1989/09/18 Caterpillar


Stronger Bracket Assembly Used In Circle Groups{6150,6154}

Usage:


12G ( 61M, 3WC ),
120G ( 87V, 11W, 4HD ),
130G ( 74V, 12W ),
140G ( 72V, 13W, 5MD ),
160G ( 4JD ) Motor Graders

Description of Change: Stronger bracket assemblies are used in the circle groups on the above motor graders. The new brackets are wider and are bolted to the guards with two bolts. See Illustration 1. The former narrower brackets were fastened to the guards with just one bolt. Because they are wider and bolted to the guards with two bolts, the new brackets will help prevent damage to the guards.


Illustration 1. Location of the new 8X2507 Bracket Assemblies in typical circle group.

Adaptable To: The new 8X2507 Bracket Assembly replaces the former 8W5232 Bracket Assembly in the circle groups on the above motor graders. The new 8X2507 Bracket Assembly can be installed on the guards in circle groups on motor graders shown in the chart if a second slotted hole (for each bracket) is added to the guard. Illustration 2 shows the locations and dimensions for the slotted holes.


Illustration 2. Location and dimensions of additional slotted holes in guard for mounting new 8X2507 Bracket Assemblies.

Caterpillar Information System:

1989/09/18 Improved Undercarriage Has Increased Wear Life{4155,4154,4175}
1989/09/11 Plasma Top Piston Rings Replace Chrome Rings{1215,1214}
1989/09/11 Be Sure To Tighten Fuel Injection Line Clamps To The Correct Torque{1252}
1989/09/11 New Key And Pin Assembly And Axle Shaft Used In Lower Rear Drive Assembly{3259}
1989/09/11 Repair Parts And Troubleshooting Procedures For Grade And Slope Controls{5645,7220}
1989/09/11 New Setscrew For Retainer Collar At Drive Axle Bearing Assembly{3278}
1989/09/11 New Seal Retainer In Differential And Bevel Gear Groups{3280}
1989/09/11 New Seals Available For The Input And Output Shafts On Differential And Bevel Gear Groups{3253}
1989/09/11 Intermediate Cylinders In Telescoping Hoist Cylinder Groups Changed To Cylinder Assemblies{5102}
1989/09/11 Converting A Transmission For A 785 Truck For Use In A 789 Truck{3150,3190}
1989/09/11 New Plate Used In Extension Stick Group{6502}
1989/09/11 New Flywheel Housing Uses No Gasket{1157}
1989/09/18 New Retraction Plate Available As Service Replacement On Variable Displacement Piston Pumps{3203,5070}
1989/09/18 Radio Interference With Electronic Control Systems{7338}
1989/09/18 Tightening Procedure For Turbocharger Compressor Nut{1052,1060}
1989/09/18 New Design Alternator Belt Used{1405,1406}
1989/09/25 New Oil Level Sight Gauge Plates Used In Hydraulic And Transmission Oil Tanks{3014,5056}
1989/09/25 New Engine Magnetic Pickup Assembly (Speed Sensor){3175,7450}
1989/09/25 New Cover And Tandem Groups Used{4062,4064,4071}
1989/09/25 Be Sure To Use Correct Seal In Hydraulic System Piston Pump: Correction To Parts Books{0374,5070}
1989/09/25 Baffle Used To Help Decrease Temperature In Operator's Compartment; Blower Fan Spider Assembly Available{7300,1356,1374}
1989/09/25 Procedures For Door Hinge Repair{7308}
1989/09/25 Elongated Holes In Main Frame Help Align Rotor Drive Transmission{3006}
1989/09/25 New Conveyor Hydraulic Cylinder Assembly Used; New Cup Seal Available{5102,6628,7562}
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