Technical Data; Torque Specifications; Accessories - Husqvarna RZ4623 Operator's Manual

Torque Specifications

Engine crankshaft bolt
Deck pulley bolts
Lug nuts
Blade bolt
The torque values shown should be used as a general guideline when specific torque values are not given.
Grade
Size
¼
/16
5
/8
3
/16
7
½
/16
9
/8
5
¾
/8
7
1 /8
1
** Grade 5 - Minimum commercial quality (lower quality not recommended)
Grade
Size
M4
M5
M6
M7
M8
M10
M12
M14
M16
M18
M20
M22
M24
M27

Accessories

Collection system
50

TECHNICAL DATA

50 ft/lb (67 Nm)
150 ft/lb (203 Nm)
75 ft/lb (100 Nm)
90 ft/lb (122 Nm)
HEX HEAD CAP SCREWS
U.S. Standard Hardware
SAE Grade 5
ft./lbs Nm
9 12
18 24
31 42
50 68
75 102
110 150
150 203
250 339
378 513
782 1060
Metric Standard Hardware
Grade 8.8
ft./lbs Nm
1.5 2
3 4
5.2 7
8.2 11
13.5 18
24 32
43.5 58
70.5 94
108 144
142 190
195 260
276 368
353 470
530 707
Standard ¼" fasteners
Standard / " fasteners
5
16
Standard / " fasteners
3
8
Standard / " fasteners
7
16
Standard ½" fasteners
SAE Grade 8
ft./lbs Nm
13 18
28 38
46 62
75 108
115 156
165 224
225 305
370 502
591 801
1410 1912
Grade 10.9
ft./lbs Nm
2.2 3
4.5 6
7.5 10
12 16
18.8 25
35.2 47
62.2 83
100 133
147 196
202 269
275 366
390 520
498 664
474 996
9 ft/lb (12 Nm)
18 ft/lb (25 Nm)
33 ft/lb (44 Nm)
52 ft/lb (70 Nm)
80 ft/lb (110 Nm)
Flangelock Screw
w/Flangelock Nut
ft./lbs Nm
24 33
40 54
Grade 12.9
ft./lbs Nm
2.7 3.6
5.2 7
8.2 11
15 20
21.8 29
43.5 58
75 100
119 159
176 235
242 323
330 440
471 628
596 794
904 1205