1997/10/06 Caterpillar

Do Not Install 16 Ply, 20 Ply, Or L-5 Tires On Single Piece Rim Assemblies{4202,4209}

Usage:

910F (1SF, 1YK),
918F (3TJ, 2CK, 5DL),
924F (5NN, 6MN, 4YN, 7PN),
928F (2XL, 8AK),
914G (7ZM, 9WM) Wheel Loaders;
IT12F (1KF, 6RS),
IT14F (4EL),
IT18F (6ZF, 5EJ),
IT24F (4NN, 6KN),
IT28F (1JL, 3CL),
IT14G (8ZM, 1WN) Intergrated Toolcarriers

Reports have been received of 16 ply rated, 20 ply rated, and L-5 tires being mounted on Caterpillar single piece rim assemblies. Neither Caterpillar nor our tire suppliers recommend this configuration.

Servicing this configuration is a concern. The stiff sidewalls of the 16 ply, 20 ply, and L-5 tires make mounting the tires difficult. Dismounting the tires from the single piece rim assemblies require the tire to be destroyed or the rim assembly to be damaged or destroyed.

From a service standpoint, mount tires on the rim assemblies with a tire ply rating that Caterpillar and the original equipment tire suppliers recommend.

Caterpillar Information System:

1997/10/06 Adjustment Procedures Formerly Found Only In Specification Service Manual Modules Have Been Added To Testing And Adjusting Service Manual Modules{0374,0375}

1997/10/06 New End Covers Eliminate Seal Spacer Plates For Steering Control Valve Group{4307}

1997/10/06 Orifice Plate Can Be Removed From 8X-0234 Oil Cooler Lines Group In 793 And 793B Off-Highway Trucks{4257,1365}

1997/10/06 Resistor Harness Reduces Fan's Speed Sensor Faults{1408,1356,1350,1000}

1997/10/06 New Special Edition Is Available For 768C, 772B, 776C, and 776D Tractors; 771C, 771D, And 775D Quarry Trucks; 769C, 769D, 773B, 773D, 777C, And 777D Off-Highway Trucks{0374}

1997/10/06 New Special Edition Is Available For 784B Tractor; 785B, 789, 789B, 793, 793B, and 793C Off-Highway Trucks{0374}

1997/10/06 Improvements Made To H-Series Motor Graders{7475,1408,1429,3073,7304,7309,7450,7451}

1997/10/06 New Differential Lock/Unlock Indicator Light Now Used With H-Series Update{7450,3264,3270}

1997/10/06 New Cab Positioning Procedure For 24H Motor Graders{7301}

1997/10/06 Rotated Cylinder Cap Changes Location Of Hydraulic Line To Protect Line On Blade Lift Cylinder Group{5057,5102}

1997/10/06 Shaft Seal Leaking In Implement Pump Groups{5070}

1997/10/06 New 100 Amp Alternator Now Available{1405}

1997/10/06 Fuel Level Senders Improved To Prevent Open Circuit Conditions{7481}

1997/10/06 New Films Used With Caterpillar Monitoring System{7490}

1997/10/06 Service Charts And Decals Available{0374,0375}

1997/10/06 Proper Welding Procedure On Machines And Engines With Electronic Controls{1400}

1997/10/13 Improved Transmission Oil Dipstick Tube Assembly And Bracket Used{3081}

1997/10/13 Improved Conditioner Condensation Drains{1808,7257,7320,7343}

1997/10/13 Improved Seat Shock Absorber And Arm Assembly Is Available{7324}

1997/10/13 Improved Films And Plates Are Attached With Fasteners{7405}

1997/10/13 Possible Downloading Problem When Truck Payload Measurement V8.0 Is Used With Windows '95{7494}

1997/10/13 Shims Added To Some Off-Highway Truck Front Suspension Mounting Groups{7200,7201}

1997/10/13 Cup Holder No Longer Used In Off-Highway Truck Transmission Control Consoles{3168,3030}

1997/10/13 Cylinder Head For Front Suspension Cylinder Group Repositioned To Give Clearance Between Monitoring Sensor For Truck Payload And Truck Frame{7201,7494}