1999/02/01 Caterpillar


Low Pressure Return/Case Drain Couplers Available{5050}

Usage:


Challenger 35 (8DN),
Challenger 45 (1DR),
Challenger 55 (7DM) Agricultural Tractors

Improved couplers are now available for use with low pressure return and case drain implement connections on Challenger 35 (8DN), Challenger 45 (1DR), and Challenger 55 (7DM) Agricultural Tractors. The new fittings cover a wider range of sizes, offers lower pressure drop, and includes the "breakaway" feature. The "breakaway" feature allows the coupler to automatically disconnect in case of implement disengagement.

See the following illustration and parts list for a complete list of fittings available for the low pressure return port. Depending on the application, features required, existing hose sizes, and availability of fittings at the dealership, use the illustration and parts list to select the most appropriate combination of couplers and adapters.


Available Components for Low Pressure Return

Caterpillar Information System:

1999/02/01 Correction To Disassembly And Assembly Manual, SENR8308-01{4150}
1999/01/25 Summary Of Improvements To Versatile Flotation Systems {6331}
1999/01/25 Installation Replacement For Screed Extender Support Bushings {6641}
1999/01/25 Governor Control Motor {1265}
1999/01/25 Revised Torque Settings For Boom Chain Adjusters {6460}
1999/01/25 Service Manual SENR1374 Now Covers IT62G Integrated Toolcarrier {0374,0375,7568}
1999/01/25 Correction To Power Train Disassembly And Assembly Manual SENR1381-01 {0600,0722,3254,3258,3260}
1999/01/25 Hard Steering {4307,4312}
1999/01/25 Fuel Level Senders Improved To Prevent Open Circuit Conditions {1273,1408,7481}
1999/01/25 Wheel Station Modifications May Decrease Oil Temperatures On Certain Off-Highway Trucks {4208,4051,4070}
1999/01/25 Prevention Of Cracking Of 125-6961 A-Frame Support Assembly {7050}
1999/01/25 Truck Body Guides No Longer Installed On Large Off-Highway Trucks {7258}
1999/02/01 Finding Top Center Position For Number 1 Piston{1156}
1999/02/01 New Flash Files Require Pressure Sensor Relocation{7414,1902}
1999/02/01 Off-Highway Truck Duo-Cone Seal Service Tools And Installation Video Now Available{7561}
1999/02/01 New Welding Procedure For Fuel And Hydraulic Tank Mounts For Certain Off-Highway Trucks{7050}
1999/02/01 Bearing Specifications For 3408E And 3412E Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) Hydraulic Drive Group{1714}
1999/02/01 New Service Information Available For Forest Products{0374,0375}
1999/02/01 Procedure For Propel Pump Neutral Adjustment For Rubber Tire And Steel Track Asphalt Pavers{3108}
1999/02/01 Procedure For Propel Pump Neutral Adjustment For AP-1055B/BG-2455C{3108}
1999/02/01 New Asphalt Deflector Kit{6630,6631}
1999/02/01 New Pulse Width Modulated Brake Sensor Now Available{4800}
1999/02/01 Procedure For Assembly And Installation Of Conventional Duo-Cone Seals Is Now Available{7561}
1999/02/08 New Brake Air Pressure Switch Has Increased Service Life {1432}
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