Presentation on theme: "Clutch Installation and Maintenance 15.5 Easy Pedal and Heavy Duty Solo."— Presentation transcript:
Clutch Installation and Maintenance 15.5 Easy Pedal and Heavy Duty Solo
Clutch Basics Provide means to disengage engine Provide torsional vibration protection Three factors that determine Clutch capacity 1) Friction material 2) Surface area 3) Clamp load
Cover Assemblies Contains Pressure Plate Determines plate load Adjustable or Non-adjustable Release bearing Does not affect torsionals Easy-Pedal Plus ® 14” and 15.5”Heavy-Duty Solo™
Driven Discs “Dampers” Torsional damper “Soft Rate” Number of springs Number of facings V.C.T. ™ 7-Spring
Clutch Brakes 1-3/4 and 2.00” Single piece “Torque Limiting” Two piece - non torque limiting
How They Work Together
What Wears and Why Adjust for It?
When to Replace the Clutch Eaton clutches should be replaced when internal adjustment can not correct for a loss of free-pedal or can not compensate for a slipping clutch NOT: When you think it may slip soon When you think you have adjusted it too much When you think the lock strap wont hold the ring
Easy-Pedal Plus ® ” Industry standard clutch Large application range 1050 to 2050 Lb-Ft –8-Spring –7-Spring –9-Spring –10-Spring –V.C.T.™
Clutch adjustment 15 1/2” Two Plate Angle spring/Easy Pedal Plus Using the internal adjustment of the clutch Set the bearing to clutch brake clearance, 1/2 to 9/16”.
Clutch adjustment Check/set the clearance between the yoke tips and the bearing wear pads for a minimum 1/8” clearance, the truck linkage is used to increase or decrease the clearance.
Clutch adjustment Insert a.010” feeler gauge between the bearing and the brake, depress clutch pedal to the end of it’s stroke to verify clutch brake squeeze.
Clutch adjustment The clutch brake will be squeezed if the total pedal stroke exceeds the 1/8” and the 1/2” settings. If not you will need to gain more linkage movement.
Clutch adjustment If the brake is not being squeezed, do not change the 1/2” and 1/8” settings. Check linkage for worn components. Verify linkage is reassembled in correct hole locations. Increase pedal stroke (raising upper and lowering lower pedal stops).
Clutch adjustment Measure and record the free pedal in the cab-this is the normal free pedal for this truck (never use the in-cab free pedal to set up the clutch).
Clutch Lubrication In order to properly lubricate the release bearing bushings, grease must purge from the rear of the release bearing.
Spicer Solo Product Family 15.5” HD Eaton Spicer Solo 14” MD Eaton Spicer Solo
Spicer Solo Heavy-Duty
Spicer Solo Medium-Duty
How It Works Pressure Plate Bracket Release Bearing Shipping Bolt Plate Spacer Cam Spring Cams
Plate Spacer Controlled Gap Cams Pressure Plate How It Works
How a MD Solo Works Front Driven Disc Engine Flywheel Rear Driven Disc Intermediate Plate Adjusting ring Pressure Spring Release Bearing Retainer Pressure Plate
Clutch Failure analysis
Yoke Bridge Rubbing into Cover Worn or missing clutch brake. Excessive wear on release bearing pads. Improper setup of linkage system.
This Clutch was Properly Adjusted Internally By using the adjusting ring, because each of the 6 levers has more than one witness mark (or lever fulcrum point).
Bent/Broken Kwik-Adjust Mechanism From not releasing the load from the pressure plate before making an adjustment.
Release Bearing Assembly Broke Away from Release Sleeve Due to lack of periodic lubrication. Failure to fully release or ride clutch pedal.
Oil Soaked Ceramic Disc Leaking transmission and or leaking rear main engine seal.
Broken Drive Pin Missaplication of the clutch. Unequal loading of the drive pins.