1972 Ski-Doo Shop Manual, Page 68Get this manual
BRAKE MECHANISM
3Unscrew nut securing the cam and remove the washer, cam, spring and two (2) pin pushers4
3Attach brake cable to cam using bolt, cable lock bracket and nut4On Nordic 640ER model, install contact bracket and boltConnect electrical wires to brake switch
Remove the two (2) Allen head bolts re taining the puck carrier and side camRemove bushings
5Remove puck and back-up plate from side camNOTE: Do not remove glued puck from inner half unless damaged or worn and replacement is necessary
5Proceed with brake adjustment as followsIf minor adjustment is indicated: Slacken off nut (A) and tighten nut (B) to increase lever clearanceTurn each nut vice versa to decrease (fig1-11-10)
INSPECTION 1Check disc pucks (installed or removed) for damage or wear