Specifications

OPERATION
18
Tennant 5400 (05--03)
NOTE: If a powdered substance is not available, let
brushes spin for 30 seconds in one spot.
6. Release parking brake, raise scrub head and
reverse machine from test area.
7. Observe brush pattern on floor. Both brushes
should leave an even, parallel pattern (Figure 38).
CORRECT BRUSH PATTERN
INCORRECT BRUSH PATTERNS
Even and
Parallel
Pattern
Tapered
Pattern
Uneven
Pattern
FIG. 38
8. If brush pattern represents one of the incorrect
patterns, adjustment is required.
To adjust cylindrical brush with uneven pattern:
1. Lower scrub head to floor and apply maximum
down pressure.
2. T urn off machine and remove key.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
3. Measure distance from bottom edge of scrub head
to floor at all four corners (Figure 39).
FIG. 39
4. If scrub head is not level, loosen lock nut and turn
scrub head leveling screw clockwise to lower rear
brush width or counter--clockwise to lower front
brush width, 1 inch wrench required (Figure 40).
FIG. 40
5. Recheck brush pattern, readjust if necessary.
To adjust cylindrical brush with tapered pattern:
1. Raise scrub head of f floor and remove key.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
2. Remove idler plate that has the tapered brush
pattern. To remove idler plate from scrub head,
push spring mount tab downward, then pull bottom
of plate down and outward (Figure 41).
FIG. 41
3. Pull idler plate off end of brush.
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