Nilfisk-Advance Hydro-Retriever 3800 Service Manual

Also see for BR 1100: Instructions for use

Contents

26 - FORM NO. 56043058 Hydro-Retriever™ 3800 / 2042 / BR 1100SCRUB BRUSH SYSTEMSCRUB BRUSH DECK ASSEMBLY REMOVAL (CYLINDRICAL)1 Lower the scrub deck with the cylindrical brushes installed. Note: Don’t turn the key switch off until disconnecting the battery pack by pushingin the emergency disconnect knob (12). This procedure is done to prevent the scrub deck from automatically raising itself when the key isturned off. Turn the key switch Off.2 Open both the left and right side brush housing doors and remove the Debris Hopper (C) (see Figure 8) from the machine.3 Remove the nut and screw that secure the deck down limit Cable (D) at the deck mount bracket.4 Remove the Retaining Ring (E) securing the lower lift motor mount Pin (F) and remove the pin from the deck mount.5 Disconnect the brush lift motor wire harness at the motor.6 Remove the mounting hardware, Screw (G) and Nut (H) then separate the Support Arm (I) from the machine’s out board frame mountingbracket (right side of machine).7 On both sides of the machine remove the (4) item (J) Hex Nuts from the front Ball Joint Ends (K), and then separate the deck support armsfrom the machine frame. Note: To access the top Hex Nuts (J) pop off the removable frame cover plugs using a screwdriver.8 Cut any necessary wire ties that secure the wiring harnesses for the solution solenoid and scrub brush motors. Next remove the two mainelectrical wires (one black & one red) at the brush motor(s) terminal studs and then also unplug the wire connector for the solution solenoidvalve.9 Remove the solution feed hose at the solenoid valve and carefully slide the scrub deck assembly out from underneath the machine fromeither side.FIGURE 8revised 12/02FRONTCFEL JKJDKJMIGH