ULPOWER UL350 Operating Manual
Also see for UL260: Operating manual
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Contents
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Operating Manual ULPOWER UL260,UL350,UL390,UL520M0310: OM 260 - 520A01 Revision No: 00 Date: 2019-04-01 Page: 20 of 22Exceeding of max. admissible cylinder head temperatureReduce engine power setting to the required minimum and verify that CHT drops. Continue normalflight if the CHT drops within the temperature limits. WARNING: If temperature does not drop, carry out emergency/precautionary landing.Any exceeding of the max. admissible CHT has to be entered into the logbook, stating duration andextent of over-temperature condition.On the ground, verify that cooling ducts are still in place and air is free to flow over and throughcylinder head cooling fins. If problem remains, the engine should be sent for inspection/overhaul toa ULPower authorised service-centre.Exceeding of max. admissible oil temperatureReduce engine power setting to the required minimum and verify that oil temperature drops.Continue normal flight if the oil temperature drops within temperature limits. WARNING: If temperature does not drop, carry out emergency/precautionary landing.Any exceeding of the max. admissible oil temperature has to be entered into the logbook, statingduration and extent of over-temperature condition.On the ground, verify that oil level is sufficient and air is free to flow through oil cooler. If problemremains, the engine should be sent for inspection/overhaul to a ULPower authorised service-centre.Oil pressure below minimum WARNING: Oil pressure should be above minimum at all times. If not, shut down the engineimmediately or as soon as possible.In flight, reduce engine power setting and speed to the required minimum and carry outemergency/precautionary landing.Any loss of pressure below the minimum required oil pressure has to be entered into the logbook,stating duration and extent of under-pressure condition.On the ground, verify that oil level is sufficient and that no oil leaks are present. Check that oillines to and from the oil cooler are not twisted/blocked or leaking. If oil cooler and oil lines are notblocked, oil filter should be inspected and changed. If problem remains, the engine should be sentfor inspection/overhaul to a ULPower authorised service-centre.Exceeding of max. admissible oil pressure WARNING: Oil pressure should be below the maximum at all times. If not, shut down the engineimmediately or as soon as possible.Note: At cold start, the oil pressure could be higher for several minutes as the oil is still cold andnot as liquid, resulting in a higher pressure. Nevertheless, the maximum pressures of bothwarm and cold engines should not be exceeded as it indicates a problem with the pressurerelief valve or oil lines/galleries and thus no/improper lubrication.Any exceeding of the max. admissible oil pressure has to be entered into the logbook, statingduration and extent of over-pressure condition.On the ground, verify the oil level. Check pressure relief valve. If problem remains, the engineshould be sent to a ULPower authorised service-centre for inspection/overhaul. |
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