New Cover Used On BrakeSaver Control Valve{1159}
Usage:
3406 ( 92U ),
3406B, 3408 and 3408B Truck Engines
Description of Change: A new cover is used on the BrakeSaver control valve. The sharp edges on the air ports inside the former cover could cause wear on the diaphragm. This could result in failure of the diaphragm. The air ports on the inside of the new cover have been moved to an area where the diaphragm can not contact them.
Adaptable To: The new 7C725 Cover is a direct replacement for the former 6P8600 Cover in the 9N5530 BrakeSaver Control Valve Group used on 3406 (92U), 3406B. 3408 and 3408B Truck Engines.
Location of the 7C725 Cover in the 9N5530 Brakesaver Control Valve Group.
Caterpillar Information System:
1986/12/15 Silicone Water Seal Available{1101}
1986/12/15 Avoid Oil Contact With New Water Passage Seals Used In Cylinder Head Groups{1100}
1986/12/15 Check For Dirt Before Replacing Pyrometer Switch{1050,7466}
1986/12/15 New Track Press Assembly Specifications Decals Available{4150}
1986/12/15 How To Use Literature References In Column Three of the NPR (Numerical Parts Record){0374}
1986/12/01 Improved Retaining Bushing In Fuel Injection Pump {1251,1250}
1986/12/01 Use Correct Pistons And Rings For 3406B Truck Engines {1214,1215}
1986/12/01 Hour Meters - Mechanical Versus Electronic {7480,7478}
1986/12/01 Product Support Literature For Military Machines {7567}
1986/11/24 Engine Mounts Available To Provide Clearance For Deep Oil Pans{1152,1302}
1986/11/24 Updates To The Parts Book Microfiche{0374}
1986/11/24 Smaller Diameter Fuel Supply Line May Cause Power Loss{1274,1250}
1986/12/22 Two New Shop Towels And Towel Bracket Available In North America{0600}
1986/12/22 Engine Power Increased{1250}
1986/12/22 Use Heli-Coils To Repair 5.4" Bore Engine Rocker Arm Assemblies{1123,1105}
1986/12/22 Fuel Dilution Troubleshooting Procedure{1250}
1986/12/22 New Oil Level Gauges (Dipsticks) With "Full Range" Used{1326}
1986/12/22 New Torque Control Group Used In Governor And Fuel Injection Pump Group{1264}
1977/01/17 Removal Of Bolts With Metal Locks Easier With New Sockets{0610}
1977/01/17 Improved Main And Connecting Rod Bearings Have Aluminum Alloy With More Strength{1230}
1977/01/17 Blades For Hose Saw Cut Off Group Must Now Be Sent To New Address To Be "Resharpened"{0664}
1977/01/17 New Special Instruction For Troubleshooting 5P2150 Engine Horsepower Meter{0651,1250}
1977/01/17 SIRS Component Code List{0331}
1977/01/17 New Tie Bars Improve Stability Of The Fuel Injection Test Bench{0652}