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- FORM NO. 56043058 Hydro-Retriever™ 3800 / 2042 / BR 1100
SCRUB BRUSH SYSTEM
FRONT
P
N
O
R
S
R
P
O
N
Q
Q
Scrub Brush Motors (Cyl)
SCRUB BRUSH MOTOR(S) REMOVAL (CYLINDRICAL)
1
See Figure 10. First open both the left and right side brush housing doors, and then remove the Hairpin
(N)
from both the scrub deck skirt
assemblies and swing them open.
2
Next remove the Belt Guards
(O)
(4 screws per side). With an operator in the driver’s seat with the key switch ON and the normal scrub
function selected press the drive pedal to start the scrub brushes and observe which brush motor needs to be removed.
3
Next loosen the scrub brush belt tension Hex screw in the center of the Belt Idler
(P)
(using a 5/8" wrench).
4
Remove the wiring at both the Pos. & Neg. brush motor terminal studs and note the correct wiring connections (for reinstallation). Then
remove the (3) Screws
(Q)
and lift the motor out from the front or rear of the scrub deck.
5
Reassemble in reverse order and adjust the belt tension to 1/2-9/16 inches (13-14 mm) as shown in Figure 9. Note: Install motors with A2
terminals closest to deck.
FIGURE 10
SCRUB BRUSH BELT REPLACEMENT (CYLINDRICAL)
1
See Figure 10. Remove Hairpin
(N)
and swing open the scrub deck skirt assembly (right or left side) and remove the belt guard(s)
(O)
(4
screws each).
2
Important Service Tip:
The left and right side drive belts are not the same lengths they must be ordered individually (P.N. 56410217, left
side & P.N. 56410215, right side).
3
Loosen the scrub brush belt tension hardware on the Belt Idler Pulley
(P)
(using a 5/8" wrench). Pull the idler wheel away from the backside
of the belt and roll the belt off both the motor and brush pulleys. Then inspect for wear and replace as needed.
4
Re-install the drive belt and tension the belt as shown in Figure 9. Then install the belt guard, reconnect the battery pack and test the scrub
system for proper operation.
SCRUB BRUSH SYSTEM MAINTENANCE
The scrubbing system must be serviced at regular intervals to maintain good scrubbing performance. Follow the maintenance steps listed below.
1
Rinse clean, built up debris from the debris hopper drain holes (daily).
2
Clean drain holes in the solution delivery trough on top of the scrub deck (weekly).
3
Clean built up dirt from the inside of the scrub brush housing (weekly).
4
Remove any string wrapped around the scrub brush, drive hub and idler hub (weekly).
5
Remove both the scrub brushes and rotate, turn end for end (weekly). See
Scrub Brush Removal and Installation (Cyl)
section.
6
Inspect the scrub brush bristles for wear, the brushes should be replaced when the bristle length is 1 inch (26 mm) or less (monthly).
revised 12/02
