48 - FORM NO. 56043088 / Advenger
™
/ BR 600S, 650S, 700S, 800S
ELECTRICAL SYSTEM
ACTUATOR DRIVE NUT ADJUSTMENT
This manual section explains the steps for adjusting the drive nut (housing assembly) setting for the machine’s two actuator motors. Reference
the chart below to fi nd the IN & OUT dimensional specifi cation for the specifi c actuator motor needing adjustment.
Part # Actuator Motor Drive Nut Housing Assy IN Drive Nut Housing Assy OUT
56393303 Scrub Brush Lift (Disc) 3/8” (9mm)* 3-5/8” (92mm)*
56393303 Scrub Brush Lift (Cyl.) 0” (0mm)* / Flush** 3-5/8” (92mm)*
56397230 Squeegee Lift 3/32” (2mm)* 3-3/8” (86mm)*
*The “Drive Nut Housing Assy IN/OUT Position” dimensions are measured when completely assembled. Reference points are the gear box
step to the edge of the Steel Tube (A) as shown in Figure 3, or the edge of the plastic Spring Housing Assembly as shown in Figure 4.
**Flush even to end of step.
General Instructions for All Actuator Motors
1 See Figure 2. This shows the special actuator power cord
adapter (PN 56407502) that is needed to connect the machine’s
battery pack and actuator motor for setting the drive nut limit
settings.
2 Open the machine battery compartment and disconnect the
battery connector. The battery pack is needed to power the lift
actuator motor to properly set the IN & OUT limit switches.
3 Connect the actuator motor to be tested to the power cord
adapter end. Then connect the alligator clips from the cord
adapter (red clip to the positive and black to negative) to
battery connector or battery posts. The rocker switch is used
to change the motor rotation in setting the correct drive nut
dimension.
Instructions for Squeegee Lift Actuator Drive Nut
Adjustment
1 See Figure 3. Hold onto the Actuator Drive Nut (A) and press the rocker switch to run the drive motor and retract the nut towards the motor
housing (it’s IN limit).
2 Measure the position of the drive nut on the actuator shaft. Manually turn the steel tube to the IN position as shown in the chart.
3 Hold the drive nut then press the adapter cord rocker switch to run the drive motor to the OUT position (wait until the motor stops).
4 Measure the position of the drive nut on the shaft and compare the measurement with the OUT position shown in the chart.
5 When the measurement doesn’t match the dimension shown in the chart it is necessary to remove the Adjuster Cover (B) and adjust the Out
position.
6 To increase the travel of the drive nut, turn the adjuster clockwise. To decrease the travel of the nut, turn the adjuster counter clockwise.
NOTE: Use a 1/2” (13 mm) socket to turn the adjuster. Each click of the adjuster will change the nut travel 1/16 inch (1.6 mm).
7 After each adjustment, hold the drive nut, run the actuator IN & OUT and check both dimensions. After checking that the drive nut limits are
set correctly then replace the adjuster cover. Service Tip Note: Use the above power cord adapter to help position the drive nut (in or out) for
ease in actuator motor installations.
FIGURE 2
FIGURE 3
3/32"
(2mm)
A
3-3/8"
(86mm)
B
IN
OUT
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