1977/05/25 Caterpillar


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

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:

1977/05/25 Flare Nut Wrenches Available
1977/05/25 Shorter Bolts Now Used In Exhaust Manifold Support
1977/05/25 New Rotor Assembly For Engine Oil Pump Has A Drilled Passage For Better Lubrication Of Oil Pump Bearing
1977/05/13 New Fuel Nozzle Assembly Available
1977/05/13 Gasket For Water Temperature Regulator Now Has Larger Vent Passage
1977/05/13 Improved Keystone Piston Assembly
1977/05/13 Improved Air Cleaner Group
1977/05/13 Guide Assembly For Dipstick (Oil Level Gauge) Now Has Thicker Walls
1977/05/13 New Crankshaft Front Seal And Wear Sleeve Permit Crankshafts With Seal Wear To Be Used Again
1977/05/13 New Information On Caterpillar Cooling System Inhibitor
1977/05/13 New 5P4185 Fuel Pump Timing Pin To Be Used Only On 3408 And 3412 Engines
1977/05/03 New Socket Assembly To Tighten The Bolts That Fasten The Sleeve Levers To The Sleeve Shaft
1977/05/25 Orifice In Oil Supply Passages Of BrakeSaver Stator Prevent Seal Leakage
1977/05/25 Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures
1977/05/25 Parts In 1P3075 Seal Puller Group Available Separately
1977/06/08 Improvements To Fuel Injection Pump And Governor
1977/06/22 Water Pump Has Stronger Pulley
1977/06/22 New Adapter Group For Use With Fuel Injection Test Bench
1977/06/22 List Of Service Publications
1977/06/22 Fabricated Tools For Assembly And Disassembly Of 7271 Marine Transmission
1977/06/22 New Gasket Used At The Outlet Flange On Heavy-Duty Air Cleaner Group
1977/06/22 Stronger Guide Assembly For Oil Level Gauge Used On Caterpillar-Built Engines In Massey-Ferguson Tractors
1977/06/29 5P7333 Tool Group Available For The Repair Of Loose Bridge Dowels On Cylinder Heads
1977/06/29 New Aftercooler Housings And Covers Have Improved Design
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