Precautions In Sales Promotion; Safety Instructions - Hitachi CL 10SA Technical Data And Service Manual

7. PRECAUTIONS IN SALES PROMOTION

7-1. Safety Instructions

In the interest of promoting the safest and most efficient use of these tools by all of our customers, it is very
important that at the time of sale the salesperson carefully ensures that the buyer seriously recognizes the
importance of the contents of the Handling Instructions, and fully understands the meaning of the precautions
listed on the Caution Plate and Name Plate attached to each tool.
A. Handling Instructions
Salespersons must be thoroughly familiar with the contents of the Handling Instructions in order to give pertinent
advice to the customer.
(1) Perform cutting only after confirming that the threads of the stud cutter properly engage the threads of the
stud. If the threads are not properly engaged, damage to the threads of the stud during cutting may make the
stud unusable, and/or the cutter blade may be damaged.
(2) Ensure that the portion cut off of the stud is at
least 10 mm in length.
As the blade portion of the cutter is very thin,
if only one or two threads of the cutter are
engaged with the threads of the stud, as
illustrated in Fig. 13, the excessive
concentration of load on the blade portion will
cause it to break after only a few cutting
operations. The length of stud cut off should
be at least 10 mm. Instruct customers to
confirm that all of the threads of the cutter
engage the threads of the stud during cutting.
(3) Care should be exercised when performing cutting in narrow places.
For example, in building construction work, studs that are used to hang ducts are often fitted with L-shaped
angles. Instruct the customers to ensure that there is a clearance of at least 8 mm between the stud and the
angle when 25 mm or 30 mm L-shaped angles are used, as illustrated in Fig. 14, before starting the cutting
operation. If the clearance is less than 8 mm, Bracket (A) will come in contact with the side surface of the
angle, preventing proper engagement of the threads of the cutters and the threads of the stud, and causing
damage to the threads of the stud and/or the cutter blade.
Also, since the minimum cutting length of a stud is 14 mm from the surface of the nut, the stud can be cut off
at a point 5 mm within the tip of the angle in the case of a 30 mm L-shaped angle, and approximately even
with the tip of the angle in the case of a 25 mm L-shaped angle, as illustrated in Fig. 14. If cutting is
attempted shorter than indicated, Bracket (A) will come in contact with the nut, causing possible damage to
the cutter. Accordingly, particular caution is necessary.
10 mm or more
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Cutter
Damaged blade
Cutter
Fig. 13