Section 9: Torque & Tire Inflation Charts - Land Pride ZT60 Operator's Manual

Section 9: Torque & Tire Inflation Charts
Section 9: Torque & Tire Inflation Charts
Bolt Head Identification
Bolt Size
(Inches)
Grade 2
1 2
in-tpi N·m ft-lb
1/4" - 20 7.4 5.6
1/4" - 28 8.5 6
5/16" - 18 15 11
5/16" - 24 17 13
3/8" - 16 27 20
3/8" - 24 31 22
7/16" - 14 43 32
7/16" - 20 49 36
1/2" - 13 66 49
1/2" - 20 75 55
9/16" - 12 95 70
9/16" - 18 105 79
5/8" - 11 130 97
5/8" - 18 150 110
3/4" - 10 235 170
3/4" - 16 260 190
7/8" - 9 225 165
7/8" - 14 250 185
1" - 8 340 250
1" - 12 370 275
1-1/8" - 7 480 355
1 1/8" - 12 540 395
1 1/4" - 7 680 500
1 1/4" - 12 750 555
1 3/8" - 6 890 655
1 3/8" - 12 1010 745
1 1/2" - 6 1180 870
1 1/2" - 12 1330 980
Torque tolerance + 0%, -15% of torquing values. Unless otherwise specified use torque values listed above.
Drive Wheel Lug Nuts (1/2"-20 UNF)
Blade Spindle bolts (1/2"-20 UNF x 2 1/2" GR8)
Spindle Housing Flange Bolts
Idler Pulley bolts (5/8"-11 UNC GR5)
Electric Clutch Bolt (7/16"- 20 UNF GR*8)
9/03/10
Table of Contents
Torque Values Chart
Grade 5
Grade 8
3
N·m ft-lb N·m ft-lb
11 8 16 12
13 10 18 14
24 17 33 25
26 19 37 27
42 31 59 44
47 35 67 49
67 49 95 70
75 55 105 78
105 76 145 105
115 85 165 120
150 110 210 155
165 120 235 170
205 150 285 210
230 170 325 240
360 265 510 375
405 295 570 420
585 430 820 605
640 475 905 670
875 645 1230 910
955 705 1350 995
1080 795 1750 1290
1210 890 1960 1440
1520 1120 2460 1820
1680 1240 2730 2010
1990 1470 3230 2380
2270 1670 3680 2710
2640 1950 4290 3160
2970 2190 4820 3560
Additional Torque Values
Tire Inflation Chart
Tire
Drive Wheels
Caster Wheels
Bolt Head Identification
5.8
Bolt Size
(Metric)
Class 5.8
4
mm x pitch N·m ft-lb
M 5 X 0.8 4 3
M 6 X 1 7 5
M 8 X 1.25 17 12
M 8 X 1 18 13
M10 X 1.5 33 24
M10 X 0.75 39 29
M12 X 1.75 58 42
M12 X 1.5 60 44
M12 X 1 90 66
M14 X 2 92 68
M14 X 1.5 99 73
M16 X 2 145 105
M16 X 1.5 155 115
M18 X 2.5 195 145
M18 X 1.5 220 165
M20 X 2.5 280 205
M20 X 1.5 310 230
M24 X 3 480 355
M24 X 2 525 390
M30 X 3.5 960 705
M30 X 2 1060 785
M36 X 3.5 1730 1270
M36 X 2 1880 1380
1
in-tpi = nominal thread diameter in inches-threads per inch
2
N· m = newton-meters
3
ft-lb= foot pounds
4
mm x pitch = nominal thread diameter in millimeters x thread
pitch
75 ft-lbs.
60 to 70 ft-lbs.
55 ft-lbs
130 ft-lbs.
50 to 55 ft-lbs.
Inflation PSI
8 to 12
8 to 12
ZT60 & ZT72 Accu-Z
8.8 10.9
Class 8.8 Class 10.9
N·m ft-lb N·m
6 5 9
11 8 15
26 19 36
28 21 39
52 39 72
61 45 85
91 67 125
95 70 130
105 77 145
145 105 200
155 115 l215
225 165 315
240 180 335
310 230 405
350 260 485
440 325 610
650 480 900
760 560 1050
830 610 1150
1510 1120 2100
1680 1240 2320
2650 1950 3660
2960 2190 4100
102 N-m
82 to 95 N-m
75 N-m
176 N-m
68 to 75 N-m
®
Zero Turn Mowers 357-103M
ft-lb
7
11
27
29
53
62
93
97
105
150
160
230
245
300
355
450
665
780
845
1550
1710
2700
3220
59