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14
5. Inspecting the carbon brushes (Fig. 14)
The motor employs carbon brushes which are consumable parts. Since
and excessively worn carbon brush can result in motor trouble, replace the
carbon brush with new ones 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.
NOTE:
When replacing the carbon brush with a new one, be sure to use the
Hitachi Carbon Brush Code No. 999054.
6. Replacing carbon brushes
Take out the carbon brush by first removing the brush cap and then
hooking the protrusion of the carbon brush with a flat head screw driver,
etc., as shown in Fig. 16.
When installing the carbon brush, choose the direction so that the nail of the
carbon brush agrees with the contact portion outside the brush tube. Then
push it in with a finger as illustrated in Fig. 17. Lastly, install the brush cap.
CAUTION:
●
Be absolutely sure to insert the nail of the carbon brush into the contact
portion outside the brush tube. (You can insert whichever one of the
two nails provided.)
●
Caution must be exercised since any error in this operation can result
in the deformed nail of the carbon brush and may cause motor trouble
at an early stage.
7. Check for Dust
Dust may be removed with a soft cloth or a cloth dampened with soapy
water.
Do not use bleach, chlorine, gasoline or thinner, for they may damage
the plastics.
8. Disposal of the exhausted battery
WARNING:
Do not dispose of the exhausted battery. The battery must explode if it
is incinerated. The product that you have purchased contains a
rechargeable battery. The battery is recyclable. At the end of it’s useful
life, under various state and local laws, it may be illegal to dispose of
this battery into the municipal waste stream. Check with your local
solid waste officials for details in your area for recycling options or
proper disposal.
9. Storage
Storing in a place below 104°F (40°C) and out of the reach of children.
3mm
11.5mm
Wear limit
Fig. 14
Nail of carbon brush
Protrusion
of carbon
brush
Fig. 15
Fig. 16
Contact portion
outside brush tube
10. Service and repairs
All quality power tools will eventually require servicing or replacement of parts because of wear from normal
use. To assure that only authorized replacement parts will be used, all service and repairs must be performed
by a HITACHI AUTHORIZED SERVICE CENTER, ONLY.
11. Service parts list
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.
MODIFICATIONS:
Hitachi Power Tools are constantly being improved and modified to incorporate the latest technological
advancements.
Accordingly, some parts may be changed without prior notice.
Fig. 17