1996/12/23 Caterpillar

Rear Axle Oil Level Raised To Improve Axle Lubrication{3013}

Usage:

515 (4LR),
525 (1DN) Wheel Skidders

Description of Change: The oil level in the rear axle has been raised. Axles are now being filled to the top of the axle shaft housing to improve axle lubrication.

Adaptable To: The 126-1449 Gauge Assembly (Dip Stick) has been changed to reflect the increased oil fill level. This change is effective with 515 (4LR279), and 525 (1DN926) Wheel Skidders. This change is also adaptable to first production for the machines listed.

To adapt this change to existing machines, discard the existing 126-1449 Gauge Assembly (Dip Stick) and install a new 126-1449 Gauge Assembly (Dip Stick). Be sure to fill the axle housing to the correct level.

NOTE: On 515 and 525 Wheel Skidders equipped with mechanical winches, the winch shares lubrication oil with the axle. During machine operation, the winch will accumulate oil. To ensure an accurate reading of the axle oil level, allow 15 minutes for the oil to drain back to the axle housing before checking the axle oil level.

Caterpillar Information System:

1996/12/23 Service Procedures For Special Application Rollers And Idlers Summarized For Track-Type Troctors{4159,4180}

1996/12/23 Longer Bosses Increase Blade Assembly Service Life{5057,6060,6051,6071,7167}

1996/12/16 Improved Fuel Sender Assembly Available {7481}

1996/12/16 Cab Air Conditioner Group Improvements Eliminate Debris {7320}

1996/12/16 Longer Tie Rods For Control Valve Groups {5051,5124}

1996/12/16 Cab Improvements Reduce Vibration {7266}

1996/12/16 Spring Force Adjustment Allows Hydraulic Levers To Remain In Detent Position {5051}

1996/12/16 Sprocket Segments Can Be Reworked To Allow Proper Torque {4155}

1996/12/16 Speed And Direction Lever Improvements Prevent Seizing {1901}

1996/12/16 Improved Design Of Decking Blade And Trunnion Caps Provide Increased Service Life {6060,6069}

1996/12/16 Improved Relay Switch Assembly Used To Provide Increased Reliability {1423}

1996/12/16 Front Track Roller Improvement Strengthens Weld Joint {4151}

1996/12/23 Grapple Rotator Motor Joint Strengthened{5082,6307}

1996/12/23 Cab Heater Efficiency Improved{7304}

1996/12/23 Externally Adjusted Relief Valve Used In Steering Control Valve Group{4307,4322}

1996/12/23 Larger Washer Used With Tube Clamps On Hydrostatic Transmission Prevents Clamp From Loosening{3218}

1996/12/23 New Temperature Sensors Used Which Prevent False Over Temperature Warnings{1906,1400}

1996/12/23 Ride Control Accumulator Recharging Procedure Changed{5081,5077}

1996/12/23 New Sight Gauge Replaces Former Dip Stick For Improved Visibility Of The Front Implement Hydraulic Tank Oil Level{7479}

1996/12/23 New Rotocoil Assembly Used In Engine Cylinder Head Groups{1109}

1996/12/30 Wiring Harness Routing Changed To Increase Wire Harness Service Life {1408}

1996/12/30 Improved Clapper Spring Available For Pilot Valve Groups {5059,5125,5126}

1996/12/30 Supplement To Service Manual Module; "Differential Lock-Relief Valve Pressure Check" {3264}

1996/12/30 Service Brake Adjustment Procedure Improves Application Pressure And Performance {4251,4269}