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C12LCH
Инструкция по эксплуатации Страница: 20

Hitachi C12LCH [20/98] English

English

WARNING

When mounting the saw blade, confirm that the

rotation indicator mark on the saw blade and the

rotation direction of the gear case (see Fig. 1) are

properly matched.

(6) Thoroughly clean washer (D) and the bolt, and install

them onto the saw blade spindle.

(7) Press in the spindle lock and tighten the bolt by turning

it to the left by standard accessories wrench(17 mm

box wrench) as indicated in Fig. 31.

CAUTION

䡬 Confirm that the spindle lock has returned to the

retract position after installing or removing the saw

blade.

䡬 Tighten the bolt so it does not come loose during

operation.

Confirm that the bolt has been properly tightened

before the power tool is started.

2. Dismounting the saw blade

Dismount the saw blade by reversing the mounting

procedures described in paragraph 1 above.

The saw blade can easily be removed after lifting the

lower guard.

CAUTION

䡬 Never attempt to install saw blades except

290 mm – 305 mm in diameter.

MAINTENANCE AND INSPECTION

WARNING

To avoid an accident or personal injury, always

confirm the trigger switch is turned OFF and that the

power plug has been disconnected from the

receptacle before performing any maintenance or

inspection of this tool.

1. Inspecting the saw blade

Always replace the saw blade immediately upon the

first sign of deterioration or damage.

A damaged saw blade can cause personal injury and

a worn saw blade can cause ineffective operation and

possible overload to the motor.

CAUTION

䡬 Never use a dull saw blade. When a saw blade is dull,

its resistance to the hand pressure applied by the tool

handle tends to increase, making it unsafe to operate

the power tool.

2. Inspecting the lever (Fig. 33 and Fig. 34)

If the M8 hexagonal head bolts (2) are loose, align the

sides of the fence and saw blade with the steel square.

After adjusting the saw blade and fence to a ninety-

degree angle, tighten the lever securing hexagonal

head bolts (2).

3. Inspecting the carbon brushes (Fig. 35 and Fig. 36)

The carbon brushes in the motor are expendable parts.

If the carbon brushes become excessively worn, motor

trouble might occur.

Therefore, inspect the carbon brushes periodically and

replace them when they have become worn to the

wear limit line as shown in Fig. 35.

Also, keep the carbon brushes clean so that they will

slide smoothly within the brush holders.

The carbon brushes can easily be removed after

removal of the brush caps (see Fig. 36) with a slotted

(minus) screwdriver.

4. About Handling the Motor (see Fig. 1)

Winding of the motor is said to be the heart of this

tool. Exercise utmost caution not to damage the

winding by exposing it to wash oil or water.

NOTE

䡬 Accumulation of dust and the like inside the motor

can result in a malfunction.

After using the motor for 50 hours or so, carry out no-

load running, and blow in the dry air from a wind hole

at the motor's rear. Such action is effective to

discharge dust and the like.

5. Inspecting the screws

Regularly inspect each component of the power tool

for looseness.

Re-tighten screws on any loose part.

WARNING

䡬 To prevent personal injury, never operate the power

tool if any components are loose.

6. Inspecting the lower guard for proper operation

Before each use of the tool, test the lower guard (see

Fig. 7) to assure that it is in good condition and that it

moves smoothly.

Never use the tool unless the lower guard operates

properly and it is in good mechanical condition.

7. Storage

After operation of the tool has been completed, check

that the following has been performed:

(1) Trigger switch is in OFF position,

(2) Power plug has been removed from the receptacle,

(3) When the tool is not in use, keep it stored in a dry

place out of the reach of children.

8. Lubrication

Lubricate the following sliding surfaces once a month

to keep the power tool in good operating condition

for a long time (Fig. 1 and Fig. 2).

Use of machine oil is recommended.

Oil supply points:

* Rotary portion of hinge

* Rotary portion of vise assembly

9. Cleaning

Periodically remove chips, dust and other waste

material from the surface of the power tool, especially

from the inside of the lower guard with a damp, soapy

cloth. To avoid a malfunction of the motor, protect it

from contact with oil or water.

(Only Model C12LCH/C12FCH)

If the laser line becomes invisible due to chips and the

like adhered onto the window of the laser marker's light-

emitting section, wipe and clean the window with a dry

cloth or a soft cloth moistened with soapy water, etc.

10. Service parts list

A : Item No.

B : Code No.

C : No. Used

D : Remarks

CAUTION

Repair, modification and inspection of Hitachi Power

Tools must be carried out by a Hitachi Authorized

Service Center.

Especially laser device should be maintained by the

authorised agent by laser manufacturer.

Always assign the repair of laser device to Hitachi

Authorised Service Center.

This Parts List will be helpful if presented with the

tool to the Hitachi Authorized Service Center when

requesting repair or other maintenance.

Hitachi C12LCH [20/98] English

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