Practice Safe Maintenance; Torque Specifications; Standard Fasteners - Orthman 1TRIPR II ROW UNITS Operator's Manual

MAINTENANCE AND SPECIFICATIONS

Practice Safe Maintenance

Proper maintenance is your responsibility. Maintenance
neglect and/or poor maintenance practices can result in
injury or death. Always use the proper tools to maintain
the implement. For more information on practicing safe
maintenance, see "Practice Safe Maintenance" on
page 2-8.

Torque Specifications

Standard Fasteners

Unified bolt and screw torque values:
Bolt or
SAE Grade 1
Screw
Size
(inches) Lubricated
N•m lb-in
1/4
3.7 33
5/16 7.7 68
3/8 13.5 120
7/16 22 194
N•m lb-ft
1/2 34 25
9/16 48 35.5
5/8
67 49
3/4 120 88
7/8 190 140
1
285 210
1-1/8 400 300
1-1/4 570 420
1-3/8
750 550
1-1/2 990 730
Torque values listed are for general use only, based on the
strength of the bolt or screw. DO NOT use these values if a
different torque value or tightening procedure is given for a
specific application. For plastic insert or crimped steel type
lock nuts, for stainless steel fasteners, or for nuts on U-bolts,
see the tightening instructions for the specific application.
Shear bolts are designed to fail under predetermined loads.
Always replace shear bolts with identical grade.
Replace fasteners with the same or higher grade. If higher
grade fasteners are used, tighten these to the strength of the
original. Make sure fastener threads are clean and that you
properly start thread engagement. When possible, lubricate
plain or zinc plated fasteners other than lock nuts, wheel
SAE Grade 2
Dry Lubricated
N•m lb-in N•m lb-in
4.7 42 6 53
9.8 86 12 106
17.5 155 22 194
N•m lb-ft N•m lb-ft
28 20.5 35 26
42 31 53 39
60 45 76 56
85 63 105 77
150 110 190 140
240 175 190 140
360 265 285 210
510 375 400 300
725 535 570 420
950 700 750 550
1250 930 990 730
SAE Grade 5, 5.1,
or 5.2
Dry Lubricated
N•m lb-in N•m lb-in
7.5 66 9.5 84
15.5 137 19.5 172
N•m lb-ft
27 240 35 26
N•m lb-ft
44 32.5 56 41
67 49 85 63
95 70 125 92
135 100 170 125
240 175 300 220
240 175 490 360
360 265 730 540
510 375 910 670
725 535 1280 945
950 700 1700 1250
1250 930 2250 1650
bolts, or wheel nuts, unless different instructions are given for
the specific application.
Grade 2 applies to hex cap screws (not hex bolts) up to
6 in (152 mm) long. Grade 1 applies to hex cap screws over
6 in (152 mm) long, and for all other types of bolts and screws
of any length.
"Lubricated" means coated with a lubricant such as engine
oil, fasteners with phosphate and oil coatings, or 7/8 in. and
larger fasteners with JDM F13C zinc flake coating.
"Dry" means plain or zinc plated without any lubrication, or
1/4 to 3/4 in. fasteners with JDM F13B zinc flake coating.
7-2
SAE Grade 8 or 8.2
Dry Lubricated
N•m lb-in N•m lb-in
12 106 13.5 120
N•m lb-ft
25 221 28 20.5
N•m lb-ft
44 32.5 49 36
70 52 80 59
110 80 120 88
155 115 175 130
215 160 240 175
380 280 425 315
615 455 690 510
920 680 1030 760
1150 850 1450 1075
1630 1200 2050 1500
2140 1580 2700 2000
2850 2100 3600 2650
1TRIPR II Row Units OM-EN
Dry
N•m lb-in
17 150
N•m lb-ft
35 26
63 46
100 74
155 115
220 165
308 225
540 400
870 640
1300 960
1850 1350
2600 1920
3400 2500
4550 3350