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4
MOUNTING AND DISMOUNTING THE WOOL
BONNET (Optional accessory) (Fig. 1)
CAUTION
Be sure to switch power OFF and disconnect the plug
from the receptacle to avoid serious trouble.
1. Mounting
(1) Attach the washer nut on the rubber pad.
(2) While pushing the lock lever with one hand, lock the
spindle by turning the rubber pad slowly with the
other hand.
Tighten the washer nut by using the supplied wrench.
(3) Cover the rubber pad with the wool bonnet. (optional
accessory)
Pull the string of the wool bonnet, (optional accessory)
let it contact the rubber pad, and tie the string up.
Then, tuck the knot and the remainder of the string
into the wool bonnet. (optional accessory) (See Fig.
2)
CAUTION
Improper fitting of the wool bonnet may cause
vibration.
Confirm that the lock lever is disengaged by pushing
lock lever two or three times before switching the
polisher on.
2. Dismounting
To remove the wool bonnet, follow the above
precedures in reverse.
PRACTICAL POLISHER APPLICATIONS
1. Curved surface as well as plain one is treated for
finishing. It is recommended to hold the polisher
without pushing on the material, and make the best
of the weight of the machine alone. As the excessive
pressure on the polishing surface will not only bring
unsatisfactory result but also apply overload on the
motor.
CAUTION
When using the tool at any value except the full
speed (Dial scale 6), the motor cannot be sufficiently
cooled due to the decreased number of revolution.
This could result in the risk of burning and damaging
the motor before an overload protective mechanism
starts to function.
Make sure that you use the tool by lightly applying
it to the surface of material when you use it at any
value except the full speed (Dial scale 6).
2. Depending on the finishing degree of the surface,
use the polishing compound or wax. In order to
attain the maximum polishing effect, first polish the
surface with the fine sand paper using the sander,
than polish it with the polishing compound using the
wool bonnet, and than finish with wax. Apply a small
quantity of the compound and wax to the surface,
and polish with the wool bonnet.
3. Don't let the cord touch the wool bonnet during its
operation, for the rotating wool bonnet may catch
the cord and get caught it in.
4. Switching on the polisher
Pulling the trigger of switch and push the stopper, it
keeps the switched-on condition and it is convenient
for the continuous operation. When switched off, the
stopper can be disengaged by means of pulling the
trigger again.
5. Precaution after use
Do not lay the polisher down immediately after using
on a place where there are many shavings, much dirt
and dust until it has completely stopped revolving.
CAUTION
When the polisher is not in use, the power source
should be disconnected.
MAINTENANCE AND INSPECTION
1. 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.
2. 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.
3. Inspecting the carbon brushes (Fig. 5)
The Motor employs carbon brushes which are con-
sumable 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 figure.
In addition, always keep carbon brushes clean and
ensure that they slide freely within the brush holders.
4. Replacing carbon brushes
Disassemble the brush caps with a slotted-head
screwdriver. The carbon brushes can then be easily
removed.
5. Service parts list
A: Item No.
B: Code No.
C: No. Used
D: Remarks
CAUTION
Repair, modification and inspection of Hitachi Power
Tools must be carried out by an 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 modified 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 specifications herein are sub-
ject to change without prior notice.
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