Specifications

OPERATION
Tennant 5400 (07--02)
21
Solution Hose
Wire
Harness
Connector
(2) Lift Arm
Clevis Pins
Lift Arm
Roller Bracket
Clevis Pin
Roller Bracket
Disc Scrub Head
Cylindrical Brush
Scrub Head
Roller Bracket
Socket Screw
(2) Lift
Arm Cle-
vis Pins
Wire Harness
Connector
Solution Hose
Note: Loosen this
bracket if scrub head
does not release
from machine.
Align scrub
head sym-
bol with
notch
Switch
Box
-- Cylindrical
-- D i s c
Loosen
screws
DETAIL
Scrub
Head
Symbol
Switch
Box
Spring
Bracket
FIG. 49
4. Disconnect solution hose from scrub head
(Figure 49).
5. Unplug brush motor wire harness connectors
(Figure 49).
6. Remove two clevis pins that connect scrub head
to lift arms (Figure 49).
For Disc Scrub Head: Remove a third clevis pin
that connects scrub head to roller bracket
(Figure 49).
For Cylindrical brush Scrub Head: Remove socket
screw that connects scrub head to roller bracket,
use a 5/16” Allen wrench (Figure 49).
7. Pull scrub head away from machine.
8. Loosen the two mounting screws on the switch
box and align the corresponding scrub head
symbol, printed on the switch box, with the notch
in the spring bracket (Figure 49 -- DETAIL).
Retighten screws after adjusting.
9. When changing to cylindrical brush scrub head
you must install squeegee swing stop screws,
17mm wrench and 8mm socket wrench required.
Remove screws when using the disc brush scrub
head (Figure 50).
FIG. 50
10. Repeat steps in reverse order to install other scrub
head. Make sure leveling screw engages bracket
slot as shown (Figure 51).
FIG. 51
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