Nilfisk-Advance 56397010 Service Manual

FORM NO. 56043056 ConvertaMAX™ 20/26 / BA 550/650 - 35RECOVERY SYSTEM1 2 3FRONTQOPN12 3RVACUUM MOTOR REMOVAL1 Drain the recovery tank using the drain hose.2 Swing open the recovery tank, secure with prop rod and disconnect the vacuum motor harness connector.3 See Fig 3. Remove the vacuum motor Duct Cover (F) secured to the bottom of recovery tank bottom (qty 4 screws).4 Loosen the exhaust hose clamp and remove Hose (M) from the vac motor discharge tube and completely remove the motor from its mount cavity.5 Inspect the condition of the vac motor Gasket (G) inside the vac motor mount cavity.6 Make service repairs to the vac motor and re-install by following steps in reverse order.RECOVERY TANK REMOVAL1 Follow steps 1-4 in the Vacuum Motor Removal section.2 See Figure 3. Remove the Nut (H) and release the Tank Support Bar (I) and allow the tank to swing down to the side of the battery compartment box.3 Loosen the hose clamp for the tank drain hose (J) and pull the hose free.4 Remove the Tank End Panel (K) (3 screws) and remove the Squeegee Hose (L) from the tank connection.5 Support the tank and remove the (4) screws from the hinge that attaches the tank to the top of the solution tank edge and pull the tank free from the machine.VACUUM SWITCH REPLACEMENT AND ADJUSTMENT1 With the key switch OFF remove the back Electrical Panel (N) secured with (6) screws to access the Vacuum Switch (O) as shown in Figure 4.2 Remove the (2) Switch Mount Screws (P), Nut Plate (Q) then separate the wiring connector and remove the switch from the machine.3 With the squeegee Lift Lever (R) in the Up storage position (1) install the vacuum switch loosely to its mount bracket and reconnect the wiring.4 See Figure 4. Move (push) the switch actuator arm roller against the squeegee lever to where it clicks then tighten the mounting screws.5 Test with the key switch ON, the vacuum switch is in the open position (off) and the vac motor will not run. Move the squeegee lever to the next notch (2)and the switch will click to its closed position (on) and the vac motor will run.FIGURE 4revised 9/01