23Preventive MaintenancePreventive Maintenance IntervalsAlthough your T5 is designed to be maintenance free, a few tasks arerecommended to increase the useful life of the NuStep. Please follow therecommended preventive maintenance intervals according to the amount ofusage that the NuStep receives. These are estimated intervals and you mayneed to increase or decrease the time period between preventive maintenancedepending on your actual use.I T E M T A S K F R E Q U E N C YArm Clean WeeklyConsole Clean WeeklyCovers and Frame Clean WeeklySeat Clean WeeklyTroubleshootingM A L F U N C T I O N P O T E N T I A L C A U S E C O R R E C T I V E A C T I O NNo heart rate whenwearing chest strapChest strap electrodes arenot wet enough.Wet the belt.User is not wearinga coded chest straptransmitter.Contact NuStep to ordera coded chest straptransmitter.Chest strap transmitterbattery has expired.Contact Polar USA,www.polarusa.com.Chest strap transmitterelectrodes are not directlyin contact with skin.Review instructions forproper location of cheststrap transmitter.No heart rate whenholding contact gripsAcquiring contactheart rate requires 12-15seconds.Hold both grips until aheart rate appears.Varying contact heart rategrip tension or position.Keep a steady even gripon contact heart ratehandles.User is only graspingsensors with one hand.Grasp both sensors.Hands are too wet. Dry hands off.