Hitachi CL 10SA Technical Data And Service Manual page 13

Nut
(4) Precautions in cutter replacement
The cutters must be mounted in the proper directions. Instruct the customers to ensure that the notched
grooves on the side surfaces of the cutters are in a "Yes" and "No" relationship when viewed from the front
end of the main body, as illustrated in Fig. 15. In other words, when the notched groove is present (Yes) on
one cutter, it must not be present (No) on the other. If the two cutters are in "Yes" and Yes" alignment, or "No"
and "No" alignment, the pitch of the threads of the stud will not match the pitch of the threads of the cutters,
as illustrated in Fig.16. In such a case, the cutter blade will be damaged and/or the main body of the
stud cutter will become defective after a short period of operation.
Fig. 15 Cutter replacement method
(5) Never attempt to perform cutting operation at the
If it is necessary to disengage the stud from the cutter during cutting,
depress the trigger switch keeping the forward/reverse changeover pushing
button set to the
the stud can be disengaged. As the motor is locked at the
cutting of a stud cannot be performed. Excessive pressure or twisting force
applied to the main body can seriously damage the tool. Be sure to instruct the
customers never attempt to perform cutting operation setting the forward/reverse
changeover pushing button at the
pushing button is released from the
bracket (A) may not stop immediately because of the switch properties and
it is not faulty. Please instruct the customers about it.
Stud
L-shaped angle
8 mm or more
position. Then the motor rotates in reverse direction and
position. If the forward/reverse changeover
position before turning off the switch,
25
(25 mm L-shaped angle)
Notched groove
"No"
"Yes"
"No"
"Yes"
position.
position,
--- 10 ---
(30 mm L-shaped angle)
Fig. 14
Fig. 16
Fig. 17
30