Rivera Primo 1056-0002 User Manual

PC-1000-A PRO-CLUTCH INSTRUCTIONS_PC-1000-A PRO-CLUTCH#2A72D0.qxd 2/15/12 4:03 PM Page 1

HOME OF PRIMO BELT DRIVES	QUALITY & PERFORMANCE SINCE 1973

PRO-CLUTCH TM

1056-0002 / For All 1936-1984 Big-Twin Applications

I n s t a l l a t I o n I n s t r u c t I o n s

Congratulations, you have just purchased Rivera Primo’s Pro-ClutchTM, the best clutch upgrade in the world. Please follow the directions for a simple, trouble free installation!

If you have any questions about this installation please contact Rivera Primo and a knowledgeable Pro-ClutchTM technician will assist you! Thank you for purchasing a Pro-ClutchTM !

RIVERA PRIMO’s PRO-CLUTCHTM for early-model (1936-1984) Big-Twin motorcycles upgrades the clutch in two ways: First, by increasing the friction area by almost 50%. Second, by replacing the coil-spring clutch-pack with our proprietary diaphragm spring design. Diaphragm-spring operated clutches have proven to be more durable than typical coil spring clutch packs, when utilized in street & high-performance motor vehicle applications. PRO-CLUTCH TM installs quickly into the existing clutch basket (belt or chain) by removing the OEM hub and caged (loose) bearings, and installing the PRO-CLUTCHTM hub adapter assembly and clutch pack!

PRO-CLUTCH TM will easily transmit ALL your motor’s horsepower to the transmission without slipping or grabbing! Smooth, easy hand-control makes this high performance PRO-CLUTCHTM (formerly PC-1000-A) a must for any high-performance 1936-1984 Big-Twin Harley motorcycle!

Rivera Primo Inc. 12450 Whittier Blvd., Whittier, CA 90602

TEL: [phone] FAX: [phone] / www.riveraprimoinc.com / E-mail: [e-mail]

1	1108-0007 / Revised 2-2012

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SAFETY FIRST

When performing work on any motorcycle, and prior to starting this installation disconnect BOTH battery cables! If the motorcycle is on a lift, fasten it securely to prevent it from falling! Read and become familiar with the Pro-ClutchTM instructions before starting. For safety, use only the proper tools for this installation!

STEP 1:

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1A

This is the Rivera Primo Pro-ClutchTM. Get familiar with it before disassembling it for installation! Strip the clutch basket of all the OEM clutch components such as bearing cage & bearings, clutch plates, pressure plate, coil springs etc!

Note the position of the new lock-clips P/N1058-0106

1058-0111 (pair)

1058-0106 (individual)

STEP 2:

To prepare the Pro-ClutchTM for installation disassemble the pressure plate

assembly and clutch pack while noting the exact sequence of the components for reference during reassembly! See the exploded view on page 6 of this installation guide.

STEP 3:

Remove the 6 Allen head bolts and the lock-ring at				3
the rear of the adapter! Keep track of ALL the Allen
bolts!

STEP 4: Install the Rivera Primo Pro-ClutchTM hub & adapter into the OEM clutch basket. Use Rivera Primo’s “Blue” thread lock on the Allen bolts and tighten to 80 INCH POUNDS (not foot pounds!)

4	4A	4B

Install the adapter into the basket! Install the lock-ring on the rear of the adapter!!

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4C

STEP 4C:

Install the clutch basket/hub assembly onto the transmission main-shaft using two drops of Rivera’s Blue threadlock or equal and tighten the clutch hub nut to 50-60 footpounds of torque.

5

STEP 5:

First plate installed is the .120” steel plate. It goes all the way to the rear of the clutch hub

6

STEP 6:

Next clutch in is a friction(as shown above) then steel, alternating until all the plates are installed!

ATTENTION!

If the clutch is to be operated in an oil bath, it is recommended that the friction plates be soaked in primary lubricant for 15-20 minutes. Wipe off excess lubricant prior to installation.

Rivera Pimo recommends using Dextron III ATF (Automatic Transmission Fluid) in the primary for best performance with the Pro Clutch.

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