Hitachi CJ 90VST User Manual

9

Fig. 2

Blade

Blade 

holder

Lever

Fig. 4

Blade

Blade

Roller

Roller

Fig. 3

Blade

Blade holder

Fig.5

Dial

Fig. 6

Change 

knob

6. Changing blades

(1)  Pull the lever up to the stop. (Fig. 2-I)

(2) Remove fi tted blade

(3)  Insert new blade up to the stop in the balde holder. 

(Fig. 2-II)

(4)  Release the lever. (Fig. 2-III)

○ Confi rm the protrusions of blade inserted to the 

blade holder surely. (Fig. 3)

○ Confi rm the blade located between the groove of 

roller. (Fig. 4)

7.  Adjusting the blade operating speed

  The jig saw is equipped with the electric control 

circuit which enables stepless  speed control. To 

adjust the speed, turn the dial shown in Fig. 5. 

When the dial is set to “1”, the jig saw operates at 

the minimum speed (850 /min.). When the dial set 

to “5”, the jig saw operates at the maximum speed 

(3,000/min.). Adjust the speed according to the 

material to be cut and working effi  ciency.

8.  Adjusting the orbital operation

(1)  This Jig Saw employs orbital operation which 

moves the blade back and forth, as well as up 

and down. Set the change knob shown in Fig. 6 

to “0” to eliminate the orbital operation (the blade 

moves only up and down). The orbital operation 

can be selected in 4 steps from “0” to “III”.

(2) For the hard material, such as a steel plate, 

etc., decrease the orbital operation. For the soft 

material, such as lumber, plastic, etc., increase 

the orbital operation to increase work effi  ciency. 

To cut the material accurately, decrease the 

orbital operation.

9.  Cutting stainless steel plates

  This Jig Saw can cut stainless steel plates by 

using No. 97 blade. Carefully read “Concerning 

cutting of stainless steel plates” for proper 

operation.

000Book_CJ90VST_US.indb   9

000Book_CJ90VST_US.indb   9

2010/08/03   16:02:22

2010/08/03   16:02:22