Craftsman 919.17673 - Manual (Page 11)

NOTE
if the overload protector shuts the motor off fre­
quently, check for a possible voltage 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 is started, and remain
dim while it is running.
Belt - Replacement
WARNING ]
SERIOUS INJURY OR DAMAGE MAY
OCCUR IF P A R T S OF THE BODY GR LOOSE
¡J E M S GET CAUGHT M MOViNG PARTS.
MEVER OPERATE THE OOTFiT WITH THE
BELT GUARD REMOVED. THE BELT GUARD
SHOULD e-E REMOVED ONLY WHEN THE
COMPRESSOR IS
To Replace Belt:
1. Unplug compressor.
2. Remove the front of the belt guard by disengaging the
snaps, insert a fiat biaded screwdriver at each snap
location and pry the beitguard apart.
3. The motor is mounted on a special base. By loosening
the wing nut at the motor hold down plate, the motor
can be tilted to allow for easy removal of the belt.
4. Remove belt and replace.
NOTE
The belt must be centered over the grooves on
the flywheel and motor pulley.
5. Tighten the wing nut until It makes contact with the
washer plus one additional turn.
6 . Replace the front of the beitguard.
To Adjust Belt Tension:
Tighten the wing nut until it makes contact with the
washer plus one additional turn.
Pulley and Flywheel - Alignment
The compressor flywheel and motor pulley grooves
must be in-line {in the same plane) within
1
/32" to assure
belt alignment within grooves. To check alignment, dis­
connect electrical power and remove the beitguard.
Place a straightedge against the outside of the flywheel
and measure the distance from it to the nearest groove.
Alignment is achieved when the other end of the straigh­
tedge is within 1/32" of the measured dimension at the
pulley grooves.
STORAGE
Before You Store The Air Compressor:
1 . Review the “Maintenance” section on the preceding
page and perform maintenance as necessary. Drain
the water from the air tank.
2. Set the OFF/AUTO switch to the “OFF" position, and
unplug the unit.
TROUBLESHOOTING GUIDE
3. Remove the air tool or accessory.
4. Protect the electrical cord and air hose from damage
(such as being stepped on or run over}. Wind them
loosely around the outfit handle.
5. Store the compressor in a clean and dry location.
WARNING 1
FEnFOPMIf-iG 5T£PA!RS EXPOSE VOLTAGE SOURCES, MOVilsG FARTS, OR COMPRESSED
AIR SCURCES. PERSONAL hUIURY MAY OCCUR. PRIOR TO A J T E P M P im G A M T REPAIRS THE
COMPRESSOR MUST BE UNPLUGGED, AND AiR TANK PRESSURE RELIEVED. NEVER OPERATE
THE UNIT WITH THE BELT GUARD REMOVED.
PROBLEM CAUSE CORRECTION
Excessive tank pressure -
safety valve pops off. Pressure switch does not shut off
motor when compressor reaches
“cut-out” pressure. Move the pressure switch lever to the “OFF” posi­
tion. if the outfit doesn’t shut off, and the electrical
contacts are welded together, replace the pressure
switch.
!f the contacts are good, check to see if the pin in
the bottom of the pressure relief valve is stuck, if it
does not move freely, replace the valve.
Pressure switch “cut-out” too
high. Return the outfit to the Sears Service Center to
check and adjust or replace switch.
Air leaks at fittings Tube fittings are not tight enough. Tighten fittings where air can be heard escaping.
Check fittings with soapy water solution. DO NOT
OVER-TIGHTEN.