Craftsman 919.17673 - Manual (Page 10)

WAiNÎNG
J
WAT£ft mti comEHSE m the air
IF MOT CHAINED, WATER WILL CORRODE
Af^D WEAKEN THE AIR TANK, CAtJSir^G 4
BISK OF AIR TAI-IK RUPTOBE.
11. With tank pressure at approximately 20 psL, open
the drain cock (key 43, pg. 14) and allow moisture to
drain. Turn drain T-handie counterclockwise to open.
The drain cock is located under the outfit near the
leg without the wheels. (See pg.
6 .)
NOTE
If the drain cock valve is plugged, release all air
pressure. The valve can then be removed,
Scteaned, and reinstalled.
12. After the water has been drained, close the drain
cock (turn clockwise). The air compressor can now
be stored.
MAINTENANCE
W A R N I N G
1
UNIT CYCLES AUTOMATICALLY WHEN POWER IS QH. WHEN DOING MAiNTEMAisICE, VOO
BE EXPOSED TO VOLTAGE SOURCES. COMPRESSED AiP. OR MQWm PARTS. PERSDHAL
INJURIES CAN OCCUR. BEFORE PERFORMiNG MAINTENANCE OR REPAIR UNPLUG THE U U l'T
AND BLEED OFF ALL AIR TANK PRESSURE. NEVER OPERATE THE UNIT WITH THE BELT
GUARD REMOVED.
Air Compressor
A dean air compressor runs cooler and provides longer
service. Clean or blow off fins and any other parts of the
air compressor that collect dust or dirt. Do not place
rags, containers or other material on or against the venti­
lation openings in the belt guard. Adequate ventilation is
necessary to maintain proper air compressor operating
temperature.
Air Filter - inspection and Replacement
NOTE
Keep the air filter clean at all times. Do not oper­
ate the compressor with the air filter removed.
A dirty air filter will not allow the compressor to operate
at full capacity. Before you use the compressor, check
the air fitter to be sure it is dean.
If it is dirty, replace it with a new filter. The filter may be
removed by using a pair of needle nosed pliers or a
screwdriver. Puli or pry out the old filter. Push in the new
air filter.
Oil - Checking and Changing
CAUTION
ounces.) Under extreme winter conditions use SAE
low.
Multi-viscosity oil (10W30) will leave carbon
deposits on critical components which will reduce per­
formance and compressor life.
Check Valve - Replacement
1 • Release air pressure from the air tank.
2
. Loosen the top and bottom tube nuts and remove the
outlet tube.
3. Unscrew the check valve (turn counter-clockwise)
using socket wrench.
4. Check that the valve disc moves freely and that the
spring holds the disc in the upper, closed position.
The check valve may be cleaned with a solvent such
as paint thinner or carburetor cleaner.
5- Apply sealant to the check valve threads. Reinstall the
check valve (turn clockwise). Do not over tighten.
6. Replace the outlet tube and tighten top and bottom
tube nuts.
Safety Valve - inspection
WARNING ]
Overfilliog with oil will cause premature
compressor failure. Do not overfill.
Check oil level in the crankcase daily. Remove the oil fill
plug (Key no. 81, pg. 15). The oil level should be even
with the top of the fill hole and must not be allowed to be
lower than %" from the top
(6
threads) at any time. It is
recommended that the oil be changed after every 100
hours of operation. To drain the oil, remove the oil drain
plug and collect the oil in a suitable container. Be sure to
replace the plug securely before adding new oil. Use a
special compressor oil such as Sears 9-16426 or SAE
20-20W SF motor oil. (Crankcase oil capacity is 16 fluid
IF THE SAFETY VALVE DOES MOT WORK
PROPERLY OVER-PRESSURIZATSOM MAY
OCCUR, CAUSING AIR TANK RUPTURE OR
EXPLOSION. OCCASiONALLV PULL THE
RING ON THE SAFETY VALVE T'O MAKE
SURE THAT THE SAFETY VALVE OPER­
ATES FREELY IF THE VALVE iS STUCK OP
DOES i^OT OPERATE SMOOTHLY IT MUSI-
BE REPLACED WITH
A VALVE HAVIHG THF
SAME PRESSURE R m U G .
Motor
The motor has a manual thermal overload protector. If
the motor overheats for any reason, the overload protec­
tor will shut off the motor. The motor must be allowed to
cool down before restarting. Turn the unit off. To restart,
depress the red reset button located on the end of the
motor and turn the unit on.
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