OPERATION
Tennant 5280 (10–00)
14
9. Turn brush pressure knob to adjust pressure for
cleaning application. The indicator below the knob
shows if brush pressure is increasing or
decreasing (Figure 28).
FIG. 28
10. Observe brush pressure gauge. The brush
pressure gauge should be operated in the GREEN
zone. Operating machine with gauge in the RED
zone will cause scrub brush circuit breaker to trip
(Figure 29).
FIG. 29
11. To stop scrubbing, release control grips, raise
scrub head and squeegee.
12. After scrubbing, perform the Daily Maintenance
procedures (See MACHINE MAINTENANCE).
OPERATING ES (OPTION)
ES Option extends scrubbing time by reusing
recovered water. The recovered water is filtered and
recycled back into the solution tank for reuse.
1. Pour up to 19L (5 gal) of clean water, 60°C
(140°F) maximum temperature, into recovery tank
when filling solution tank (Figure 30).
WARNING: Flammable materials can cause
an explosion or fire. Do not use flammable
materials in tank(s).
FIG. 30
2. Turn ES switch on when ready to begin
scrubbing. The ES indicator light will
automatically turn on when recovery tank reaches
its recycling level (Figure 31).
FIG. 31
NOTE: If ES
indicator light remains on, drain tanks
and clean ES
filter located in recovery tank.
3. Drain and flush recovery and solution tanks as
needed (See DRAINING TANKS).
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