New Diaphragm Used In Fuel Ratio Control
Usage:
D348, D349, D353, 3406, 3408 And 3412 Engines In All Applications
Description of Change: A new diaphragm is used in the fuel ratio control groups on the above engines. This new diaphragm is made of a gray silicone material that is stronger and will give better performance.
The former diaphragm was made of a synthetic rubber material. The service life of the former diaphragm was not acceptable.
Adaptable To: The new 1W4797 Diaphragm is a direct replacement for the former 2P8804 Diaphragm. The former diaphragm has been canceled.
Caterpillar Information System:
1982/02/24 Use The Correct Governor For Parallel Applications
1982/02/24 Use 6V6035 Hardness Tester On Crankshafts
1982/02/24 New Idler Shaft Used In Fuel Transfer Pumps
1982/02/24 New Inlet And Exhaust Valves And Exhaust Inserts Available
1982/02/24 New Poppet Valve Will Decrease Chatter
1982/02/24 New Main Bearings And Connecting Rod Bearings Have Thicker Layer Of Surface Material
1982/02/24 Engine Storage; Engine Start-Up After Storage
1982/02/24 New Fuel Nozzle Adapter Assembly Used
1982/02/24 New Camshaft Has Improved Profile (Shape) Of Exhaust Cams
1982/02/24 New Engine Testing And Adjusting Tools Give More Accuracy And Longer Service Life
1982/02/24 List Of Service Publications
1982/02/24 "SIRS User Instructions" Available
1982/03/17 New Adapters And O-Ring Seals Used In Aftercooler Group
1982/03/17 Correct Lubrication Procedure Will Prevent Damage To Fan Drive
1982/03/17 New Gasket Used In Governor And Fuel Injection Pump Group
1982/03/17 Improved Bearing Used In Rear Power Takeoff Groups
1982/03/17 Heavy Duty Air Cleaner Available, With Precleaner And Automatic Dust Ejector
1982/03/17 New Double-Wall Fuel Injection Lines Group And Fuel Drain Group Available As Attachments For Protection Against Fuel Leakage
1982/03/17 Brass Plug Used To Prevent Corrosion
1982/04/07 Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary
1982/04/07 Location Of Sending Unit Changed To Improve Accuracy Of Water Temperature Indication
1982/04/07 Engine Replacement
1982/04/07 Use The 6V6059 Microlite With The 6V2196 Inspection Microscope
1982/04/07 Caterpillar Electric Starting Motors