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2. Adjusting a loose slide pipe
After extended use of the power tool, the slide pipe
(A) and the bushing can become loose due to
vibration. Never operate the tool if any components
are loose to avoid personal injury.
(1) Loosen the 8mm nut and tighten the two 8mm
hexagon socket set screws until the power tool
operates smoothly without looseness.
(2) Properly tighten the 8mm nut after completing
these adjustment.
Fig. 52
3. Inspecting the carbon brushes
For your continued safety and electrical shock protection, carbon brush inspection and
replacement on this tool should ONLY be performed by a Hitachi Authorized Service
Center.
4. About Handling the Motor (see Fig. 1)
Winding of the motor is said to be the heart of this tool. Exercise utmost caution not to
damage the winding by exposing it to wash oil or water.
NOTE: Accumulation of dust and the like inside the motor can result in a malfunction.
After using the motor for 50 hours or so, carry out no-load running, and blow
in the dry air from a wind hole at the motor's rear. Such action is effective to
discharge dust and the like.
5. Inspecting the screws
Regularly inspect each component of the power tool for looseness.
Re-tighten screws on any loose part.
WARNING: To prevent personal injury, never operate the power tool if any
components are loose.
6. Inspecting the lower guard for proper operation
Before each use of the tool, test the lower guard (see Fig. 7) to assure that it is in good
condition and that it moves smoothly.
Never use the tool unless the lower guard operates properly and it is in good mechanical
condition.
7. Storage
After operation of the tool has been completed, check that the following has been
performed:
(1) Trigger switch is in OFF position,
(2) Power plug has been removed from the receptacle,
Slide
Pipe (A)
Holder (A)
Bushing
8mm Hex. Socket
Set Screw
8mm Nut
01Eng_C10FSH_Eng 3/29/07, 12:30 PM31