Torque Specification; Specific Torque - Jacobsen Super LF 1880 Parts & Maintenance Manual

3.17 TORQUE SPECIFICATION ___________________________________________________

All torque values included in these charts are approximate and are for reference only. Use of these torque values is
at your sole risk. Jacobsen is not responsible for any loss, claim, or damage arising from the use of these charts.
Extreme caution should always be used when using any torque value.
Jacobsen uses Grade 5 bolts as standard, unless otherwise noted.
AMERICAN NATIONAL STANDARD FASTENERS
SIZE UNITS
#6-32 in-lbs (Nm)
#8-32 in-lbs (Nm)
#10-24 in-lbs (Nm)
#10-32 in-lbs (Nm)
#12-24 in-lbs (Nm)
1/4-20 in-lbs (Nm)
1/4-28 in-lbs (Nm)
5/16-18 in-lbs (Nm)
5/16-24 in-lbs (Nm)
3/8-16 ft-lbs (Nm)
3/8-24 ft-lbs (Nm)
SIZE UNITS
M4 Nm (in-lbs)
M5 Nm (in-lbs)
M6 Nm (in-lbs)
M8 Nm (in-lbs)
M10 Nm (ft-lbs)
M12 Nm (ft-lbs)
M14 Nm (ft-lbs)

3.18 SPECIFIC TORQUE ________________________________________________________

1. Ball joints: 30-35 ft-lb (40.5 - 47.2 Nm).
2. Bedknife shoe: 25 - 37 ft-lb (34 - 50 Nm).
GRADE 5 GRADE 8
20 (2.3) –
24 (2.7) 30 (3.4)
35 (4.0) 45 (5.1)
40 (4.5) 50 (5.7)
50 (5.7) 65 (7.3)
95 (10.7) 125 (14.1)
95 (10.7) 150 (17.0)
200 (22.6) 270 (30.5)
240 (27.1) 300 (33.9)
30 (40.7) 40 (54.2)
35 (47.5) 45 (61.0)
METRIC FASTENERS
4.8 5.8
1.2 (11) 1.7 (15)
2.5 (22) 3.2 (28)
4.3 (38) 5.7 (50)
10.5 (93) 13.6 (120)
21.7 (16) 27.1 (20)
36.6 (27) 47.5 (35)
58.3 (43) 76.4 (55)
NOTICE
AMERICAN NATIONAL STANDARD FASTENERS
SIZE UNITS
7/16-14 ft-lbs (Nm)
7/16-20 ft-lbs (Nm)
1/2-13 ft-lbs (Nm)
1/2-20 ft-lbs (Nm)
9/16-12 ft-lbs (Nm)
9/16-18 ft-lbs (Nm)
5/8-11 ft-lbs (Nm)
5/8-18 ft-lbs (Nm)
3/4-10 ft-lbs (Nm)
3/4-16 ft-lbs (Nm)
7/8-14 ft-lbs (Nm)
8.8
2.9 (26) 4.1 (36)
5.8 (51) 8.1 (72)
9.9 (88) 14.0 (124)
24.4 (216) 33.9 (300)
47.5 (35) 66.4 (49)
82.7 (61) 116.6 (86)
131.5 (97) 184.4 (136)
3. Steering wheel nut: 25 - 30 ft-lb (34 - 41 Nm).
4. Wheel Bolts: 85-95 ft.lbs. (115-128 Nm) .
ADJUSTMENTS
GRADE 5
50 (67.8)
55 (74.6)
75 (101.7)
85 (115.3)
105 (142.4)
115 (155.9)
150 (203.4)
160 (217.0)
170 (230.5)
175 (237.3)
300 (406.8)
10.9 12.9
5.0 (44)
9.7 (86)
16.5 (146)
40.7 (360)
81.4 (60)
139.7 (103)
219.7 (162)
3
GRADE 8
65 (88.1)
70 (94.9)
100 (135.6)
110 (149.2)
135 (183.1)
150 (203.4)
195 (264.4)
210 (284.8)
220 (298.3)
225 (305.1)
400 (542.4)
Non Critical
Fasteners into
Aluminum
2.0 (18)
4.0 (35)
6.8 (60)
17.0 (150)
33.9 (25)
61.0 (45)
94.9 (70)
15