Hitachi CL 10D2 Technical Data And Service Manual page 15

Nut
(14) 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
(15) Never attempt cutting operation at the
If the storage battery charge runs out and motor rotation stops during
cutting, pull the switch (in the
forward/reverse changeover button from the left, as shown in Fig. 17,
to disengage the cutter from the stud. As the motor is locked
at the position, cutting of a stud cannot be performed, even
if the storage battery is fully charged. In addition, as excessive
pressure or twisting force applied to the main body can seriously
damage the tool, the customers should be instructed never to
attempt to forcibly free the cutters from the stud.
Stud
L-shaped angle
(24 mm L-shaped angle)
8 mm or more
Notched groove
"Yes"
"Yes"
position.
position) while pressing the
25
(30 mm L-shaped angle)
Fig. 14
"No"
"No"
--- 12 ---
30
Fig. 16
Fig. 17