10/12/2010
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Company Confidential
LOW AIR VOLUME
• Are the air cleaners clean?
– Check the restriction indicators and service if required
• Are there any leaks in the air pipe work?
• Is the separator element clean?
Company Confidential
OVERHEATING
• Is the oil level correct?
• Is the correct oil grade being used?
• Are there any restrictions in the oil circuit?
– Check the oil cooler restriction
– Check the compressor oil filter
• Is the oil cooler clean?
• Is the oil bypass valve working?
– Check valve operation but never remove it as the oil cooler would be
bypassed
Company Confidential
OVERHEATING
• Is the flow of cooling air re-circulating?
– Orient the machine in the wind direction
– Check the engine speed
– Check the fan and drive belt operation
– Don’t run the machine with the canopy opened
• Is the ambient temperature below the LAT?
• Is the compressor being operated at the correct pressure?
