Loader Service Manual: Detailed Insights and Guidelines

Product Overview

This comprehensive service manual is designed for operators and technicians of New Holland W Series loaders (W50c, W60c, W70c, W80c). It provides detailed guidelines on maintaining and optimizing your machinery. Dive into our thorough breakdown of each component and system, ensuring your loader operates at peak efficiency.

Table of Contents

• Content
• Introduction
• Engine
• Four Wheel Drive System
• Front Axle
• Rear Axle
• Hydrostatic Drive
• Brakes and Controls
• Hydraulic System
• Frames and Ballasting
• Steering
• Cab Climate Control
• Electrical System
• Front Loader and Bucket
• Platform, Cab, Bodywork, and Decals
• Special Tool Index

Manual Extract: Steering Pressure Limit Setting (Tier 2)

Ensure optimal steering performance by setting the pressure limits correctly:

• With the engine running at high RPM, the pressure at port P of the tool distributor must be between 239 and 243 bar.
• Verify the pressure value in paragraph A is as indicated (22-25 bar).
• With the engine off and the bucket grounded, connect a quick-coupling pressure gauge to point P.
• Lock the articulation, start the engine, and activate JSS. Steer the joystick to full lock in both directions. The pressure reading should match 239 to 243 bar.
• If discrepancies occur, ensure all hydraulic connections are properly secured.

Steering Speed Adjustments

Note that steering speed varies with vehicle speed, reducing sensitivity by 80% at 20 km/h. The Joystick Steering System (JSS) allows for adjustable steering speeds at three levels:

• Speed Level 1: 4.5 to 5.5 seconds
• Speed Level 2: 3.2 to 4.5 seconds
• Speed Level 3: 2.8 to 3.2 seconds

(Time taken to steer from full right to full left)

Equipment Tier Identification

Determine the tier level of your equipment for compliance and performance standards. Read our article on Tier Level for more information.

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