1997/03/03 Caterpillar


New Circuit Breaker Panel Base Improves Reliability {1417}

Usage:


307 (9ZL, 2PM, 2WM),
311 (9LJ, 5PK),
312 (6GK, 7DK, 6BL),
315 (3ZM, 4YM, 6XM),
315 L (6YM),
317 (4MM),
317 N (9SR),
320 (4ZJ, 7GJ, 8LK, 2DL, 3XM),
320 L (8HJ, 3XK, 9KK, 1KL, 4JM),
320 N (9WG, 1XM),
320 S (6KM),
322 (7WL),
322 L (8CL, 8ML, 9RL),
322 LN (4RM),
325 (7TG, 8JG, 9SG, 5WK, 8YK, 9ZK, 8NL, 6RM),
325 L (7CJ, 7LJ, 2JK, 6KK, 8NK, 2SL, 9KL, 7LM),
325 LN (2SK, 3LL),
330 (9NG, 9PJ, 9WJ, 6ZK, 8RL, 2ZM),
330 L (6WJ, 6SK, 8FK, 2EL, 9ML, 5YM),
330 LN (8CK),
350 (7RK, 8HK, 2ZL),
350 L (9DK, 3ML, 9FL),
375 (8XG, 8WJ, 6NK),
375 L (6RL, 9WL, 1JM),
5080 (6XK, 8SL) Excavators

Description of Change: The base in the circuit breaker panel is now produced from a new material. The new material has a higher melting point than the former material. The higher melting point delays damage to the base during a circuit overheating condition.

Adaptable To: The new material is identified by a supplier date code that is stamped on the component. The new material is effective with a 10/95 date code stamped on the 7Y-5491 Base. A base that has a date code stamp that is more recent than 10/95 was produced with the new material.

The new 136-4072 Base replaces the former 7Y-5491 Base. The new base is effective with the PIN's listed in the chart and is adaptable to first production of those models. It is also adaptable to the models listed above.

Caterpillar Information System:

1997/02/24 Information Needed For VIMS Support {7601}
1997/02/24 Resetting Event Recorder And Service Lamp For VIMS {7601}
1997/02/24 Lubrication Pump Group Container Assembly Now Available As A Serviceable Part {7540,7510}
1997/02/24 Tooling Available To Tighten Cab Mounting Bolts {7301,0602,0765}
1997/02/24 New Larger Steel Retainers Used In Return Line Manifold Increase Service Life {5057}
1997/02/24 Some Service Parts Available For Engine Fuel Injection Pump {1251}
1997/02/17 VIMS-PC Version 2.1 Now Available {7601}
1997/02/17 New Motor Rotating Group Used And New Swing Motor Group Used To Improve Handling {5058}
1997/02/10 Updates To Hydraulic Excavator Engine Due To Underspeed Electronics {1408,1920}
1997/02/10 New Hose Used In Hydraulic Front Lines For Combining Stick Flow Between Control Valves Provides Longer Service Life {5057}
1997/02/10 Hydraulic System Pressure Relief Valve Substitution {5069,5072}
1997/02/03 New Gasket With Integral Rubber Seal Used Between Air Compressor And Front Housing {1803}
1997/03/03 Improved Bushing O-Ring Seal Available For Injection Pump Groups {1251}
1997/03/03 New Harness Assembly For 3500 Electronic Unit Injector (EUI) Engines And 3500B Engines {1408}
1997/03/03 Installation Of Piston Pin Retainer {1215}
1997/03/10 Technical Information "Bargain List" {0374,0375}
1997/03/10 Correct Identification Of Flexible Coupling Group {3252}
1997/03/10 Identifiers Detect Contaminated Air Conditioning Refrigerant {1800,1802,7320}
1997/03/10 Proper Tensioning Of V-Belt Improves Air-Conditioning Compressor Service Life {1807,7320,1800}
1997/03/17 New Washers Used In Oil To Air Cooler Group To Improve Service Life{1374}
1997/03/17 New Bolts And Washers Used To Retain Track Tensioner Cylinder Rod Seal{4197,4157}
1997/03/17 The Addition Of Washers To The Boom Valve In The Main Hydraulic Control Improves Controllability{5051,5461}
1997/03/17 Bottom Dump Cylinder Has Stronger Cylinder Cap{5457}
1997/03/17 Swing Pump Braking Torque Response May Be Adjusted{5473,5467}
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.