HITACHI C 10FCD TECHNICAL DATA AND SERVICE MANUAL

COMPOUND SAW

MODEL

C 10FCD

POWER TOOLS

TECHNICAL DATA

AND

C 10FCD

SERVICE MANUAL

LIST No. E928 May 1999

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

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:

Competitors

Symbols Utilized

Company Name

Model Name

C MAKITA

DELTA

36-220

LS1040

CONTENTS

[ Business Section ]

1. PRODUCT NAME

2. MARKETING OBJECTIVE

3. APPLICA TIONS

4. SELLING POINTS

4-1. Selling Point Descriptions 4-2. Electronic Control and Its Functions

5. SPECIFICATIONS

6. COMPARISONS WITH SIMILAR PRODUCTS

7. PRECAUTIONS IN SALES PROMOTION

7-1. Instruction Manual

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

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

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

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

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

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

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

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

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

8. ADJUSTMENT AND OPERATIONAL PRECAUTIONS

8-1. Confirmation of Saw Blade Lower Limit Positioning 8-2. How to Use the Vise Ass'y 8-3. Cutting Operation

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

8-4. Precautions Concerning Electronic Control

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

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

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

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

Page

1 1 1 1

2 6

8 9 11

12 12 13 15

9. ADJUSTMENT OF COMPONENTS

9-1. Bevel Angle Adjustment

10. PACKING

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

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

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

[ Service Section ]

11. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY

11-1. Disassembly 11-2. Reassembly 11-3. Wiring Diagram 11-4. Lead Wire Precautions 11-5. No-load Current 11-6. Reassembly Requiring Adjustment 11-7. Lubrication 11-8. Product Precision

12. REPAIR GUIDE

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

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

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

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

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

18 24 25 25 26 26 27 27

13. STANDARD REPAIR TIME (UNIT) SCHEDULES

[ Appendix ]

Assembly Diagram for C 10FCD

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

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

1. PRODUCT NAME

Hitachi Compound Saw, Model C 10FCD

2. MARKETING OBJECTIVE

The Model C 10FCD features two outstanding innovations: (1) The saw blade section (head) can be tilted both to the right and left, permitting easy bevel cutting of a clamped workpiece. (2) Electronic control which minimizes blade rotation speed change during the cutting operation, thereby providing smoother, cleaner-cuts. These features are an industry first in the 10" compound saw field. Because of these leading innovations in operability (right-left bevel cutting and high-quality finish on surfaces), the Model C 10FCD is expected to be the new leader in 10" compound saw market.

3. APPLICA TIONS

Cutting various types of wood workpieces Cutting workpieces of plywood, decoration panels, soft fiberboard and hardboard Cutting aluminum sashes

4. SELLING POINTS

(6)

Minimized reaction during motor start up

(7)

Poly V belt overload protection

Electronically controlled soft start and motor torque

(5)

Fine surface finish on cuts

Electronically controlled constant-speed

(3)

Right and left bevel cutting

(4)

Compound miter and right/left bevel cutting

(1)

Press cutting

(8)

Equipped with debris guard to restrict dispersion of chips for enhanced safety in operation

(9)

Lightweight design: 13 kg

(Note) Numerals in ( ) are identical with item numbers in "4-1. Selling Point Descriptions"

--- 1 ---

Left

Right

(2)

Miter cutting

4-1. Selling Point Descriptions

(1) Press cutting

Table 1

(Unit: mm)

Maker model

Max. cutting

HITACHI

C 10FCD

Workpiece

Width (W)

dimension

69 x 143

(2-23/32" x 5-5/8")

Height x Width

(H x W)

89 x 92

(3-1/2" x 3-5/8") with aux. board width 17 mm (11/16")

Fig. 1

Press cutting with the head swiveling enables cutting square workpieces as large as shown in Table 1 in a single sawing operation. (See Fig. 1)

(2) Miter cutting facility

Table 2

(Unit: mm)

Maker model

Max. cutting

HITACHI

C 10FCD

Width (W)

dimension

Height (H)

Right and left 45

Height x Width

(H x W)

69 x 98

(2-23/32" x 3-7/8")

Workpiece

Right and left 45

Height (H)

Fig. 2

By turning the table to the right or left as desired, the Model C 10FCD is capable of miter cutting of up to 45 to the right and left.

(3) Right and Left bevel cutting facility 1 Advantage of right and left bevel cutting

Window frames

Fig. 4 shows the left bevel cutting by C 10FC2 and Fig. 5 shows the right and left bevel cutting by C 10FCD. The purpose of right and left bevel cutting is to achieve accurate 45 bevel cutting for better miter joint work. Generally, window frames are made by jointing 45 bevel (miter) cut workpieces. (See Fig. 3)

Miter cutting (45 bevel cutting)

Fig. 3

(a) In the case of C 10FC2, miter cutting is performed by the left bevel cutting function only as shown in Fig. 4.

Therefore, the workpiece must be turned around in the second process and the reference plane, that is, the surface of the workpiece which contacts to the fence is opposite to that of the first process.

(b) In the case of C 10FCD, more accurate miter cutting is performed because the same reference plane (surface

of the workpiece which contacts to the fence) is used in both the first and the second processes as shown in Fig. 5. In addition, the working efficiency is improved and long workpieces can be handled in tight places because there is no need to turn around the workpieces.

--- 2 ---

First process

Saw blade

Second process

Reference plane in the second process (surface of the workpiece which contacts to the fence)

Fig. 4 Miter cutting by C 10FC2

Reference plane in the first process (surface of the workpiece which contacts to the fence)

Turn around

Reference plane in the first process

Reference plane in the first process (surface of the workpiece which contacts to the fence)

Second process

Same reference plane as the first process

Fig. 5 Miter cutting by C 10FCD

2 Maximum cutting dimension

Table 3

Maker model

Max. cutting dimension

Right 45

Height x Width

(H x W)

Left 45

Height x Width

(H x W)

Workpieces as wide as shown in Table 3 can be bevel-cut by tilting the saw blade section (head).

HITACHI

C 10FCD

24 x 120

(15/16" x 4-3/4")

45 x 143

(1-25/32" x 5-5/8")

(Unit: mm)

Workpiece

Right 45

Left 45

Fig. 6

Width (W)

Height (H)

--- 3 ---

(4) Compound cutting through use of miter and bevel cutting functions

Max. cutting

Maker model

Table 4

HITACHI

C 10FCD

(Unit: mm)

Width (W)

Height (H)

dimension

(Right)

Right bevel 45

Right/Left miter 45

Height x Width

24 x 85

(15/16" x 3-11/32")

(H x W)

Left bevel 45

Right/Left miter 45

Height x Width

45 x 130

(1-25/32" x 5-1/8")

(H x W)

By turning the table to the right or left and inclining the saw blade section (head) to the right or left, the Model C 10FCD is capable of compound cutting (bevel and miter, see Figs. 7 and 8) of workpieces with the maximum dimensions shown in Table 4.

(5) Fine surface finish on cuts 1 Constant-speed cutting is achieved by minimizing

revolution variation due to changes in load during sawing by means of an electronic control, as in the C 10FCD. As indicated in Fig. 9, revolution variation during sawing is electronically held to a minimum, while providing a higher

(Left)

Workpiece

Rotation speed

(/min)

3800

(Right)

Fig. 7

45 (Left)

Fig. 8

3400

Workpiece

Width (W)

Height (H)

Models without electronic control

3700

HITACHI C 10FCD

rotation speed during sawing than in the competitiors'. With this considerably higher speed during sawing (over

No-load current

Rated current

the normal load range), the amount of material cut per tooth is reduced to ensure a finer quality finish on the cut surface. Uneven cut surfaces at the start of sawing are

Load current (A)

Fig. 9

caused by numerous runouts of the saw blade due to revolution changes dependent on load variation. The electronic control provided in the C 10FCD serves to maintain relatively constant rotation in a range at which run out of the saw blade is minimized, even at the no-load speed. This minimizes surface unevenness during the first part of the cut. Besides the outstanding feature of cutting speed which is independent of load variation over a wider

Table 5

Maker model

Item

No-load sound

presure level 1 m distance fromthe front

[Unit: dB(A)]

HITACHI

C 10FCD

range of operation (for a smooth cut surface with few saw marks), electronic control also offers advantages of eliminating the sharp metallic noise due to resonance of the saw blade as well as noises during no-load operation because the no-load speed is maintained at 3,800 /min. (See Table 5)

--- 4 ---

(6) Minimized reaction during motor start

The C 10FCD uses the soft-start system to suppress sound pressure level when starting and reaction transmitted through the handle. Sound pressure level and reaction when starting are as indicated in Table 6. A normal speed is reached quickly with minimum sound pressure level when starting.

Item

Sound pressure level when starting *

* Sound pressure level when starting: Maximum

value measured at 1 m distance from the front

Table 6

Maker model

[Unit: dB(A)]

HITACHI

C 10FCD

It is readily seen from Table 6 that the electronically controlled soft start is highly effective.

(7) Poly V belt overload protection

C 10FCD utilizes the poly V belt to transmit the rotation of the motor to the saw blade instead of a conventional gear transmission system. This is to reduce noise, however, there is a fear of cutting the poly V belt during overload. To protect the poly V belt, an overload protection circuit is equipped in C 10FCD. The overload protection circuit stops the motor revolution before the motor locks when an excessive or abnormal load is applied to the poly V belt, and so protects the poly V belt.

(8) Equipped with debris guard to restrict dispersion of chips for enhanced safety in operation

A debris guard has been adopted to prevent wood chips from adhering to the saw blade at the end of the cutting operation. The debris guard tilts together with the saw blade during bevel cutting, thereby enhancing safe operation.

(9) Lightweight design

13 kg in weight, for easy transport in a workshop

--- 5 ---

4-2. Electronic Control and Its Functions

(1) Control circuit (block diagram)

Off/On

Load current detecting circuit

Switch

Stator coil

3 Soft start circuit 4 Constant-speed

control circuit

Overload protection circuit

Motor

Fig. 10

Magnet

2 Rotation speed

detector

Phase control circuit

Controller

Phase control element

(2) Functions 1 Phase control circuit

As illustrated Fig. 11, the phase control element (triac) functions to increase or decrease the time (T) of the line voltage waveform in order to control the amount of voltage applied to the motor.

When ' t ' becomes smaller, motor

Voltage

Waveform of voltage applied to motor

rotation speed and torque decrease.

Time

When ' t ' becomes larger, motor rotation speed and torque decrease.

Line voltage waveform (AC)

Fig. 11

When t = T, line voltage (full voltage) is applied.

2 Rotation speed detector

The rotation speed detector detects and monitors the rotation speed of the armature by means of a magnetic sensor (magnet pick-up), incorporated in the controller, which detects flux changes generated by a magnet mounted at the armature shaft.

--- 6 ---

3 Soft-start circuit

When the switch is turned on, the soft start-circuit functions to gradually increase the voltage applied to the motor, thereby gradually increasing motor rotation speed.

Rotation speed

Switch ON

4 Constant speed control circuit

The constant speed control circuit receives signals from the rotation speed detector, and adjusts the amount of voltage applied to the motor to keep the rotation speed of the motor as close as possible to a predetermined value.

5 Overload protection circuit

When an overload sensor detects a motor load current that exceeds the maximum load limit of the polyethylene V-belt, the overload protection circuit generates a command to cut off the power supplied to the motor. This circuit is also effective in preventing the motor and the phase control element from being damaged.

Voltage applied to motor is gradually increased.

Time

Fig. 12

(3) Motor characteristics during electronic control

3,800

(When control is not applied)

As load increases,

Saw blade rotation speed (/min)

voltage applied to motor increases.

Overload protection is activatedNo load

Load current (A)

Voltage applied to motor decreases suddenly, and motor stops.

Current value determined by load current limiter circuit

Fig. 13

--- 7 ---

5. SPECIFICATIONS

0 (Right angle)

Maximum cutting dimensions Height x

Width

(H x W)

Miter right/left 45

Right 45

Bevel

Left 45

Miter right/left 45

Bevel right 45

Miter right/left 45

Bevel left 45

Miter cutting ranges Bevel cutting range

Compound (miter + bevel) cutting ranges

Angle stopper positions Applicable saw blade Power source type and voltage

69 mm (2-23/32") x 143 mm (5-5/8") 89 mm (3-1/2") x 92 mm (3-5/8") [with aux. board width 17 mm (11/16")]

69 mm (2-23/32") x 98 mm (3-7/8")

24 mm (15/16") x 120 mm (4-3/4") 45 mm (1-25/32") x 143 mm (5-5/8")

24 mm (15/16") x 85 mm (3-11/32")

45 mm (1-25/32") x 98 mm (3-7/8")

Right and left 0 --- 45 Right and left 0 --- 45

Miter: Right and left 0 --- 45 , Bevel: Right and left 0 --- 45

Right and left 0 , 15 , 22.5 , 31.6 and 45 255 mm (10") external dia. x 15.9 mm (5/8") bore AC single phase 60 Hz, 115 V

Type of motor Full-load current No-load rotation speed Max. output

Main body dimensions (Width x Depth x Height)

Weight Coating Packaging

Cord

Standard accessories

AC single phase commutator motor 115 V --- 13 A 3,800 /min 1,600 W 500 mm x 625 mm x 605 mm

(19-11/16" x 24-5/8" x 23-13/16") 13 kg (28.7 lbs) Gross weight 16 kg (35.3 lbs)

Metallic silver green Corrugated cardboard box

Type: 2-Conductor cabtire cable Norminal cross-sectional area: 1.25 mm Length: 2 m (6.6 ft) External dia: 8 mm with mold plug

255 mm (10") TCT saw blade (24 teeth, Code No. 790004)

••••••••••••

for wood and aluminum cutting

Dust bag Vise ass'y Extension stay Machine screw M5 Wrench

Optional accessories

Holder ass'y (Code No. 317542) Vise ass'y (Code No. 317541) 255 mm (10") TCT saw blade (70 teeth, Code No. 976473)

••••••••••••

for normal cutting

--- 8 ---

6. COMPARISONS WITH SIMILAR PRODUCTS

Maker/Model

Item

HITACHI

C 10FCD

HITACHI C 10FC2

0 (Right angle)

Max. cutting

Miter

Right/

left 45 dimensions Height x Width (H x W)

Right

Bevel

Left 45

Miter right/left 45

Bevel right 45

Miter right/left 45

Bevel left 45

Miter cutting ranges

69 mm x 143 mm

(2-23/32" x 5-5/8")

89 mm x 92 mm

(3-1/2" x 3-5/8") [with aux. board width 17 mm (11/16")]

69 mm x 98 mm

(2-23/32" x 3-7/8")

24 mm x 120 mm

(15/16" x 4-3/4")

45 mm x 143 mm

(1-25/32" x 5-5/8")

24 mm x 85 mm

(15/16" x 3-11/32")

45 mm x 98 mm

(1-25/32" x 3-7/8")

Right and left

0 --- 45

67 mm x 146 mm

(2-5/8" x 5-3/4")

89 mm x 92 mm

(3-1/2" x 3-5/8") [with aux. board width 17 mm (11/16")]

70 mm x 89 mm

(2-3/4" x 3-1/2")

Right 60

70 mm x 73 mm

(2-3/4" x 2-7/8")

---

44 mm x 130 mm

(1-3/4" x 5-1/8")

--- --- ---

44 mm x 89 mm

(1-3/4" x 3-1/2")

Right 0 --- 60 Left 0 --- 45

70 mm x 146 mm

(2-3/4" x 5-3/4")

70 mm x 105 mm

(2-3/4" x 4-1/8")

---

44 mm x 146 mm

(1-3/4" x 5-3/4")

44 mm x 105 mm

(1-3/4" x 4-1/8")

Right and left

0 --- 45

69 mm x 130 mm

(2-3/4" x 5-1/8")

69 mm x 92 mm

(2-3/4" x 3-5/8")

---

35 mm x 130 mm

(1-3/8" x 5-1/8")

35 mm x 92 mm

(1-3/8" x 3-5/8")

Right 0 --- 52 Left 0 --- 45

Bevel cutting ranges

Compound (miter + bevel) cutting ranges

Miter: Right and left Bevel: Right and left

Right and left 0 ,

Angle stopper position

15 , 22.5 , 31.6 and 45

Saw blade outer diameter (mm)

Full-load current (A) No-load revolution (/min)

Max. output (W)

Soft-start

Motor

Speed control

(electronic control)

Right and left

0 --- 45

0 --- 45 0 --- 45

255 (10")

115 V --- 13A

3,800 1,600

Provided

Left 0 --- 45

Miter: Right and left

0 --- 45

Bevel: Left

0 --- 45

Right and left 0 , 15 , 22.5 , 31.6

and 45 Right 60

255 (10")

115 V --- 15 A

4,900 2,200

Left 0 --- 45

Miter: Right and left

0 --- 45

Bevel: Left

0 --- 45

Right and left 0 , 15 , 22.5 , 30 and

255 (10")

115 V --- 15 A

4,900

---

Left 0 --- 45

Miter: Right and left

0 --- 45

Bevel: Left

0 --- 45

Right and left 0 , 15 , 22.5 , 30 and

45 Right 52

255 (10")

115 V --- 15 A

4,600

---

Poly V belt overload protector

Saw blade drive system Insulation structure

Provided

(electronic control)

Poly V belt and gear

Double insulation

Gear

Double insulation

--- 9 ---

Gear

Double insulation

Gear

Double insulation

Maker/Model

Item

Base size width x depth (mm)

HITACHI

C 10FCD

500 x 120

(19-11/16" x 4-3/4")

HITACHI C 10FC2

525 x 150

(20-1 1/16" x 5-29/32")

455 x 125

(17-15/16" x 4-15/16")

460 x 135

(18-3/32" x 5-5/16")

Debris guard

Dust bag size (mm)

Main unit dimensions (Width x Depth x Height) (mm)

Standard accessories

Optional accessories

Provided

300 x 190

(11-13/16" x 7-15/32")

500 x 625 x 605

(19-11/16" x 24-5/8"

x 23-13/16")

13 (28.7 lbs)Product weight (kg)

TCT saw blade

(24 teeth) Dustbag Vise ass'y Extension Stay 5 mm Machine

Screw

Wrench Holder ass'y

Vise ass'y 255 mm TCT saw

blade (70 teeth) for normal cutting

Provided

300 x 190

(11-13/16" x 7-15/32")

535 x 600 x 489

(21-1/16" x 23-1/2"

x 19-1/4")

14.5 (32 lbs)

TCT saw blade

(24 teeth) Dustbag Vise ass'y Wrench

Holder ass'y 255 mm TCT saw

blade (70 teeth) for normal cutting

320 x 190

(12-19/32" x 7-15/32")

455 x 595 x 535

(17-29/32" x

23-13/32" x 21")

22 (49 lbs)

Combination saw

blade (104 teeth) Dustbag Vise ass'y

(Horizontal) Holder ass'y Wrench

300 x 150

(11-13/16" x 5-15/16")

476 x 530 x 532

(18-3/4" x 20-7/8" x

20-15/16")

11 (24.2 lbs)

TCT saw blade Dustbag Auxiliary plate 13 mm Socket

wrench Wrench Triangular rule

Safety goggles

--- 10 ---

+ 30 hidden pages

HITACHI C 10FCD TECHNICAL DATA AND SERVICE MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual