Service Bulletin

Customer Service Bulletin

Commercial Business Group

Multi Pro

5600 and 5700 Date: November 30, 2005

Model/Serial Range: Model Number: Serial Numbers:

41568 220000101-230000450

41581 240000101-250000327

Subject: Turning off the foam marker on either side creates an

electrical surge that can change the Application Rate.

SITUATION: Turning the foam marker off on either side while spraying

creates an electrical surge within the wiring harness that can

affect the Pro Control

. The surge created induces a signal into

the wiring for the Speed Sensor, thereby giving a momentary

false signal causing the Pro Control to temporarily show an

increase in the Application Rate. Generally the foam marker is

turned off at the end of a pass at the same time the spray

system is put on hold, and no temporary change is observed.

Where this condition may be noticed is when the operator, for

whatever reason, turns a marker on and off while spraying.

CORRECTION:

Protection Diode Wire Harness (110-1674) was created to

attach inline with the connector to the three coils involved. The

conditions causing the need for this Protection Diode Wire

Harness (110-1674) are considered abnormal operation and,

therefore, the installation is at the owner’s option and expense.

For anyone who wishes to install the diodes, a Diode Wire

Harness (110-1674) will be required at each of the following

locations:

• One should be installed on the connectors to each of the

two Foam Solenoids located at the center of the boom

(figure 1).

• One should be installed on the connector to the main on/off

Solenoid found by the Foam Tank (figure 2).

Figure 2

Figure 1

Solenoids