Adjusting The Engine Speed; Adjusting The Pressure Setting; Re-Tensioning And Replacing The Serpentine Drive Belts - Vanair AIR N ARC I 300 SERIES Operation Manual

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AIR N ARC I-300 SERIES ALL-IN-ONE POWER SYSTEM
It may be necessary to change the
compressor oil and oil filter at earlier
intervals if the compressor oil has water
contamination or if the compressor
system is operated in a dirty environment.
Refer to the Engine Operator's Manual
for detailed maintenance and
replacement procedures for the engine.
Inspect and replace damaged components
before operation with Genuine Vanair
Replacement Parts.
DO NOT mix different compressor fluid
types.Use only Vanguard™ Premium
Synthetic Compressor Oil.
Substituting non-Vanguard Oil or non-
genuine Vanair filter components will void
the warranty.

5.4.1 ADJUSTING THE ENGINE SPEED

Consult the Vanair
issues relating to adjustment of engine
speed.
5.4.2

ADJUSTING THE PRESSURE SETTING

WARNING
The compressor cut-in/cut-out pressures
have been factory-adjusted within the
limits of the compressor manufacturer,
and should not need to be adjusted. The
maximum pressure limit of the
compressor is 175 psi. Pressure should
never be allowed to go beyond this limit
or what has been set by local laws and
regulators. This system will disengage
the clutch at 185 psi. A 200 psi safety
relief valve is located on the air tank to
prevent over pressurizing the system.
NOTE
NOTE
NOTE
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Service Department for
090045-OP_r1
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The Cut-in pressure is defined as the
pressure in which the compressor starts
pumping. Anytime the pressure in the tank
falls below this pressure the compressor is
allowed to start pumping.
The Cut-out pressure is defined as the
pressure in which the compressor stops
pumping. When the pressure in the air tank
rises above this pressure the compressor is
signaled to stop pumping.
Although pressure settings are adjusted at
the factory before shipping, and should not
need to be adjusted, a situation may occur
where it is necessary to manually adjust or
reset either or both of these settings. For
such cases, consult Figure 5-2 , and the
following procedure:
1. Locate the air pressure control switch
[ A ] at the left rear corner of the
machine. Remove the cover-retaining
screw fastening the cover to the
switch, and remove the cover.
2. To adjust the compressor pressure,
turn the cut-in pressure adjustment
screw [ B ] clockwise to increase the
pressure and counterclockwise to
lessen the pressure.
3. After making your adjustments,
position and re-fasten the cover to the
pressure switch body with the cover
retaining screw.
4. Close the hood, and cycle the
compressor several times to ensure
that the correct pressures are set.
5. If additional adjustments are needed,
repeat steps #1 through #4 until the
correct pressures are set.
5.4.3 RE-TENSIONING AND REPLACING
THE SERPENTINE DRIVE BELTS
The compressor and generator are driven by
the engine using two belts. The belts will
generally not need replacement during the
SECTION 5: MAINTENANCE
PAGE - 45