Brands: Ford New Holland / New Holland Agriculture
Equipment Type: Grain Head Wobble Box (Attachment Component)
Manuals Type: Service Manual
Machine Model & Serial Number: 960, 970, 971, 972, 973
Region: N/R
Book Code: 40482002
Issued: Printed in U.S.A. (Issue 3-87)
Language: English
Pages: 24
File Format: Portable Document Format (PDF)
Remark: Complete factory service manual dedicated exclusively to the Grain Head Wobble Box. Provides highly detailed procedures for eccentric shaft shimming, yoke disassembly, and tapered bearing preloading. Covers Style 1 (Model 960), Style 2 (4-bolt base for Models 970-973), and Style 3 (5-bolt base metric hardware for Models 971/973) configurations.
Table of contents
- INTRODUCTION
- REMOVAL
- Style 1 - Model 960
- Style 2 - Models 970, 971, 972, and 973 (4 Bolt Base)
- Style 3 - Models 971 and 973 (5 Bolt Base)
- DISASSEMBLY
- Styles 1 and 2 - Models 960, 970, 971, 972 and 973
- Yoke Disassembly (Styles 1 and 2)
- Style 3 - Models 971 and 973
- Yoke Disassembly (Style 3)
- ASSEMBLY
- Styles 1 and 2 - Models 960, 970, 971 and 973
- Yoke Assembly (Styles 1 and 2)
- Calculation of Shim Pack Thickness (Styles 1 and 2)
- Style 3 - Models 971 and 973
- Wobble Box Assembly (Style 3)
- Shimming the Eccentric Shaft and Calculation of Shim Pack Thickness (Style 3)
- INSTALLATION
- Style 1 - Model 960 (Wobble Box Reinstallation and Misalignment Chart)
- Style 2 - Models 970, 971, 972 and 973
- Style 3 - Models 971 and 973
Introduction
The wobble box is designed to convert rotating motion received from the drive belt into reciprocating motion to drive the grain head knife. Because of the forces involved, the wobble box must be correctly serviced and assembled if it is to perform trouble free. Whenever the wobble box has been disassembled, and especially if any components of the eccentric group and yoke assembly have been replaced, center the wobble shaft and properly preload the tapered bearings.
