Maintenance And Inspection - Hitachi F-30A Handing Instructions

(1) Clamp the blade with blade holders (A) and (B) as
shown in Fig. 10 and engage with the cutter block
groove in the direction shown in Fig. 9.
(2) Temporarily tighten the 3 bolts with the supplied
wrench, as shown in Fig. 8.
Check that the blade and blade holders (A) and (B)
are positioned correctly when viewed from the cutter
block side, as shown in Fig. 11.
Check that the boss of blade holder (B) is engaged
with the blade groove and holes in blade holder
(A), as shown in Fig. 12.
(3) For rabbeting, apply a scale (straight piece of wood,
etc.) to the side surfaces of the rear and front bases
as shown in Fig. 13 and position the blade so it
is aligned with or slightly protruded from the base.
Blade holders (A) and (B) should not protrude from
the cutter block side surface.
(4) Adjustment of cutter blade height
Apply a scale to the rear base as shown in Fig. 14,
manually rotate the cutter block and adjust the
cutter height so the scale moves 1-2 mm back and
forth. Use the supplied hexagonal bar wrench to
rotate the hex, socket head screw. (Fig. 15)
(5) Fully tighten the 3 bolts with the supplied wrench.
(6) Manually rotate the cutter block and adjust the
opposite blade. Manually rotate the cutter block
several times and check the blade and blade holders
(A) and (B) do not come in contact with the housing.
Use a hexagonal wrench to confirm that the M5
hexagon socket set screws as shown in Fig. 15 are
tight. If any screw is loose, tighten it.
3. Cautions to take when exchanging cutter blades
(1) When it is difficult to remove the blade being caught
between blade holders (A) and (B), position the
assembly as shown in Fig. 16 so that blade holder
(B) is placed at the lower part. Lightly strike the
assembly with a wooden hammer while holding it
on a wooden stands, etc., and the blade will come
off easily.
(2) Blade holders (A) and (B) are a press fit, integrated
as one unit, in order to facilitate blade installation.
If the holders come apart while exchanging the
blade, align the protruding part on blade holder (B)
with the recess on blade holder (A) as shown in
Fig. 17. Then strike holder (B) against holder (A)
to join them.

MAINTENANCE AND INSPECTION

1. Inspecting the cutter blades:
Continued use of dull or damaged cutter blades will
result in reduced cutting efficiency and may cause
overloading of the motor. Replace the cutter blades
as often as necessary.
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 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. Inspecting the carbon brushes: (Fig. 18)
The motor employs carbon brushes which are
consumable parts. Since an excessively worn carbon
brush could result in motor trouble, replace a carbon
brush with a new one 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.
5. Replacing a carbon brush:
After removing the chip cover, use a minus-head
screwdriver to disassemble the brush cap. The
carbon brush can then be easily removed with the
spring.
6. 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.
7. 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
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.
NOTE
Due to HITACHl's continuing program of research and
development, the specifications herein are subject to
change without prior notice.
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