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5–17 T-375
5.7 Unidrive Torque Requirements
Extensive damage may occur if the proper hardware is not used and/or proper procedures are not followed when
working with the unidrive assembly. Periodic inspection of hardware and bolt torque is recommended to ensure the
integrity of the unidrive. Torque value and hardware requirements for unidrive assembly are provided in Figure 5.14 .
NOTICE
SST is an abbreviation for 300 Series Corrosion Resistant Steel. Loctite #242 or an equivalent
product should be used on ALL hardware shown in Figure 5.14 .
Figure 5.14 Unidrive Torque Requirements
Truss and Isolator
1/2-13 x 3-1/2 lg - SST
(2 req’d) 101.69 Nm (75 ft-lb)
3/8-16 x 1 lg - SST
(4 req’d) 33.90 Nm (25 ft-lb)
3/8 x 1.5 lg - SST
(12 req’d) 33.90 Nm (25 ft-lb)
5/8-18 x 2.00 lg - SST
(4 req’d) 123.38 - 128.80 Nm
(91-95 ft-lb)
Nut, Self Lock 3/8-16 - SST
(2 req’d) 40.67-52.88 Nm (30-39 ft-lb)
M8 x 1-1/4 lg - STL
(4 req’d) 14.91 Nm (11 ft-lb)
3/8-16 x 1-1/4 lg - SST
(4 req’d) 40.67-52.88 Nm
(30-39 ft-lb)
Torsional Dampener
5/8-11 x 4.00 lg - SST
(2 req’d) 122.02 Nm (90 ft-lb)
M8 x 50 mm Allen
(6 req’d ) 25.76 Nm (19 ft-lb)
3/8-24 x 1.00
(1 req’d) 37.96 Nm (28 ft-lb)