1982/02/15 Caterpillar


Stronger Orifices Used In Control Valve{3167}

Usage:


D3, D3B, D9L, D10, 814B and 824C Tractors;
910, 931, 931B, 950B, 966D, 980C, 983B, 988B, and 992C Loaders;
815B, 816B, 825C, and 826C Compactors

SUPPLEMENT: 04/12/82

SERVICE MAGAZINE, FEBRUARY 15, 1982, PAGE 13. In the article, "Stronger Orifices Used In Control Valve" add the 814B Tractor to the list of models in the subtitle and to the "Models" in the top part of the chart. Also, in the chart under the heading "Models" put a mark through 955D and change 824B to 824C.

--------------- END SUPPLEMENT ---------------

Description of Change: New orifices are used in the selector and pressure control valve group on the above machines. The new orifices have a different body design with ribs on the inside for added strength. This new design gives more support to the screen.

Field reports show that the screens in some of the former orifices have at times collapsed (been pushed in).

Adaptable As: The new orifices are direct replacements for the former orifices, which have been canceled. Identification of the orifices can be made by their color. See the chart.


Location of orifice in valve group.

Caterpillar Information System:

1982/02/15 Stronger Spanner Wrenches Now Available{0612,0613}
1982/02/15 New Design Drain Tube For Transmission Solenoid Valve{3163,3167}
1982/02/15 Tools For Replacement Of 1M6762 Puller Ring To Remove Final Drive Outer Bearing Support{0621,4066}
1982/02/15 New Fuel Nozzle Adapter Assembly Used{1106}
1982/02/15 Improvements To Differential, Differential Carrier, And Differential Lock{3258,3264,3280}
1982/02/15 New 6V4810 Tool Group Used To Service Vehicles Equipped With VE (Vehicular Environmental) Series Electrical Connectors In Electrical Harness{0610,0620}
1982/02/08 Use Microfiche Libraries For Up-To-Date Information{0374}
1982/02/08 New 6V4818 Driver Available To Install Rack Bearings In Fuel Injection Pump Housings{0622}
1982/02/08 New Alternator And Fan Support Bracket{1356,1357,1405}
1982/02/08 The Service Publications Information Feedback System{0374}
1982/02/08 New Piston Pin Retainer Used{1214,1225}
1982/02/08 Use Correct Setting For Check And Relief Valve{0374,5214,5057}
1982/02/22 New Water Pump And Rebuild Kit Available{1361}
1982/02/22 Difference Between Static And Dynamic Rack Settings Changed{0374,1257}
1982/02/22 Torque/Pressure Conversion Table For 6V200 Hydraulic Wrench{0614,0623}
1982/02/22 New Piston And More Springs Used In Transmission{3155,3170}
1982/02/22 Improved Bearing Used In Rear Power Takeoff Groups{3055}
1982/02/22 Use A Magnetic Chuck To Hold Parts On Work Bench{0626}
1982/02/22 Engine Storage; Engine Start-Up After Storage{1000}
1982/02/22 Screen Added To Oil Lines At Inlet Of Brake And Torque Converter Oil Cooler{1366,1365,1375,1376,3103,3154,3179,4257,4304,5057,5068}
1982/02/22 Use 6V6035 Hardness Tester On Crankshafts{0651,1202}
1982/02/22 New Idler Shaft Used In Fuel Transfer Pumps{1256}
1982/03/01 Shorter Bolts Used In Four Locations To Fasten Piston Motor Head To Body{3201,4351,5058}
1982/03/01 New Gasket Used In Governor And Fuel Injection Pump Group{1259,1286}
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