Mounting And Dismounting The Saw Blade; Replacing Light Bulb - Hitachi C 7D Handling Instructions Manual

(3) Moving the saw straight at a constant speed will
produce optimum cutting.
CAUTION:
Before starting to saw, ensure that the saw blade
has reached full speed revolution.
Should the saw blade be stopped or made an
abnormal noise during operation, turn off the switch
immediately.
When finished with a job, pull out the battery from
the main body.
Twisting and forcibly pressing the saw during cutting
can result in unreasonable pressure on the motor,
so try to go straight quietly.
In the situation where the circular saw is continuously
operated while replacing the battery with stocked
spare batteries one after another, the motor tends
to overheat. Therefore, whenever the housing
becomes hot, give the saw a break for a while.
Avoid cutting operation in a state where the base
bottom is afloat from the material being cut.
Otherwise, the motor can get locked.
MOUNTING AND DISMOUNTING THE SAW
BLADE
CAUTION:
To avoid serious accident, ensure the switch is in
the OFF position, and pull out the battery.
1. Dismounting the saw blade
(1) Set the cutting volume at maximum, and place the
Circular Saw as shown in Fig. 17.
(2) Depress the lock lever, lock the spindle, and remove
the hexagonal flange bolt and washer (B) with the
box wrench.
(3) While holding the safety cover lever to keep the
safety cover fully retracted into the saw cover,
remove the saw blade. (Fig. 18)
Tighten
Lock Lever
Box Wrench
Loosen
Fig. 17
Saw Blade
Safety Cover Lever
2. Mounting the Saw Blade (Fig. 19)
CAUTION:
If the bolt is worked using other tools than the
provided box wrench, excessive tightening and
insufficient tightening may take place, resulting in
injury.
(1) Thoroughly remove any sawdust which has
accumulated on the spindle, bolt and washers.
(2) For mounting saw blade, the concave sides of both
washers (A) and (B) must be fitted to the saw blade
sides. Mount the saw blade on the spindle, and
finally affix washer (B). (Fig. 19)
(3) To assure proper rotation direction of the saw blade,
the arrow direction on the saw blade must coincide
with the arrow direction on the saw cover.
(4) Using the fingers, tighten the hexagonal flange bolt
retaining the saw blade as much as possible. Then
depress the lock lever, lock the spindle, and
thoroughly tighten the hexagonal flange bolt.
CAUTION:
After mounting the saw blade, reconfirm that the
lock lever is firmly secured in the prescribed position.
Washer (B)
Hexagonal
Flange Bolt

REPLACING LIGHT BULB

CAUTION:
Make absolutely sure that the battery is removed
from the main body before replacing the light bulb.
Immediately after the light is turned OFF, the bulb
retains high temperature. Make sure to cool down
Safety
Saw Cover
Fig. 18
Saw Blade
Washer (A)
Fig. 19
Cover
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