1980/09/22 Caterpillar

Use Correct Procedures To Charge Suspension Cylinders With Oil {7201}

Usage:

768 ( 79S, 2X ),
772 ( 11S, 64W ),
776 ( 14H ) Tractors;
769 ( 99F, 35W, 1X ),
773 ( 63G, 63W ),
777 ( 84A ) Trucks;
772 ( 10S ),
776 ( 14W ) Wagons

Some failures of suspension cylinders have been caused by an oil charge that was not correct. The procedure to charge the suspension cylinders with oil is similar on the above models, but the quantity of oil is different. Make reference to the Service Manual for procedures to use when the cylinders are charged.

Some suspension cylinders are charged with oil until they are filled, while the cylinder is retracted. Others are filled with enough oil so the cylinder is extended 25.4 mm (1.0") after they are filled. The chart which follows shows the correct fill for the suspension cylinders on each model.

Caterpillar Information System:

1980/09/22 Do Not Use Room Temperature Vulcanizer Compounds Or Silicone Rubber Cements On O-Ring Seals In Engines; Do Not Use Too Much As Gasket Material {1000,7555}

1980/09/22 New Clamp Gives Protection To Tire Valve Assembly {4201,4202,4208}

1980/09/22 Install New Damper Assemblies During Assembly Of Radiator And Guard {1353,1381}

1980/09/22 Do Not Use Planet Gears Made From Forgings And Bar Stock Together In A Torque Divider Transmission {3110,3113,3114,3116,3118}

1980/09/22 6V3071 Seal Guide Keeps Seal In Position During Installation Of Transfer Pump {0620,1256}

1980/09/15 Use Only Caterpillar Water Separator Elements{1263}

1980/09/15 Reference List Of Pistons Used With The Different Types Of Connecting Rods{1214,1218}

1980/09/15 Use Only CC Or CD Oil In Final Drives{4070}

1980/09/15 Improvements To Final Drive Group{4091,4054,4059,4055}

1980/09/15 Special Cup Plugs For Use In Oversize (Larger Than Standard Size) Bores In Valve Rocker Arm Shafts{1102}

1980/09/15 Reverse Flow Check Valves And Check Valves With A Groove Can Not Be Used In Place Of Each Other{1251,1272,1254}

1980/09/15 6V2107 And 6V2110 Drive Adapter Assemblies Available To Connect Sleeve Metering Fuel Systems To Fuel Injection Test Bench{0652,1250}

1980/09/22 Install A New Oil Filter Element, Clean The Oil Lines And The Remote Filter Base; Turn The Engine Until The Oil Gauge Shows Pressure Before Starting A Rebuilt Engine {1307,1318}

1980/09/29 FT1535 Idler Bearing Puller Available{0621,4167,4159}

1980/09/29 Woodward 2301 Speed Control (8N1731 Speed Control Group) Can Be Adapted For Use As Field Test Instrument{0651,1264,1265,1289}

1980/09/29 Some Test Procedures And Specifications Changed For 9L6884 Fuel Injection Nozzle Assemblies{1254,0651}

1980/09/29 Use Starter To Turn Crankshaft For 30 Seconds Or Until Oil Pressure Gauge Shows Pressure, Before Engine Is Started{1300,1450}

1980/10/06 Fretting Material Must Be Removed Before Installation Of New Bearings{1202,1203,1218,1219,1201,1230}

1980/10/06 New Timing Advance Weight Used{1272,1288,1286,1264}

1980/10/13 6V3184 Brush Group Available To Clean Crankshaft Oil Passages{0622,1202}

1980/10/13 6V2156 And 6V2157 Link Brackets Now Available To Lift Heavy Loads{0644}

1980/10/13 New Tools Available For Installation Of Crankshaft Seals And Wear Sleeves{0622,1160,1161}

1980/10/13 6V3116 Adapter Group Is Available For Use On Fuel Injection Test Bench{0652,1251}

1980/10/13 Improved Temperature Control Switch Used On Machines Equipped With Air Conditioner Units{7320}