1999/11/15 Caterpillar


Implement Valve Kit Incorporates Improved Flow Limiters And Compensators {5051}

Usage:


Challenger 35 (8DN, 8RD, ADK),
Challenger 45 (1DR, ABF, 3BK),
Challenger 55 (7DM, 6NN, AEN) Agricultural Tractors

Reference: Service Magazine, SEPD0480; July 12, 1999; Page 13; "New Flow Controls/Compensators Available".

Description of Change: The "parallel" flow implement valve kit has been improved. This kit is available for field retrofit of machines originally equipped with a "priority" flow system. The "parallel" flow valve kit now incorporates improved flow limiters and compensator spools. See the reference above for more information on these improvements.

The new valve kit replaces the former valve kit, and includes either three or four valve sections, as well as the necessary O-ring seals and shims. See the following table for the former and new kit part numbers.

Caterpillar Information System:

1999/11/08 Download Flash Files By Using The Caterpillar Service Information System (SIS) Or SIS Web {1901,1920}
1999/11/08 New Feed Roller Wheel Group And Nuts Used {6328}
1999/11/08 Individual Components Of The Rolling Hoses Are Available As Separate Service Parts {5057}
1999/11/08 Low Idle Settings For New, Emission Engines {1264,1000}
1999/11/08 New Remote Bogie Axle Fill Tube Used {4192}
1999/11/08 New Solenoid Valve (Cold Start) Used {5050,5479}
1999/11/08 New Water Pumps Are Now Being Used On Certain Asphalt And Pneumatic Compactors {5614}
1999/11/08 A Special Instruction For Installing A Water Spray Kit On A Pickup Broom Is Now Available {5612}
1999/11/08 A Special Instruction For Installing A Water Spray Kit On A Cold Planer Is Now Available {5612}
1999/11/08 A Special Instruction For Installing A Water Spray Kit On An Angle Broom Is Now Available {5612}
1999/11/08 Jacket Water Heater Available For Field Installation {1383}
1999/11/08 New Light Emitting Diodes (LED's) Are Now Available For Retrofit In Off-Highway Truck Indicator Panels {7450}
1999/11/15 Temperature Sensor Changes Improve Reliability {1906,3290}
1999/11/15 Engine Oil Scavenge Pumps Use New Hardened Shaft Assemblies {1312}
1999/11/15 Improved Air Breather Available For Certain Off-Highway Trucks {3260,4257}
1999/11/15 Procedure To Relocate The Sensor For The Steering Pressure On The 793C Off-Highway Truck {7601}
1999/11/15 Alternate Torque Values For The Wheel Rim Mounting Bolts For The Small Off-Highway Trucks {4201}
1999/11/15 New Engine Breather Tube For Harvesters And Forwarders {1317}
1999/11/15 New Cable Anchor Assembly Improves Cable Retention {5401}
1999/11/15 Correction To Schematic, Electrical System, 950G And 962G Wheel Loaders, IT62G Integrated Toolcarriers, SENR1393-01 {0374,7566}
1999/11/15 New High Strength Piston Bolts For Threaded Gland Cylinders {5101,5102,5104,5106}
1999/11/22 New Resolver Valve Has Backup Ring To Prevent Seal Extrusion {5051}
1999/11/22 Features Changed In Challenger Technician (CT) 2.3 {5990,7620}
1999/11/22 New Lamps For Instrument Panel Have Improved Service Life {1429,7451}
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