1937-1984 Big Twins BRUTE II EXTREME BELT DRIVES INSTALLATION INSTRUCTIONS

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Filed Under (Harley Davidson) by admin on 27-10-2010

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Remove the outer primary cover. Remove the front pulley, chain, compensator & chain adjuster Remove oil lines to primary and plug or clamp to prevent leakage. Cut the chain oiler hose 3 inches from the oil pump and permanently plug. All belts must be run dry without lubrication of any kind. Therefore, remove all oil from inside the primary covers. The spacer behind the front pulley should be removed prior to installing the belt drive. This spacer may or may not be required to correctly align the pulleys. If a spacer is needed for alignment, various sizes are available from your local Primo Belt Drives dealer (part number PX-1 =package of 6 various sizes). Install the front pulley supplied in the kit. Loop the belt around both pulleys to insure that you have the proper belt for your pulleys, then gently push the unit into place. Use the supplied washer & nut on the motor shaft. Torque the motor nut to 80-100 foot pounds. If installing a PC-1000-Aremove the clutch hub & clutch basket. On tapered shaft models check the fit on the shaft & the fit of the keyway in the hub. Install the key in the mainshaft, making sure it is firmly seated (use of super glue or threadlock in the keyway is helpful to keep the key from sliding out of the keyway during clutch installation). Tighten the clutch hub nut(left-hand thread) to 60-90 foot pounds. 1 After installing and adjusting clutch, track the belt by turning the pulleys. If needed use a straight edge between the front and rear pulleys to check alignment. Improper alignment of the pulleys will result in reduced belt life. Spacing the motor pulley outward will cause the belt to track towards the outer primary cover. If spaced too far out the belt will rub on the inside of the clutch shell. Before installing the primary cover be sure that everything inside clears both the outer and inner covers. In some cases a small amount of metal may need to be removed from one or more of the bosses on the inner or outer primary cover.

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