InFocus CR 18DMR Cordless Saw User Manual

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2. Selection of BI-METAL blades

The BI-METAL blade numbers in Table 7 are

described on the packages of special accessories.

Select appropriate blades by referring to Table 7

and 8 below.

Table 7: Bl-METAL blades

NOTE

Nos. 101 – No. 132 Bl-METAL blades are sold

separately as optional accessories.

3. Selection of blades for other materials

Table 8

MAINTENANCE AND INSPECTION

CAUTION

Be sure to turned off the switch and remove the

battery before maintenance and inspection.

1. Inspecting the blade

Continued use of a dull or damaged blade will

result in reduced cutting efficiency and may cause

overloading of the motor. Replace the blade with

a new one as soon as excessive 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. 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.

4. Inspecting the carbon brushes (Fig. 30)

The motor employs carbon brushes which are

consumable parts. Since and excessively worn

carbon brush can result in motor trouble, replace

the carbon brush with new ones when it becomes

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

keep carbon brushes clean and ensure that they

slide freely within the brush holders.

NOTE

When replacing the carbon brush with a new one,

be sure to use the Hitachi Carbon Brush Code No.

999058.

5. Replacing carbon brushes

Take out the carbon brush by first removing the

brush cap and then hooking the protrusion of the

carbon brush with a flat head screw driver, etc., as

shown in Fig. 32.

When installing the carbon brush, choose the

direction so that the nail of the carbon brush agrees

with the contact portion outside the brush tube.

Then push it in with a finger as illustrated in

Fig. 33. Lastly, install the brush cap.

CAUTION

Be absolutely sure to insert the nail of the carbon

brush into the contact portion outside the brush

tube (You can insert whichever one of the two nails

provided).

Caution must be exercised since any error in this

operation can result in the deformed nail of the carbon

brush and may cause motor trouble at an early stage.

6. Cleaning of the outside

When the Cordless Reciprocating Saw is stained,

wipe with a soft dry cloth or a cloth moistened with

soapy water. Do not use chloric solvents, gasoline

or paint thinner, as they melt plastics.

7. Storage

Store the Cordless Reciprocating Saw in a place in

which the temperature is less than 40°C, and out

of reach of children.

8. Service parts list

A: Item No.

B: Code No.

C: No. Used

D: Remarks

Blade Thickness

No.

Uses

(mm)

No. 101