Massey ferguson mf 8240 xtra tractor service repair manual

Page 36

8200 SERIES TRACTORS

Introduction

1A01.33

H . Tightening torques Use the recommended tightening torques for nuts and bolts in accordance with tables: - 1 and 2: for metric threads - 3 and 4: for non-metric threads Where a particular torque is required, it is mentioned in the text. Tables 1 and 3 indicate the normal values of the tightening torques applicable with zinc-plated threaded elements with normal nuts, coarse or fine threads, with or without flat or lock washers, and weld nuts having a height greater than 0.8 d. Tables 2 and 4 indicate the lower torque values applicable to threaded elements in assemblies using selflocking safety nuts, zinc-plated, phosphate coated nuts and bolts, flat nuts, and weld nuts having a height less than 0.8 d. These values apply to all dry assemblies. If the threads are lubricated, reduce the tightening torques in consequence.

Note: Read the strength classification on the head of the bolt and determine the corresponding torque to be applied.

Example:

8,8

Issue 2

May 2002


Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.