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18

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model no. 299-1978-8  |  contact us 1-800-689-9928

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Unplug the power cord (K).

 

6.

 

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ITEM

DESCRIPTION/REASON

SERVICE 

INTERVAL

Drain 
the tank 

Through normal operation of your air compressor, condensation 
water will accumulate in the tank. To prevent corrosion of the 
tank from the inside, condensation must be drainedat the end of 
every workday. Be sure to wear protective goggles. Relieve the 
air pressure in the system then open the drain valve on the 
bottom of the tank to drain. user cold conditions it is especially 
important to drain the tank after each use to reduce the chance 
of problems resulting from the freezing of condensation water.

Check the 
valve 

 

Pull/activate the safety valve daily to ensure that it is operating
properly and to clear the valve of any possible obstructions.  

Daily

Test for 

leaks

Check that all connections are tight. Small leaks in the tank, 
hoses, connections or transfer tubes will substantially reduce the 
air compressor and tool performance. Spray a small amount of 
soapy water around the area of suspected leaks with a spray 
bottle. If bubbles appear: repair, replace or reseal the faulty 
component. Do not over-tighten any connections. 

Monthly

Storage

Before storing the air compressor, compressor: 

• Drain tank (page 19). 
• Use an air blow gun to clean all dust and debris from the 

compressor. 

• Disconnect and wind up the power cord.
• 

Clean the ventilation openings on the motor enclosure with a 

damp cloth.

• Drain all moisture from the tank.
• Pull the pressure safety valve to release all pressure from the 

tank.

• Cover the entire unit to protect it from moisture and dust.
• Store the air compressor in a clean and dry location.
• In cold weather, store the compressor in a warm building when 

it is not in use. This will reduce problems related to starting the 
motor and the freezing of water condensation. 

Prior to
storing 

NOTE: Refer to instructions on how to drain tank (page 19).  

Daily

Clean the 
air filter 

A dirty air filter will reduce air compressor performance and life. 
To avoid contaminating the pump, the filter should be cleaned 
frequently and replaced on a regular basis. Cean the foam filter 
by immersing it in warm, soapy water. Dry thoroughly after. 

Weekly

To check safety valve. 

 

Before starting compressor, pull the ring on the safety valve (D) to make sure 
that the safety valve operates freely. If the valve is stuck or does not operate 
smoothly, contact a trained service technician. 

To drain tank.

1.

 

Set the pressure switch (C) to the OFF position.

2.

 

3.

 

Turn air pressure regulator (E) counterclockwise to set the outlet pressure to zero.

4.

 

Pull and hold ring on safety valve (D), allowing air to bleed from the tank until air pressure is 
minimized.  

5.

 

Place suitable container under unit to catch water.

Slightly tilt unit and turn drain valve (I) counterclockwise to open.

7.

 

After the water has been drained, close the drain valve (I) (clockwise). The air compressor can now 
be stored.  

 

If any of the following symptoms appears while operating the product, stop using the product immediately 
or serious personal injury could result. Only an authorized service centre should perform repairs on this 
product.   

WARNING!

 

 

Risk of bursting. Water will condense in the air tank. If not drained water will corrode and weaken the air 
tank causing a risk of air tank rupture.

WARNING!

 

 

WARNING!

Risk of bursting. If the safety valve does not work properly, over-pressurization may occur causing air tank 
rupture or an explosion.  

 

NOTE:

 

Allow unit to cool before draining tank. Drain valves (R & Q) become hot during operation.

NOTE:

Troubleshooting problems may have similar causes and solutions.

Disconnect the electrical plug and disconnect any tools from air supply before attempting any adjustment. 

NOTE:

Содержание 299-1978-8

Страница 1: ...UCTION MANUAL IMPORTANT Read and understand this instruction manual thoroughly before using the product It contains important information for your safety as well as operating and maintenance advice MA...

Страница 2: ...TIONS 14 MAINTENANCE 18 TROUBLESHOOTING 20 EXPLODED VIEW 22 NOTE If any parts are missing or damaged or if you have any questions please call our toll free helpline at 1 800 689 9928 SAVE THESE INSTRU...

Страница 3: ...voltage Disconnect from power source before servicing Compressor must be grounded Do not use grounding adaptors 3 RISK OF BURSTING Make sure the regulator is adjusted so that the compressor outlet 4 R...

Страница 4: ...read all labels when you are spraying paints or toxic materials and follow all safety instructions Use a respirator mask if there is a chance of inhaling anything you are spraying Also NEVER directly...

Страница 5: ...or it can be activated manually by pulling the ring on the valve E AIR PRESSURE REGULATOR The regulator is used to adjust the pressure inside the line to the tool that is being used Turn the knob clo...

Страница 6: ...rs Polishers Grease Caulking Guns Before you start This Mastercraft Air Compressor is ideal for a wide range of applications from fastening to greasing and engine cleaning The 11 gallon 41 6 L design...

Страница 7: ...tended use 3 Positioning of the air compressor a Position the air compressor near an electrical outlet b The compressor must be at least 12 31 cm from any wall or obstruction in a clean well ventilate...

Страница 8: ...utes If it fails turn it off immediately and call the toll free helpline at 1 800 689 9928 Please note that breaking in the unit is only required prior to first use 6 After 30 minutes turn off the pre...

Страница 9: ...avoid personal injury always shut off and unplug the unit and relieve all air pressure from the system before performing any service on the air compressor Risk of unsafe operation Unit cycles automati...

Страница 10: ...ll reduce problems related to starting the motor and the freezing of water condensation Prior to storing NOTE Refer to instructions on how to drain tank page 19 Daily Clean the air filter A dirty air...

Страница 11: ...If the pressure switch is defective replace it The compressor s capacity is not enough Check the air requirements of the accessory that is being used If it is higher than the CFM Cubic Feet per Minute...

Страница 12: ...valve Screw ST3 9 X 16F Rear housing Capacitor 200 uF Motor pump assembly If any parts are missing or damaged or if you have any questions please call our toll free helpline at 1 800 689 9928 15 3 1...

Страница 13: ...of the exterior finish such as but not limited to scratches dents paint chips or to any corrosion or discolouring by heat abrasive and chemical cleaners I This warranty will not apply to component par...

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