Hitachi C 5YA User manual

Brand: Hitachi

Model: C 5YA

Category: Power tools

Type: User manual

This manual is also suitable for

C5YA

DUSTLESS CIRCULAR SAW

MODEL C 5YA

HANDLING INSTRUCTIONS

Note:

Before using this Power Tool, carefully read through these HANDLING

INSTRUCTIONS to ensure efficient, safe operation. It is recommended that

these INSTRUCTIONS be kept readily available as an important reference

when using this power tool.

GENERAL OPERATIONAL PRECAUTIONS

WARNING! When using electric tools, basic safety

precautions should always be followed to reduce the

risk of fire, electric shock and personal injury, including

the following.

Read all these instructions before operating this

product and save these instructions.

For safe operations:

1. Keep work area clean. Cluttered areas and benches

invite injuries.

2. Consider work area environment. Do not expose

power tools to rain. Do not use power tools in

damp or wet locations. Keep work area well lit.

Do not use power tools where there is risk to

cause fire or explosion.

3. Guard against electric shock. Avoid body contact

with earthed or grounded surfaces. (e.g. pipes,

radiators, ranges, refrigerators).

4. Keep children away. Do not let visitors touch the

tool or extension cord. All visitors should be kept

away from work area.

5. Store idle tools. When not in use, tools should

be stored in a dry, high or locked up place, out

of reach of children.

6. Do not force the tool. It will do the job better and

safer at the rate for which it was intended.

7. Use the right tool. Do not force small tools or

attachments to do the job of a heavy duty tool.

Do not use tools for purposes not intended; for

example, do not use circular saw to cut tree limbs

or logs.

8. Dress properly. Do not wear loose clothing or

jewelry, they can be caught in moving parts.

Rubber gloves and non-skid footwears are

recommended when working outdoors. Wear

protecting hair covering to contain long hair.

9. Use eye protection. Also use face or dust mask

if the cutting operation is dusty.

10. Connect dust extraction equipment.

If devices are provided for the connection of dust

extraction and collection facilities ensure these are

connected and properly used.

11. Do not abuse the cord. Never carry the tool by

the cord or yank it to disconnect it from the

receptacle. Keep the cord away from heat, oil and

sharp edges.

12. Secure work. Use clamps or a vise to hold the

work. It is safer than using your hand and it frees

both hands to operate tool.

13. Do not overreach. Keep proper footing and balance

at all times.

14. Maintain tools with care. Keep cutting tools sharp

and clean for better and safer performance. Follow

instructions for lubrication and changing

accessories. Inspect tool cords periodically and if

damaged, have it repaired by authorized service

center. Inspect extension cords periodically and

replace, if damaged. Keep handles dry, clean, and

free from oil and grease.

15. Disconnect tools. When not in use, before servicing,

and when changing accessories such as blades,

bits and cutters.

16. Remove adjusting keys and wrenches. Form the

habit of checking to see that keys and adjusting

wrenches are removed from the tool before turning

it on.

17. Avoid unintentional starting. Do not carry a

plugged-in tool with a finger on the switch. Ensure

switch is off when plugging in.

18. Use outdoor extension leads. When tool is used

outdoors, use only extension cords intended for

outdoor use.

19. Stay alert. Watch what you are doing. Use common

sense. Do not operate tool when you are tired.

20. Check damaged parts. Before further use of the

tool, a guard or other part that is damaged should

be carefully checked to determine that it will

operate properly and perform its intended function.

Check for alignment of moving parts, free running

of moving parts, breakage of parts, mounting and

any other conditions that may affect its operation.

A guard or other part that is damaged should be

properly repaired or replaced by an authorized

service center unless otherwise indicated in this

handling instructions. Have defective switches

replaced by an authorized service center. Do not

use the tool if the switch does not turn it on and

off.

21. Warning

The use of any accessory or attachment, other

than those recommended in this handling

instructions, may present a risk of personal injury.

22. Have your tool repaired by a qualified person.

This electric tool is in accordance with the relevant

safety requirements. Repairs should only be carried

out by qualified persons using original spare parts.

Otherwise this may result in considerable danger

to the user.

PRECAUTIONS ON USING CIRCULAR SAW

1. Do not use saw blades which are deformed or

cracked.

2. Do not use saw blades made of high speed steel.

3. Do not use saw blades which do not comply with

the characteristics specified in these instructions.

4. Do not stop the saw blades by lateral pressure

on the side surface of disc.

5. Always keep the saw blade sharp.

6. Ensure that the safety cover moves smoothly and

freely.

7. Never use the circular saw with its safety cover

fixed in the open position.

8. Ensure that the retraction mechanism of the guard

system operates accurately.

9. Never operate the circular saw with grasping the

saw blade upside down or to the lateral direction.

10. Ensure that the material is free of foreign matters

such as nails.

11. For model C5YA, the saw blade’s diameters which

can be mounted are 125 mm or less.

12. Be careful of brake kickbac.

This circular saw incorporates an electric brake

that functions when the switch is released. As

there is some kickback when the brake functions,

be sure to hold the main body securely.

STANDARD ACCESSORIES

(1) Box wrench ............................................................... 1

(2) Guide .......................................................................... 1

Standard accessories are subject to change without

notice.

OPTIONAL ACCESSORIES (sold separately)

(1) Diamond wheel (Dia. 106 mm) for the fiber cement

boards.

(2) Carbide Tipped Saw Blade (Dia. 125 mm) for the

gypsum board.

(3) Rubber Adapter (Fig. 15)

Optional accessories are subject to change without

notice.

APPLICATION

(1) Cutting the hard boards types T9 and T7.

(ex. harditex, hardiflex, etc.)

(2) Cutting the gypsum board.

PRIOR TO OPERATION

1. Power source

Ensure that the power source to be utilized conforms

to the power requirements specified on the product

nameplate.

2. Power switch

Ensure that the power switch is in the OFF position.

If the plug is connected to a receptacle while the

power switch is in the ON position, the power tool

will start operating immediately, which could cause

a serious accident.

3. Extension cord

When the work area is removed from the power

source, use an extension cord of sufficient thickness

and rated capacity. The extension cord should be

kept as short as practicable.

4. Prepare a wooden workbench (Fig. 1)

Since the saw blade will extend beyond the lower

surface of the lumber, place the lumber on the

workbench prior to cutting. If a square block is

utilized as the workbench, adjust leveling to ensure

that it is properly stabilized. An unstable workbench

will result in hazardous operation.

CAUTION:

● To avoid possible accident, remains always ensure

that the portion of workpiece after cutting is securely

anchored or held in position.

Fig. 1

ADJUSTING THE SAW PRIOR TO USE

1. Adjusting the cutting depth

As shown in Fig. 2, hold the handle with one hand

while loosening the lever with the another hand.

The cutting depth can be adjusted by swiveling the

base to the dasired position. In such manner adjust

the cutting depth and then securely tighten the

lever.

Fig. 2

SPECIFICATIONS

Model C5YA

Voltage 230 V

Cutting Depth 37 mm Max.

Power Input 1000 W

Capacity 125 mm Max.

Full Load Amp. 4.6 A

Dimensions (Length

Heigth

Width) 284 mm

208 mm

320 mm

No Load Speed 5000/min

Weight (without cord) 3.1 Kg

Workpiece

Base

Workbench

Saw Blade

Lever

Handle

Base

2. Aligning the position of the saw blade

(1) Align the position of the cutting edge of the blade

using the standard line on forward edge of the table

insert portion of the base plate (See Fig. 3(A)).

(2) Position the slide plate on the sighting line, using

your fingers. (See Fig. 3(B)).

Fig. 3(A)

Fig. 3(B)

3. Regulating the guide (Fig. 4)

The cutting position can be regulated by moving

the guide to the left or right after loosening its

wing-bolt. The guide may be mounted on either the

right or left side of the base.

Fig. 4

CUTTING PROCEDURES

1. Place the base on the workpiece, then align the

premarked line and the sawblade with the guide

slot at the front of the base. (Fig. 5)

Fig. 5

2. Ensure that the switch is turned ON position before

the saw blade comes in contact with the workpiece.

The switch is turned ON when the trigger is pulled;

and OFF when the trigger is released.

3. Moving the saw straight with brisk speed will resultin

optimum cutting.

CAUTION:

● Before starting to saw, ensure that the saw blade

has reached full speed revolution.

● Should the saw blade be stopped or made an

abnormal noise during operation, turn off the switch

immediately.

● Always be alert for the power cord not to contact

the revolving saw blade.

● It should be used to cut a workpiece of Hard Board

at one cut, and do not cut workpieces piled up.

● It should be always connected to vacuum cleaner

when cutting Hard Boards.

MOUNTING AND DISMOUNTING THE DUST

BOX

CAUTION:

● To avoid serious accident, the switch is in the OFF

position and disconnect the plug from the receptacle.

1. Mounting the dust box:

(1) Loosen the lever and set cutting depth at minimum

and then tighten the lever as shown Fig. 8(A).

(2) Align the gear cover catch with the setting mark

(triangle mark) on the inset part of the dust box.

(See Fig. 6).

Fig. 6

Slide plate

Wing bolt

Base

Guide

Workpiece

Premarked

line

Guide slot

Dust box

Gear cover

Setting mark

(Triangle mark)

Slide plate

Table insert portion

Base

Standard line

Bevel plate

(3) Pull the dust box in the direction indicated by arrow

“A”. (See Fig. 7)

Fig. 7

(4) Lifting the dust box slightly, push it in the direction

indicated by arrow “B” (See Fig. 7). Push the dust

box into position so that it aligns with the edge

of the gear cover (See Fig. 8(A)).

Fig. 8(A)

(5) Fasten the dust box into position by tightening the

M6 screw. (See Fig. 8(B)).

Fig. 8(B)

NOTE:

● Moving the inset hooking part of the dust box in

any other position than shown by the arrow as

indicated above may bend or damage it.

CAUTION:

● Be sure to check whether the gear cover and the

dust box are fixed firmly in place before using the

tool.

2. Dismounting the dust box

Loosen the lever and set the base at minimum

cutting depth and dismount the dust box by going

through the steps for mounting in reverse order.

MOUNTING AND DISMOUNTING THE SAW

BLADE

CAUTION:

● To avoid serious accident, ensure the switch is in

OFF position and disconnect the plug from the

receptacle.

1. Mounting the saw blade:

(1) Loosen the lever and set cutting depth at minimum

and then tighten the lever as shown Fig. 2.

(2) Loosen the M6 screw and dismount the dust box

from gear cover. (Fig. 8(B), Fig. 7)

(3) Depress the lock lever and lock the spindle, and

remove the hexagonal head bolt with the provided

box wrench. (Fig. 9)

Then remove Washer(B). (Fig. 10)

Fig. 9

Fig. 10

NOTE:

● Thoroughly remove any sawdust which has

accumulated on the spindle, bolt and washers.

Gear cover

Lever

Dust box

Lever

Gear cover

Dust box

Base

Gear cover

Dust box

M6 Screw

Box

wrench

Lock lever

Hexagonal

head bolt

Saw blade

ø19

Washer (B)

Spindle

Recessed portion

Washer (A)

ø20

(4) Put the provided collar into washer (A).

(5) Align the beveled part of the spindle parallel with

the guide line on the safety cover.

(6) Position the side of washer (A) with the 2 mm hole

(0.3 mm) so that it is toward the saw blade. Put

the concave side of washer (B) toward the saw

blade. (See Fig. 10).

(7) Place the saw blade inside the safety cover and the

slide cover. If the saw blade gets caught on the

safety cover while doing this, move it left or right

until it is positioned properly inside the covers. (See

Fig. 11).

Fig. 11

NOTE:

● In case the hole diameter of your saw blade does

not correspond to that of Washer (A), please contact

the shop where you purchased the Circular Saw.

(8) To assure proper rotation direction of the saw blade,

the arrow direction "C" on the gear cover must

correspond to saw blade rotating direction. (Fig. 11)

(9) Tighten the hexagonal head bolt retaining the saw

blade properly by hand. Then depress the lock

lever, lock the spindle, and thoroughly tighten the

bolt.

(

) Attach the dust box and tighten the M6 screw

firmly.

2. Dismounting the saw blade:

To dismount the blade carry out the mounting steps

described above in reverse order.

CAUTION

After the saw blade have been attached, confirm

that the lock lever is properly secured in the

prescribed position.

DISCARDING CUTTING DUST

CAUTION:

● To avoid serious accident, the switch is in the OFF

position and disconnect the plug from the receptacle.

1. Discarding the cutting dust.

CAUTION:

● Depending on the type of material being cut, the

newly generated cutting dust may be very hot. Be

careful not to touch the cutting dust directly with

your hands.

NOTE:

If too much dust collects in the dust box, the ability

of the tool to collect the dust will drop. Always

empty the dust box before it gets full.

(1) Push on the hook which located in the rear of the

dust box. Open the dust cover and empty out the

cutting dust. (See Fig. 12 and Fig. 13).

Fig. 12

Fig. 13

(2) After you have emptied out the cutting dust, close

the dust cover and put the hook in place.

NOTE:

● Handle the dust box with care. Pounding on the

dust box may damage it.

● When you throw away the cutting dust, make sure

that no dust gets into the part of the tool where

the motor is located.

USING A DUST COLLECTOR

CAUTION:

To avoid serious accident, the switch is in the OFF

position and disconnect the plug from the receptacle.

1. When you attach a dust collector (such as Model

RP30SA, etc.), carefully follow the steps indicated

below:

(1) Remove the rubber cap.

(2) Push the end of the dust collector hose firmly into

the rubber adapter and then insert the rubber adapter

into the hose fitting opening. (See Fig. 14).

Saw blade

Gear cover

Dust cover

Dust box

Hook

Dust cover

Hook

Fig. 14

MAINTENANCE AND INSPECTION

1. Inspecting the saw blade:

Since use of a dull saw blade will degrade efficiency

and cause possible motor malfunction. Resharpen

and replace the saw blade as soon as abrasion is

noted.

2. Inspecting the mounting screws:

Regularly inspect all mounting screws and ensure

that they are properly tightened. Should any of the

screws be loose, retighten them immediately. Failure

to do so could result in serious hazard.

3. Inspecting the carbon brushes (Fig. 15)

The motor employs carbon brushes which are

consumable parts. Since en excessively worn carbon

brush can result in motor trouble, replace the carbon

brushes with new ones having the same carbon

brush No. shown in the figure when they become

worn to or near the “wear limit”. In addition, always

keep carbon brushes clean and ensure that they

slide freely within the brush holders.

Fig. 15

CAUTION

● When replacing the new carbon brushes, always

use genuine Hitachi carbon brushes with the number

(43) specified in Fig. 15.

4. Replacing carbon brushes:

Disassemble the brush caps with a slotted-head

screwdriver. The carbon brushes can then be easily

removed.

5. Maintenance of the motor:

The motor unit winding is the very “heart” of the

power tool.

Exercise due care to ensure the winding does not

become damaged and/or wet with oil or water.

6. Adjusting the base and saw blade to maintain

perpendicularity

The angle between the base and the saw blade has

been adjusted to 90°, however should this

perpendicularity be lost for some reason, adjust in

the following manner:

(1) Placing a square against the base of the tool,

determine the angle desired and lightly tighten the

M4 screw. (See Fig. 16).

(2) Turn the angle adjustment screw until the end of

the screw touches the bevel plate. (See Fig. 4)

(3) After all adjustments have been made, firmly tighten

the M4 screw.

Fig. 16

NOTE

Due to HITACHI’s continuing program of research and

development, the specifications herein are subject to

change without prior notice.

Dust box

Dust cover

Hose fitting opening

Rubber

adapter

Rubber cap

M4 screw

17mm

6mm

Wear limit

No. of carbon brush

Slotted set

screw

Square

Base

M4 screw

909

Code No. C99067611 N

Printed in Japan

Hitachi C 5YA User manual

Brand: Hitachi

Model: C 5YA

Category: Power tools

Type: User manual

This manual is also suitable for

C5YA

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Hitachi C 5YA User manual

This manual is also suitable for

Hitachi C 5YA User manual

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