Maintenance And Inspection - Hitachi S 18SB Bedienungsanleitung

English
7. Install the air cover on the air vent on the side
where the side handle is attached to divert the
cooling air flow of the motor during operation as
much as possible. Hook tab of the air cover to the
air vent and push in the tab when installing. Use
a screwdriver etc. to pull as shown in Fig. 3 when
removing.
CAUTION
Prior to the sanding operation, make sure the
material you are going to sand.
If generation of harmful/toxic dusts such as lead
paint, woods and metals is expected under the
sanding operation, make sure the dust bag or
appropriate dust extraction system is connected
with dust outlet tightly.
Wear the dust mask additionally, if available.
Do not inhale or touch the harmful/toxic dusts
generated in sanding operation, the dust can
endanger the health of yourself and bystanders.
PRACTICAL SANDER APPLICATION
1. Do not heavily push the sanding disc to the surface
to be ground. Grinding operation can be achieved
with the weight of the machine alone, so maintain
the sanding disc to an extent that it lightly touches
the surface to be ground. When the sanding disc
is pushed heavily, its revolving speed drops, creating
an unevenly finished surface and causing motor
seizure from overload.
2. Rather than applying the entire disc surface to the
metal surface to be ground, use the sander by
inclining it approximately 15°~30° to grind with the
disc peripheral portion. (Fig. 1)
3. Switching on the sander
The switch is of the quick-break trigger system.
When the trigger is pulled, the switch turns on; and
when it is released, the switch turns off.
When it is desired to keep the power on for a
prolonged period in continuous use, the stopper
can be used to keep the switch on even after the
trigger has been released. (First pull the trigger, and
then press the stopper.) To turn the switch off, first
pull the trigger again to disengage the stopper.
4. Precaution after use
Do not lay the sander 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 disc sander is not in use, the power
source should be disconnected.
ATTACHMENT/REMOVAL OF SANDING DISC
CAUTION: Be sure to switch power OFF and disconnect
the attachment plug from the receptacle to
avoid a serious accident.
(1) Attach washer, rubber pad and sanding disc on the
spindle, in that order.
(2) While pushing the lock lever with one hand, lock
the spindle by turning the rubber pad slowly with
the other hand.
Tighten the wheel washer by using the supplied
wrench.
7
Remove the sanding disc in the reverse order to
attachment.
CAUTION:
Confirm that the lock lever is disengaged by pushing
lock lever two or three times before switching the
disc sander on.

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. 4)
The motor employs carbon brushes which are
consumable parts. Since an excessively worn carbon
brush can result in motor trouble, replace the carbon
brushes with new ones which have the same carbon
brush No. shown in the figure when they become
worn to or near the "wear limit". 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 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 modified to incorporate the latest technological
advancements.
Accordingly, some parts (i.e. code numbers and/or
design) may be changed without prior notice.
GUARANTEE
(Fig. 2)
We guarantee Hitachi Power Tools in accordance with
statutory/country specific regulation. This guarantee does
not cover defects or damage due to misuse, abuse, or
normal wear and tear. In case of complaint, please send
the Power Tool, undismantled, with the GUARANTEE
CERTIFICATE found at the end of this Handling instruction,
to a Hitachi Authorized Service Center.