Torque Specifications; Fastener Identification - Toro GreensPro 1200 Service Manual

Torque Specifications

Recommended fastener torque values are listed in the
following tables. For critical applications, as determined
by Toro, either the recommended torque or a torque
that is unique to the application is clearly identified and
specified in this Service Manual.
These Torque Specifications for the installation and
tightening of fasteners shall apply to all fasteners that
do not have a specific requirement identified in this
Service Manual. The following factors shall be
considered when applying torque: cleanliness of the
fastener, use of a thread sealant (e.g., Loctite
degree of lubrication on the fastener, presence of a
prevailing torque feature (e.g., Nylock nut), hardness of
the surface underneath the fastener's head, or a similar
condition that affects the installation.

Fastener Identification

(Figures 1 and 2.)
Grade 1 Grade 5
Figure 1: Inch Series Bolts and Screws
Product Records and Maintenance
As noted in the following tables, torque values should
be reduced by 25% for lubricated fasteners to achieve
the similar stress as a dry fastener. Torque values may
also have to be reduced when the fastener is threaded
into aluminum or brass. The specific torque value
should be determined based on the aluminum or brass
material strength, fastener size, length of thread
engagement, etc.
The standard method of verifying torque shall be
performed by marking a line on the fastener (head or
®
), nut) and mating part, then backing off fastener 1/4 of a
turn. Measure the torque required to tighten the
fastener until the lines match up.
Grade 8
Page 2 - 4
Class 8.8
Figure 2: Metric Bolts and Screws
Class 10.9
GreensPro 1200