1998/03/30 Caterpillar

New Seat Suspension Increases Operator Comfort And Service Life {7312,7321,7318,7324}

Usage:

D250E (5TN),
D300E (7FN),
D350E (9LR),
D400E (2YR) Articulated Trucks;
24H (7KK) Motor Graders;
953C (2ZN),
963B (9BL),
973 (86G) Track-Type Loaders;
D5M (3CR, 4BR, 3DR, 6GN),
D6H (1FJ),
D6M (2RN, 9ZM, 3WN, 4JN),
D6R (2YN, 2HM, 3ZN, 4FM, 4MN, 4JR, 5LN, 9BM, 6JN, 8XN, 7KN, 9MN, 8LN, 4HN, 9PN, 8TM),
D7R (2EN, 3DN, 2HR),
D8R (7XM),
D9R (8BL, 7TL),
D10R (3KR),
D11R (9TR, 9XR),
Track-Type Tractors;
988F (2ZR),
990 (4FR),
992G (7HR),
994 (9YF) Wheel Loaders

A new seat air suspension contains new stiffer scissors and improved tube fittings which eliminate air leakage. This improvement increases operator comfort and service life. The new 149-2404 Seat Suspension Group is a direct replacement for the former 117-7607 Seat Suspension Group. The following parts are available for parts service.

Illustration 1.
149-2404 Seat Suspension

Illustration 2.
149-2404 Seat Suspension

Caterpillar Information System:

1998/03/30 Improved Drive Shaft Group Increases Service Life {3250,3000,3253}

1998/03/30 Use FT2461 Pressing Bar, FT2462 Pressing Tube, FT2463 Ring, FT2464 Plate, FT2465 Plate, FT2466 Mounting Plate, And FT2467 Rotating Plate To Disassemble And Assemble Variable Speed Fan Clutch {1359}

1998/03/30 Final Drive Screen Assembly For Large Off-Highway Trucks Has Been Removed {4208,4051,4050}

1998/03/30 New Custom Product Support Literature Is Available For 793C Trucks Equipped With 3Z-6278 Towing Bumper {0374,7156}

1998/03/30 Use 1U-9003 Brake Piston Puller For Disassembly And Assembly Of Hydraulic Brake Caliper Group {4256}

1998/03/30 Use FT2546 Preload Tool To Adjust Pinion Bearing Preload {3254}

1998/03/30 New Seat Air Suspension Increases Operator Comfort And Service Life {7300,7312,7318,7321,7324}

1998/03/30 Procedure To Install Rear Axle On Certain Off-Highway Trucks Has Been Changed {3278,4208}

1998/03/30 Use 133-8877 Field Service Tool Group For Routine Maintenance And Adjustment Operations {7500}

1998/03/30 Correction To Proper Assembly Of Elbow And O-Ring Seal For The Piston Pump Group {5055}

1998/03/30 Paint Color Changes Summarized {7581,7559}

1998/03/23 Replacements Products Available For 4C-4079 Brake And Component Cleaner{0680}

1998/03/30 Use 125-5723 Socket Wrench Assembly For Removal And Installation Of Stake-Type Differential Pinion Shaft Nut {3254}

1998/03/30 New Seat Air Suspension Increases Operator Comfort And Service Life {7300,7312,7318,7321,7324}

1998/03/30 Proper Welding Procedures Are Necessary To Avoid Damage To Electronic Controls {0351}

1998/03/30 Retaining Compound Now Used On Tow Point Bushings {0649}

1998/03/30 Use 7X-1703 Adapter Group For Mounting 7X-1700 Communication Adapter On 8T-8697 ECAP {1900,0781}

1998/03/30 Use 9U-6803 Tester For Hydraulic Cylinders {7562}

1998/03/30 Use 137-2700 Bore Welding Group (110V), 138-8215 Bore Welding Group (110V With Auto-Skip), 138-8212 Bore Welding Group (220V) And 138-8213 Bore Welding Group (220V With Auto-Skip) For Building Up Worn Or Damaged Bores {0672}

1998/03/30 Use Measuring Tools For Crimp Diameter {0700}

1998/03/30 Stronger Injector Hold Down Bolt Used In Fuel Injection Pump Groups {1290}

1998/03/30 Use 1U-6189 Lamp Tool For Removal And Installation Of Small Control Panel Bulbs {1400,0709}

1998/03/30 Use 136-3642 Crimp Tool Group For 4C-9900 And 6V-4900 Presses {5057}

1998/04/06 Improved Alternator Groups Now Available {1405}