1977/05/30 Caterpillar

Self Locking Bolts Or Hardened Washers Used In Place Of Sheet Metal Locks{3300}

Usage:

3192, 7251, 7261 Marine Transmissions

Description of Change: Self locking bolts or hardened washers are now used in place of the sheet metal locks in the above marine transmissions. Removal of the sheet metal locks prevents possible damage that can be caused if the ears break off the locks inside the transmission.

A special self locking bolt kit is released for conversion of earlier transmissions. The new kit has all the bolts and washers needed for conversion of any of the above models. The recommendation is to use the bolt kit for replacement of the locks during transmission reconditioning.

Adaptable As: Direct replacement when the necessary parts are used together. The 5N4179 Self Locking Bolt Kit can be used for replacement of the sheet metal locks in all earlier 3192, 7252 and 7261 Marine Transmissions.

Caterpillar Information System:

1977/05/30 New Gasket Used At The Outlet Flange On Heavy-Duty Air Cleaner Group{1051}

1977/05/23 Method Of Piloting Power Generator To Engine Improved{1156,1157,4450}

1977/05/23 Install New Plugs To Prevent Oil Leaks At The Oil Filter Base{1306}

1977/05/23 Orifice In Oil Supply Passages Of BrakeSaver Stator Prevent Seal Leakage{1155}

1977/05/23 Parts In 1P3075 Seal Puller Group Available Separately{0621,1160,1161}

1977/05/16 Flare Nut Wrenches Available{0610}

1977/05/16 Use Special Instruction Form SEHS6929 For Repair And Maintenance Information On All Roll-Over Protective Structures (ROPS){7323,7325}

1977/05/16 Stronger Guide Assembly For Oil Level Gauge Used On Caterpillar-Built Engines In Massey-Ferguson Tractors{1300}

1977/05/16 New 5P4185 Fuel Pump Timing Pin To Be Used Only On 3408 And 3412 Engines{0650,1257}

1977/05/16 Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures{1209}

1977/05/09 New Fuel Nozzle Assembly Available{1254}

1977/05/09 New Information On Caterpillar Cooling System Inhibitor{1350}

1977/05/30 Improvements To Aftercooler Water Lines{1063,1380}

1977/05/30 Fabricated Tools For Assembly And Disassembly Of 7271 Marine Transmission{0621,3300}

1977/06/06 Improvements To Fuel Injection Pump And Governor{1286}

1977/06/06 New Tool For Installation Of Tandem Drive Chains On All Series G Motor Graders{0621,4063}

1977/06/06 Water Pump Has Stronger Pulley{1361}

1977/06/06 5P7386 Seal Driver For Hydraulic Pumps And Swing Motor{0622,5058,5070}

1977/06/13 New Adapter Group For Use With Fuel Injection Test Bench{0652}

1977/06/20 5P7333 Tool Group Available For The Repair Of Loose Bridge Dowels On Cylinder Heads{0663,1101}

1977/06/20 Socket For Removal And Installation Of Fuel Injection Pump Bushings is Now Stronger{0612,1253}

1977/06/27 More Of The Oversize (Larger) Cast Iron Seal Rings Are Available For Clutch Housings And Clutch Pistons{3169,3170}

1977/06/27 Correct Rebuild Kits Must Be Used For Repair Of Earlier And Later Water Pumps{1361}

1977/06/27 New Aftercooler Housings And Covers Have Improved Design{1063}