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9.10 DRIVE SET REPLACEMENT
CHAPTER 9: PART REPLACEMENT GUIDE
*NOTE:Itisrecommendedthat2techniciansbepresentwhenreplacingorremovingthedriveset.Whileitisnotnecessaryto
removethesidecoversorasetofstairs,itmakesitmucheasiertoremovethedrivesetifthesepartsareremovedforaccessibility.
1) Turn off power and disconnect the cord from the machine.
2) Turn the 2 plastic screws counter-clockwise and remove the Matrix logoed covers on both sides of the machine.
3) Turn the brake lever to the right to lock the stairs (Figure A) to prevent movement that could cause injury.
4) Disconnect the speed sensor wire (Figure B). NOTE: Use 2 hands to disconnect the speed sensor wire. Do not pull the socket downwards to
disconnect as it will damage the connector.
5) Loosen the screw that applies tension to the chain (Figure C).
6) Disconnect the 5 wire connectors at the top of the drive set (Figure D). These include 2 fan wires, 2 ECB wires, and a brake wire.
7) Loosen the drive set guide screw if tight (Figure E).
8) Remove the 4 screws that hold the drive set to the frame (Figure F).
FIGURE A FIGURE B
FIGURE DFIGURE C
FIGURE FFIGURE E