Crankshaft Main Bearing and Thrust Washer: Removal and Inspection Guide

Product Overview

This guide provides a comprehensive overview of the process for removing and inspecting the crankshaft main bearing and thrust washer, critical components ensuring the smooth operation of engine assemblies. Essential for maintenance of CASE DX series machines, this manual section details meticulous steps to achieve optimal performance and longevity of your equipment.

Table of Contents

1. General
2. Engine
3. Clutch
4. Transmission
5. FWD Driveline
6. Front Axle
7. Rear Axle
8. Power Take Off
9. Brakes
10. Hydraulic Systems
11. Steering
12. Wheels
13. Cab Climate Control
14. Electrical System
15. Platform, Cab, Bodywork and Decals

Key Features

• Comprehensive step-by-step instructions for bearing and thrust washer maintenance.
• Specifications and measurements to ensure precision in repairs and adjustments.
• Applicable to a range of CASE DX models including DX48, DX55, and DX60.

Benefits

• Enhanced equipment performance through regular and precise maintenance.
• Prolonged machinery life by adhering to manufacturer specifications.
• Reduced risk of engine damage due to improper bearing wear or misalignment.

Usage Recommendations

• Ensure all necessary tools and the plastigauge are ready before starting the inspection.
• Carefully follow torque specifications when reinstalling components to avoid over-tightening.
• Regularly check thrust bearings for signs of wear, including poor contact or unusual wear patterns.

Manual Extract: Remedial Steps for Crankshaft Main Bearing and Thrust Washer

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Follow these steps to effectively remove and inspect the components:

1. Remove the two retaining bolts from the bearing holders.
2. Take out the bearing holders and bearing liners.
3. Position a piece of plastigauge across the bearing liners’ full width.
4. Reinstall the bearing holder and tighten the bolts to between 49.0 – 53.9 Nu22c5m (36.2 – 39.8 ft. lbs.). Note: Avoid any rotation of the bearing holder.
5. Remove the bearing holders and measure the width of the flattened plastigauge.
6. Replace components or grind the crankshaft to the next undersize bearing as needed to secure the correct clearance.
7. Inspect the thrust bearings for defects, measuring washer thickness with a micrometer. Replace washers if thickness is beyond allowable limits.

Standard Thickness: 2.95 mm-3.0 mm (0.116i-0.118i)

Allowable Limit: 2.8 mm (0.11i)