Nilfisk-Advance Warrior ST Service Manual

Also see for Warrior AXP: Service manual Instructions for use Sevice manual

Contents

Electrical SystemService Manual – Warrior ST, AXP, EcoFlex 38Electrical SystemFunctional DescriptionThe Warrior machine is powered using six,6-volt batteries connected in series, for a totalsystem nominal voltage of 36 volts To protectthe batteries from over discharge, the systemis protected with a 150 amp fuse (F1). Withthe exception of the optional on-board batterycharger, all other connections are downstreamfrom this main fuseThere are 2 circuit breakers that protect theelectronics. The keyswitch (S3), Warriorcontroller (A1), Brush motor contactor coil(K1), Vacuum motor contactor coil (K2),Solution solenoid (L1), and optional Recyclesolenoid (L2) are protected with a 5 amp resettable circuit breaker (F2). The Curtis Drive controller isprotected with a 30 amp resettable circuit breaker (F3). If these circuit breakers trip, their respective buttonwill pop up. Pressing the button back in after the overload has cleared will reset the breaker.When the optional on-board battery charger is present, the battery-side of the (F2) fuse is replaced withan interlock circuit from the charger. (Power to the fuse comes through the charger.) This interlock featureallows the charger to disable all control of the machine when the charger is plugged into a wall outlet andthe battery is being charged. The charger doesn’t disable all power to the machine; just the control power.Description Of The Low-Voltage Cutout FeatureThe warrior machine is equipped with a low-voltage cutout feature to prevent over-discharging of thebatteries. When the machine’s battery voltage falls below the defined threshold, the scrub system isautomatically shut down The voltage cutout level is adjustable for different battery types The standardlead acid battery (wet cell) setting is 30.96 volts, and the alternate (gel cell) setting is 32.58 volts. Thestandard setting is factory selected and should be used unless the battery manufacturer specifies the highercutout voltage Note: A minimum recharge voltage of 38.6 volts must be reached to allow the low-voltagecutout system to reset once activated.Description Of The Battery Condition IndicatorsThe Battery Condition Indicator will give an indication of the state of chargeof the batteries based on the voltage of the batteries. The Warrior ST displayhas three colored LED’s (3) showing 5-levels of voltage. The Warrior AXP/EcoFlex display has 5 vertical bars (1) showing 6-levels of voltage. When thelow-voltage cutout is active, the charge symbol (2) will be shown, or the redLED will flash. These levels are summarized in the tables below.AXP/EcoFlex Display ST DisplayDisplay Standard Alternate Display Standard Alternate5 bars 36.1+ 36.1+ Grn 34.0+ 34.5+4 bars 35.5-36.1 35.5-36.1 Grn & Yel 33.0-34.0 34.0-34.53 bars 34.4-35.5 34.4-35.5 Yel 32.0-33.0 33.5-34.02 bars 33.9-34.4 33.9-34.4 Yel & Red 31.5-32.0 33.0-33.51 bars 32.2-33.9 33.3-33.9 Red 31.0-31.5 32.5-33.00 bars 30.9-32.2 32.8-33.3 Flash Red <31.0 <32.5Cutout <30.9 <32.8F1F3F2A2!Ø.403213