Harbor Freight Tools 67708 operating instructions Oil Maintenance, Draining Moisture from the Tank

Models: 67708

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Oil Maintenance

Oil Maintenance

Check the oil periodically for clarity. Replace oil if it appears milky or if debris is present, or every 6 months, or 100 hours of runtime, whichever comes first. In harsh environments such as high heat or high humidity, you will need to replace the oil more frequently.

WARNING: Risk of personal injury hazard. Allow Air Compressor to cool before changing the oil.

To drain the oil from the Pump Crankcase (39):

a. Place a container under the Drain Plug (35).

b. Remove the Oil Breather Plug (37) to allow air flow into the Pump.

c. Remove the Drain Plug, allowing the oil to drain into the container.

d. When the oil is completely drained from the Pump, replace the Drain Plug.

e. Fill the Pump with new compressor oil to the FULL level on the Oil Sight Glass.

f.Replace and tighten the Oil Breather Plug.

g.Discard the old oil according to local, state and federal regulations.

Draining Moisture from the Tank

The Drain Valve (66) is located under the Tank (70). It must be accessed daily to release all trapped air and moisture from the Tank. This will eliminate condensation which can cause tank corrosion.

Note: Do not open the Drain Valve so that more than four threads are showing.

To empty the air and condensation:

a. Make sure the Power switch of the compressor is off.

b. Place a collection pan under the Drain Valve.

c. Unthread the Drain Valve clockwise two or three turns ONLY.

d. When all the pressure and moisture is released, close the Drain Valve.

Air Filter Maintenance

Check the Air Filter weekly to see if it needs replacement. If working in dirty environments, you may need to replace the filter more often. To replace the Air Filter:

a. Unthread the Air Filter counterclockwise. b. Replace with a new Air Filter.

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For technical questions, please call 1-800-444-3353.

SKU 67708

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Harbor Freight Tools 67708 operating instructions Oil Maintenance, Draining Moisture from the Tank, Air Filter Maintenance