Understanding Bolt Grades - Precor Experience 700 line Series Service Manual

System Component
Drive Belt Tension Used Belt
Drive Motor fasteners
ammeraal brand running belt tension (gauge/-
percent)
Forbo brand running belt tension (gauge/percent)
Deck front fasteners
Deck rear fasteners
Lift Motor Calibration gap
Notes: * Referenced to 3.0 (0.0%)

Understanding bolt grades

For US SAE bolts, the grade of the bolt is determined by the number of the lines 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.
In the case of a metric bolt, the head will have a numerical marking to indicate the grade
CAUTION: Always replace bolts with the same grade. If you don't know the grade of
the replacement bolt – DO NOT USE.
Specification
80-90 lbs (36-41 kgs)
204 in-lbs (17 ft-lbs, 23 N-m)
[[[Undefined variable Spe-
cifications.TRM14-Amer-
aalRunBeltTension]]]
3.55 (0.55%)*
27-33 in-lbs (3.1-3.7 Nm)
50-55 in-lbs (5.6-(6.2 Nm)
1 1/8 in - 1 3/16 in (2.8 cm - 3.0 cm)
1 Introduction
General Information
Page 8