Nilfisk-Advance AquaRide BRX 700, Service Manual, Page: 54 / 82

52 52 52 52 52 - FORM NO. 56043089 / AquaRide ™ / BRX 700
ELECTRICAL SYSTEM ELECTRICAL SYSTEM ELECTRICAL SYSTEM ELECTRICAL SYSTEM ELECTRICAL SYSTEM
ACTUA ACTUA
ACTUA ACTUA
ACTUATOR DRIVE NUT ADJUSTMENT TOR DRIVE NUT ADJUSTMENT
TOR DRIVE NUT ADJUSTMENT TOR DRIVE NUT ADJUSTMENT
TOR DRIVE NUT ADJUSTMENT
This manual section explains the steps for adjusting the drive nut (housing assembly) setting for the machine’s scrub deck actuator
motor. Reference the chart below that shows the IN & OUT dimensional specification for the actuator motor that is used on the
AquaRide
™ & AquaRide ™ SE / BRX 700.
Part # Part # Part # Part # Part # Actuator Motor Actuator Motor Actuator Motor Actuator Motor Actuator Motor Drive Nut Housing Assy IN Drive Nut Housing Assy IN Drive Nut Housing Assy IN Drive Nut Housing Assy IN Drive Nut Housing Assy IN Drive Nut Housing Assy OUT Drive Nut Housing Assy OUT Drive Nut Housing Assy OUT Drive Nut Housing Assy OUT Drive Nut Housing Assy OUT
56393303 Scrub Brush Lift (all) 1/4" (6.3mm)* 3-7/8" (98.5mm)*
*The “Drive Nut Housing Assy IN/OUT Position” dimensions are measured when completely assembled. Reference points are the
edge of the plastic Spring Housing Assembly as shown in Figure 3.
General Instructions for All Actuator Motors General Instructions for All Actuator Motors
General Instructions for All Actuator Motors General Instructions for All Actuator Motors General Instructions for All Actuator Motors
1
11 11 See Figure 2. This shows the special actuator
power cord adapter (PN 56407502)
(PN 56407502) (PN 56407502) (PN 56407502) (PN 56407502) that is needed
to connect the machine’s battery pack and actuator
motor for setting the drive nut limit settings.
2 22 22 Open the machine battery compartment and dis-
connect the battery connector. The battery pack is
needed to power the lift actuator motor to properly
set the IN & OUT limit switches.
3 33
33
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 bat-
tery posts. The rocker switch is used to change the
motor rotation in setting the correct drive nut di-
mension.
Instructions for Scrub Brush Lift Actuator Drive Nut Adjustment Instructions for Scrub Brush Lift Actuator Drive Nut Adjustment Instructions for Scrub Brush Lift Actuator Drive Nut Adjustment Instructions for Scrub Brush Lift Actuator Drive Nut Adjustment Instructions for Scrub Brush Lift Actuator Drive Nut Adjustment
1
11 11 See Figure 3 and 4. On a new scrub lift actuator motor remove (spin-off) the Drive Nut (A) (A) (A) (A) (A) first slide on the short compression
Spring (B) (B) (B) (B) (B) onto the actuator (lead screw) shaft. Next reinstall the plastic drive nut as shown (with the nut pin pocket away from
the motor). Then finish assembly of remaining parts (long compression spring, Spring Housing (C) (C) (C) (C) (C) and mounting hardware).
2 22 22 Hold onto the spring housing assembly and press the rocker switch to run the drive motor and retract the spring housing towards
the motor housing (its IN limit).
3 33 33 Measure the position of the spring housing assembly on the actuator shaft. Manually turn the spring housing assembly to the
appropriate IN position shown in the chart above.
4 44 44 Hold the spring housing assembly then press the adapter cord rocker switch to run the drive motor to the OUT position (wait until
the motor stops).
5 55
55
Measure the position of the spring housing assembly on the shaft and compare the measurement with the OUT position shown
in the chart.
6 66
66 When the measurement doesn’t match the dimension shown in the chart it is necessary to remove the Adjuster Cover (D)
(D)
(D) (D) (D) and
adjust the OUT position.
7 77
77 To increase the travel of the spring housing assembly, turn the adjuster clockwise. To decrease the travel of the assembly, turn
the adjuster counter clockwise.
NOTE: Use a 1/2" (13mm) socket to turn the adjuster. Each click of the adjuster will change the spring housing assembly travel
1/16 inch (1.6mm).
8 88 88 After each adjustment, hold the spring housing assembly, run the actuator IN & OUT and check both dimensions. After checking
that the spring housing limits are set correctly replace the adjuster cover. Service Tip Note:
Service Tip Note: Service Tip Note: Service Tip Note: Service Tip Note: Use the above power cord adapter
to help position the spring housing assembly (in or out) for ease in actuator motor installations.
9 99 99 After adjusting the actuator spring housing dimensions, follow the Scrub Brush Lift Actuator Removal manual section to
reassemble.
Service Tip: Service Tip: Service Tip: Service Tip: Service Tip: See Figure 4. Note the correct orientation of the Spring Housing (C) (C) (C) (C) (C) when installing the complete motor assembly and
also run the spring housing assembly to the IN (retracted) position for machine installation.
FIGURE 2 FIGURE 2 FIGURE 2 FIGURE 2 FIGURE 2