ENGLISH SERVICE MANUAL44 909 6510 000(3)2007-12 Razor Blade 26D / 28D / 28CPARKING BRAKE SYSTEMELECTROMAGNETIC BRAKE DISASSEMBLY/ASSEMBLY (Machines up to January 2007)DisassemblyDrive the machine to the appointed disposal area, and empty the recovery water tank (58) with the hose (22).Empty the solution tank (59) with the tap (36).Place the machine on a hoisting system (if available). Otherwise, drive the machine on a level floor.Turn the ignition key (12) to "0".Carefully lift the tank assembly (60).Disconnect the battery connector (63).Apply proper wedges to right and left rear wheels (43), so that the machine cannot move when the electromagnetic brake (39)is disassembled.Disconnect the electromagnetic brake connector (A).Disconnect the wiring harness (B) from the clamps (C).Remove the self-locking nut (D) and the unlocking handwheel (E).Remove the screws (F), then remove the cover (G).Remove the electromagnetic brake mounting screws (H).Remove the electromagnetic brake (I).Remove the brake pad (J).AssemblyAssemble the components in the reverse order of disassembly, and note the following:Before assembling the cover (G), check the gasket (L) for dirt, integrity and correct positioning.To activate the electromagnetic brake, the self-locking nut (D) must be flush with the threaded tie rod (K), while theunlocking handwheel (E) must be unscrewed until it contacts the nut (D) (as shown in the figure).WARNING!When the unlocking handwheel (E) is unscrewed, the electromagnetic brake is activated; when the unlockinghandwheel (E) is screwed, the electromagnetic brake is deactivated.Check the parking brake (see the procedure in the relevant paragraph).1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.••16.
