Nilfisk-Advance 56397010 Service Manual

FORM NO. 56043056 ConvertaMAX™ 20/26 / BA 550/650 - 29SCRUB BRUSH SYSTEMFRONTFront ViewSide ViewScrub deck inraised positionScrub deck inlowered positionFIGURE 6BRUSH HEAD SWITCH ADJUSTMENT (MACHINES BUILT AFTER FEBRUARY 2001)WARNING!Have the master key switch OFF when servicing the brush switch.1 To access the brush switch remove the (5) screws securing the brush motor shroud then put the scrub brush deck in it’s UP stored position.2 See Figure 6. Position the switch arm roller on the corner of the striker bracket as shown.3 Push the switch and roller down to compress the switch (you will hear a click) then tighten the mounting screws to secure the switch adjustment. Note theswitch is now properly adjusted for an open circuit brush motors Off function.4 Install scrub brush(es), lower the scrub deck, turn the key switch on and then engage the drive paddle to test that the brush motors run. Also cycle raiseand lower the brush deck to check the proper On and Off brush and drive paddle operations.revised 9/01