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

OPER

ATING INSTRUCTIONS

OPER

ATING INSTRUCTIONS

 

 

 

 

 

WARNING!

Risk of bursting. Too much air pressure causes a hazardous risk of bursting. Check the manufacturer’s 
maximum pressure rating for air tools and accessories. The regulator outlet pressure must never exceed 
the maximum pressure rating. 

 

 

If the pump has been transported or turned upside down (even partially), allow the pump to sit in a normal, 
upright position for approximately 10 minutes before starting.    

 

High temperatures are generated by the electric motor and the pump. To prevent burns or other injuries, 
DO NOT touch the air compressor while it is running. Allow it to cool before handling or servicing. Keep 
children away from the air compressor at all times.   

WARNING!

WARNING!

 

 

 

 

 

CAUTION!

Escaping air and moisture can propel debris that may cause eye injury. Wear safety goggles when opening the 
drain valve. 

WARNING!

To 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 automatically when power is on. When performing maintenance you may be 
exposed to voltage sources or compressed air. Disconnect power source from the compressor and bleed off all 
air pressure. 

WARNING!

Before each start-up

1.

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

2.

Turn the air pressure regulator knob (E) counterclockwise until it stops.

3.

Attach hose and accessories.

How to start

1.

Close the tank drain valve (I).

2.

Plug in the power cord (K).

3.

Set the pressure switch (C) to the ON position and allow tank pressure to build. Motor will 

stop when tank pressure reaches “cut-out ” pressure.

4.

Turn the air pressure regulator (E) counterclockwise until it stops.

5.

The compressor is ready for use.

How to shut down

1. Set the pressure switch (C) to the OFF position. 
2. Unplug the power cord (K).
3. Reduce the pressure in the tank through the outlet hose. Pulling the safety valve (D), and keeping it open

,

 

will also reduce the pressure in the tank.   

Summary of Contents for 299-1978-8

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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