Factory Cat 29 Operator's Manual & Service Book - page 26
Remove side door,
Pull out brushes.
CYLINDRICAL BRUSH SYSTEM
MAINTENANCE:
DAILY:
1.
Empty and wash out the dirt hop
per every day.
2.
If you scrub hard, the brushes will
last longer if every day you move the
front brush to the back and the back
brush to the front.
This brush rotation is not appropriate
if you are using a combination of
brushes, such as green grit in front
and grey in the back.
Page 16
To change cylindrical brushes:
Open righthand door on machine.
Remove inner door, which is held on with
four wing nuts. Do not lose the fasteners!
Pull the brushes out.
Put new brushes in place. Push against
driver on other side of machine with tube
and rotate tube slowly with your hand. If
need be, go to other side of machine and
reach around bottom of brushhead to seat
brush on mount.
BRUSHES TO USE
The cylindrical system offers four brush
types
1.
Soft Nylon for use on fine finished
floors. Bristles are clear or white in
color.
2.
Regular Nylon: Also white in color,
brush has coarser, stiffer fiber, but is
still safe for most fine surfaces.
3.
Grey Grit, for general purpose
cleaning on concrete and other less
sensitive surfaces. BE CAREFUL AS
GREY GRITS MAY DAMAGE SOME
SENSITIVE SURFACES.
4.
Green Grit, for very heavy cleaning
in industrial settings. THESE WILL
DAMAGE A SENSITIVE SURFACE.
If your cleaning conditions are harsh enough
to need green grit brushes, we recommend
you first try using just one green grit--for the
front brush, followed by a grey grit. This
combination will sweep much better than two
green grits. The green grits are too stiff to
"flick" many light objects into the hopper.
WEEKLY:
1.
Measure brush length. Bristle
must be 1/2" long or longer. (New
brush fiber is one inch long). Replace
brushes as needed.
MONTHLY:
1.
Remove black side cover on lefthand
side of cylindrical unit.
2.
Inspect chain. Chain is lubricated
with long-lived silicone-based syn
thetic grease, and is maintained in
place by non-adjustable sprockets
and a spring-loaded tensioner.