Nilfisk-Advance Convertamatic 24 Service Manual

Also see for BA 625: Instructions for use Instructions for use

Contents

Nilfisk-Advance Convertamatic 24 Service Manual Manual pdf 24 page image

22 - FORM NO. 56043098 - Convertamatic ™ 24, 26, 28, 32 / BA 625, 725, 825SCRUB SYSTEMSCRUB BRUSH DECK REMOVAL (DISC)1 Lower the scrub deck with brushes (pads) installed. Turn the key switch off and disconnect the battery pack.2 Lift up and remove cover and nose cone, from front of machine.3 See Figure 2. Separate the solution system water line (A) located on top of the scrub deck.4 Unplug both of the brush motor wiring harnesses (B). NOTE: Cable ties may need to be cut.5 Remove the lower Hitch Pin (C) that secures the brush deck lift actuator to the scrub deck. Note: Lift up on the scrub deck to take pressure off the Pin (C). Service Note: It isimportant that the actuator motor is not run while it is disconnected from the deck or chassis mounts. This precaution will prevent the actuator drive nut from beingmisadjusted (moved out of its set specification).6 Remove the Cotter Pin (D) and washers that attach the Upper Hitch Pin (E) to the machine chassis Linkage Arm (F). NOTE: Reference Config (A) or (B) depending on what yourmachine looks like.7 Remove the two (G) Hitch Pins that attach the scrub deck to the machine’s chassis Linkage Arms (H). Then rotate the Arms (H) out of the way.8 From the front of the machine swing the lower actuator housing forward to clear the deck mount bracket (remove the actuator on AXP™ / EDS™ models). Then slide the decktowards the left side of the machine until Pin (E) – Config A is clear of Arm (F) – Config A or until Arm (F) – Config B is clear of the tank bracket. Pull the deck forward away fromthe machine to complete the removal. SERVICE NOTE: It is important that the actuator motor is not run while it is disconnected from the deck or chassis mounts. This precautionwill prevent the actuator drive nut from being misadjusted (moved out of its set specification).9 To install a scrub deck, follow the above steps in reverse order.SCRUB BRUSH LIFT ACTUATOR REMOVAL (DISC.)1 See Figure 2. With scrub brushes installed, lower the scrub deck, turn the key off and disconnect the battery pack. Note: If the lift actuator motor will not run go to step 2 andperform the following, shim up the brush deck to remove the weight on the lower deck Actuator Pin (C) to remove.2 Remove the front nose cone by firmly grasping the lower part and lifting straight up.3 Disconnect the actuator motor wiring harness pig tail connector.4 Remove the lower actuator mount Pin (C). Note: Lift up on the scrub deck to take pressure off the pin (C).5 Remove the Pin (I) from the upper actuator mount weldment and remove the motor.6 See *Important Service Note below.7 Reinstall in reverse order.*Important Service Note: After removing any actuator motor and before installing a new motor or drive nut the IN and OUT limit switches must be set (or checked) to their correctspecifi cations. Reference the Electrical System in this manual for the Actuator Drive Nut Adjustment and follow these instructions before replacing the actuator motor.After setting the correct actuator nut adjustments for the scrub brush lift motor, follow removal steps in reverse order to reassemble.SCRUB BRUSH MOTOR/GEARBOX REMOVAL (DISC)Follow the steps in the1 Scrub Brush Deck Removal (Disc) section.Turn the brush deck on its back.2Remove the scrub brushes from the brush holders. If removing both motor/gearboxes mark the location of the holders and motors to the brush deck for proper re-assembly.3See Figure 3.4 Remove the (3) (J) Hex Screws from the flexible coupler that attaches the brush holder to the drive Hub (K) of the Motor/Gearbox Assembly you want to remove.Remove the (1) Hex Screw5 (L) that secures the Hub (K) to the output shaft on the defective motor/gearbox. Then pull the hub from the shaft and save the key.Remove the (4)6 (M) Screws and separate the defective Motor/Gearbox Assembly (N) from the scrub deck.Re-assemble in reverse order and test for proper operation. Note: Apply a small amount of grease or a product called “Never Seize” to the gearbox output shaft when reinstalling7the Drive Hubs (K).revised 7/07FIGURE 3