Hitachi P 20SF, Handling Instructions Manual

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4
English
SPECIFICATIONS
Model P20SF P20ST
Voltage* (110 V, 230 V, 240 V) 110 V (230 V, 240 V)
Power Input* 620 W 550 W 580 W
No-Load Speed 17000 min
–1
Cutting Width 82 mm
Max. Cutting Depth 2.6 mm 1.5 mm
Weight (without cord and guide) 2.5 kg
* Be sure to check the nameplate on product as it is subject to change by areas.
NOTE
Due to HITACHI’s continuing program of research and development, the speci fi cations herein are subject to change
without prior notice.
MAINTENANCE AND INSPECTION
1. Inspecting the blades
Continued use of dull or damaged blades will result in
reduced cutting e ffi ciency and may cause overloading
of the motor. Sharpen or replace the blades as often as
necessary.
2. Handling
CAUTION
The front base, rear base, and cutting depth control
knob are precisely machined to obtain speci fi cally high
precision. If these parts are roughly handled or subjected
to heavy mechanical impact, it may cause deteriorated
precision and reduced cutting performance. These parts
must be handled with particular care.
3. 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.
4. 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.
5. Inspecting the carbon brushes (Fig. 15)
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 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 ensue that they slide freely within the
brush holders.
6. Replacing carbon brushes (Fig. 15)
After removing the chip cover, use a slotted screwdriver
to disassemble the brush caps. The carbon brushes can
then be easily removed with the spring.
7. Replacing supply cord
If the replacement of the supply cord is necessary, it has
to be done by Hitachi Authorized Service Center to avoid
a safety hazard.
CAUTION
In the operation and maintenance of power tools, the
safety regulations and standards prescribed in each
country must be observed.
MOUNTING AND OPERATION
Action Figure Page
Adjusting the cutter depth 2 99
Beginning and ending the cutting
operation
3 99
How to use the cord holder (P20SF) 4 99
How to use the stand (P20SF) 5 99
Carbide blade disassembly
(for Double edged blade type)
6 99
Carbide blade assembly
(for Double edged blade type)
7 100
Adjustment of carbide blade height
(for Double edged blade type)
8 100
Resharpenable blade disassembly 9 100
Resharpenable blade assembly 10 100
Adjustment of resharpenable blade
height
11 101
Sharpening the resharpenable blade 12 101
Attaching and removing the dust
adapter (Optional accessory)
13 101
Switch operation 14 102
Replacing carbon brushes 15 102
Selecting accessories ― 103
1. Surface cutting
Rough cutting should be accomplished at large cutting
depths and at a suitable speed so that shavings are
smoothly ejected from the machine. To ensure a
smoothly fi nished surface, fi nish cutting should be
accomplished at small cutting depths and at low feeding
speed.
2. Blade sharpening intervals
Blade sharpening intervals depend on the type of wood
being cut and the cutting depth. However, sharpening
should generally be e ff ected after each 500 meters of
cutting operation.
3. Dressing Stone
When a water dressing stone is available, use it after
dipping it su ffi ciently in water since such a dressing stone
may be worn during grinding works, fl atten the upper
surface of the dressing stone as often as necessary.
0000Book̲P20SF.indb 4 0000Book̲P20SF.indb 4 2014/12/02 17:37:14 2014/12/02 17:37:14