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Section 9: Appendix
ZT60 & ZT72 Zero Turning Radius Mowers Riding Mowers Accu-Z
®
357-103M
8/26/08
Land Pride
Table of Contents
Torque Values Chart
in-tpi
1
N·m
2
ft-lb
3
N·m ft-lb N·m ft-lb mm x pitch
4
N·m ft-lb N·m ft-lb N·m ft-lb
1/4" - 20 7.4 5.6 11 8 16 12 M 5 X 0.8 436597
1/4" - 28 8.5 6 13 10 18 14 M 6 X 1 7 5 11 8 15 11
5/16" - 18 15 11 24 17 33 25 M 8 X 1.25 17 12 26 19 36 27
5/16" - 24 17 13 26 19 37 27 M 8 X 1 18 13 28 21 39 29
3/8" - 16 27 20 42 31 59 44 M10 X 1.5 33 24 52 39 72 53
3/8" - 24 31 22 47 35 67 49 M10 X 0.75 39 29 61 45 85 62
7/16" - 14 43 32 67 49 95 70 M12 X 1.75 58 42 91 67 125 93
7/16" - 20 49 36 75 55 105 78 M12 X 1.5 60 44 95 70 130 97
1/2" - 13 66 49 105 76 145 105 M12 X 1 90 66 105 77 145 105
1/2" - 20 75 55 115 85 165 120 M14 X 2 92 68 145 105 200 150
9/16" - 12 95 70 150 110 210 155 M14 X 1.5 99 73 155 115 l215 160
9/16" - 18 105 79 165 120 235 170 M16 X 2 145 105 225 165 315 230
5/8" - 11 130 97 205 150 285 210 M16 X 1.5 155 115 240 180 335 245
5/8" - 18 150 110 230 170 325 240 M18 X 2.5 195 145 310 230 405 300
3/4" - 10 235 170 360 265 510 375 M18 X 1.5 220 165 350 260 485 355
3/4" - 16 260 190 405 295 570 420 M20 X 2.5 280 205 440 325 610 450
7/8" - 9 225 165 585 430 820 605 M20 X 1.5 310 230 650 480 900 665
7/8" - 14 250 185 640 475 905 670 M24 X 3 480 355 760 560 1050 780
1" - 8 340 250 875 645 1230 910 M24 X 2 525 390 830 610 1150 845
1" - 12 370 275 955 705 1350 995 M30 X 3.5 960 705 1510 1120 2100 1550
1-1/8" - 7 480 355 1080 795 1750 1290 M30 X 2 1060 785 1680 1240 2320 1710
1 1/8" - 12 540 395 1210 890 1960 1440 M36 X 3.5 1730 1270 2650 1950 3660 2700
1 1/4" - 7 680 500 1520 1120 2460 1820 M36 X 2 1880 1380 2960 2190 4100 3220
1 1/4" - 12 750 555 1680 1240 2730 2010
1
in-tpi = nominal thread diameter in inches-threads per inch
1 3/8" - 6 890 655 1990 1470 3230 2380
2
N· m = newton-meters
1 3/8" - 12 1010 745 2270 1670 3680 2710
3
ft-lb= foot pounds
1 1/2" - 6 1180 870 2640 1950 4290 3160
4
mm x pitch = nominal thread diameter in millimeters x thread
pitch
1 1/2" - 12 1330 980 2970 2190 4820 3560
Torque tolerance + 0%, -15% of torquing values. Unless otherwise specified use torque values listed above.
Additional Torque Values
Drive Wheel Lug Nuts (1/2"-20 UNF) 75 ft-lbs. 102 N-m
Blade Spindle bolts (1/2"-20 UNF x 2 1/2" GR8) 60 to 70 ft-lbs. 82 to 95 N-m
Spindle Housing Flange Bolts 55 ft-lbs 75 N-m
Idler Pulley bolts (5/8"-11 UNC GR5) 130 ft-lbs. 176 N-m
Electric Clutch Bolt (7/16"- 20 UNF GR*8) 50 to 55 ft-lbs. 68 to 75 N-m
Section 9: Appendix
Tire Inflation Chart
Tire Inflation PSI
Drive Wheels 8 to 12
Caster Wheels 8 to 12
Grade 2 Grade 5
Grade 8
Bolt Head Identification
Bolt Size
(Inches)
Class 5.8 Class 8.8 Class 10.9
Bolt Head Identification
Bolt Size
(Metric)
5.8
8.8 10.9