FORM NO. 56043058 Hydro-Retriever™ 3800 / 2042 / BR 1100 -
29
SCRUB BRUSH SYSTEM
1
“
(25mm)
T
U
A
B
C
+
+
+
–
–
–
A1
A1
A2
A2
FRONT
Belt
Brush
Brush
Right Motor
Left Motor
Belt
FIGURE 11
FIGURE 12
SCRUB BRUSH REMOVAL AND INSTALLATION (CYLINDRICAL)
1
Make sure the key switch is off and disconnect the battery pack before servicing.
2
To access the brushes, swing open both the side skirt assemblies. See Figure 10. Note: The skirts are held in place by Hairpins
(N)
on
each side, remove the pins and swing the skirt assemblies out of the way.
3
Loosen the black knobs (one on each side) that secure the removable bearing idler support Plate
(R)
to the brush housing, then pull the plates
down and out to remove. Grip the scrub brush and slide it from the housing end.
4
To install the brush slide it into the housing, lift slightly, push and turn until it seats into the drive end assembly.
5
Re-install the idler end plate assemblies, close the skirt assemblies and secure with the hairpins.
SIDE SKIRT MAINTENANCE & ADJUSTMENT (CYLINDRICAL)
General Overview: The side skirts function is to channel the wastewater to the rear pick-up squeegee, helping contain the water within the machine’s
cleaning path. During normal use the blades will wear in time. The operator will notice a small amount of water leaking out underneath the side
skirts. The skirt height adjustment is automatic on this system using spring tension and movable linkage arms to control the blade pressure. The
side skirt assemblies must move up and down freely for proper operation.
To replace the scrub system side skirts…
•
See Figure 10. Remove the (2) Hairpins
(N)
and swing the skirt assemblies open. Remove the
(S)
Screws and nuts then remove the skirts
and replace.
To adjust the scrub system side skirts…
Note: The side skirt blade assemblies have two minor adjustments, they are the individual front collar height and the rear blade pressure spring.
See Figure 12. The stop collar
(T)
is installed on the pivot hinge bolt to help control the front skirt mount bracket’s travel when the scrub deck is
lowered. It limits the front of the blade from folding (curling) under when scrubbing. Thus allowing the blade to hold its shape better, reduce blade
damage and wear.
See Figure 12. A limited amount of adjustment for general blade wear and squeegee wiping performance can be made by reinstalling the spring
attachment screw
(U)
into a different mount hole (A, B or C). This change will increase or decrease the spring force (pressure) pulling down on
the rear edge of the skirt blade. Position “C” creates maximum down pressure on the blade and position “A” is minimum pressure.
revised 12/02
