Maintenance And Inspection - Hitachi Koki W 4YD Instrucciones De Manejo

English
Do not drive screws while the slider case is in contact
with the wall. Damaging the screw head causes bit
wear. The proper tightening torque is not transmitted
to the screw if the screw head or bit is worn. This
might also cause the screw not to seat properly and
might cause this unit to break.
3. Using the hook
The hook can be installed on the right or left side and
the angle can be adjusted in 5 steps between 0° and
80°.
(1) Operating the hook
(a) Pull out the hook toward you in the direction of
arrow (A) and turn in the direction of arrow (B)
(Fig. 10).
(b) The angle can be adjusted in 5 steps (0°, 20°, 40°,
60°, 80°).
Adjust the angle of the hook to the desired position
for use.
(2) Switching the hook position
CAUTION
Incomplete installation of the hook may result in
bodily injury when used.
(a) Securely hold the main unit and remove the screw
using a slotted head screwdriver or a coin (Fig.
11).
(b) Remove the hook and spring (Fig. 12).
(c) Install the hook and spring on the other side and
securely fasten with screw (Fig. 13).
NOTE
Pay attention to the spring orientation. Install the
spring with larger diameter away from you (Fig. 13).
4. Attaching the rubber cover (Fig. 14)
If concerned about wind coming in from the air vents,
install the accessory rubber cover over the holes to
change the direction of air flow.
To install the cover, press the protrusions firmly into
the air vents. To install easily, press inwards, in order
from the sides.
5. When the slider won't move smoothly
If the slider will not move smoothly, try cleaning the
sliding surfaces of the slider and slider case with an
air gun, etc. (Fig. 15).
NOTE
The unit tends to easily become covered with lath or
plaster board dust during jobs where it faces upwards.
Clean the sliding surfaces at regular periods during
the work task.
6. Attaching the sheet
If the sheet has been damaged and cannot be used,
please replace the sheet with attached one. Attach
the sheet by inserting the holes on the sheet on the
two protrusions on the stopper (Fig. 16).
SCREW HANDLING
NOTE
Handle both the packed box of screws and the collated
screw strips with care. If you drop them, screws can
come out of the collated tape and cause screw feed
malfunctions. Do not expose the screws to prolonged
periods of direct sunlight or outside air. They can cause
rust and collated tape problems, so when you will not
be using the screws for awhile, put them in the screw
packing box or the like.
9

MAINTENANCE AND INSPECTION

1. Inspecting the driver bit
Using a broken bit or one with a worn out tip is
dangerous because the bit can slip. Replace it by
a new one.
2. 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 may result in serious hazard.
3. Inspecting the carbon brushes (Fig. 19)
The motor employs carbon brushes which are
consumable parts.
Since an excessively worn carbon brush can result
in motor trouble, replace the carbon brush with a
new one having the same carbon brush No. shown
in the figure, 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.
4. Replacing carbon brushes
Disassemble the brush caps with a slotted-head
screwdriver. The carbon brushes can then be easily
removed.
5. 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.
6. Cleaning of the outside
When the automatic screwdriver is stained, wipe
with a soft dry cloth or a cloth moistened with
soapy water. Do not use chloric solvents, gasoline
or paint thinner, as they melt plastics.
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.
NOTE
Due to HITACHI's continuing program of research and
development, the specifications herein are subject to
change without prior notice.