System Component Specification
Habasit - Running Belt: tension gauge dial read-
ing (percent %)
3.70 - 3.80 (0.70% - 0.80%)
(2)
(1) New belt tension applies to new belt first time installations. Used belt tension applies
to reinstalling an existing belt or re-tensioning an existing used belt.
(2) Referenced to belt gauge set to 3.0 (0.0%)with no belt tension.
Bolt Grade Identification
Bolt grade markings are used to categorize bolts according to the bolt material, man-
ufacturing process, and mechanical properties. The grade of the bolt is stamped on the
head of the bolt.
US SAE bolts: The bolt grade markings are determined by the number of the lines stamped
on the head of the bolt. The number of lines is always two less than the grade of the bolt.
Count the lines, add two, and you can determine the grade of the bolt.
Metric bolts: On metric bolts, the bolt grade is identified by a bolt grade number stamped
on the head of the bolt.
CAUTION: Always replace bolts with the same grade bolt. If you don’t know the
grade of the replacement bolt – DO NOT USE THE BOLT.
Bolt Grade Markings Chart
Example bolt grades used on Precor equipment (may not represent all bolt grades). Always
match the replacement bolt grade marking to the removed bolt grade marking.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
Page 12
2 General Information
Bolt Grade Identification
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