Hitachi SV 13YB Manual

TECHNICAL DATA
AND
SERVICE MANUAL
RANDOM ORBIT SANDER
SV 13YA
SV 13YB
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
LIST Nos. SV 13YA: 0356
SV 13YB: 0355
Jun. 2005
S
MODELS
SV 13YA
SV 13YB
Hitachi 
Power Tools

B1
B2
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
MAKITA
C1
C2
A1
A2 DEWALT DW423K
DW421
PORTER CABLE 333VS
333
BO5012
BO5010

Page
CONTENTS
1. PRODUCT NAME ............................................................................................................................ 1
2. MARKETING OBJECTIVE .............................................................................................................. 1
3. APPLICATIONS ............................................................................................................................... 1
4. SELLING POINTS ........................................................................................................................... 1
4-1. Selling Point Descriptions ................................................................................................................ 2
5. SPECIFICATIONS ........................................................................................................................... 3
5-1. Specifications ....................................................................................................................................3
6. COMPARISONS WITH SIMILAR PRODUCTS ............................................................................... 4
7. PRECAUTIONS IN SALES PROMOTION ...................................................................................... 5
7-1. Handling Instructions ........................................................................................................................5
7-2. Caution on Name Plate .....................................................................................................................5
8. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY ............................................................. 6
8-1. Disassembly .....................................................................................................................................6
8-2. Reassembly ......................................................................................................................................6
8-3. Tightening Torque .............................................................................................................................7
8-4. Wiring Diagram ................................................................................................................................ 8
8-5. Insulation Tests ................................................................................................................................ 9
8-6. No-Load Current Value .....................................................................................................................9
9. STANDARD REPAIR TIME (UNIT) SCHEDULES ........................................................................ 10
Assembly Diagram for SV 13YA
Assembly Diagram for SV 13YB

--- 1 ---
1. PRODUCT NAME
Hitachi Random Orbit Sander, Model SV 13YA (Variable speed)
Model SV 13YB
2. MARKETING OBJECTIVE
The scale of the random sander market is large. With the introduction of two palm-grip random orbit sanders
Model SV 13YA (variable speed type) and the Model SV 13YB (single speed type), we fill out our line of sanders
and aim to increase sales.
(1) High sanding performance
(2) High dust collecting performance
(3) All new design. The large soft grip comfortably fits in the palm of a hand for ease of operation.
3. APPLICATIONS
Roughing or finishing of wood work and metal surfaces
Preliminary sanding of wood work and metal surfaces before painting
Paint removal
Rust removal
4. SELLING POINTS
High dust collecting performance
1.03 times higher compared to A1 and A2
2.12 times higher compared to B1 and B2
The same as C1 and C2
All new design
The large soft grip comfortably fits in the
palm of a hand for ease of operation.
A1, A2, B1, B2 and C1: Not provided
Equipped with electronic control devices. (SV 13YA only)
Variable speed control
Stable speed control
High sanding performance
1.43 times higher compared to A1 and A2
1.54 times higher compared to B1 and B2
1.03 times higher compared to C1 and C2

--- 2 ---
4-1. Selling Point Descriptions
(1) High sanding performance
77 g
Sanding amount
56 g
80 g
52 g
(2) High dust collecting performance
*Testing conditions for measurement of the sanding amount and the percentage of dust collection
Workpiece: Lauan Pressing load: 29.4 N (3 kgf)
Sanding time: 15 minutes Sanding paper: A-P80
C1, C2
Maker
A1, A2
HITACHI SV 13YA/SV 13YB
B1, B2
Model
97
Sanding amount
70
100
65
70 %
Percentage of dust collection
65 %
70 %
33 %
C1, C2
Maker
A1, A2
HITACHI SV 13YA/SV 13YB
B1, B2
Model
100
Dust collection ratio
93
100
48
(3) All new design. The large soft grip comfortably fits in the palm of a hand for ease of operation.
The Models SV 13YA and SV 13YB have a large soft grip that comfortably fits in the palm of a hand (double
molded housing with elastomer). C1 has a small soft grip. It is easier to operate than A1, A2, B1, B2, C1 and
C2.

--- 3 ---
5. SPECIFICATIONS
5-1. Specifications
Item SV 13YA
Sanding paper size
(outer diameter)
Orbital diameter
110 V
50 Hz
Voltage, current and
power input
AC single phase commutator motorType of motor
Slide switchType of switch
Housing ••• ••• ••••Glassfiber reinforced polycarbonate (green)
and elastomer (black)
Lower cover •••••Glassfiber reinforced polycarbonate (black)
Enclosure
Plastic case
(in corrugated cardboard sleeve)
Net* (excludes cord)
Gross
Packaging
Sanding paper •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1
Dust bag ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1
* Standard accessories
* : Depends on the market.
Weight
230 W
SV 13YB
Sanding pad size
(outer diameter)
125 mm (5")
125 mm (5")
AC single phase
Power source AC single phase 50 Hz or 60 Hz
3.2 mm (1/8")
120 V
60 Hz
2.4 A
220 V
50 Hz
230 W
230 V
50 Hz
240 V
50 Hz 110 V 120 V
2.0 A
220 V
230 W
230 V 240 V
2.2 A 1.1 A
1.1 A 1.0 A
No-load speed 12,000/min
7,000 --- 12,000/min
1.4 kg (3.1 lbs.)
3.1 kg (6.8 lbs.) 1.8 kg (4.0 lbs.)
Corrugated cardboard box

--- 4 ---
145
(5-11/16")
140
(5-1/2")
6. COMPARISONS WITH SIMILAR PRODUCTS
Maker •Model HITACHI
125 (5")
Soft-touch grip
mm
Orbital diameter 3.2 (1/8")
Power input (120 V)
No-load speed
Provided
Weight (excludes cord)
Standard accessories *1
W
Item
Sanding paper size
(outer diameter)
Sanding pad size
(outer diameter)
Name plate and catalog
specifications
mm
mm
/min.
kg
Max. output *1
No-load noise level *1
No-load vibration level *1
W
dB
dB
mm
Overall height
SV 13YA SV 13YB
125 (5")
(2.4 A)
230
(2.0 A)
7,000 ---
12,000 12,000
1.4
(3.1 lbs.)
1.4
(3.1 lbs.)
154 119
79
122
145
(5-11/16")
Sanding paper (1 pc.)
Dust bag (1 pc.)
125 (5")
2.4 (3/32")
Not provided
A1 A2
125 (5")
(2.0 A) (2.0 A)
7,000 ---
12,000 12,000
1.5
(3.3 lbs.)
1.4
(3.1 lbs.)
103
79
124
152
(6")
Dust bag (1 pc.)
Brake (1 pc.)
125 (5")
3.2 (1/8")
Not provided
B1 C2
125 (5")
(2.4 A) (2.0 A)
5,000 ---
12,000 12,000
1.5
(3.3 lbs.)
1.2
(2.7 lbs.)
78
123
146
(5-12/16")
Sanding paper (1 pc.)
Dust bag (1 pc.)
161
(6-5/16")
125 (5")
2.4 (3/32")
Provided
(small)
C1
B2
125 (5")
(2.0 A)
(2.4 A)
4,000 ---
12,000
12,000
1.3
(2.9 lbs.)
1.4
(3.1 lbs.)
79
123
165
(6-1/2")
Sanding paper (1 pc.)
Dust bag (1 pc.)
109
Not
provided

--- 5 ---
7. PRECAUTIONS IN SALES PROMOTION
In the interest of promoting the safest and most efficient use of the Models SV 13YA and SV 13YB Random Orbit
Sanders 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
safety hazards, the dangers inherent in the use of any electric tool cannot be completely eliminated. Accordingly,
general precautions and suggestions for the use of the hand shear 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. Precaution on Nameplate
The Models SV 13YA and SV 13YB are provided with a nameplate which lists basic precautions (illustrated below)
in the use each. Carefully ensure that the customer fully understands and follows these precautions before using
the tool.
(1) For the U.S.A. and Canada
(2) For New Zealand and Australia
(3) For China

--- 6 ---
8. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY
The [Bold] numbers in the descriptions below correspond to the numbers in the parts List and the exploded
assembly diagram for the Model SV 13YA, and the <Bold> numbers to those in the Parts list and the exploded
assembly diagram for the Model SV 13YB.
8-1. Disassembly
(1) Removal of the Armature [24] <23> and the Stator [23] <22>
Remove the three Seal Lock Screws (W/Washers) M4 x 16 (Black) [35] <34> and remove the surrounding
parts such as the Pad (Pressure Sensitive Type) [34] <33>, Bearing Cover [33] <32> and Brake [32] <31>.
Remove the two Tapping Screws (W/Flange) D4 x 20 (Black) [2] <2> and remove Lower Cover (A) [13] <12>,
Lower Cover (B) [4] <4> and O-ring [3] <3>. The acuminate driver etc. are inserted between the O-ring [3]
<3> and the groove of the housing and the O-ring [3] <3> is detached.
Remove Seal Lock Flat Hd. Screw M4 x 12 [31] <30> while suppressing Balance Fan [26] <25> by the hand
so that Balance Fan [26] <25> should not rotate. Remove the Washer [30] <29>, Ball Bearing
6002DDWCMPS2L [29] <28>, Bearing Holder [28] <27>, Dust Washer [27] <26> and Balance Fan [26] <25>.
Remove the five Tapping Screws (W/Flange) D4 x 20 (Black) [2] <2>, and remove Housing (A).(B) Set [1]
<1>.
Remove the Carbon Brush (1 Pair) [22] <21> together with the Brush Holder [21] <20>. Lift the Stator [23]
<22> and pull out the Armature [24] <23>.
After pulling out the Armature [24] <23>, disconnect the Internal Wire (Brown) [16] <15>, Internal Wire (Blue)
[19] <18>, Tab Terminal (Blue) [17] <16>, Tab Terminal (Brown) [20] <19> from the terminals of the Stator [23]
<22>. Then pull out the Stator [23] <22>.
8-2. Reassembly
Reassembly can be accomplished by following the disassembly procedures in reverse. However, special
attention should be given to the following items.
(1) Assembly of the Dust Washer [27] <26>
Be sure to mount the Dust Washer [27] <26> in correct direction as shown in Fig. 1. Otherwise, the Ball
Bearing 6002DDWCMPS2L [29] <28> can be damaged at an early stage.
Fig. 1
Dust Washer [27] <26>
1
2
3
4
6
Ball Bearing 6002DDWCMPS2L [29] <28>

--- 7 ---
(2) Wiring the Stator [23] <22>
When wiring the Stator [23] <22>, be sure to insert each terminal in correct direction as shown in Fig. 2.
At this time, securely insert each terminal as far as it will go.
Fig. 2
Viewed from the commutator
Tab Terminal (Blue) [17] <16>
Internal Wire (Brown) [16] <15>
Tab Terminal (Brown) [20] <19>
Internal Wire (Blue) [19] <18>
8-3. Tightening Torque
(1) Tapping Screw (W/Flange) D4 x 20 (Black) [2] <2> ............... 2.0 0.5 N•m (20 5 kgf•cm, 1.5 0.4 ft-lbs.)
(2) Tapping Screws (W/Flange) D4 x 16 [7] <6> .......................... 2.0 0.5 N•m (20 5 kgf•cm, 1.5 0.4 ft-lbs.)
(3) Seal Lock Flat Hd. Screw M4 x 12 [31] <30> ......................... 1.8 0.4 N•m (18 4 kgf•cm, 1.3 0.3 ft-lbs.)
(4) Seal Lock Screw (W/Washers) M4 x 16 (Black) [35] <34> .... 1.8 0.4 N•m (18 4 kgf•cm, 1.3 0.3 ft-lbs.)