Working Environment; Air Supply - Hitachi NT 65MA4 Instruction And Safety Manual

English

WORKING ENVIRONMENT

● No fl ammable gas, liquid or other
fl ammable objects at worksite.
● Clear the area of children or
unauthorized personnel.

AIR SUPPLY

● Never connect Nailer to pressure
which potentially exceeds 200 psi
(13.7 bar 14 kgf/cm
● Never use non relieving coupler on
Nailer.
1. Power source
○ Use only clean, dry, regulated compressed
air as a power source for this Nailer.
○ Air compressors
compressed air to this Nailer must comply
with the requirements of the latest version
of ANSI Standard B 19.3 "Safety Standard
For Compressors For Process Industries."
○ Moisture or oil in the air compressor may
accelerate wear and corrosion in the
Nailer.
Drain daily.
2. Filter-Regulator-Lubricator
○ Use a regulator with a pressure range of 0
– 120 psi (0 – 8.3 bar 0 – 8.5 kgf/cm
○ Filter-regulator-lubricator
an optimum condition for the Nailer and
extend the Nailer life. These units should
always be used.
Filter
The fi lter removes
dirt mixed
Drain daily unless fi tted with an automatic
drain.
Keep the fi lter
maintenance.
10
WARNING
DANGER
● NEVER
oxygen or other
bottled gases.
Explosion
occur.
WARNING
).
2
used to supply
2
units supply
moisture
in compressed
clean by regular
Regulator
The regulator controls the operating
pressure for safe operation of the Nailer.
.. Inspect the regulator before operation to
be sure it operates properly.
Lubricator
The lubricator supplies an oil mist to the
Nailer.
Inspect the lubricator before operation to
be sure the supply of lubricant is adequate.
Use Hitachi pneumatic tool lubricant.
use
may
Nailer Side
3. Air hose
Air hose must have a minimum working
pressure rating of 150 psi (10.4 bar 10.6
kgf/cm ) or 150% of the maximum pressure
2
produced in the system, whichever is
higher.
4. Air consumption
Using the Air consumption table and the
Air compressor size formula, fi nd a correct
compressor size.
Air consumption table
Operating
pressure
Air
consumption
).
Air compressor size formula
Amount of air required
= number of Nailers
× average nails driven each minute
per Nailer
× air consumption at given air
and
pressure
air.
× safety factor (always 1.2)
Example: 3 Nailers operating at 100 psi
driving 30 nails per minute
Amount of air required
= 3 × 30 × .045 (1.29) × 1.2
= 4.9 CFM (ft
Regulator
Compressor
Side
Lubricator
psi 80 90
(bar) (5.5) (6.2)
(kgf/cm ) (5.6) (6.3)
2
ft /cycle .038 .042
3
(ltr/cycle) (1.07) (1.18) (1.29)
/min) (139 ltr/min)
3
Filter
100
(6.9)
(7)
.045