Nilfisk-Advance BR 1100S Service Manual

Also see for 56413006: Instructions for use Instructions for use - original instructions

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Nilfisk-Advance BR 1100S Service Manual Manual pdf 59 page image

FORM NO. 56043122 - BR 1100S, 1300S - 57ELECTRICAL SYSTEM - 8Instructions for Scrub Brush Lift Actuator Drive Nut AdjustmentFIGURE 8.6FIGURE 8.5nut and run it out enough so that the Pin Bracket (F) can be turned in to make up differencefrom the dimension targeted. Example: the first IN dimension measures 4-1/2” minus the4-1/8 target dimension the difference is 3/8”. Turn in nut manually 3/8”and then run thehousing in under power until the inner limit stops the motor. Readjust until dimension shownis achieved.4 Hold the spring housing assembly, then press the adapter cord rocker switch to run the drivemotor to the OUT position (wait until the motor stops).5 Measure the position of the spring housing assembly on the shaft and compare themeasurement with the OUT position shown in the chart.6 When the measurement doesn’t match the dimension shown in the chart it is necessary toremove the Adjuster Cover (B) and adjust the OUT position.7 To increase the travel of the spring housing assembly, turn the adjuster clockwise. Todecrease the travel of the assembly, turn the adjuster counterclockwise.NOTE: Use a 1/2” (13mm) socket to turn the adjuster. Each click of the adjuster willchange the spring housing assembly travel 1/16 inch (1.6mm).8 After each adjustment, hold the spring housing assembly, run the actuatorIN & OUT and check both dimensions. After checking that the springhousing limits are set correctly replace the adjuster cover.Service Tip Note: Use the above power cord adapter to helpposition the spring housing assembly (in or out) for easein actuator motor installations.9 After adjusting the actuator spring housing dimensions,follow the Scrub Brush Lift Actuator Removal (Disc orCylindrical) manual section to reassemble. ReferenceFigure 8.5 to correctly mount the top of lift motor tothe chassis by model size.Service Tip: See Figure 8.5. Note the correct orientationof the Spring Housing (E) when installing the completemotor assembly and also run the spring housing assemblyto the IN (retracted) position for machine installation.1 See Figure 8.5 and 8.6. On a new scrub liftactuator motor remove (spin-off) the DriveNut (C) and install the short compressionSpring (D) onto the actuator (lead screw)shaft. Next reinstall the plastic Drive Nut(C) as shown (with the nut pin pocket awayfrom the motor). Then finish assemblyof remaining parts (long compressionspring, Spring Housing (E) and mountinghardware).2 Hold onto the spring housing assembly andpress the rocker switch to run the drive motorand retract the spring housing towards themotor housing (its IN limit).3 Measure the position of the spring housingassembly on the actuator shaft. Manuallyturn the spring housing assembly to theappropriate IN position shown in the charton previous page. Additional adjustmentinstructions: The inner top spring is set ata pre-loaded compressed setting. It will benecessary to slightly over-ride the manualadjustment after running the drive nut inand turning it by hand. A small problem isobserved in the retracted position as the pinmounting bracket interferes with the motor.After making the initial adjustment hold the