DeVillbiss Air Power Company MG7-OFTWIN Air Compressor User Manual


 
9 — ENG
INSTALLATION AND BREAK-IN PROCEDURES (cont'd)
RISK OF ELECTRICAL SHOCK. IMPROPER
ELECTRICAL GROUNDING CAN RESULT IN
ELECTRICAL SHOCK. WIRING FOR THIS UNIT
SHOULD BE DONE BY A LICENSED ELECTRI-
CIAN IN ACCORDANCE WITH NATIONAL AND
LOCAL CODES AND ORDINANCES.
This unit was not designed to operate on 208
volts.
Install the compressor as close to the main power supply as
possible. This practice will avoid using long lengths of electrical
wiring for the power supply which can cause power loss to the
motor. When connecting wires, make sure that :
1. The amperage rating of the electrical box is adequate.
Refer to the Specification Chart in the Parts List Manual
for your compressor.
2. The supply line has the same electrical characteristics
(voltage, cycle, phase) as the motor.
This product should be connected to a grounded, metallic,
permanent wiring system, or an equipment-grounding termi-
nal or lead on the product.
Grounding Instructions - Stationary
(permanently mounted) compressors
Electrical wiring must be located away from hot
surfaces such as manifold assembly, compressor
outlet tubes, heads, or cylinders.
Wiring Instructions - Stationary
(Permanently Mounted) Compressors
If your compressor is not equipped with a plug-in type power
cord, perform electrical wiring according to the following in-
structions:
Wiring must be such that full motor nameplate voltage plus or
minus 10% is available at the motor terminals during starting.
Refer to local codes for recommended wire sizes for correct wire
size and maximum wire run; undersize wire causes high amp
draw and overheating to the motor.
OPERATING PROCEDURES
Daily Start-Up Checklist
1. Before attaching air hose or accessories, make sure the
ON/AUTO lever is set to “OFF” and the air regulator or
globe valve is closed.
2. Attach hose and accessories.
TOO MUCH AIR PRESSURE CAUSES A HAZARD-
OUS RISK OF BURSTING. CHECK THE MANUFAC-
TURER'S MAXIMUM PRESSURE RATING FOR AIR
TOOLS AND ACCESSORIES. THE REGULATOR
OUTLET PRESSURE MUST NEVER EXCEED THE
MAXIMUM PRESSURE RATING.
Compressed air from the outfit may contain
water condensation. Do not spray unfiltered air
at an item that could be damaged. Some air
operated tools or devices may require filtered
air. Read the instructions for the air tool or
device.
3. Check the manufacturer’s maximum pressure rating for
air tools and accessories.The regulator outlet pressure
must never exceed the maximum pressure rating. If your
compressor is not supplied with a regulator with gauge,
install one before using accessories.
4. Turn the ON/AUTO lever to “AUTO” and allow tank
pressure to build. Motor will stop when tank pressure
reaches “cut-out” pressure.
WATER WILL CONDENSE IN THE AIR TANK. IF NOT
DRAINED, WATER WILL CORRODE AND WEAKEN THE
AIR TANK CAUSING A RISK OF AIR TANK RUPTURE.
12. After the water has been drained, close the drain valve. The
air compressor can now be stored.
NOTE
If drain valve is plugged, release all air pressure.
The valve can then be removed, cleaned, then
reinstalled.
5. Open the regulator by turning it clockwise. Adjust the
regulator to the correct pressure setting. Your
compressor is ready for use.
6. Always operate the air compressor in well-ventilated
areas; free of gasoline or other solvent vapors. Do not
operate the compressor near the spray area.
When you are finished:
7. Set the “ON/AUTO” lever to “OFF”.
8. Turn the regulator counterclockwise and set the outlet
pressure to zero.
9. Remove the air tool or accessory.
10. Open the regulator and allow the air to slowly bleed from
the tank. Close the regulator when tank pressure is
approximately 20 psi.
11. Drain water from air tank by opening drain valve on
bottom of tank.