Air Compressor

causym CAUTION: COMPRESSOR, PIPING AND ACCESSORIES WILL BECOME HOT DURING OPERATION AND CAN CAUSE SERIOUS PERSONAL INJURY. ALLOW TO COOL BEFORE HANDLING. Viton seals can be hazardous to handle (even when cold) if they have been exposed to temperatures in excess of 300°C. Only handle these items when wearing protective gloves.

Regular maintenace is vitally important to ensure the efficient operation of the compressor. The following schedule lists the recommended regular maintenance and the time interval at which it should be carried out.

Maintenance Schedules

Daily:

1. The compressor should be run once a day for at least 15 minutes to prevent moisture from collecting inside. This will reduce the risk of corrosion damage to the compressor and other equipment in the piping.
2. After washing the vehicle, always run the compressor for 15 minutes to remove any water that inadvertently gets into the piping. DO NOT introduce anti-corrosive liquids into the compressor to prevent corrosion. Use of liquids in the compressor will cause failure

Weekly:

1. Inspect and clean air filter. Clean the compressor external surfaces and cooling fins. Inspect DAILY if operating in dirty or severe environment. Check the inlet filter hose for splits and tears. Replace as necessary.
2. Inspect compressor, system piping and components. Clean or repair as necessary.

Monthly:

1. Check the relief valve(s) for wear and proper settings. Replace or adjust as necessary.
2. Inspect the compressor grease seals and replace as necessary.

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3. As conditions require, clean the compressor external surfaces and cooling fins. DO NOT allow cleaning fluids to enter the compressor inlet.

Yearly (1000 Hours):

The inspection items listed should only be carried out by a John Deere dealer and in accordance with the factory maintenance instructions.

1. Check blade length. See also "Quick Blade Inspection" in this section.
2. Check the pressure relief valve(s) for wear and proper settings. Replace or adjust as necessary (should open at max. 2 bar air pressure, check with calibrated pressure gauge fitted to the compressor).
3. Inspect the compressor grease seals and replace as necessary.
4. As conditions require, clean the compressor external surfaces and cooling fins. DO NOT allow cleaning fluids to enter the compressor inlet. For typical applications, repack bearings every 1000 hours using Aeroshel™ #5 grease, or equivalent.

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BLADE INSPECTION

Blades should be inspected every 1000 hours, and replaced if worn below 40 mm (1.57 in.). See quick blade inspection. Replacement may be performed with compressor installed. The compressor should be cleaned before measuring minimum blade length.


A-Minimum Blade Length 40 mm (1.57 in.)

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QUICK BLADE INSPECTION

causym CAUTION: Never inspect the blades while tractor or PTO are running. Disconnect PTO and rotate compressor axle manually in indicated direction.

causym CAUTION: Wear protective gloves when carrying out any maintenance task on the compressor. The compressor, pressure relief valve, air pressure regulator group and air lines can be hot after operation. Do not touch these surfaces to avoid burns.

Viton seals can be hazardous to handle (even when cold) if they have been exposed to temperatures in excess of 300°C. Only handle these items when wearing protective gloves.

NOTE: If the compressor is under a heavy load (operating at more than 2.0 bar) for long periods of time, the blade bearings and seals should be checked every 6 months or 500 operating hours.

The blades can also be inspected without disassembling the compressor using the following procedure:

1. Remove the 1/4" BSP plug on the compressor body.

2. Use a vernier caliper to measure the blade wear as shown in pictures. Also note direction of rotation when inspection is performed.

3. If the measurement of X - Y is greater than 10 mm (0.4 in.), replace the blades.

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