Service And Repairs - Hitachi P 20SB Instruction Manual

English
2. Handling:
CAUTION:
The front base, rear base, and cutting depth control knob are precisely machined to
obtain specifically high precision. If these parts are roughly handled or subjected to
heavy mechanical impact, it may cause deteriorated precision and meduced 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 lossened, retighten them immediately.
WARNING:
4. Inspecting the carbon brushes (Fig. 20)
The motor employs carbon brushes which are
consumable parts. Replace the carbon brush with
a new one when it becomes worn to its wear limit.
Always keep carbon brushes clean and ensure that
they slide freely within the brush holders.
CAUTION: Using this planer with a carbon brush
which is worn in excess of the wear
limit will damage the motor.
NOTE: Use HITACHI carbon brush No.21 indicated in Fig. 20.
5. Replacing carbon brushes:
Disassemble the brush caps (Fig. 1) with a slotted screwdriver. The carbon brushes can
then be easily removed.

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.
NOTE:
Specifications are subject to change without any obligation on the part of the HITACHI.
16
Using this planer with loosened screws is extremely dangerous.
No. of carbon brush
Wear limit
21
0.20" (5mm)
0.47" (12mm)
Fig. 20