1982/03/22 Caterpillar

New Bracket Prevents Damage To Horn Wires{7303}

Usage:

All Series "
G"
Motor Graders

Description of Change: A new bracket is used in the air horn group and electric horn group on Series "G" Motor Graders. The new bracket, which is fastened to the steering pump, prevents movement of the horn retainer.

Also, in the air horn group two new fittings are used to make the assembly of the hose assembly and control valve easier.

Formerly, the horn retainer base was held in place with contact adhesive. If the adhesive broke loose it was possible for the retainer to turn and damage or break the horn wires.

Adaptable To: The new 5T4030 Bracket is adaptable to all Series "G" Motor Graders. The new 4S7606 Elbow and 5K2408 Nipple are direct replacements for the former 3D7587 Union, 5P3238 Nipple, and 3B6552 Elbow. It will be necessary to install the parts as shown in the illustration.

Location of new fittings and new position of hose assembly.

Location of 5T4030 Bracket.

Caterpillar Information System:

1982/03/22 Caterpillar Electric Starting Motors{1453,1407}

1982/03/22 Use 5P5195 Fuel Line Wrench Correctly{0612,1252}

1982/03/22 Engine Replacement{1000}

1982/03/22 Use Correct Torque On Hydraulic Valve Bolts, Nuts And Taperlock Studs{5050}

1982/03/22 Carbon Build-Up In Combustion And Inlet Areas{1058,1101,1105,1214,1104}

1982/03/15 Service Parts Available For 6G7650 Seat{7312,7307,7321}

1982/03/15 New Stem And Springs In Overspeed Valves Permit Operation Down Steeper Grades Without Track Motor Damage{5051,5451,5474}

1982/03/15 New O-Ring Seal Used On Cartridge-Type Relief Valves Has Better Resistance To Damage{5050,3200}

1982/03/15 Use The 6V6059 Microlite With The 6V2196 Inspection Microscope{0651}

1982/03/15 New Diaphragm Used In Fuel Ratio Control{1278}

1982/03/15 Difference Between Static And Dynamic Rack Settings Changed{0374,1257}

1982/03/15 New Crankshaft Has Wider Main Journals; Wider Main Bearings{1202,1203}

1982/03/22 Correct Use Of 6V2023 Flow Check Adapter Group Is Important To Prevent Damage To An Engine{0651,0654,1250}

1982/03/29 Parts Book Changes{0374}

1982/03/29 Location Of Sending Unit Changed To Improve Accuracy Of Water Temperature Indication{7453}

1982/03/29 FT1667 And FT1668 Beam Assemblies For Undercarriage Removal{0642,0643,4150}

1982/03/29 Multi-Piece Wheel Rims; Caution Must Be Used{4202,4201}

1982/03/29 Increased Clearance Between Hoist Cylinder Assembly And Rod{5102,7258}

1982/03/29 Twisted Port Plate Can Cause Excessive Case Drain From Piston Pump Or Motor{5058,5070}

1982/04/05 Use FT1631 Flare Nut Wrench For Connector In Bulldozer Lift Circuit{0610,0611,0623}

1982/04/05 Lubricant Recommendations Have Been Changed For Vehicular Products{0680,0374,0375,3004,1318,5060}

1982/04/05 New Outer Duo-Cone Seal Groups Used In Service And Parking Brake Groups{4208,4251,4267}

1982/04/12 New Clearance Specification Used In Torque Converter{3101}

1982/04/12 Use Correct Part Numbers For Main And Connecting Rod Bearings{1230,1203,1219}