1995/08/21 Caterpillar

Improved Level Switch Available{7422}

Usage:

5130 (5ZL),
5230 (7LL) Excavators;
785B (6HK),
789B (7EK),
793B (1HL) Trucks with VIMS;
950F (2LM, 7ZF, 6YG, 4DJ, 5SK, 8TK),
960F (1YM, 9ZJ, 4CL, 6XL),
966F (4YG, 8BG, 3XJ, 9YJ, 1SL),
970F (7SK, 9JK),
980F (8CJ, 5XJ, 3HK, 4RN, 8JN) Wheel Loaders

Reference: Special Instruction, Servicing DT Connectors, SEHS9615.

Reference: Service Magazine, August 15, 1994; Page 15; "Switches With Screw Terminal And Sure Seal Connector Replaced By Switches With A DT Connector".

Description of Change: A new level switch is now available. The new switch has internal improvements which provide increased reliability.

Adaptable To: The referenced Service Magazine article previously recommended replacement of the former 3E-9342 Level Switch Assembly with the 3E-7505 Level Switch Assembly. The new 123-2993 Level Switch Assembly directly replaces the former 3E-7505 Level Switch Assembly which will no longer be available. The new 123-2993 Level Switch Assembly also directly replaces the former 3E-9342 Level Switch Assembly except that a Deutsch® plug (DT) must be installed on the machine wiring harness. See the chart for parts needed to install the DT plug. See the listed reference material for additional installation instructions.

Caterpillar Information System:

1995/08/21 Driveshaft Dust Cups Now Serviceable{3253}

1995/08/21 Low Friction Wear Ring Is Available For The Front Suspension Cylinders To Help Reduce Vibration{7201}

1995/08/14 Remanufactured 3500 Engine Core Return Requirements{1000}

1995/08/14 Piston Usage Chart For Two Piece Pistons{1214}

1995/08/14 New Piston Crown Assembly Used In Piston And Rod Group{1214}

1995/08/14 Wear Sleeve Removal Tooling May "Mark" The Crankshaft{1202,1161}

1995/08/14 New Exhaust Manifold Group Helps Prevent Exhaust Manifold Cracking{1059}

1995/08/14 New Indicator For Hydraulic Charge Filter Prevents Leakage{5068}

1995/08/14 Parts Service Information For Articulated Trucks Equipped With Wide Gears In The Final Drive And A Spacer Between The Wheel Assembly And Planetary Carrier{4055,4051}

1995/08/14 New Components In Water Lines Groups And Aftercooler Group Allow Field Installation Of Variable Speed Fan Clutch Vital Information Management System (VIMS){1380,1063,1359}

1995/08/14 Hood Grill Improved With Enlarged Inserts{7251}

1995/08/14 New Axle Sustains Higher Dynamic Loads{3282}

1995/08/21 Recommendations For Inspection And Replacement Of Rubber and Viscous Crankshaft Dampers{1205}

1995/08/21 New Service Repair Camshaft Idler Gear Shaft Available For Use With Cylinder Blocks With Damaged Pilot Bore{1206,1212,1237}

1995/08/28 New Cylinder Head Group Includes Stronger Cylinder Head{1100,1101}

1995/08/28 New Steering Accumulator Charging Valve Group Is Being Used To Improve Service Life{4307}

1995/08/28 Special Instruction SEHS9879 Available For Installing An Air Cooling Coil For The Air Dryer On Articulated Trucks {4285}

1995/08/28 Adding Vibratory Lock Out Function In Vibratory System{1435,3220,5653}

1995/08/28 Modifying Former Exhaust Manifold Sections To Help Prevent Loosening Or Breakage Of The Exhaust Manifold Retaining Bolts{1059}

1995/08/28 New Thicker Exhaust Manifold Gasket Used{1059}

1995/08/28 New And Reconditioned Valve Projection Specifications{1105}

1995/09/04 New High Pressured Turbocharger Groups Reduce Exhaust Leaks{1052,1053}

1995/09/04 New Flexible Hose Assemblies Used In Turbocharger Oil Lines Group{1052,1307}

1995/09/04 Exhaust Manifold Crossovers Changed To Improve Serviceability And Maintain Balanced Engine Exhaust{1059}