1999/11/22 Caterpillar


New Lamps For Instrument Panel Have Improved Service Life {1429,7451}

Usage:


120H (6TM, 5FM, 9FN, 4MK, 2AN, 6NM, 9YR),
135H (7MM, 8WN, 3YK, 7PM),
12H (5ZM, 4ER, 4XM, 8MN, 2WR, 2LR, 2GS),
140H (8JM, 5HM, 2ZK, 9TN, 9ZN, 8KM, 3AS),
143H (1AL),
160H (9JM, 2FM, 9EJ, 3GM, 2HS),
163H (5AK),
14H (7WJ),
16H (6ZJ) Motor Graders

Description of Change: The new lamps have an improved service life. Some lamps are too high of candle power, resulting in heat build up in the instrument panel. The heat build up is causing some lamp sockets to melt and fall from the appropriate socket. Usually this occurs with the lamps that are "ON" for extended periods of time such as the differential lock lamp and the high beam lamp.

Adaptable To: The new 7N-5876 Lamp directly replaces the former 9W-2111 Lamp in the master action position. The new 8D-1429 Lamps directly replace the former remaining 9W-2111 Lamps. The new lamps are adaptable to earlier machines listed above.


Illustration.
Typical View of Instrument Panel.

Caterpillar Information System:

1999/11/22 Features Changed In Challenger Technician (CT) 2.3 {5990,7620}
1999/11/22 New Resolver Valve Has Backup Ring To Prevent Seal Extrusion {5051}
1999/11/15 New High Strength Piston Bolts For Threaded Gland Cylinders {5101,5102,5104,5106}
1999/11/15 Correction To Schematic, Electrical System, 950G And 962G Wheel Loaders, IT62G Integrated Toolcarriers, SENR1393-01 {0374,7566}
1999/11/15 New Cable Anchor Assembly Improves Cable Retention {5401}
1999/11/15 New Engine Breather Tube For Harvesters And Forwarders {1317}
1999/11/15 Alternate Torque Values For The Wheel Rim Mounting Bolts For The Small Off-Highway Trucks {4201}
1999/11/15 Procedure To Relocate The Sensor For The Steering Pressure On The 793C Off-Highway Truck {7601}
1999/11/15 Improved Air Breather Available For Certain Off-Highway Trucks {3260,4257}
1999/11/15 Engine Oil Scavenge Pumps Use New Hardened Shaft Assemblies {1312}
1999/11/15 Temperature Sensor Changes Improve Reliability {1906,3290}
1999/11/15 Implement Valve Kit Incorporates Improved Flow Limiters And Compensators {5051}
1999/11/22 New Spacer For Hydraulic Filter And Rod Assembly In Hydraulic Tank And Filter Now Available {5056}
1999/11/22 Maintaining Motor Grader Circle Improves The Pinion Service Life {5207,6153,6154,6155}
1999/11/22 Constant Torque Hose Clamp Now Available {7550,7553}
1999/11/22 New Cage And Adapter Assemblies Available For Power Take Off (PTO) Drives {1207}
1999/11/22 New Auxiliary Drive Adapter Assembly And Shaft Assembly Available {1207}
1999/11/22 Special Instruction, REHS0521, Available For Converting Off-Highway Trucks From A Tu-Flo 750 Air Compressor To A Tu-Flo 1000 Air Compressor {1803}
1999/11/22 Special Instruction Available For Correct Installation Of 170-1601 Signal & Pressure Reducing Valve {4337}
1999/11/22 Correct Installation Of Steps {7254}
1999/11/22 Procedure To Tighten Bolts And To Shim The Rear Drive Axle Is Available {3278}
1999/11/22 Cylinder Head Bolt Re-torque Not Necessary For 3003, 3013, 3014, And 3024 Engines (All Applications) {1100}
1999/11/22 Transmission Oil Pump Has Internal Air Bleed Orifice {3066}
1999/11/22 Improved Brake Piston Eases Installation {4250}
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