1984/11/07 Caterpillar


New Diaphragm Used In BrakeSaver Control Valve Group

Usage:


3406, 3406B And 3408 Truck Engines

Description of Change: A new diaphragm is used in the BrakeSaver control valve groups on 3406B and 3408 Truck Engines. The new diaphragms will have a longer service life than the former diaphragms.

Adaptable As: The new 4W7137 Diaphragm is a direct replacement for the former 9G41 Diaphragm, when used in the 9N5530 BrakeSaver Control Valve Group. Use of the new diaphragms is in effect on 3406B Truck Engines (7FB7273) and on 3408 Truck Engines (28V4641). The new diaphragm is adaptable to 3406 Truck Engines (92U) and 3408 Truck Engines (28V).

Caterpillar Information System:

1984/11/07 New High Alloy Material Is Used In Cylinder Head Assemblies
1984/11/07 Cetane Injection Group Uses New Orifice, Tee and Seals
1984/11/07 New Water Temperature Regulator Has Higher Temperature Setting
1984/11/07 Temperature Adapter Group Can Be Used With A Caterpillar Multimeter
1984/11/07 New Oil Filter Group Can Be Used To Extend Oil Change Interval
1984/11/07 New Cylinder Heads, Fuel Nozzles And Fuel Nozzle Adapters Used
1984/11/07 Remove Diode Assemblies From Shutoff Solenoids
1984/11/07 Foil Shield Will Help Prevent Electrical Interference In Engine Set Point Indicator
1984/09/26 New Cylinder Block Groups Used
1984/09/26 Higher Compression Pistons Can Help Reduce White Exhaust Smoke During Cold Weather Starts
1984/09/26 New Service Tools Available
1984/09/26 Tune-up Kit And Remanufactured Nozzles Available
1984/12/17 Identification Of Camshaft Groups And Valve Mechanism Groups
1984/12/17 Remanufactured Cylinder Head Groups
1984/12/17 Causes And Correction Of Opposite Crankshaft Rotation In Direct Injection Engines
1984/12/17 Starters That Remain Engaged After Engine Is Running
1984/12/17 Thread Identification Kit Available
1984/12/17 New Pressure Gauges Have Dual Scales [kPa (psi)]
1984/12/17 Bonnet Of Fuel Injection Pump Group Now Serviced Separately
1984/12/17 Important Differences In Engine Arrangements On 3208 Engines Equipped With Turbochargers
1984/12/17 Remanufactured Turbocharger Groups
1985/01/01 Minimize Fuel Problems In Cold Weather Operation
1985/01/01 Governor Flyweight Shield No Longer Used In New Scroll Fuel Systems
1985/01/01 New Truck Battery Is Available
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