SECTION 2: DESCRIPTION
AIR N ARC
®
300 SERIES ALL-IN-ONE POWER SYSTEM
®
PAGE - 26
090010-OP_r0
The engine is preset to a fixed speed. The adjustment for
the engine can be attained by setting the speed
adjustment screws. For procedure on setting the engine
speed control, consult
Section 6.5.14
.
The drive systems from the engine to both the
compressor and generator are accomplished with two
micro V-belt systems. Both of these systems have
provisions for belt tensioning, should the belts become
stretched out over time.
The fuel tank provided in the 300 Series Power System
has a capacity of twelve (12) gallons (45.4 L), and is
accessed via a conveniently-located port for ease of refill.
The filler cap is accessed on the generator side of the
package from the left front corner, under the hood
(
Figure 2-11
). The fuel system has a fuel supply and
return connection on the top of the fuel tank. Fuel level
can be checked on the fuel level gauge that is located on
the instrument panel. The fuel level gauge receives its
level signal from the fuel sender that is located in the fuel
tank.
The fuel system contains two fuel filters (
Figure 2-12
).
The primary
(70 micron), and secondary (10 micron) that
can be easily serviced, if necessary. The primary filter is
located on the suction side of the fuel pump, and the
secondary filter is located after the pump.
2.5 AC GENERATOR
See
Figure 2-13
. The AC generator utilized on the 300
Series package is a 2-pole, single phase, 2-bearing,
brussels style. These units should not require
maintenance since they do not have slip rings, nor
slipping contacts. The end brackets are die-cast in a high
resistance aluminum alloy, the shaft is C45 steel, and is
NOTE
Refer to the Engine Operator’s Manual
for service and maintenance
recommendations that are not provided
in this manual.
NOTE
Do not tamper with the governor setting
to increase the maximum engine speed.
Overspeed is hazardous and will void the
engine warranty. The maximum allowable
high idle speed no load for these engines
is 4200 RPM.
Figure 2-11: Fuel Fill Port Location
