Product Manual

Manually Draining an Air Tank:
Step 1) Disconnect & lockout the compressor from the power source
(electric models) or disconnect the spark plug wire from the
spark plug (gas engine models).
Step 2) Tank(s) subjected to freezing temperatures may contain ice.
Store the compressor in a heated area before attempting to
drain moisture from the tank(s). Reduce the air pressure in
the tank to 30 PSIG by pulling the pressure relief valve ring.
Step 3) Slowly open the drain valve and allow the moisture and air
mixture to drain from the tank.
Step 4) Once the moisture has been completely drained, close the
drain valve.
Air Tank Inspection
Tank
Capacity
Horizontal or
Vertical
Minimum
Allowable Wall
Visually
Inspect
Hydrostatically
Inspect
HEAD
SHELL
8 Gal.
Horizontal
0.096
0.094
Yearly
10 Years
8 Gal.
Twin Horiz.
0.098
0.098
Yearly
10 Years
10 Gal.
Twin Horiz.
0.118
0.118
Yearly
10 Years
20 Gal.
Horizontal
0.094
0.094
Yearly
10 Years
26 Gal.
Vertical
0.094
0.094
Yearly
10 Years
30 Gal.
Horizontal
0.109
0.098
Yearly
10 Years
Recommended Air Tank Inspection Intervals
The factory recommends that all air tanks be inspected at scheduled intervals. Refer to
Recommended Air Tank Inspection Intervals Table for relative information.
Refer to federal, state or provincial, or local codes for mandatory air tank maintenance
information.
Belt alignment and adjustment
Drive belts tend to stretch with normal use and require adjustment periodically (check monthly). In
order to adjust the drive belt the belt guard must be removed.
Check the belt alignment by placing a straightedge against the face of the flywheel, touching its rim
at two places. Adjust the flywheel or motor pulley so that the belt runs parallel to the straightedge.
Use a wheel puller to move the motor pulley on the shaft.
Properly adjusted, a 3 pound pressure applied to the belt between the motor pulley and the
compressor flywheel will deflect the belt about 1/4" (6mm). To adjust the belt tension, loosen the 4
motor mounting screws and slide the motor in the proper direction. Retighten the motor mounting
screws