Adirtyair fllterwill not allowthe compressortooperateat full capacity. Beforeyou usethecompressor, checkthe airfilter to be sure it isclean.
tf itisdirty, mmovethescrewsand filter retainer. Pulloutthe filter, mplacewith new.
Oil - Checking and Changing
Overfilling with oil will cause premature com- pressor failure. Do not overfill.
Check oil level in the crankcase daily. The oil level should
beeven withthetopofthefill hole and must not,beallowed tobelowerthan3/8" fromthetop (6threads)at _nytime. It isrecommendedthatthe oil bechanged afterevery 100hours of operation.Todrainthe oil, removethe oildrain plug and collecttheoilin asuitable container. Besureto replacethe plug securelybeforeadding newoil. Useaspecialcompressor oil such as Sears
Air Tank - Draining Water
WATER WILL CONDENSE IN THE AIR TANK. IF
NOT DRAINED, THE WATER WILL CORRODE AND WEAKEN THE AIR TANK CAUSING A RISK OF AIR TANK RUPTURE.
Watershould be drained from the airtankaftereach use.
Operatethe unittoapply
the airtank. Closethe drain cocktightly.
NOTE
If drain cock valve is clogged, release air pressure in air tank. The drain cock valve can then be removed,
cleaned and reinstalled.
Check Valve - Inspection and
Replacement
Remove the checkvalve for inspection or r_placement if air tank pressure will not build up. Use the following procedure to inspect, clean or replace the checkvalve.
1.Release air pressure fromthe air tank.
2.Loosen thetop and bottom nuts and removethe outlettube.
3.Unscrewthe checkvalve (turn counterclockwise) using a7/8" diameter 1/2" socketwrench.
4.Check that the valve disc moves freely inside the checkvalve and thatthespring holdsthediscin the
upper, closed position. The check valve may be cleaned with a solvent.
5.Apply sealant tothe checkvalve threads.Reinstall the check valve (turn clockwise). The valve stem should still move freely- do not over tighten.
6.Replacethe outlet tube andtighten top and bottom nuts.
Safety Valve - Inspection
IF THE SAFETY VALVE DOES NOT WORK PROP-
ERLY
OCCASIONALLY PULL THE RING ON THE SAFETY VALVE TO MAKE SURE THAT THE SAFETY VALVE OPERATES FREELY. IF THE VALVE IS STUCK OR DOES NOT OPERATE SMOOTHLY, IT MUST BE REPLACED WITH THE SAME TYPE OF VALVE.
Motor
The motor hasa thermal overload protector. If the motor overheats for any reason,theovedoad protectorwillshutoff the motor.The motor mustbeallowedtocoeldown before
powersupply.
NOTE
If the overload protector shuts the motor off
frequently, checkfora possiblevoltage problem. Low voltage can also be suspected when:
1.the motor does not get up to full power or speed;
2.fuses blow out when the motor is started;
3.lights dim when motor isstartecland remain dim while it is running.
Belt - Replacement
SERIOUS INJURY OR DAMAGE MAY OCCUR IF
PARTS OF THE BODY OR LOOSE ITEMS GET CAUGHT IN MOVING PARTS. NEVER OPERATE THE COMPRESSOR WITH THE BELT GUARD REMOVED. THE BELT GUARD SHOULD BE RE-
MOVED ONLY WHEN THE POWER TOTHE COM- PRESSOR IS DISCONNECTED.
The motor ismounted on an adjustable motor base.
To replace belt:
1.Turn offand lockout powersource.
2.Remove screwsfrom the back ofthe belt guard.
3.Loosenthe four motor mounting screws.
4.Slidethe motor toward the compressorpump.
5.Remove belt and replace.
g