17
Maintenance
NOTE: The following service items should be
performed by an authorized service facility or autho-
rized service personnel. All parts referred to in these
instructions can be identified by using the parts lists
and illustrations on the following pages.
Remove machine power cord from electrical source
before making any repairs or adjustments to the
machine.
Retirez le cordon d'alimentation de la machine de la
source électrique avant de procéder à des répara-
tions ou des ajustements de la machine.
Brush Deck
The dual cylindrical brush deck is designed to effi-
ciently extract dirt from the carpet. Please note the
differences between the front/rear brushes. Installing
them in reverse position will significantly reduce the
performance of the machine. The brush part
numbers are marked on drive ends of the brush core
as follows:
8.621-612.0 (12543) - Front Brush
8.621-611.0 (12540) - Rear Brush
Brushes should be replaced as a set when bristle
length wears to height of yellow PerformAlertTM
bristles.
Brush Removal
The brushes are removed from the right side of the
machine.
1. Adjust handle into the vertical position and lock
the cam lever. Tilt machine on it's back using
handle to support it's position.
2. Pull out on the bottom of the retaining clip.
3. The brush assembly and end cap should drop
down. Then pull the brush down far enough to
clear the bottom of the housing.
4. Pull brush out with a rocking motion to free brush
from drive hub.
Bearing Cleaning
1. Remove bearing cap from end of brush.
2. Clean cap and bearings.
Brush Replacement
1. Make sure the brushes are in the correct position
(front/rear) by following the brush installation
label on the underside of the machine. Lift the
drive side of the brush and push it onto drive hub
until a positive stop is felt. The brush cannot be
installed until the brush is fully seated on the
drive hub.
2. Pull out on the bottom of the retaining clip.
3. Line up end cap with the flats to each side.
4. Slide brush up into retaining clip until it clicks in
place.
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