Case 570ST Backhoe Loader Service Manual

Description

Table of Contents

• Content
• Introduction
• Engine
• Transmission
• Four Wheel Drive System
• Front Axle
• Rear Axle
• Brakes and Controls
• Hydraulic System
• Frames and ballasting
• Steering
• Wheels
• Electrical System
• Front Loader and Bucket
• Hydraulic System
• Frames and Ballasting
• Steering
• Wheels
• Front Loader and Bucket
• Boomers, dippers and buckets
• Platform, Cab, Bodywork and Decals
• Special Tool Index

Manual Extract: Transmission control valve – Inspect – Transmission control valve

1. Use cleaning solvent to clean all metal parts.
2. Check the springs for wear, cracks, heat distortion, and other damage. Replace as necessary.
3. Inspect the spool and the pistons for damage or wear.
Make sure that the orifice in the outer modulation piston is open. Use new parts as necessary.
4. Inspect the control valve body for cracks, corrosion, and wear. Inspect the bores for wear. Find the bore from which the ball was removed. There is a very small orifice in one side of this bore. Make sure that this orifice is open. If the control valve body is bad, you must use a new transmission control valve.
5. Find the plate that held the ball in position. Put the ball on the hole in the plate so that the ball is in contact with the edge that has the radius. Hold the plate and the ball up to a bright light and look at the bottom side of the plate and the ball. There must be no light visible between the