Rivera Primo Brute II Extreme - Manual

INSTALLATION INSTRUCTIONS
BRUTE II EXTREME TM BELT DRIVES
1-1/2” Wide . .11mm Belt . . Closed Primary . . Electric & Kickstart Models
Fits 1937-1984 Big Twins
NOTE:
Primo Belt Drives are designed and engineered to correctly fit stock Harley-Davidson motorcycles. Aftermarket frames, primary
covers engine shafts, or clutch hubs may cause installation problems; also bent frames, sagging motor mounts, worn transmission
mounts and other defects may cause shortened belt life due to incorrect pulley alignment.
2108-0022
ATTENTION INSTALLER...
Prior to starting the following installation procedure make sure the motorcycle is secured properly, and that the
battery is removed to prevent accidental start-up. Also please read and familiarize yourself with the instructions.
Use only the correct tools for a safe, long-lasting installation.
Kit shown assembled with optional Pro-Clutch TM PC-1000-A
INSTALLATION:
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 cor-
rectly 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-A remove 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.