Operating instructions – VIAIR 280C User Manual
Page 4

(Fig. 2) Compressor
Mounting Hardware
B. Mounting Bolt
C. Flat Washer
D. Locking Washer
E. Nut
H. Vibration Isolator
OPERATING INSTRUCTIONS
1. IMPORTANT: Always operate the compressor at or below the MAXIMUM PRESSURE RATING of
the compressor. Please refer to Application & Specifications Sections of this manual for details.
2. Always observe the MAXIMUM DUTY CYCLE of the air compressor. Refer to Compressor
Application and Specifications Sections of this manual for details. Operation exceeding
maximum pressure ratings and/or duty cycle will result in damage to the air compressor.
3. Your air compressor is equipped with an AUTOMATIC THERMAL OVERLOAD PROTECTOR.
This feature is designed to protect the air compressor from overheating and causing permanent
damage to your air compressor. The thermal overload protector will automatically cut power to
your air compressor should the internal operating temperature of the air compressor rise above
safe levels during excessive use.
4. Should at any time during use, your air compressor automatically shuts off; do not attempt to
restart the air compressor. Turn off power and allow unit to cool for about 30 minutes. This will
allow the Thermal Overload Protector to reset so you can safely resume use of the air compressor.
5. To prevent discharge of your vehicle’s battery, and enhance performance, keep the vehicle’s
engine running while using the compressor.
6. Only operate compressor in well ventilated areas.
7. The use of a relay is strongly recommended for installation of this compressor, but is not included.
(40-amp relay value or higher)
USER MANUAL
280C Air Compressor Kit
RELAY WIRING SCHEMATIC
Pressure Switch
86
Fused
12-Volt
30
To Ground
85
87
Compressor
(+) Lead
(Fig. 3) Leader Hose Bracket
I. Hose Clamp
J. Clamp Release Tab
K. Self Anchoring Pin
B
C
C
D
E
H
REDUCER
I
J
K