBBER BUSHING 1
15 316-487 RETAINING RING FOR D11 SHAFT 1
16 316-486 WAVE WASHER 1
17 301-943 LOCK PIN 1
18 997-263 SEAL LOCK SCREW (W/SP. WASHER) M4X10 2
19 316-490 BEARING COVER 1
20 620-1VV BALL BEARING 6201VVCMPS2L 1
21 301-946 FELT PACKING 1
22 316-489 PACKING GLAND 1
23 307-127 SEAL LOCK SCREW (W/SP. WASHER) M4X12 4
24 302-047 WOODRUFF KEY 1
25 316-485 SPINDLE 1
26 301-945 FRINGER 1
27 308-386
MACHINE SCREW (W/SP. WASHER) M5X16 (BLACK) 2
28 301-949 SET PLATE 1
29 301-948 WHEEL GUARD ASS’Y 1 INCLUD. 27, 28
* 30 320-497 WHEEL WASHER 1
* 30 320-496 WHEEL WASHER 1 FOR KOR
* 31 316-820 D. C. WHEELS 100MMX4T A36Q (25 PCS.) 1
* 31 939-640 D. C. WHEELS 100MMX4T A36Q (20 PCS.) 1 FOR KOR
* 32 321-795 WHEEL NUT (C) 1
* 32 938-062 WHEEL NUT (B) 1 FOR KOR
33 321-450 GEAR AND PINION SET 1
34 HITACHI LABEL 1
35 320-675 HOUSING ASS’Y 1 INCLUD. 14
36 NAME PLATE 1
37 322-533 TAIL COVER (A) 1
38 302-086
TAPPING SCREW (W/FLANGE) D4X20 (BLACK) 1
39 306-664 TAPPING SCREW (W/FLANGE) D4X40 1
40 936-551 BRUSH CAP 2
41 999-021 CARBON BRUSH (1 PAIR) 2
42 313-777 BRUSH HOLDER 2
* 43 314-854 EARTH TERMINAL 1 FOR TPE
* 44 980-063 TERMINAL 1 FOR NOISE SUPPRESSOR