Lubrication; Cold Weather Care - Hitachi NH 90AB Instrucciones Y Manual De Seguridad

Lubricator ..... The lubricator supplies an
oil mist to the Nailer.
Inspect the lubricator
before operation to be
sure
lubricant is adequate.
Use Hitachi pneumatic
tool lubricant.
Nailer Side
Lubricator
3. Air hose
Air hose must have a minimum working
pressure rating of 150 psi (10.4 bar 10.6
2
kgf/cm ) or 150% of the maximum
pressure produced in the system,
whichever is higher.
4. Air consumption
Using the Air consumption table and the
Air compressor size formula, find a
correct compressor size.
Air consumption table
psi
Operating
(bar)
pressure
(kgf/cm
3
Air ft /cycle
consumption (ltr/cycle) (3.2) (3.2) (3.2)
Air compressor size formula
Amount of air required
=number of Nailers
× average nails driven each minute
per Nailer
× air consumption at given air
pressure
× safety factor (always 1.2)
Example: 2 Nailers (NH90AB)operating
at 100 psi driving 2 nails per
minute
Amount of air required
=2 × 2 × 1.134 (3.2) × 1.2
3
=5.4 CFM (ft /min) (15.4 ltr/min)
the supply of
Regulator
Compressor
Side
Filter
80 90 100
(5.5) (6.2) (6.9)
2
) (5.6) (6.3) (7)
.113 .113 .113
— 11 —
After making the calculations as shown
above, you should find a compressor
providing 5.4 CFM of air that is required.

LUBRICATION

It is important that the Nailer be properly
lubricated.
Without proper lubrication, the Nailer will not
work properly and parts will wear
prematurely.
Use Hitachi pneumatic tool lubricant.
Do not use detergent oil or additives.
These lubricants will harm the O-rings
and other rubber parts. This will cause
the Nailer to malfunction.
Filter-regulator-lubricator units should
always be used.
Keep the lubricator filled with Hitachi
pneumatic tool lubricant.
If a lubricator is not available, supply 10
drops min. of Hitachi pneumatic tool
lubricant into the air plug on the Nailer
every 100 shots.

COLD WEATHER CARE

Do not store the Nailer in a cold weather
environment.
Keep the Nailer in a warm area until
beginning the work.
If the Nailer is already cold, bring it in a
warm area and allow the Nailer to warm
up before use.
1 Reduce the air pressure to 64 psi (4.4
bar 4.5 kgf/cm
2 Remove nail from the Nailer.
3 Connect the air hose and free-fire
(blank-fire) the Nailer.
The lowered air pressure will be
enough to free-fire the Nailer.
Slow speed operation tends to warm
up the moving part.
CAUTION
Do not free-fire the Nailer at high
pressure.
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