Service Manual: SC750, SC800, SC 750 ST, SC800 ST
Form Number 56043150 Page 50
Battery Charger (Optional On-board Battery Charger)
The baery charger is mounted to the boom of the frame with 4 bolts that are screwed into threaded holes.
1. Cut e straps securing AC power cable.
2. Cut e straps securing electrical connectors.
3. Disconnect electrical connectors.
4. Remove 4 baery charger mounng bolts.
5. Remove charger, thread AC power cable through opening.
6. Reassemble in the reverse order. Tie wiring in same loca-
ons using new e straps.
Low Voltage Cut Out Threshold Voltages
The On-board 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 soluon and deter-
gent. 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
Battery Run Time
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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