1980/11/17 Caterpillar

6V4021 Piston Ring Compressor Group Available{1215,1214,0622}

Usage:

All 3512 Engines

The 6V4021 Piston Ring Compressor Group is a band-type piston ring compressor for use during service of 3512 Engines.

The 6V4021 Piston Ring Compressor Group is made up of a 6V4027 Handle Assembly and a 6V4028 Band Assembly.

The 6V4027 Handle Assembly works as a pivot on the 6V4028 Band Assembly for a fast clamp and easy release of the band. The knob in the handle assembly permits adjustment of the 6V4021 Piston Ring Compressor Group, and a lock is used to prevent release of the compressor by accident.

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When the 6V4021 Piston Ring Compressor Group is installed on a piston, the knob must be turned to tighten the tool on the piston, and the lock must be used. If this is not done, it is possible for the piston and connecting rod to come out of the tool when the assembly is lifted by the handles on the tool.

After the connecting rod and piston are lowered into the cylinder liner, loosen the band slightly to permit the piston to slide into the liner.

The 6V4028 Band Assembly has two handles which permit the user to lift and carry the piston and rod when the 6V4021 Piston Ring Compressor Group is installed on a piston.

The 6V4021 Piston Ring Compressor Group.

Caterpillar Information System:

1980/11/17 Two Thinner Spacers Available For Use During Adjustment Of Off-Engine Timing Dimension{1251,0653}

1980/11/17 Coolant Conditioner Elements Are Now Available For 3208 Engines{1350}

1980/11/17 Check For Correct Spring Retainer On Oil Pump Bypass Valve When Oil Pan Is Removed{1315,1302}

1980/11/17 Improved Cable Assembly For Mechanical Shut-Off Group{7418}

1980/11/10 6V3147 Main Bearing Wrench Now Available{1203,0612}

1980/11/10 Special Tools Available To Tighten Retainer Nuts For Clutch Drive Hubs Of 7211 And 7221 Marine Transmissions{0612,0626,3302}

1980/11/10 Double-Check Those Dimensions{0374}

1980/11/03 Spider And Bearing Assembly Must Be Correctly Installed In Drive Shaft-To-Power Control Box Universal Joint{5234,5204,5201}

1980/11/03 FT1523 Fuel Oil System With External Filter Is Available{0652}

1980/11/03 Two Replacement Lights Available For 5P7277 Voltage Tester{0651}

1980/11/03 FT1514 Lubrication Manifold Permits Lubricant To Be Added To The Output Shaft Bearings Without Removal Of Rear Cover From Fuel Injection Test Bench{0652}

1980/11/03 Pulley With Keyway Can Be Used When Replacement Alternator Is Installed{1405}

1980/11/17 Tee-Test Plug And Pressure Tap (Connection) Plugs Can Be Tightened To A Higher Torque To Prevent Leaks{5050,0651}

1980/11/17 Use Dust Cap To Prevent Freon Leakage From Air Conditioner; Cap Is Available As Replacement Part{7320}

1980/11/17 Some Remanufactured 3406 Engines Have The Wrong Reference Serial Number On The Identification Plate{7557,1000}

1980/11/24 New Decals Permit Easier Identification Of Fuel System Settings On Most Truck Engines{7557}

1980/11/24 New Aftercooler Core Has Copper-Nickel Tubes For Increased Strength{1063,1064}

1980/11/24 Use Fluid-Type Vibration Damper To Control Vibrations{1205,3305}

1980/11/24 New Gasket Improves Operation Of Shut-Off Groups{7418,7403}

1980/11/24 6V4008 Valve Seat Extractor Now Available{1103,0622}

1980/11/24 Replacement Wheel Available For Service Of 6V97 Engine Stand Group{0626}

1980/12/01 Direct Inquiry Service Information Retrieval System (SIRS) Available To U.S. And Canadian Dealers{0374}

1980/12/01 Exhaust Manifold And Air Lines Groups Changed To Prevent Exhaust Leakage And Damage To Manifold Gaskets And Mounting Studs{1059,1061}

1980/12/01 Larger Plug Used In The Ends Of The Rocker Arm Shaft Assembly{1102}