Actuator Drive Nut Adjustment; General Instructions For All Actuator Motors - Nilfisk-Advance Adphibian AX 651 Multi EDS Service Manual

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Percent of Charge Specific Gravity
100% (full charge)
1.265
75%
1.225
50%
1.190
25%
1.155
0% (discharged)
1.120
2. Use a voltmeter to check the voltage of each battery with the scrub and drive motors running. The battery with the
dead cell will read 1 or 2 volts lower than the other batteries in the system.
If the batteries in the machine are more than one year old, it's usually best to replace the whole set, rather than
replacing just one battery.

Actuator Drive Nut Adjustment

This manual section explains the steps for adjusting the drive nut (spring housing) setting for all the models' scrub brush
lift actuator motor. Reference the chart below to find the IN and OUT dimensional specification for an actuator motor
needing adjustment.
Part #
Actuator Motor
56393303
Scrub Brush Lift (all)
Note: The "Spring Housing IN/OUT Position" dimensions are measured when completely assembled.
Reference points are the gear box step to the edge of the plastic Spring Housing Guide (A) as shown in
Figures 32 and 33.

General Instructions for All Actuator Motors

See Figure 31. This shows the special
actuator power cord adapter (p/n 56407502)
that is needed to connect the machine's
battery pack and actuator motor for setting
the drive nut limit settings.
1. Open the machine battery compartment
and disconnect the battery connector.
The battery pack is needed to power the
lift actuator motor to correctly set the IN
and OUT limit switches.
2. Connect the actuator motor to be tested
to the power cord adapter end.
3. Connect the alligator clips from the cord
adapter (red clip to the positive and black
to negative) to the battery connector or
battery posts. Use the rocker switch to
change the motor rotation in setting the
correct drive nut dimension.
76 - Form No. 56043116 - Adphibian™/AX 651 Multi EDS/AquaPLUS™
Spring Housing IN Position
.0"
Figure 31
Spring Housing OUT Position
3.62" (9,19cm) - 3.88" (9,86cm)
Models
All

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