English
9
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Mounting the Diamond Wheel. (Fig. 5)
NOTE
Mounting of the diamond wheel on the spindle is
illustrated in
Fig. 5
. Note that the wheel washer is
reversed from ordinary usage with depressed center
wheel.
(1) Mount the wheel washer and diamond wheel onto the
spindle.
(2) Mount the concave side of the wheel nut onto the
diamond wheel, and screw the wheel nut onto the
spindle.
(3) As shown in
Fig. 5
push in the lock pin to prevent rotation
of the spindle. Then, secure the diamond wheel by
tightening the wheel nut with the wrench.
MAINTENANCE AND INSPECTION
1.
Inspecting the depressed center wheel
Ensure that the depressed center wheel is free of cracks
and surface defects.
Replace the depressed center wheel when it has been
worn out to about 60mm in external diameter.
2.
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.
3. Maintenance of the motor
The motor unit winding is the very “heart” of the power
tool. Exercise due care to ensure the winding does not
become damaged and/or wet with oil or water.
4. Inspecting the carbon brushes (Fig. 8)
The motor employs carbon brushes which are
consumable parts. Since an excessively worn carbon
brush can result in motor trouble, replace the carbon
brush with a new one having the same carbon brush No.
shown in the
fi
gure when it becomes worn to or near the
“wear limit”. In addition, always keep carbon brushes
clean and ensure that they slide freely within the brush
holders.
5. Replacing carbon brushes
Disassemble the brush caps with a slotted-head
screwdriver. The carbon brushes can then be easily
removed.
6.
If the supply cord of this tool damaged, it must be
replaced by a specially prepared cord available through
the service organization.
7. Service parts list
A:
Item
No.
B:
Code
No.
C:
No.
Used
D:
Remarks
CAUTION
Repair,
modi
fi
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.
MODIFICATION
Hitachi Power Tools are constantly being improved
and modi
fi
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 HITACHI’s continuing program of research and
development, the speci
fi
cations herein are subject to change
without prior notice.
000Book̲PDA-100K̲Asia.indb 9
000Book̲PDA-100K̲Asia.indb 9
2015/06/03 12:01:13
2015/06/03 12:01:13
