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MAINTENANCE  & TROUBLESHOOTING

TROUBLE

No start condition

Low pressure

Safety valve releasing

Tank pressure drops

when compressor 

shuts off

Excessive moiture 

coming out of air hose

POSSIBLE CAUSE

Fuse blown or circuit breaker tripped
Loose electrical connections
Overheated motor

Air leak in safety valve

Defective check valve

Defective pressure switch or 
improper adjustment

Loose drain valve
Loose connections at regulator or
pressure switch

Excessive water in the tank
Humidity too high

CORRECTIVE ACTION

Check for cause of blown fuse/breaker and replace
Check wiring connections
Turn compressor off, wait until total cool-down before restarting

Check valve manually by pulling upwards on ring. If condition
persists replace valve
Replace check valve

Check for proper adjustment and if problem persists, replace
pressure switch

Tighten drain valve
Check connections for leaks, seal with Teflon tape

Drain tank through drain valve
Move compressor to area of less humidity. Risk of electric
shock!

TROUBLE SHOOTING

MAINTENANCE

Before doing any maintenance or adjustments to your air compressor, the following safety precautions should be taken:
- Disconnect electrical power.
- Release air tank pressure.

Daily or before each use:

1. Drain condensation from tank.
2. Check for any unusual noise or vibration.
3. Be sure all nuts and bolts are tight.

KEEP TOOL CLEAN

Periodically blow out all air passages with dry compressed air. Clean all plastic parts with a soft damp cloth. NEVER  use solvents to clean
plastic parts. They could possibly dissolve or otherwise damage the material.

CAUTION

: Wear safety glasses while using compressed air.

FAILURE TO START

Should your compressor fail to start, check to make sure the prongs on the cord plug are making good contact in the outlet. Also, check
compressor fuse or tripped circuit breakers in the line.

Summary of Contents for 8438

Page 1: ...INSTRUCTION MANUAL COPYRIGHT 2014 ALL RIGHTS RESERVED BY KING CANADA TOOLS INC MODEL 8438 OIL FREE AIR COMPRESSOR KIT 05 2014 ...

Page 2: ...nd lack of maintenance King Canada shall in no event be liable for death injuries to persons or property or for incidental special or consequential damages arising from the use of our products To take advantage of this limited warranty return the product at your expense together with your dated proof of purshase to an authorized King Canada service center Contact your retailer or visit our web sit...

Page 3: ... the compressor when it is operating RISk OF bURSTINg WHAT CAN HAPPEN 1 Failure to properly drain condensed water from the tank causing rust and thinning of the steel tank 2 Modifications or attempted repairs to the tank 3 Unauthorized modifications to the unloader valve safety valve or any other components which control tank pressure 4 Excessive vibration can weaken the air tank and cause rupture...

Page 4: ...ordance with all local codes and ordinances WARNING TO MAINTAIN PROPER GROUNDING DO NOT REMOVE OR ALTER THE GROUNDING PRONG IN ANY MANNER 120V OPERATION As received from the factory your compressor is ready to run for 120V operation This machine is intended for use on a circuit that has an outlet and a plug which looks like the one illustrated in Fig 1 WARNING DO NOT USE A TWO PRONG ADAPTOR FOR TH...

Page 5: ... desired then bring it up to the desired pressure Depending on the air requirements of each particular accessory the outlet regulated air pressure may have to be adjusted while operating the accessory OUTLET PRESSURE GAUGE B FIG 4 The outlet pressure gauge indicates the air pressure available at the outlet side of the regulator The pressure is controlled by the regulator and is always less than or...

Page 6: ...nstall Teflon Tape not supplied on the threads at both ends of the coil hose WARNING Too much air pressure causes a hazardous risk of bursting Check the manufacturer s maximum pressure rating for air tools and ac cessories The regulator outlet pressure must never exceed the maximum pressure rating of the tool being used 3 Turn the switch to the On position and allow tank pressure to build Motor wi...

Page 7: ... pressure switch Tighten drain valve Check connections for leaks seal with Teflon tape Drain tank through drain valve Move compressor to area of less humidity Risk of electric shock TROUBLE SHOOTING MAINTENANCE Before doing any maintenance or adjustments to your air compressor the following safety precautions should be taken Disconnect electrical power Release air tank pressure Daily or before eac...

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