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Service Manual: SC750, SC800, SC 750 ST, SC800 ST
Form Number 56043150 Page 64
The Main Machine Controller intenonally shuts down machine funcons in two stages if the baery voltage drops too
low. This is called “Low Voltage Cut Out”. It is done to preserve the life of the baeries. The rst stage of low voltage cut
out shuts o the scrub funcon by turning o the scrub brush motors and raising the brush deck. It also shuts o the so-
luon and detergent. The vacuum is sll allowed to run in order to recover soluon that is on the oor. The second stage
of low voltage cut out turns o the vacuum. Wet baeries and Gel baeries use dierent voltage thresholds.
Stage Threshold (volts) Shuts Down
1
Wet Baeries – 20.55 V
Gel Baeries – 21.75 V
Brushes, soluon, detergent and
raises brush deck
2
Wet Baeries – 20.40 V
Gel Baeries – 21.60 V
Vacuum
Typical baery run mes may be around 2-4 hours.
Battery Compartment Dimensions
Length = 24.5” (62.23 cm), Width = 14.25” (36.2 cm), Height = 14.25” (36.2 cm)
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