Inspection And Maintenance - HIKOKI NV 100H Mode D'emploi

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4. Driving nails into concrete
CAUTION
○ Use hardened nails designed for use with concrete.
○ Place the nailer vertically over the location into which
the nail is to be driven.
○ Do not drive nails directly into concrete or attach metal
plates directly onto it.
○ Do not drive nails into the edge of concrete.
○ Do not use the nailer in locations from which other items
are suspended (suspended pipes, etc.).
NOTE
Only use the nailer on concrete that has not yet set, soon
after it has been poured.
Using the nailer on hardened concrete may result in
bent nails and nails being insuffi ciently driven in.
[Selecting hardened nails for use with concrete]
Select nails with a concrete intrusion depth of between
10 to 15 mm.
Reference Examples
Wood Length of Nails
Thickness to be Used
35 mm
45 mm
50 mm
Length of Nails
to be Used
NOTE
The nails will not be driven in suffi ciently if the concrete
intrusion depth is deeper than 15 mm.
5. Adjusting the nail-driving depth
CAUTION
When making adjustments, be sure remove your fi nger
from the trigger. When making adjustments, be sure
that the nail outlet is not facing downward and that
body parts or other people are not in the path of the nail
outlet.
○ Adjusting the adjuster (Fig. 13)
Carry out test driving. If the nails are too deep, turn the
adjuster to the shallow side (
If the nail depth is too shallow, turn the adjuster to the
mark) (See Fig. 13, 14).
deep side (
Depth is changed 1 mm with each rotation of the
adjuster.
NOTE
○ When adjusting the adjuster, it does not rotate more
than 3 mm from the deepest point where a nail goes
down. Do not rotate the adjuster by force beyond that
point.
○ The nail-driving depth can also be adjusted by changing
the air pressure used. Carry this out together with
movement of the adjuster. Using a high air pressure that
does not match the nail-driving resistance will shorten
the life of this nailer.
12
Concrete
Intrusion Depth
50 mm Approx. 15 mm
57 mm Approx. 12 mm
65 mm Approx. 15 mm
Wood Thickness
Concrete Intrusion
Depth 10 to 15 mm
mark).
6. How to use nosecap
CAUTION
Remove the hose from the nailer and release the
compressed air before installing or removing the
nosecap to prevent accidental nail ejection.
○ Attach the nose cap on the tip of the push lever when
you wish to protect the surface of wood, etc., from
scratches.
(1) Attaching and detaching nose cap
The nose cap can be attached by simply pressing it into
the push lever.
Press it in until a convex part inside the nose cap enters
into a hole of the push lever. (Fig. 15)
For removal, insert a thin rod such as a screw driver into
the gap on the back of the push lever, and then pull it
out.
(2) Safekeeping of nose cap
Put the removed nose cap in a space behind the
magazine for safekeeping. (Fig. 16)

INSPECTION AND MAINTENANCE

CAUTION
Be sure to disconnect the hose during cleaning jams,
inspection, maintenance and cleaning.
1. Countermeasure for nail jamming
(1) Remove the nail roll from the magazine, open the nail
guide, insert a rod into the outlet and tap the rod with a
hammer (Fig. 17).
(2) Remove the jammed nail with slotted screw driver
(Fig. 18).
(3) Cut off the defective part of the steel wire which links the
nails with cutting nippers, correct the deformation, then
load the nail roll in the magazine.
(4) In case of frequent jams, consult the Authorized Service
Center from which you bought this machine.
2. Check on mounting screws for each part
At regular intervals check every part for loose mounting
screws and whether or not there are any air leaks.
Retighten any loose screws. Operating the equipment
with loose screws untightened will incur a hazard.
3. Inspecting the push lever
Check if the push lever can slide smoothly (Fig. 19).
Clean up the sliding area of the push lever and use the
provided oil for lubrication from time to time. Lubrication
enables smooth sliding and simultaneously serves to
prevent the formation of rust.
4. Inspecting the feeders
(1) Occasionally clean the knob sliding part and then apply
the recommended oil (See Fig. 19).
(2) Open the nail guide and remove dust, etc., as shown
in Fig. 20. Apply lubricant to the sliding groove of the
feeder and shaft. Check the nail stopper (A) and nail
stopper (B) slide smoothly by pushing them with your
fi nger.
(3) Also, apply the recommended oil to the feeding sur face
of the nose and nail guide after cleaning. This promotes
smooth operation and retards corrosion.
CAUTION
Check for smooth movement of the feeders and
stoppers before use. If movement is uneven, nails could
be fi red at an irregular angle, presenting a hazard to the
operator and others nearby.
5. Inspect the Trigger
Periodically clean the sliding parts of the trigger, and
make sure that the trigger moves smoothly (Fig. 21).