MAKITA MAC2400 (01) PDF Document

The technical specifications for the MAKITA MAC2400 are as follows:

To prevent the risk of the air tank bursting on the MAKITA MAC2400, follow these guidelines:

Drain the tank DAILY or after each use. If the tank develops a leak, replace it immediately with a new tank or new compressor unit. Failure to properly drain condensed water causes rust and thinning of the tank wall.

Never drill into, weld, or make any modifications to the tank or its attachments. Never attempt to repair a damaged or leaking tank. Replace with a new tank.

Do not make adjustments or parts substitutions to alter the factory-set operating pressures. The tank is designed to withstand specific operating pressures.

Exceeding the pressure rating of air tools, spray guns, air-operated accessories, tires, and other inflatables can cause them to explode. To prevent this:

1. Follow the equipment manufacturer’s recommendation and never exceed the maximum allowable pressure rating of attachments.

2. Never use the compressor to inflate small low-pressure objects such as children’s toys, footballs, basketballs, etc.

3. For essential control of air pressure, you must install a pressure regulator and regulated air pressure gauge to the air outlet of your compressor.

The MAKITA MAC2400 is recommended to be operated on not more than a 50% duty cycle. This means an air compressor that pumps air more than 50% of one hour is considered misuse because the air compressor is undersized for the required air demand.

Before storing the MAKITA MAC2400, perform the following steps:

1. Review the “Maintenance” and “Operating Procedures” sections and perform necessary maintenance. Be sure to drain water from the air tank.

2. Protect the electrical cord and air hose from damage (such as being stepped on or run over).

3. Store the air compressor in a clean and dry location.

Drain Valve: Located at the bottom of the air tank, it is used to drain condensation at the end of each use.

Motor Thermal Overload Protector: A manual protector that shuts off the motor if it overheats. You must turn the pressure switch to “off,” wait for the unit to cool, and push the reset button to restart.

On/Auto – Off Switch: Turns the unit “on” to provide automatic power to the pressure switch and “off” to remove power.

Air Intake Filter: Cleans air coming into the pump. Must be kept clean and free from obstructions.

Check Valve: Open when operating to allow air into the tank; closes when “cut-out” pressure is reached to keep pressure in the tank.

Pressure Switch Unloading Valve: Automatically releases compressed air from the compressor head and outlet tube when “cut-out” pressure is reached.

Pressure Switch: Automatically starts the motor when tank pressure drops to “cut-in” pressure and stops it when it reaches “cut-out” pressure.

Safety Valve: Pops out to protect against high pressure if the pressure switch fails to shut off the compressor.

Regulator: Controls the air pressure coming from the air tank. Turn clockwise to increase pressure and counter-clockwise to decrease.

Locate the MAKITA MAC2400 in a clean, dry, and well-ventilated area. Ensure the air filter is kept clear of obstructions. The compressor should be located at least 12 inches away from the wall or other obstructions that will interfere with the flow of air. If humidity is high, an air filter can be installed on the air outlet adapter to remove excessive moisture.

CAUTION: Do not attempt to operate the air compressor without first adding oil to the crankcase. Follow these steps:

1. Open the air receiver’s drain valve.

2. Plug the power supply cord into the correct power source.

3. Run the compressor for a minimum of twenty (20) minutes in the no-load condition to lubricate the bearings and pistons, and to seat the piston rings.

4. Close the air receiver drain valve. Your compressor is now ready for use.

To avoid voltage drop and motor overheating, use extra air hose instead of an extension cord if possible. If an extension cord must be used, use only an approved 3-wire cord with a 3-blade grounding plug and 3-slot receptacle. Refer to the following chart for minimum requirements:

1. Before attaching air hose or accessories, make sure the pressure switch lever is set to “OFF” and the air regulator or shut-off valve is closed.

2. Attach hose and accessories. Check the manufacturer’s maximum pressure rating for air tools and accessories. The regulator outlet pressure must never exceed the maximum pressure rating.

3. Turn the pressure switch lever to “ON/AUTO” and allow tank pressure to build. The motor will stop when tank pressure reaches “cut-out” pressure.

4. Open the regulator by turning it clockwise. Adjust the regulator to the correct pressure setting.

5. Always operate the air compressor in well-ventilated areas, free of gasoline or other solvent vapors.

1. Set the pressure switch lever to “OFF”.

2. Using the air tool or accessory, bleed the tank pressure down to zero.

3. Remove the air tool or accessory.

4. Drain water from the air tank by opening the drain cock valve on the bottom of the tank. If not drained, water will corrode and weaken the air tank.

5. After the water has been drained, close the drain valve. The air compressor can now be stored.

Daily (or before each use):

1. Drain water from the air tank, any moisture separators, or transformers.

2. Check for any unusual noise and/or vibration.

3. Manually check all safety valves to make sure they are operating properly.

4. Inspect air filter, replace if necessary.

5. Inspect air lines and fittings for leaks; correct as necessary.

Each year of operation or if a problem is suspected:

1. Check condition of air compressor pump intake and exhaust valves.

2. Check condition of check valve. Replace if damaged or worn out.

Filling with oil:

1. Remove the oil filler plug.

2. Slowly pour the proper oil into the pump crankcase.

3. Always keep the oil level in the middle of the sight glass.

Changing the oil (Every 300 hours or 3 months, whichever comes first):

1. Remove the oil drain plug. Allow oil to drain completely.

2. Replace the oil drain plug (The use of a sealing compound or Teflon tape to avoid leakage is recommended).

3. Refill with the recommended oil to the proper level.

Refer to the following chart for oil viscosity recommendations based on ambient temperatures:

Note: Multi-Viscosity motor oils, like 10W30, should not be used in an air compressor.

1. Release all air pressure from the air tank and unplug the outfit.

2. Remove the shroud.

3. Loosen the top and bottom nut of the outlet tube and remove it.

4. Remove the pressure release tube and fitting.

5. Unscrew the check valve (turn counterclockwise) using a socket wrench.

6. Check that the valve disc moves freely inside the check valve. The check valve may be cleaned with a suitable solvent.

7. Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise).

8. Replace the pressure release tube and fitting.

9. Replace the outlet tube and tighten top and bottom nuts.

10. Replace the shroud.