TM 1-1740-221-13&P&P
FIELD MAINTENANCE
TORQUE LIMITS
WARNING
Shut off and tag out the vehicle before adjusting, lubricating, cleaning or otherwise servicing.
Failure to do so could result in an unexpected startup which could result in injury or death.
Follow the recommended maintenance program to prevent unsafe operation or accidents.
Keep maintenance area clean and dry. Oily and wet spots are slippery, greasy rags are a ire
hazard, and wet spots are dangerous around electrical equipment.
CAUTION
Using non-original replacement parts is not recommended. Their use may cause unit failure
and/or affect vehicle safety.
NOTE
Before attempting to repair the MT3 SATS, be familiar with the information on these pages.
BOLT TIGHTENING DATA
NOTE
Do not use these values if a different torque value is given for a speciic procedure.
The following tables contain detailed information about variables for torque management to achieve correct
fastener joint tightening. This is an advisory guide and responsibility for its application rests with the user.
If the fastened part is aluminum, reduce torque 25%
Fasteners should be replaced with the same or higher grade. If higher grade fasteners are used, they should
be tightened to the strength of the original fastener.
Locknuts: Tighten plastic-insert or crimped-steel-type locknuts to approx. 50% of the dry torque shown (applied
to the nut, not the screw head).
Table 1. US Bolt Identiication
U.S. Bolt Grades
SAE 2
SAE 5
SAE 7
SAE 8
WP0130F4
WP0130F3
WP0130F3
WP0130F1
I.D. Marks
No markings
3 lines
5 lines
6 lines
Medium-carbon,
Material
Medium-carbon, Medium-carbon,
Low Carbon
quenched &
tempered
quenched &
tempered
tempered
Tensile strength
74,000 psi
120,000 psi
150,000 psi
160,000 psi
(Minimum)
01421
