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CR13VBY
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Hitachi CR13VBY [8/62] English

English

(5) Pull the back of the saw blade two or three times

by hand and 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. (Fig. 6)

CAUTION

When pulling the saw blade, be absolutely sure to

pull it from the back. Pulling other parts of the blade

will result in an injury.

6. Dismounting the blade

(1) Turn on and off the switching trigger several times

so that the lever can jump out of the front cover

completely. Thereafter, turn off the switch and

unplug the power cord. (Fig. 1)

CAUTION

Be absolutely sure to keep the switch turned off

and the power cord unplugged to prevent any

accident.

(2) After you have pushed the lever in the direction

of the arrow mark shown in Fig. 2, turn the blade

so it faces downward. The blade should fall out by

itself. If the blade doesn’t fall out, pull it out by

hand.

CAUTION

Never touch the saw blade immediately after use.

The metal is hot and can easily burn your skin.

WHEN THE BLADE IS BROKEN

Even when the saw blade is broken and remains

inside the small slit of the plunger, it should fall

out if you push the lever in the direction of the

arrow mark, and face the blade downward. If it

doesn’t fall out itself, take it out using the procedures

explained below.

(1) If a part of the broken saw blade is sticking out

of the small slit of the plunger, pull out the protruding

part and take the blade out.

(2) If the broken saw blade is hidden inside the small

slit, hook the broken blade using a tip of another

saw blade and take it out. (Fig. 7)

MAINTENANCE AND INSPECTION OF SAW BLADE

MOUNT

(1) After use, blow away sawdust, earth, sand, moisture,

etc., with air or brush them away with a brush, etc.,

to ensure that the blade mount can function

smoothly.

(2) As shown in Fig. 8, carry out lubrication around the

blade holder on a periodic basis by use of cutting

fluid, etc.

NOTE:

Continued use of the tool without cleaning and

lubricating the area where the saw blade is installed

can result in some slack movement of the lever due

to accumulated sawdust and chips. Under the

circumstances, pull a rubber cap provided on the

lever in the direction of an arrow mark as shown

in Fig. 9 and remove the rubber cap from the lever.

Then, clean up the inside of the blade holder with

air and the like and carry out sufficient lubrication.

The rubber cap can be fitted on if it is pressed firmly

onto the lever. At this time, make certain that there

exists no clearance between the blade holder and

the rubber cap, and furthermore ensure that the

saw-blade-installed area can function smoothly.

CAUTION:

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

hole. Otherwise, the saw blade can come off,

resulting in personal injury. (Fig. 10)

7. Adjusting the base

This unit employs a mechanism that can adjust the

base mounting position in three stages without the

use of a wrench or other tools.

(1) Press a pushbutton. When you do this, a base lever

will jump out to prepare the base for adjustment.

(Fig. 11)

(2) Push up the base tip and jog the base back and

forth. (Fig. 12)

(3) You can adjust the base position in three stages.

Move the base at an interval of about 15 mm, find

the position where the base hooks, and press in

the base lever with your fingers. The base is secured

when you hear the clicking sound. (Fig. 13)

8. Adjusting the blade reciprocating speed

This unit has a built-in electronic control circuit that

makes it possible to adjust the variable speed of

the saw blade either both by pulling a switching

trigger or turning a dial. (Fig. 14)

(1) If you pull the trigger further in, the speed of the

blade accelerates. Begin cutting at a low speed to

ensure the accuracy of your target cut position.

Once you’ve obtained a sufficient cutting depth,

increase the cutting speed.

(2) On the dial scale, “5” is the maximum speed and

“1” the minimum. The high speed is generally

suitable for soft materials such as wood, and the

low speed is suitable for hard materials such as

metal. We recommend that you use the following

as a rough guide in selecting the suitable speed

for the materials you are cutting.

CAUTION

䡬 When cutting at low speed (scale of 1 – 2), never

cut a wooden board more than 10 mm thick or a

mild steel plate more than 2 mm thick. The load

on the motor can result in overheating and damage.

䡬 Although this unit employs a powerful motor,

prolonged use at a low speed will increase the load

unduly and may lead to overheating. Properly adjust

the saw blade to allow steady, smooth cutting

operation, avoiding any unreasonable use such as

sudden stops during cutting operation.

Example of materials Recommended

to be cut dial scale

Mild steel pipes /

cast-iron tubes / 2 – 4

L-shaped angle steel

Wood / wood with nails

driven in

Stainless steel 1 – 3

Aluminum / brass / copper 2 – 4

Plaster board 4 – 5

Plastic / fiber board 1 – 3

Hitachi CR13VBY [8/62] English

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