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Trouble Shooting Blowers <br /> How to spot blower trouble <br /> Trouble Cause Reasons <br /> Lack of performance. Loss of RPM. V-belts worn or loose. <br /> Restricted inlet. Clogged or undersized filter. <br /> Excessive slip. Rotor tips worn. <br /> Leaking pressure or vacuum Worn seats or incorrect setting. <br /> relief valve <br /> Unusual noises. Rotors making contact with Excessive pressure ratio. <br /> case, end plates or each Failing bearings or gears. <br /> other. <br /> Leaking oil. Seals failing. Excessive pressure ratio and <br /> Oil Foaming. temperatures. <br /> Improper oil spec. or overfilling. <br /> Seal vent holes plugged <br /> (17146 Series only). <br /> Over heating. Loss of RPM. Worn or loose V-belts. <br /> Restricted inlet. Clogged or undersized filter. <br /> Excessive slip. Rotor tips worn. <br /> Over pressure. Pressure relief valve setting incorrect. I <br /> High vacuum. Vacuum relief valve setting incorrect <br /> or restricted discharge. <br /> Failing bearings Using incorrect oil. Instructions on page 5 or <br /> and/or gears. contact factory. <br /> Low or high oil levels. Check levels as required. <br /> Oil temperatures too high. Excessive pressure ratio and RPM. <br /> Infrequent oil changes:. Instructions on page 5. <br /> I <br /> I <br /> E <br /> s i <br />