Harbor Freight Tools 42321 Air Compressor User Manual


 
SKU 42321 For technical questions, please call 1-800-444-3353. Page 5
cause damage to the equipment and void its warranty. Refer to the
“Operating
Instructions”
section for details on filling the Air Compressor with oil.
2. When filling the Air Compressor with oil, make sure to
unscrew
(do not pull) the
Oil Fill Cap to remove.
3. Use eye and ear protection. Always wear ANSI-approved safety impact eye goggles,
and ear plugs when using the Air Compressor.
4. Make sure all tools and equipment used with the Air Compressor are rated to the
appropriate air pressure capacity of the Air Compressor. Do not use any tool or
equipment that does not operate from 0-115 PSI. If necessary, check the owner’s manual
of the tool or equipment for its air pressure rating.
5. Always disconnect the Air Compressor from its electrical outlet, release any
remaining air pressure from the unit, and disconnect all pneumatic tools and
equipment from the unit, before performing any services or maintenance.
6. Avoid injury. Never direct the air jet at people or animals.
7. Inspect safety valve daily. If the safety valve is not working properly, tank pressure can
build up to dangerous levels. The tank could explode. For this reason, pull the ring on
the safety valve before each use and verify that it operates freely. Replace safety valve
if it does not operate freely.
Never remove or alter the factory sealed Safety Release Valve.
8. Do not attempt to readjust the automatic start and shutoff valves. Any change to
the automatic ON/OFF pressure levels will cause additional stress on the motor, which
may result in shortened motor life.
9. Drain the Air Compressor’s air tank every day. Do not allow moisture to build up
inside the Air Tank.
10. Do not unscrew the tank drain valve so that
more than
four threads are showing.
11. Avoid risk of tank explosion.
a) Avoid weakening of tank by draining condensation after each use.
b) Never modify tank by drilling holes, welding to it, or modifying it’s parts.
c) The tank is designed, and factory set, to operate within a specific pressure range.
For that reason, never make adjustments to, or substitute parts, to the compressor.
12. Avoid bodily injury from moving parts. The compressor cycles on automatically,
without notice. For this reason, always keep hands and arms away from compressor
parts when the unit is connected to electrical power. Always have compressor safety
guards in place before turning compressor on.
13. Use approved air hose. Never use plastic or PVC pipe (unless specified for Air
Compressors) to carry air under pressure. Regardless of its pressure rating, it can burst
under pressure. Use only metal pipe.
14. Never plug the power cord of this product into an electrical outlet while standing
on a wet or damp surface.