How To Operate; Maintenance And Inspection - Hitachi CC 14SF Handling Instructions Manual

MOUNTING AND DISMOUNTING THE CUT-OFF
WHEEL
1. Dismounting the cut-off wheel (Fig. 1)
(1) Press the stopper and loosen the bolt with a hex. bar
wrench.
CAUTION
When the mounting shaft for cut-off wheel cannot be
fi xed with pressing the stopper, turn the bolt with a hex.
bar wrench while pressing the stopper. The mounting
shaft for cut-off wheel is fi xed when the stopper has been
lowered.
(2) Remove the bolt, washer (A), and the wheel washer and
detach the cut-off wheel.
2. Mounting the cut-off wheel
Throughly remove dust from the wheel washers and
bolt then mount the wheel by following the dismounting
procedures in reverse order. Be sure to attach the sub-
cover at the end.
CAUTION
Confi rm that the stopper which was used for installation
and removal of the cut-off wheel has returned to the
retract position.

HOW TO OPERATE

1. Procedure for fi xing the cutting material (Fig. 2
and 3)
Place the workpiece material between vise (A) and vise
(B), raise the clutch and push the screw handle to bring
vise (A) lightly into contact with the workpiece material,
as shown in Fig. 2.
Then, turn the clutch down, and securely fi x the
workpiece material in position by turning the screw
handle. When the cutting job is completed, turn
the screw handle 2 or 3 times to loosen the vise,
and remove the workpiece material, as shown in
Fig. 3.
CAUTION
Never remove or install a workpiece material while the
cut-off wheel is rotating, to avoid personal injury.
2. Cutting at angles (Fig. 4 and 5)
(1) The machine permits cutting at angles of 45° or 60°.
(2) Loosen the two M10 hexagon socket head bolts on the
vice (B), then set the working surface on the vice-jaw at
any angles of 0°, 30°, or 45° as shown in Fig. 5. Upon
completion of setting, securely tighten the two 10 mm
bolts.
(3) When wide material is cut with angle, it will be fi rmly
camped by fi xing a steel board like Fig. 6 to the vise (B).
3. Moving the stationary vise-jaw (Fig. 7)
The vise opening is set at the maximum of
170 mm when shipped from the factory. In case an
opening of more than 170 mm is required, move the vise
to the position shown by the chain line after unscrewing
the two bolts. The maximum opening can be set in two
steps 205 mm and 240 mm. When the cutting material
is excessively wide, the vise can be eff ectively used by
repositioning the stationary side of the vise-jaws.
4. How to use metallic block (Fig. 8)
When the cut-off wheel has a reduced outer diameter,
insert between the vise (A) and (B) a metallic block
slightly smaller than the dimension of workpiece being
cut to use the cut-off wheel economically.

MAINTENANCE AND INSPECTION

CAUTION
Be sure to switch off and pull off the plug from the power
outlet before inspection and maintenance.
1. Replacing a cut-off wheel
When the cut-off wheel has already become dull while
continually using, the unnecessary load is got from the
motor. Consequently, redress or replace a dull cut-off
wheel to ensure grinding effi ciency.
2. Inspecting the carbon brushes (Fig. 9)
The Motor employs carbon brushes which are
consumable parts. When they become worn to or near
the "wear limit", it could result in motor trouble. When an
auto-stop carbon brush is equipped, the motor will stop
automatically. At that time, replace both carbon brushes
with new ones which have the same carbon brush
Number shown in the fi gure. In addition, always keep
carbon brushes clean and ensure that they slide freely
within the brush holders.
3. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that
they are properly tightened. Should any of the screws be
loose, retighten them immediately. Failure to do so could
result in serious hazard.
4. Lubrication
Supply oil in the following oil supply points once a month
so as to keep the machine workable for a long time.
Oil supply points
○ Rotary part of shaft
○ Rotary part of vise
○ Slide way of vise (A)
5. Cleaning
Wipe off chip and waste adhered to the machine with a
cloth or the like time to time. Be careful not to make the
motor portion wet with oil or water.
6. Service parts list
A: Item No.
B: Code No.
C: No. Used
D: Remarks
CAUTION
Repair, modifi cation and inspection of Hitachi Power
Tools must be carried out by a Hitachi Authorized Service
Center.
This Parts List will be helpful if presented with the tool to
the Hitachi Authorized Service Center when requesting
repair or other maintenance.
In the operation and maintenance of power tools, the
safety regulations and standards prescribed in each
country must be observed.
MODIFICATIONS
Hitachi Power Tools are constantly being improved
and modifi ed to incorporate the latest technological
advancements.
Accordingly, some parts (i.e. code numbers and/or
design) may be changed without prior notice.
NOTE:
Due to HITACHI's continuing program of research and
development, the specifi cations herein are subject to change
without prior notice.
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