Factory Cat 29 Operator's Manual & Service Book - Central Command
When Servicing Central Command,
Always Disconnect the Battery Cable
(Item 4) First, and Reconnect It Last
PAGE 24
Wiring Connections for
Central Command:
In replacing Central Command, the installer will have to match
harnesses. To simplify troubleshooting, the system uses 7
independent number-coded harnesses, each with color-
coded wires. These harnesses are as follows:
CODE:
FUNCTION & WIRES:
1.
To Traction Motor
Red 50 Connector. 6 Gauge cables.
2.
To Scrub Motors
Grey 50 Connector. 6 Gauge cables.
3.
To Vacuum Motors
Grey 50 connectors. 6 Ga. Cables.
4.
From Batteries
Red 175 Connector, large (I/O)
cables.
5.
Solution Valve & Overflow Switch
Harness.
Four-pin Molex with Green, Yellow,
black and orange wires.
6.
Auxiliary Power: Red & black & blue
wires.
7.
Handlebar Control Switch. Green &
green.
CENTRAL COMMAND
Models 29 & 35 walk-behind scrubbers are both very
simple mechanically. This simplicity is possible in
large part, because of the sophisticated "Central
Command" control unit. This unit, which forms the
box on which the controls are situated, directly con-
trols the brushes, the recovery vacuum blower, the
traction motor, the solution flow, and the dynamic
braking. To conserve battery reserve power, Central
Command turns motors off when they are not needed,
and controls them so as to minimize strain and maxi-
mize component life.
Do not attempt to service the Central Command
unit during the warranty period without written
permission of the Factory or of your Authorized
Factory Cat Dealer. Doing so will void the war-
ranty.
In general, if a fault is traced to the Central Command
module, the entire module will be exchanged under
warranty with a Factory-tested replacement.
After warranty expiration, you may wish to repair the
Central Command module yourself. We strongly rec-
ommend that you obtain our "Central Command
Testing and Repair Manual" before doing this, how-
ever. In North America, please call 1-800-634-4060
to obtain a copy.
You can also send in your Central Command unit for
repair or exchange at the Factory. To do this, call your
Authorized Factory Cat dealer.
Central Commands can be removed from the ma-
chine within 15 minutes or so. To do this, you first
disconnect the batteries from the Central Command
(unplug the Red 175 plug inside the battery box), then
disconnect the quick-connect cables that are found
under the Central Command.
You must also disconnect the flow control's cable from
the flow valve (in brush head area, behind brush
head).
Finally, the Central Command's rear cover is re-
moved, and it is unbolted from the body of the
machine.
If a wiring fault occurs, chances are greater it is
in the wiring leading to the Central Command
unit than in the Central Command itself.
To make your Central Command unit easy to
service, we have made all harnesses that lead
to the Central Command so they are easy to
disconnect.