1979/04/16 Caterpillar


Clean The Orifice In The Pressure Control Group During A Transmission Overhaul{3167}

Usage:


D3, D10, 824C Tractors;
910, 931, 980C, 983B, 988B, 992C Loaders;
825C, 826C Compactors

Clean the orifice in the pressure control group during a transmission overhaul on the above models. Foreign material in the screen or the orifice can cause low pressure. If a new orifice is needed, the part number of the orifice and its application is shown in the chart. Be sure to use the correct orifice. Do not use one of the orifices shown in the chart in place of a pipe plug-type orifice.


Location of orifice.

Caterpillar Information System:

1979/04/16 Testing And Adjusting Procedure For 5P4210 Modular Cab Tilting Cylinder And Valve{0620}
1979/04/09 New Fan Motors Used In Cab Pressurizers{7311}
1979/04/09 Separate Scraper Batteries And Electronic Transmission Controls Now Used{1400,3168}
1979/04/09 New Exhaust Valve Has Improved Three-Piece Construction{1105}
1979/04/09 Improved Engine Design Uses Cylinder Block With Spacer Plate{1000}
1979/04/09 New Brake Actuators And Improved Air System Give Better Brake Operation{4250}
1979/04/09 Serial Numbers Used Instead Of Test Numbers On Power Shift Transmissions{3150,7557}
1979/04/09 Stronger Components Used In Cushion Hitch Group{7107}
1979/04/09 New Shaft Assembly And Bearing Housing For Right End Of Elevator Upper Shaft Prevent Bearing Damage During Assembly{6234,6210}
1979/04/09 Ground Wire Added To Coolant Flow Switch{7450,1408}
1979/04/09 6V112 Repair Kit Available For Parts Service Of The 8H8558 Nut Spinner{0611}
1979/04/02 Stronger Output Shaft Now Used In 2N3909 Tachometer Drive Adapter{7462}
1979/04/16 Hydraulic Accumulator Now Used In Lines Group For Draft Frame{5077,5057,5314,5055}
1979/04/16 How To Extend The Service Life Of 1P5550 Fuel Cam Locking Tool Assembly{0654,1250}
1979/04/16 Longer Self-Locking Bolts Now Used To Hold The Parking Brake Group To The Bearing Retainer{3161,3275,4267}
1979/04/16 90° Elbows On Quick Disconnect Couplers Make Installation Easier{0690}
1979/04/16 New Flywheel Clutch Uses Three Driven Discs Instead Of Two; Must Be Used Only With New Flywheel{3052,3054,1156}
1979/04/16 Different Type Brake Lining In Steering Brake Group; Higher Oil Level Used With New Lining{4110,3004}
1979/04/23 Two Bolts Have Been Added At The Junction Of The Converter And Retarder Housing To Prevent O-Ring Seal Damage{3109}
1979/04/23 New Retainer Used Between Bolt And Gear In The Torque Converter{3101}
1979/04/23 Dampeners Added To Steering Brake Group To Prevent Noise From Vibration Of Brake Band Assembly{4110}
1979/04/23 Careful, Correct Installation And Maintenance Of Fuel Injection Lines Is Very Important To Prevent Possible Engine Damage, Fire And Other Problems{1252}
1979/04/23 New Oil Cooler Bonnets Used On 3408 And 3412 Engines{1378,1354,1380}
1979/04/23 New Retaining Rings Used In Planetary Groups For Power Shift Transmissions{3176,3150}
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