Toro Power Clear 621 User Manual

SPECIFICATIONS & MAINTENANCE
2-3
Toro Single Stage Snow Service Manual
Standard Torque Values (Inch)
Thread Size
Grade 1, 5, & 8
with Thin Height
Nuts
SAE Grade 1 Bolts SAE Grade 5 Bolts SAE Grade 8 Bolts
In-lb In-lb N-cm In-lb N-cm In-lb N-cm
1/4-20 UNC 48 ± 7 53 ± 7 599 ± 79 100 ± 10 1125 ± 100 140 ± 15 1580 ± 170
1/4-28 UNF 53 ± 7 65 ± 10 734 ± 113 115 ± 10 1300 ± 100 160 ± 15 1800 ± 170
5/16-18 UNC 115 ± 15 105 ± 15 1186 ± 169 200 ± 25 2250 ± 280 300 ± 30 3390 ± 340
5/16-24 UNF 138 ± 17 128 ± 17 1446 ± 192 225 ± 25 2540 ± 280 325 ± 30 3670 ± 340
ft-lb ft-lb N-m ft-lb N-m ft-lb N-m
3/8-16 UNC 16 ± 2 16 ± 2 22 ± 3 30 ± 3 41 ± 4 43 ± 4 58 ± 5
3/8-24 UNF 17 ± 2 18 ± 2 24 ± 3 35 ± 3 47 ± 4 50 ± 4 68 ± 5
7/16-14 UNC 27 ± 3 27 ± 3 37 ± 4 50 ± 5 68 ± 7 70 ± 7 68 ± 9
7/16-20 UNF 29 ± 3 29 ± 3 39 ± 4 55 ± 5 75 ± 7 77 ± 7 104 ± 9
1/2-13 UNC 30 ± 3 48 ± 7 65 ± 9 75 ± 8 102 ± 11 105 ± 10 142 ± 14
1/2-20 UNF 32 ± 3 53 ± 7 72 ± 9 85 ± 8 115 ± 11 120 ± 10 163 ± 14
5/8-11 UNC 65 ± 10 88 ± 12 119 ± 16 150 ± 15 203 ± 20 210 ± 20 285 ± 27
5/8-18 UNF 75 ± 10 95 ± 15 129 ± 20 170 ± 15 230 ± 20 240 ± 20 325 ± 27
3/4-10 UNC 93 ± 12 140 ± 20 190 ± 27 265 ± 25 359 ± 34 374 ± 35 508 ± 47
3/4-16 UNF 115 ± 15 165 ± 25 224 ± 34 300 ± 25 407 ± 34 420 ± 35 569 ± 47
7/8-9 UNC 140 ± 20 225 ± 25 305 ± 34 430 ± 45 583 ± 61 600 ± 60 813 ± 81
7/8-14 UNF 155 ± 25 260 ± 30 353 ± 41 475 ± 45 644 ± 61 660 ± 60 895 ± 81
Standard Torque Values (Metric Fasteners)
Thread Size Class 8.8 Bolts Class 10.9 Bolts
M5 X 0.8 57 ± 5 inlb 644 ± 68 Ncm 78 ± 8 inlb 881 ± 90 Ncm
M6 X 1.0 96 ± 10 inlb 1085 ± 113 Ncm 133 ± 14 inlb 1503 ± 158 Ncm
M8 X 1.25 19 ± 2 ftlb 26 ± 3 Nm 28 ± 3 ftlb 38 ± 4 Nm
M10 X 1.5 38 ± 4 ftlb 52 ± 5 Nm 54 ± 6 ftlb 73 ± 8 Nm
M12 X 1.75 66 ± 7 ftlb 90 ± 10 Nm 93 ± 10 ftlb 126 ± 14 Nm
M16 X 2.0 166 ± 15 ftlb 225 ± 23 Nm 229 ± 23 ftlb 310 ± 31 Nm
M20 X 2.5 325 ± 33 ftlb 440 ± 45 Nm 450 ± 36 ftlb 610 ± 62 Nm
INCH/METRIC NOTE: Reduce torque values
listed in the table above by 25% for lubricated
fasteners. Lubricated fasteners are dened
as threads coated with a lubricant such as oil,
graphite, or thread sealant such as Loctite
®
.
INCH/METRIC NOTE: Torque values may
have to be reduced when installing fasteners
into threaded aluminum or brass. The
specic torque value should be determined
based on the fastener size, the aluminum
or base material strength, length of thread
engagement, etc.
INCH/METRIC NOTE: The nominal torque
values listed above for Grade 5 and 8
fasteners are based on 75% of the minimum
proof load specied in SAE J429.
The tolerance is approximately ± 10% of the
nominal torque value. Thin height nuts include
jam nuts.
METRIC NOTE: The nominal torque values
listed above are based on 75% of the
minimum proof load specied in SAE J1199.
The tolerance is approximately ± 10% of the
nominal torque value. Thin height nuts include
jam nuts.
Specications & Maintenance
2

Toro Power Clear 621 Specifications

General

Brand	Toro
Model	Power Clear 621
Category	Snow Blower
Language	English