Cutting Operation - Hitachi C 10FCH2 Technical Data And Service Manual

8-4. Cutting Operation

(1) Cutting efficiency will be reduced if a dull saw blade is used, if an excessively long extension cord is used, or if
the wire gauge of the extension cord is too small. (For details on extension cords, please refer to the
Instruction Manual.) This is particularly important when cutting materials with dimensions which are at or near
the maximum capacity for the machine.
(2) The customer should be advised to thoroughly inspect the workpiece to ensure that there are no metallic
objects (nails in particular), sand, or other foreign matter in or on the workpiece. Saw blade contact with such
foreign matter will not only shorten the service life of the saw blade, but could cause serious accident. Should
the saw blade tips be broken off, the tips may fly toward the operator.
(3) Direct current cannot be used. The switch can be faulty if used.
(4) Press cutting
Like the Model C 10FCH, the Models C 10FCH2 and C 10FCE2 can be used for press cutting of workpieces
up to 59 mm x 144 mm (2-1/4" x 5-5/8") in a single operation by simply pushing the saw blade section (head)
downward. The customer should be cautioned that excessive pressure on the handle will not increase the
cutting speed. On the contrary, excessive pressure may result in reduced cutting efficiency (irregular or rough
cutting of the workpiece), and could also cause overload and subsequent burnout of the motor.
On completion of the cutting operation, turn the switch OFF and wait for the saw blade to come to a complete
stop before raising the saw blade section (head) to its original position. Raising the saw blade section (head)
while the saw blade is rotating may cause unwanted cutting marks on the workpiece.
Techniques to avoid unwanted cutting marks
Uneven and unwanted cutting marks can be avoided throughout the cutting operation by gently and smoothly
pressing down on the handle, so that the entire cutting operation is accomplished in a single uninterrupted
motion.
(5) Miter cutting
Miter cutting is accomplished by turning the table. (For details, please refer to the Instruction Manual.)
(6) Bevel cutting
Bevel cutting of 0
---
please refer to the Instruction Manual.)
CAUTION: When the workpiece is secured on the left side,
the cut-off portion comes to rest on the side of the
saw blade as illustrated in Fig. 12. If the handle is
raised before the saw blade rotation comes to a
complete stop, there is a chance that the cut-off
portion of the workpiece could become jammed
against the saw blade, causing a hazardous
condition. Instruct the customer to ensure
without fail that the saw blade comes to a complete
stop before attempting to raise the handle.
45û to the left is accomplished by inclining the saw blade section (head). (For details,
Fixed-side workpiece
--- 14 ---
Cut-off-side
workpiece
Saw blade
Fig. 12