Schwing SPB 28, Operation Manual

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Appendix
SPB Operation Manual
Torque Specifications for Metric Bolts
The following charts show the tightening torques speci-
fied for the bolts used on Schwing equipment.
A torque wrench must be calibrated to within 1% of its
indicated value throughout its range. Bolts must be
torqued to within 4% of the requirement if the wrench
has a dial scale. If no dial scale is present, the bolts
must be torqued to within 6% of the requirement.
For example, a bolt to be torqued to a 200 pound re-
quirement must be within the range of 208–192 foot
pounds for a dial scale torque wrench.
Schwing equipment uses two different types of bolts;
one has a black or silver finish and the other has a Da -
cromet/Geomet finish.
Torque specifications are very important for proper ma -
chine function. For more information on this subject, re-
fer to the section on bolt tightening in the Maintenance
section of this manual.
Example
Dia =
8 mm
Pitch =
1.25 mm
Wrench Size
= 13 mm
M 8 X 1.25
The torque specifications on the following pages refer
to wrench size, bolt size and thread pitch. Above is an
example showing what those numbers refer to.