1977/04/25 Caterpillar

New Socket Assembly To Tighten The Bolts That Fasten The Sleeve Levers To The Sleeve Shaft{0621,1250}

Usage:

All Engines Equipped With Sleeve Metering Fuel Systems

When the sleeve levers are adjusted correctly, the bolts that fasten them to the sleeve shaft(s) must be tightened to a torque of 24 ± 2 lb in (2.70 ± 0.25 N·m). A 5P7253 Socket Assembly is now available to tighten these bolts to the correct torque. Formerly, the only tool available for this purpose was an Allen wrench. It was difficult to use an Allen wrench and it was possible to tighten the bolts to a wrong torque. The use of a torque wrench with a 3/8" drive and the 5P7253 Socket Assembly prevents this.

The 5P7252 Bit is available separately so a complete 5P7253 Socket Assembly does not have to be ordered if the bit breaks. The 5P7253 Socket Assembly is adaptable to all 9/64" hex socket screws.

Location of sleeve levers and sleeve shafts.

5P7253 Socket Assembly.

Caterpillar Information System:

1977/04/25 Revision Of Engine Data Sheet Gives Important Information On Single-Bearing Generators Assembled To Cat Engines{1156,4450,0354}

1977/04/25 Improved 5P3000 Engine And Transmission Shipping Stand Assembly; Modification Available For Stands Already In Use{0640}

1977/04/25 New Oversize Connecting Rod Bearings Have Improved Design And Material{1219}

1977/04/25 New Piston Pin Bearing Used In Connecting Rod Assembly{1218}

1977/04/25 Alternator Groups With Slower Drive RPM Used Again{1205,1405}

1977/04/18 Guide Assembly For Dipstick (Oil Level Gauge) Now Has Thicker Walls{1300}

1977/04/18 Gasket For Water Temperature Regulator Now Has Larger Vent Passage{1355,7555}

1977/04/18 Stronger Material Used In Undersize Connecting Rod Bearings{1219}

1977/04/18 New Crankshaft Front Seal And Wear Sleeve Permit Crankshafts With Seal Wear To Be Used Again{1151,1160}

1977/04/18 Tools To Remove Wear Sleeves From Crankshafts{0621,7558}

1977/04/11 New Diaphragm Used In Brakesaver Control Valve{1159}

1977/04/11 New Shaft Assemblies Used For Forward And Reverse Clutch And Stronger Nipple Used At Oil Pump{3302,3306,3307,3310,3314}

1977/05/02 Improved Cylinder Block With Spacer Plate Used With New Cylinder Heads, Cylinder Head Gaskets, Cylinder Liners And Timing Gear Housing{1101,1162,1201,1216}

1977/05/02 Improved Keystone Piston Assembly{1214,1216}

1977/05/02 Special Tools For Complete Repair Of Water Pump In Direct Injection Engines{0620,1361}

1977/05/09 Special Torque Wrenches Use Noise As Indication Of Correct Torque Application{0614}

1977/05/09 New Rotor Assembly For Engine Oil Pump Has A Drilled Passage For Better Lubrication Of Oil Pump Bearing{1304}

1977/05/09 Shorter Bolts Now Used In Exhaust Manifold Support{1059}

1977/05/09 Improved Air Cleaner Group{1051}

1977/05/09 New Information On Caterpillar Cooling System Inhibitor{1350}

1977/05/09 New Fuel Nozzle Assembly Available{1254}

1977/05/16 Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures{1209}

1977/05/16 New 5P4185 Fuel Pump Timing Pin To Be Used Only On 3408 And 3412 Engines{0650,1257}

1977/05/16 Stronger Guide Assembly For Oil Level Gauge Used On Caterpillar-Built Engines In Massey-Ferguson Tractors{1300}