Torque Specifications - Jonsered Z42F Manual Del Operador

TECHNICAL DATA

Torque Specifications

Engine crankshaft bolt
Deck pulley bolts
Lug nuts
Blade bolt
U.S. Standard Hardware
Grade
Size
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1-1/8
** Grade 5 - Minimum commercial quality (lower quality not recommended)
Metric Standard Hardware
Grade
Size
M4
M5
M6
M7
M8
M10
M12
M14
M16
M18
M20
M22
M24
M27
HEX HEAD CAP SCREWS
The torque values shown must be used as a general guideline
when specific torque values are not given.
SAE Grade 5
ft./lbs Nm
9
18
31
50
75 102
110 149
150 203
250 339
378 512
782 1060
Grade 8.8
ft./lbs
1.5
3
5.2
8.2
13.5
24
43.5
70.5
108
142
195
276
353
530
Standard 1/4" fasteners
50 ft/lb
Standard 5/16" fasteners
150 ft/lb
Standard 3/8" fasteners
75 ft/lb
Standard 7/16" fasteners
90 ft/lb
Standard 1/2" fasteners
SAE Grade 8
ft./lbs
12 13
24 28
42 46
68 75
115
165
225
370
591
1410
Grade 10.9
Nm ft./lbs
2 2.2
4 4.5
7 7.5
11 12
18 18.8
33 35.2
59 62.2
96 100
146 147
193 202
264 275
374 390
478 498
719 735
9 ft/lb
18 ft/lb
33 ft/lb
52 ft/lb
80 ft/lb
Flangelock Screw
w/Flangelock Nut
Nm ft./lbs
18
38 24
62 40
102
156
224
305
502
801
1912
Grade 12.9
Nm ft./lbs
3 2.7
6 5.2
10 8.2
16 15
25 21.8
48 43.5
84 75
136 119
199 176
274 242
373 330
529 471
675 596
996 904
Nm
33
54
Nm
3.7
7
11
20
30
59
102
161
239
328
447
639
808
1226
33