1997/12/08 Caterpillar


Serviceable Transmission Control Switches And New Improved Retention Bolts Are Available For The 123-7406 And 132-3110 Steering Wheel Groups{3171}

Usage:


515 (4LR),
525 (1DN) Wheel Skidders, 824G (4SN) Wheel Tractors, 825G (6RN) Soil Compactors, 826G (7LN) Landfill Compactors, 980G (2KR, 9CM, 2SR) Wheel Loaders

Description of Change: The transmission upshift and downshift switches and the transmission directional control switch are serviceable in the machines listed. The new switches have improved engagement when actuated and have a longer service life.

New bolts improve switch retention. The new bolts replace the former bolts in the steering wheel group.

Adaptable To: The new 145-9994 Transmission Switch Assembly replaces the former 112-9711 Switch Assembly (canceled) or 138-2862 Switch Assembly (canceled). This new switch assembly is effective with 525 (1DN1130-Up) and 515 (4LR536-Up) Wheel Skidders, 824G (4SN356-Up) Wheel Tractors, 825G (6RN320-Up) Soil Compactors, 826G (7LN292-Up) Landfill Compactors, and 980G (2KR1307-Up, 9CM808-Up, 2SR380-Up) Wheel Loaders. The new 145-9994 Switch Assembly and new bolts are adaptable to first production for the machines listed when used with 138-2863 Cover (7).


Illustration 1.
145-9994 Transmission Switch Assembly.

(1) 3E-3389 Receptacle Lock Wedge.
(2) 3E-3387 Receptacle Assembly.
(3) 145-8669 Switch Assembly (Down).
(4) 145-8668 Switch Assembly (Up).
(5) 107-3786 Bolt.
(6) 145-8673 Switch Assembly (F/R).


Illustration 2.

(7) 146-0209 Housing.
(8) 138-2863 Cover.


Illustration 3.
Wiring for 3E-3387 Receptacle Assembly

NOTE: Ensure that all black wires with ring terminals are attached to 095-0641 Bolt (Grounding Terminal) (5).


Illustration 4

(9) 153-8001 Bolt.
(10) 153-8004 Bolts.
(11) 153-9301 Bolt.
(12) 153-8003 Bolt.
(13) 153-8002 Bolt.
(14) 153-9300 Bolts.
(15) 107-3786 Bolts.
.

NOTE: Tighten bolts to 1.7 ± .2 N·m (15 ± 1.8 lb in).

Caterpillar Information System:

1997/12/08 New Torque Converters Have Improved Output Shaft Bearings{3101,3135,3130}
1997/12/08 New Hose Clamp For The Air Inlet Hose Has Improved Durability{1071}
1997/12/08 Improved Latch Pin For Telehandler All Weather Cab{7308}
1997/12/08 New Tow Hitch Available{7111,5133,7116,7555,7562}
1997/12/08 New Maintenance Of Wear Pads Improves Service Life{6460}
1997/12/08 An Improved Seal Package Now Available For Tailgate Cylinders{5107,7271}
1997/12/08 New Foot Actuator Switch For Differential Lock Improves Reliability{3270,1435,3258,3264}
1997/12/08 Wiggins Fast Fill Connectors For 793C Off-Highway Trucks{7513}
1997/12/08 New Brake Oil Temperature Sender Used In Some Non VIMS Off-Highway Trucks For Improved Accuracy{7489}
1997/12/08 New U-Cup Seal In Front And Rear Suspension Cylinder Groups Increases Service Life{7201}
1997/12/08 Steering Accumulator Charging Valve Rotated To Improve Serviceability{4304,4300,4307,4331,4332}
1997/12/08 New Custom Product Support Literature Is Available For 789B Trucks Equipped With 1Q-5845 Heated Brake Actuation Lines Group{0374,4257}
1997/12/08 New Metering Pump Group Improves Steering Control{4312}
1997/12/08 Updated Clipping Method Improves Durability Of Fan Motor Inlet Tube Assemblies{5057}
1997/12/08 Lubricant Available For Use On Door Latches{7308}
1997/12/15 Proper Tensioning Of Alternator V-Belt {1807,1800,1357}
1997/12/15 Improved Rear Suspension Cylinder Seal Package Now Available {7201,7213}
1997/12/15 Beaded Wiper Seals For Rear Suspension Cylinders Increase Service Life {7201,7213}
1997/12/15 Revised Testing & Adjusting Manual, SENR6719-01, 938G Wheel Loader And IT38G Integrated Toolcarrier Traction Control System, Now Available {0374}
1997/12/15 Caterpillar Extended Life Coolant (ELC) Is The Standard Factory Fill For The Engine Cooling System On Machines Built At The Sagami, Japan Factory {1395}
1997/12/22 Special Instruction, SEHS9967-01, Available For 24H Motor Grader Assembly Instruction {0374,7000,7960}
1997/12/22 Recommended Tire And Rim Usage {4201,4202,4203}
1997/12/22 Brake Purge Ports Added To Improve Brake Serviceability {4251}
1997/12/22 New Autoshift Transmission Available {3030,3168,7459}
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