Hitachi CJ 90VST Handling Instructions Manual page 21

NOTE
Confi rm the protrusions of blade inserted to
○
the blade holder surely. (Fig. 2)
Confi rm the blade located between the
○
groove of roller. (Fig. 3)
6. Adjusting the blade operating speed
This Jig Saw is equipped with the electric
control circuit which enables stepless speed
control. To adjust the speed, turn the dial
shown in Fig. 4. When the dial is set to "1", the
jig saw operates at the minimum speed
(850 /min). When the dial is set to "5", the jig
saw operates at the maximum speed
(3000 /min). Adjust the speed according to the
material to be cut and working effi ciency.
CAUTION
At low speed (dial setting: 1 or 2) do not
cut a wood with a thickness of more than
10 mm or metal with a thickness of more
than 1 mm.
7. 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. 5
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.
8. 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.
9. Splinter guard
Using the splinter guard when cutting wood
materials will reduce splintering of cut surfaces.
Insert the splinter guard in the space on the
base, and push it completely. (See Fig. 6)
Blade holder
Roller
Dial
Change knob
Splinter guard
21
English
Blade
Fig. 2
Roller
Blade Blade
Fig. 3
Fig. 4
Fig. 5
Base
Fig. 6