Hitachi CR 13VBY Technical Data And Service Manual

POWER TOOLS

TECHNICAL DATA

AND

SERVICE MANUAL

RECIPROCATING SAW

CR 13VBY

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

LIST No. E713 Feb. 2007

C

MODEL

CR 13VBY

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

Milwaukee

6536-21

M

BOSCH

GSA1100PE

B

Makita

JR3070CT

J

CONTENTS

Page

1. PRODUCT NAME ............................................................................................................................ 1

2. MARKETING OBJECTIVE .............................................................................................................. 1

3. APPLICATIONS ............................................................................................................................... 1

4. SELLING POINTS ........................................................................................................................... 1

4-1. Selling Point Descriptions ................................................................................................................ 2

5. SPECIFICATIONS ........................................................................................................................... 8

5-1. Specifications ....................................................................................................................................8

5-2. Optional Accessories ........................................................................................................................9

6. COMPARISONS WITH SIMILAR PRODUCTS .............................................................................. 11

6-1. For the U.S.A. Market ..................................................................................................................... 11

6-2. For European Market ...................................................................................................................... 11

7. COMPARISONS IN VIBRATION LEVEL ...................................................................................... 12

8. COMPARISONS IN CUTTING TIME ............................................................................................. 13

8-1. Cutting Steel Pipes .........................................................................................................................13

8-2. Cutting Wood ..................................................................................................................................14

8-3. Cutting Steel Pipes with Reversely Mounted Blade ........................................................................15

8-4. Cutting Wood with Reversely Mounted Blade ................................................................................16

8-5. Cutting Operation for Long Blade Life ............................................................................................17

9. PRECAUTIONS IN SALES PROMOTION .................................................................................... 18

9-1. Handling Instructions ......................................................................................................................18

9-2. Caution Plate ..................................................................................................................................18

10. REPAIR GUIDE ........................................................................................................................... 19

10-1. Precautions in Disassembly and Reassembly ..............................................................................19

10-2. Lubrication ....................................................................................................................................28

10-3. Tightening Torques .......................................................................................................................29

10-4. Wiring Diagram .............................................................................................................................29

11. CONFIRMATION AFTER REASSEMBLY ................................................................................... 31

11-1. Internal Wire Precautions ..............................................................................................................31

11-2. Insulation Tests .............................................................................................................................31

11-3. No-load Current Value...................................................................................................................31

12. STANDARD REPAIR TIME (UNIT) SCHEDULES ...................................................................... 32

Assembly Diagram for CR 13VBY

--- 1 ---

1. PRODUCT NAME

Hitachi 130 mm Reciprocating Saw, Model CR 13VBY

2. MARKETING OBJECTIVE

The new Model CR 13VBY is a low-vibration reciprocating saw. It is equipped with the counter weight mechanism

to greatly reduce vibration during cutting operation. Moreover, the Model CR 13VBY offers the class-top cutting

performance thanks to the powerful motor. Features of the Model CR 13VBY include the Hitachi-original swing cut

mechanism, toolless blade detachable mechanism, and double-molded front cover and handle for easier

operation and maintenance.

3. APPLICATIONS

Cutting pipes and angles

Cutting or plunge cutting in various types of wood workpieces

Cutting various types of metals such as mild steel, aluminum and copper

Cutting various types of synthetic resin materials such as bakelite and vinyl chloride

4. SELLING POINTS

Saw blade can be

mounted in either upward

or downward direction

Fast cutting speed thanks to the high-power motor

Vibration is greatly reduced thanks to the counter

weight mechanism

Comfortable soft grip

handle

Swing cut mechanism

Toolless blade

detachable mechanism

Toolless base

adjustment mechanism

Dust- and water-resistant

triple-sealing construction

Speed selectable dial

and switch trigger

Durable double-molded

front cover

Powerful and unique design

--- 2 ---

4-1. Selling Point Descriptions

(1) Vibration is greatly reduced thanks to the counter weight mechanism

There is a low-vibration counter weight mechanism in the Model CR 13VBY. Vibration is suppressed by

reciprocating the counter weight in a direction opposite to the plunger that reciprocates in forward and

backward direction. Thus the Model CR 13VBY can greatly reduce vibration experienced by the user during

cutting operation (about one third of the vibration level of the current Model CR 13VA).

Reciprocating in opposite directions

<Low-vibration mechanism>

Plunger

(Reciprocating shaft)

Plunger

Counter weight

Gear

(2) Fast cutting speed thanks to the high-power motor

The Model CR 13VBY can cut various construction materials efficiently thanks to the high-power motor whose

maximum output is over 1,300 W. The number of strokes is also increased to "0 to 3,000 min

-1

" (Model

CR 13VA: 0 to 2,800 min

-1

) for faster cutting speed.

(3) Speed selectable dial and switch trigger

The Model CR 13VBY is equipped with the electronic control circuit to adjust the cutting speed steplessly by

means of the dial and the switch trigger depending on working conditions and workpieces.

--- 3 ---

(4) Toolless blade detachable mechanism (Same as the Model CR 13V)

Recently, most saber saws on the market are equipped with a mechanism that requires no tool such as a

hexagonal wrench for mounting and removal of saw blades. The Model CR 13VBY is also equipped with such

a mechanism in order to replace the saw blade speedily.

[ Features of the toolless blade detachable mechanism ]

Easy to mount and remove the saw blade

The saw blade can be easily mounted and removed just by pressing the lever.

Stronger bolt

The Model CR 13VBY is equipped with the special bolt M5 that is stronger than the special bolt M4 of the

former Model CR 13V.

(b) Insert the saw blade all the way into the small

slit of the plunger tip with the lever pushing.

(c) Release the lever and pull back the saw blade two or three times by hand to check that the blade is

securely mounted. When pulling the blade, you will know it is properly mounted if it clicks and the lever

moves slightly.

Lever

Saw blade

Click

(a) Push the lever in the direction of the arrow

marked on the lever.

Lever

Saw blade

Lever

--- 4 ---

< Construction of the toolless blade detachable mechanism >

Blade holder

Holder pin to secure the blade

Spring to pull back

the holder pin

Saw blade

Lever to mount and remove the saw

blade

Special bolt

Spring

Plunger

(Reciprocating shaft)

Heat-insulating and dust-

resistant rubber cap

< Maintenance of the toolless blade detachable mechanism >

After use, clean the toolless blade detachable mechanism with a brush for smooth functioning. In addition to

the regular maintenance, perform the following effective maintenance occasionally.

Cleaning the inside of the toolless blade detachable mechanism

Pull the rubber cap provided on the lever in the arrow direction as shown below. Then the rubber cap can be

easily removed from the lever. Remove dust from the inside of the blade holder by spraying air or the like.

Periodically lubricate around the blade holder with cutting oil.

Lever

Rubber cap

Lever

Cutting oil

Nut

--- 5 ---

Do not use any saw blade with a worn-out blade hole

The saw blade may come off if the blade hole is worn out. Replace such saw blade with new one. If the

new saw blade comes off even after replacement, the holder pin may be worn out. Replace the holder pin

with new one.

(5) Saw blade can be mounted in either direction, upward or downward

The Model CR 13VBY is convenient for cutting materials on the floor or near the wall, and also for plunge

cutting on plywood panels because the saw blade can be mounted in reverse.

Blade hole

Refer to the Handling Instructions

for detailed information about plunge

cutting on plywood panels.

(6) Swing cut mechanism

Cutting operation is selectable between smooth "straight cut mode" and efficient "swing cut mode" by

switching the change lever. When the swing cut mode is selected, the rear of the plunger (reciprocating shaft)

moves up and down along the slope of the counter weight in the gear case through the swing roller to

powerfully cut into a workpiece. The amount of rebound is less than the conventional orbital cutting, and soft

wood workpieces can be cut efficiently in this mode. Moreover, the swing cut mode is selectable even if the

saw blade is mounted in reverse. This is an innovative cutting mechanism. (Note that the swing cut mode is

not selectable if the saw blade is mounted in reverse for the Model CR 13VBY shipped to the U.S.A. and

Canada.)

--- 6 ---

Movement of the saw

blade mounted ordinarily

Counter weight

Swing roller mounted to

the rear of the plunger

Slant when the saw blade

is mounted ordinarily

Movement of the saw

blade mounted in reverse

Slant when the saw blade

is mounted in reverse

(7) Dust-and water-resistant triple-sealing construction

The Model CR 13VBY has a triple-sealing construction to protect from a large amount of dust generated when

cutting construction materials such as autoclaved lightweight concrete panels and also from waste water when

cutting pipes.

Dust-resistant felt ring

It prevents dust from entering by way of the plunger (reciprocating shaft).

Dust-and water-resistant seal ring (made of heat-resistant rubber)

It prevents dust and waste water from entering by way of the plunger (reciprocating shaft).

Dust- and water-resistant seal sleeve (made of heat-resistant rubber)

It prevents dust and waste water from entering by way of the gear case.

1

2

3

Plunger

Seal sleeve

Seal ring

Felt ring

< Triple-sealiing construction >

--- 7 ---

(8) Comfortable double-molded (elastomer and plastic) handle

The handle is slip-resistant and comfortably fits in the hand thanks to the double-molded construction

(elastomer and glassfiber reinforced polycarbonate). You can see the excellence especially when you operate

the Model CR 13VBY wearing working gloves.

(9) Durable double-molded (elastomer and plastic) front cover

The front cover is durable, heat-resistant and easy to operate thanks to the double-molded construction

(glassfiber reinforced polycarbonate at the front cover main body and elastomer at the front grip). The front

grip is far easier to hold than that of the former Model CR 13VA thanks to the new slender and comfortable

shape and slip-resistant elastomer for safer operation.

Former Model CR 13VA

Model CR 13VBY

--- 8 ---

5. SPECIFICATIONS

Max. cutting size Steel pipe: Outer diameter 130 mm (5")

Wood: Thickness 300 mm

5" (for the U.S.A. and Canada)

Mild steel plate: Thickness 19 mm (3/4")

Power source

AC single phase 50 or 60 Hz

Type of switch

Enclosure

Type of motor

Full load current

Weight

Stroke

Number of strokes

Max. output (reference)

Power consumption

Single-phase series commutator motor

Variable-speed trigger switch

Blade No. 341

••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

1

No. 132 (For the U.S.A. and Canada)

••••••••••••••••••••••••••••••••••••••••••••••••••

1

Plastic case

•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

1

Net

•••••••••••••••••••

4.4 kg (without cord)

Gross

•••••••••••••••

7.4 kg

32 mm (1-1/4")

1,450 W

1,300 W (For the U.S.A. and Canada)

1,150 W

1,370 W (For the U.S.A. and Canada)

110 V

•••••••••••••••••••••••••

11 A

120 V

•••••••••••••••••••••••••

12 A

220 V

•••••••••••••••••••••••••

5.5 A

230 V

•••••••••••••••••••••••••

5.3 A

240 V

•••••••••••••••••••••••••

5.0 A

Packaging

No load

•••••••••••••••••••

0 to 3,000 min

-1

{strokes/min.}

Full load

••••••••••••••••••

2,450 min

-1

{strokes/min.} [at the max. speed (dial setting 5)]

2,040 min

-1

{strokes/min.} (for the U.S.A. and Canada) [dial setting 5]

Standard accessories

Capacity

5-1. Specifications

Housing

••••••••••••••••••••••••••••••••

Nylon resin

Handle

••••••••••••••••••••••••••••••••••

Polycarbonate resin and elastomer

Front cover

•••••••••••••••••••••••••••

Polycarbonate resin and elastomer

Gear cover and inner cover

••••

Die-cast aluminum alloy

Plastic case (Packed in a corrugated cardboard box)

Cord length

2.5 m (8.2 ft.)

Dimensions

465 mm in length, 167 mm in height and 103 mm in width

--- 9 ---

5-2. Optional Accessories

(a) High-speed steel blades

For cutting and roughing lumber

Blade No. Uses Thickness (mm)

For cutting steel pipes less than 105 mm in outer diameter 2.5 --- 6

No. 1

No. 3

No. 96

No. 95

No. 9

No. 8

No. 5

No. 4

No. 2

For cutting steel pipes less than 30 mm in outer diameter

For cutting and roughing lumber

For cutting vinyl chloride pipes less than 105 mm in outer

diameter

For cutting and roughing lumber

For cutting steel pipes less than 130 mm in outer diameter

For cutting steel and stainless pipes less than 105 mm in

outer diameter

For cutting steel and stainless pipes less than 30 mm in

outer diameter

2.5 --- 6

50 --- 70

2.5 --- 6

Below 2.5

Below 3.5

Below 30

Below 50

2.5 --- 15

The cutting speed of the Model CR 13VBY is substantially higher than that of the current model. However, the

conventional high-speed steel blades may be easily broken in heavy applications such as house demolition. To

cope with this problem, the bimetal blades shown in the following table are provided as optional accessories. The

bimetal blades are tough and rarely break since they are made of two different types of steels by electron-beam

welding. A very hard steel called "DM05" (JIS SKH51 or equivalent molybdenum containing high-speed steel) or

"Matrix II" (JIS SKH56 or equivalent cobalt containing high-speed steel) is used at the cutting edges, and a flexible

spring steel is used for the blade main body. Thus the bimetal blades are remarkably stronger than the

conventional high-speed steel blades.

(b) Bimetal blades

Blade No. Uses

Thickness (mm)

2.5 --- 6

For cutting steel and stainless pipes less than 60 mm in outer diameter

No. 101

For cutting steel and stainless pipes less than 60 mm in outer diameter

No. 103

For cutting steel and stainless pipes less than 130 mm in outer diameter

No. 102

For cutting steel and stainless pipes less than 130 mm in outer diameter

No. 104

For cutting steel and stainless pipes less than 60 mm in outer diameter

No. 107

For cutting steel and stainless pipes less than 130 mm in outer diameter

No. 110

For cutting steel and stainless pipes less than 60 mm in outer diameter

No. 109

2.5 --- 6

Below 3.5

2.5 --- 6

--- 10 ---

Blade No. Uses

Thickness (mm)

For cutting steel and stainless pipes less than 130 mm in outer diameter

No. 108

For cutting and roughing lumberNo. 121

All purposeNo. 131

Below 3.5

300

All purpose

No. 132

The latest curved blade can offer higher cutting speed and longer life thanks to the strong bimetal material and the

curved shape that properly fits workpieces. The curved blade is also available as an optional accessory.

(c) Curved blade

* The curved blade is not available in some areas.

* Do not use the curved blade for the swing cut operation. Otherwise, the blade may be broken or the Model

CR 13VBY may be damaged.

Blade No. Uses

Thickness (mm)

For cutting steel and stainless pipes less than 60 mm in outer diameter

No. 341

2.5 -

--

6

Below 3.5

(d) Selection of blades for other materials

Material to be cut

Material quality

2.5 --- 9

No. 1, 2, 101, 102, 103, 104,

105, 106, 131, 132

No. 3, 107, 108

Iron plate

Synthetic resin

Nonferrous metal

Mild steel plate

Aluminum

Copper

Brass

Vinyl chloride resin

Acrylic resin

Phenol resin

Melamine resin

Thickness (mm)

Below 5

No. 3, 107, 108

No. 1, 2, 101, 102, 103, 104,

105, 106, 131, 132

5 --- 20

5 --- 30

10 --- 50

5 --- 30

10 --- 60

No. 3, 5, 8, 105, 106, 107, 108

No. 1, 2, 4, 101, 102, 103, 104,

131, 132

No. 3, 5, 8, 105, 106, 107, 108

No. 1, 2, 4, 101, 102, 103, 104,

131, 132

Blade No.

--- 11 ---

Maker

HITACHI

Model CR 13VA

CR 13V

Voltage V

inch

/min.

A

inch

lbs.

dB

Stroke

No-load speed

Max. output

Dimensions

Net weight

Vibration

No-load noise

Features

L

H

W

Variable speed

Toolless blade

Toolless base

Handle

Sealing

construction

CR 13VBY

Rated current

W

Front cover

120

12

1-1/4

1,300

18.3

6.6

4.1

9.7

119

93.0

Plastic and

rubber

Triple-seal

0 -- 3,000

T&D

Swing

Plastic and

rubber

120

11

1-1/4

1,070

18.1

6.5

4.1

8.8

126

91.0

Plastic and

rubber

Triple-seal

0 -- 2,800

T&D

Swing

Plastic and

rubber

120

10

1-1/8

1,030

17.1

6.5

3.7

7.3

124

89.0

Rubber

Triple-seal

0 -- 2,800

T

Plastic

J

115

15

1-1/4

19.1

7.1

3.9

9.7

121

Rubber

Double-seal

0 -- 2,800

T&D

Orbital

Plastic and

rubber

M

120

13

1-1/4

18.8

9.8

119

Rubber

Double-seal

0 -- 3,000

T

Orbital

Plastic and

rubber

92.3

1-1/4

0 -- 2,700

19.6

6.9

3.9

9.7

123

91.7

T&D

Rubber

Plastic

Double-seal

Orbital

Cutting action

B

Maker

HITACHI

Model CR 13VA

CR 13V

Voltage V

mm

/min.

W

mm

kg

dB

Stroke

No-load speed

Max. output

Dimensions

Net weight

Vibration

No-load noise

Features

L

H

W

Variable speed

Toolless blade

Toolless base

Handle

Sealing

construction

CR 13VBY

Power input

W

Front cover

230

1,150

32

1,450

465

167

103

4.4

119

93.0

Plastic and

rubber

Triple-seal

0 -- 3,000

T&D

Swing

Plastic and

rubber

230

1,150

32

1,180

462

165

106

4.0

126

91.0

Plastic and

rubber

Triple-seal

0 -- 2,800

T&D

Swing

Plastic and

rubber

230

1,010

29

1,030

435

165

95

3.3

124

89.0

Rubber

Triple-seal

0 -- 2,800

T

Plastic

J

32

485

181

99

4.4

121

Rubber

Double-seal

0 -- 2,800

T&D

Orbital

Plastic and

rubber

M

230

32

476

4.4

119

Rubber

Double-seal

0 -- 3,000

T

Orbital

Plastic and

rubber

92.3

32

0 -- 2,700

499

175

98

4.4

123

91.7

T&D

Rubber

Plastic

Double-seal

Orbital

Cutting action

B

1,100

6. COMPARISONS WITH SIMILAR PRODUCTS

6-1. For the U.S.A. Market

6-2. For European Market

*T: Variable speed control with trigger D: Variable speed control with dial

--- 12 ---

0

10

20

30

5

CR 13VBY

J

M

B

15

25

CR 13VA

7. COMPARISONS IN VIBRATION LEVEL

Following test data should be used for reference purposes since the vibration level may vary depending on the

operating conditions such as the cutting function, pressing force, type of blade, etc. The graph shows the triaxial

composite vibration levels when cutting plywood panels 19 mm in thickness.

Triaxial composite vibration levels (m/s

2

)

--- 13 ---

8. COMPARISONS IN CUTTING TIME

Following test data should be used for reference purposes. The graph shows the time (in sec.) required for cutting

a piece of each material. (*Note that the swing cut mode is not selectable if the saw blade is mounted in reverse

for the Model CR 13VBY shipped to the U.S.A. and Canada.)

8-1. Cutting Steel Pipes

A steel pipe 42 mm (1.65") in inner diameter

and 3.2 mm (0.13") in thickness

Pressing force about

5 kgf (11 lbs.)

Blade No. 103

for cutting steel pipes

Swing cutting

Orbital cutting

Swing or orbital cutting

Straight cutting

CR 13VBY

CR 13VA

J

M

B

0

20

15

105

Cutting time (sec./cut)

--- 14 ---

SPF 2 x 10

Pressing force about

5 kgf (11 lbs.)

8-2. Cutting Wood

Blade No. 121

for cutting wood

Swing cutting

Orbital cutting

Swing or orbital cutting

Straight cutting

CR 13VBY

CR 13VA

J

M

B

0

10

6

428

Cutting time (sec./cut)

--- 15 ---

8-3. Cutting Steel Pipes with Reversely Mounted Blade

Pressing force

about 5 kgf (11 lbs.)

Blade No. 103

for cutting steel pipes

A steel pipe 42 mm (1.65") in inner

diameter and 3.2 mm (0.13") in thickness

Swing cutting

Orbital cutting

Swing or orbital cutting

Straight cutting

CR 13VBY

CR 13VA

J

M

B

0

50

30

2010 40

Cutting time (sec./cut)

--- 16 ---

8-4. Cutting Wood with Reversely Mounted Blade

SPF 2 x 10

Pressing force

about 5 kgf (11 lbs.)

Blade No. 121

for cutting wood

Swing cutting

Orbital cutting

Swing or orbital cutting

Straight cutting

CR 13VBY

CR 13VA

J

M

B

0

25

15

10520

Cutting time (sec./cut)

--- 17 ---

8-5. Cutting Operation for Long Blade Life

The service life of a saw blade may vary depending on the operating conditions such as the type of cutting

operation, pressing force, etc. Observing the following instructions can lengthen the service life of a saw blade, for

reference.

Heat generated in the cutting operation can significantly affect the service life of the saw blade. Continued cutting

operation with the cutting edge of the saw blade heated to red hot can decrease the hardness of the saw blade

because the cutting edge is annealed. The saw blade is then worn out in a short time and nothing can be cut.

The merits of moving the saber saw up and down are described below.

The seesaw motion of the saw blade can minimize heating.

The effective cutting length of the blade is longer than that of an ordinary cutting operation. Thus, the service

life of the saw blade can be lengthened and the cutting speed can be faster. Cutting wood in the same

manner can also make the cutting speed faster.

1

2

Application of undue force to the workpiece during the cutting operation can heat up the cutting edge of the saw

blade and the number of strokes can decrease, causing reduction of speed. Appropriate pressing force is about

4 to 5 kgf.

Do not apply undue force to the workpiece

2

1 Move the saber saw handle up and down repeatedly during the cutting operation

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Hitachi CR 13VBY Technical Data And Service Manual

Hitachi CR 13VBY Technical Data And Service Manual

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