1981/01/19 Caterpillar

New Puller Tools Available For Removal Of Steering Cylinder Pin{0621,4303,7058}

Usage:

824C Wheel Tractors, 825C And 826C Compactors

It is not possible to use existing puller tools to remove the steering cylinder clevis pins on the above machines for two reasons:

1. The location of the steering cylinder rear mounting brackets on the vehicle frame.

2. The tapered pins have no puller holes.

New puller tools for pin removal include the FT1578 Puller Bars (upper and lower), two 5P4776 Puller Studs, two 1A1935 Nuts and two 3K5234 Washers. These tools are used with the 5P2997 Hydraulic Puller.

To install the tools, remove the bolt and retainer. See Illustration 1. Install the bolt in the pin without the retainer. Install the tools as shown in Illustration 2.

Illustration 1. Steering cylinder pin.

Illustration 2. Correct installation of puller tools.

The hydraulic force of the puller will cause a force against the bolt. This force will push the tapered pin from the bore. A recess (opening) in the puller lets the pin move into the puller a small amount until the pin is loose. The pin can then be removed by hand.

Drawings of the FT1578 Puller Bars are available from your Division Service Manager.

Caterpillar Information System:

1981/01/19 Steel Turbocharger Steam Vent Tube Assemblies Have Longer Service Life Than Copper Tube Assemblies{1052,1053,1380,1000}

1981/01/19 New Connecting Rod And Main Bearings Have A Thicker Coating (Layer) Of Lead-Tin Overlay{1230,1219,1203}

1981/01/19 FT1576 Puller Plate Used For Removal Of Crankshaft Gear; Drawings For FT1576 Puller Plate Can Be Used For Modification Of Existing Puller Plate{0621,1204,1202}

1981/01/12 Improvements Made To 5P9718 And 6V186 Disc Pads Used During Gasket Removal{0675,0670}

1980/12/22 Four Fabricated Tools Available For Use During Service Of Fuel System Timing Gear{0621,0612,1206,1253,1207}

1980/12/22 Installation Tips For Snow Wing{6150,7051,1356,7155}

1980/12/22 New Oil Pan Gasket Has Silicone Bead For Better Seal{1302}

1980/12/22 Exhaust Elbow Support Improved{1059,1061}

1980/12/22 Tires Are Filled With Nitrogen (N2){4203}

1980/12/15 Improvements To Selector And Pressure Control Valve Group Give Operator Better Control When Manual Modulation Pedal Is Depressed (Pushed In){3167,3162,3157,3152}

1980/12/15 Replacement Timing Belts And Variable Belt For Fuel Injection Test Benches Available From Caterpillar{0652,1250}

1980/12/15 Be Sure To Cut The Center Gasket Even With Top Surface Of Oil Pan Sections To Prevent Oil Leakage{1302}

1981/01/19 Thicker Layer Of Chrome Now Used On Governor Spring Guide To Extend Its Service Life{1264}

1981/01/19 6V3141 And 6V3142 Puller Plates Available For Removal Of Tube And Gland From Front Suspension Groups{7201,0621}

1981/01/19 Inspection And Test Procedures To Follow When Fuel Ratio Control Does Not Operate Correctly{1278}

1981/01/19 New Sure Seal Electrical Connectors Used In Electrical Wiring Harnesses; Use 6V3000 Seal Repair Kit To Repair Sure Seal Electrical Connectors{0611,1408}

1981/01/19 Green Dye (Color) Added To Transmission Oil For Easier Identification Of Leaks{3004,3067,3179}

1981/01/19 Be Sure You Assemble The Turbocharger Lubrication Valve Correctly{1309,1052,1300}

1981/01/26 Ways To Prevent Damage To Spark Ignited Industrial Engines When Hydrogen Sulfide Is Present In The Fuel{1000,1280,1318,1350}

1981/01/26 Improved Tach Drive Adapter Has Step In Shaft To Keep Coupling Engaged{0651,0653}

1981/01/26 6V3150 Engine Pressure Group And 6V3121 Multitach Group Are Available For Testing Engines{0650,1000}

1981/01/26 Washers Added To Prevent Broken Bolts In Stabilizer Rod Joints (Connections) On Rear Axle Housing{3260,3268}

1981/01/26 Use Scheduled Oil Sampling To Find Change Intervals For Hydraulic Oil{5068}

1981/01/26 Use 2P2333 Manifold Sealer On Exhaust Manifold Slip Joints (Junction) During Assembly{1059}