1983/09/12 Caterpillar

New Dust Covers Available For Twin Disc IBF318 And IBF321 Rear Power Take-Off Clutches{3055}

Usage:

D348, D349, D398, D399, 3408, 3412 And 3500 Series Industrial Engines;
G399 Natural Gas Engines

Two new dust covers are available for use on the rear power take-off clutches used on those engines shown above. These covers can be installed on the bottom of the clutch housing to keep dust out of the clutch housing.

The new 4W2958 Cover can be used on the Twin Disc IBF318 Clutch Housing. The new 4W2959 Cover can be used on the Twin Disc IBF321 Clutch Housing.

To install the new covers over the opening (slot) in the bottom of the clutch housing, eight holes must be drilled and tapped in the clutch housing. Use the dust cover as a template to determine the location of the eight 5.20 mm (.203") holes. Use a 1/4"-20 NC tap to put threads in these holes.

Put 3S6252 RTV Silicone Adhesive/Sealant on the surface of the dust cover that will make contact with the clutch housing. Use eight S1614 Bolts and eight 4B5269 Washers to fasten the new covers in place.

Caterpillar Information System:

1983/09/12 New Larger Auxiliary Sea Water Pump Operates At Lower RPM{1371}

1983/09/05 Engine Maintenance Information Films Available{1318,1352,0375}

1983/09/05 Vent Hole In Water Temperature Regulator Cover Removed{1355}

1983/09/05 6V3100 Engine Timing Indicator Group May Have 6V9710 Or 6V2192 Transducer{0651}

1983/09/05 New Piston Oil Rings{1215}

1983/09/05 Larger Oil Pump Used To Give Better Clutch Cooling And Bearing Lubrication{3310,3302,3307}

1983/09/05 Replacement Counterweights And Information For Replacement Of Counterweights And Balancing The Crankshaft{1202,0652}

1983/09/05 Service Information Available For Altronic Ignition System{1552}

1983/09/05 New Inspection Report Forms Available{0336,0372,7550}

1983/08/22 New Governor Drive Gears And Weight Assemblies{1264}

1983/08/22 Improved Voltage Regulator Assembly Now Used{4450,4467}

1983/08/15 Replacement Parts And Service For 6V3021 Crimping Tool And 6V3022 Cable Cutter{0610}

1983/09/12 Parts Service Information For Pistons, Connecting Rods, Piston Pins And Rings{1214,1225,1215,1218}

1983/09/26 Oil Shield And Rotocoil Must Be Installed Together For Acceptable Oil Control{1109}

1983/09/26 Service Information For Woodward Governors{0374,1264}

1983/09/26 New Bearing Used On Main Shaft{3303}

1983/09/26 Product Identification Number To Replace Serial Number On Earthmoving Equipment{7557}

1983/10/03 Use 6V6070 Tool Group And New Adjustment Procedure For New Scroll Fuel System{0654,1264,1278}

1983/10/03 New Oil Pump Has Bypass Valve And Oil Return Passage Inside The Pump{1304}

1983/10/10 S.O.S Program Synopsis{1318,5068,3179,0652}

1983/10/10 New Connecting Rod And Main Bearings Used{1203,1219,1226,1227,1230}

1983/10/10 Changes Made To Identification Marks On Connecting Rod Assemblies{1218}

1983/10/10 New Service Centers For 6V3100 Engine Timing Indicator Group{0651}

1983/10/10 New Water Pump Oil Seal Prevents Leaks{1361}