SUMMER is upon us with a vengeance this year and now is a good time to:
Check all of the cooling fans inside and out of your machine, including the ones hidden behind amplifiers and control circuits. Again most standard fans can be replaced by anyone but ones which are soldered to the rear of drive amps should be done by professionals.
Also check all of the filters and motor fans, Oil chillers and hydraulic radiators before the onset of heat. Make sure that all chillers are properly charged with refrigerant. If you have not changed your oils now is a good time to do it.
Check your lube completely and grease all fittings and chains if any. Give your machine that long overdue cleaning. This is not time to have your machine broken or not running at its best. High humidity and high temperatures can cause strange things to happen.
If the machine workshop temperature goes too high the machine might stop working or control might stop responding. Watch your hydraulic systems. If the hydraulic oil gets to hot the machine working will surely suffer. Electronic components of many commercial and industrial systems are temperature dependent. Inside these electronic components (including power supplies, electronic motor drives and PLC’s, are electronic parts which only function properly within specified temperature ranges.These ranges are considered by the manufacturer of the electronic component in obtaining a temperature rating for the component. Common temperature ranges include 32 to 104 degrees F, 32 to 122 and 32 to 140F. Exceeding these temperature ranges (either above or below) can cause unexplained problems. For example, the component may produce a fault code suggesting a component failure like internal error, memory error or processor fault. However, upon returning the component to the manufacture and subsequent testing the device is reported as “NO PROBLEM FOUND” by the test department went tested at room temperature. This is because many of these problems are ‘temporary’ or self-curing’ and vanish when the component is returned to the proper temperature range.Electronics:
Forced ventilation of the enclosure is perhaps the simplest solution. However, there are add on ventilators that could be used.

Drain the hydraulic fluid out of the system. Unscrew the cap on the bottom of the tank, and allow the oil to drain into a large plastic container. Make sure the system is off and is completely cool before beginning.
Check the status of reservoir. The rigid baffles on the wall are designed to maximize the surface area that will absorb the heat. If there is residue or sediment caking or clogging the baffles, the amount of heat being absorbed will not be sufficient for your system. Clean out the baffles with a wire brush.
Examine the heat exchanger. The heat exchanger should resemble a radiator of sorts, with criss-crossed tubing connected to aluminum fins. If the fins are constricted, then heat transfer will be reduced, raising the temperature of the fluid. Manually space the fins out if necessary. Depending on the type of heat exchanger you have, the amount of necessary space may vary. Locate the model number and consult an expert at a parts store for information on your specific exchanger. As a rule, none of the fins should be touching each other.

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Exair Cabinet coolers:


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3047 Brentmoor Dr./St. Charles, Missouri 63303/ phone: 636.939.3827 / email: