Recovery System45Service Manual – SC400Removal and InstallationVacuum System Motor Amperage CheckAABEDCP200055Warning! This procedure must beperformed by qualifiedpersonnel only.1 Check that the squeegee and the vacuum hoseare clean and that there is no dirt in their innerparts2 Keep the squeegee lifted3 Remove the screws (A), then remove theelectrical component box cover (B)Warning! Do not touch uncoveredelectrical components whileperforming the followingsteps.4 Apply the Amp clamp (C) on the electrical cable(D) of the vacuum system motor on the relayoutput (E)5 Turn on the vacuum system and check that thevacuum system motor amperage is between 13and 17 A at 24VStop the vacuum systemTurn the machine program selection knob to “0”Remove the Amp clamp (C)If the amperage is higher, perform the followingprocedures to detect and correct the abnormalinput:• Check that the vacuum system motor fuse(F2) is properly tightened• Check the condition of the vacuum systemmotor carbon brushes• Remove the vacuum system motor (see theprocedure in the Vacuum System MotorDisassembly/Assembly paragraph), and checkthe condition of all its componentsIf the above-mentioned procedures donot produce the correct readings for thevacuum system motor amperage, the motormust be replaced (see the procedure in theVacuum System Motor Disassembly/Assemblyparagraph)Reassembly6 Assemble the components in the reverse order ofdisassembly