Fastener Torques - Textron Bob-Cat Operator's Manual

HYDRO
MIDSIZE
AMERICAN NATIONAL STANDARD FASTENERS
SIZE UNITS
in-lbs (Nm)
6–32
8–32 in-lbs (Nm)
in-lbs (Nm)
10–24
in-lbs (Nm)
10–32
in-lbs (Nm)
12–24
in-lbs (Nm)
1/4–20
1/4–28 in-lbs (Nm)
in-lbs (Nm)
5/16–18
5/16–24
in-lbs (Nm)
3/8–16
ft-lbs (Nm)
3/8–24
ft-lbs (Nm)
7/16–14
ft-lbs (Nm)
7/16–20
ft-lbs (Nm)
1/2–13
ft-lbs (Nm)
1/2–20
ft-lbs (Nm)
9/16–12
ft-lbs (Nm)
9/16–18
ft-lbs (Nm)
5/8–11
ft-lbs (Nm)
5/8–18
ft-lbs (Nm)
3/4–10
ft-lbs (Nm)
3/4–16
ft-lbs (Nm)
7/8–14
ft-lbs (Nm)
SIZE UNITS
Nm (in-lbs)
M4
M5 Nm (in-lbs)
Nm (in-lbs)
M6
M8 Nm (in-lbs)
Nm (ft-lbs)
M10
M12 Nm (ft-lbs)
M14 Nm (ft-lbs)
GRADE 5 GRADE 8
20 (2.3) –
24 (2.7) 30 (3.4)
35 (4.0) 45 (5.1)
40 (4.5) 50 (5.7)
50 (5.7) 65 (7.3)
95 (10.7) 125 (14.1)
95 (10.7) 150 (17.0)
200 (22.6) 270 (30.5)
240 (27.1) 300 (33.9)
30 (40.7) 40 (54.2)
35 (47.5) 45 (61.0)
50 (67.8) 65 (88.1)
55 (74.6) 70 (94.9)
75 (101.7) 100 (135.6)
85 (115.3) 110 (149.2)
105 (142.4) 135 (183.1)
115 (155.9) 150 (203.4)
150 (203.4) 195 (264.4)
160 (217.0) 210 (284.8)
170 (230.5) 220 (298.3)
175 (237.3) 225 (305.1)
300 (406.8) 400 (542.4)
METRIC FASTENERS
4.8 5.8
4.8 5.8
1.2 (11) 1.7 (15)
2.5 (22) 3.2 (28)
4.3 (38) 5.7 (50)
10.5 (93) 13.6 (120)
21.7 (16) 27.1 (20)
36.6 (27) 47.5 (35)
58.3 (43) 76.4 (55)

FASTENER TORQUES

R
ECOMMENDED TORQUES
. U
GRADES OF FASTENERS
UNLESS OTHERWISE NOTED
R
ANSOMES USES GRADE
(
MINIMUM COMMERCIAL QUALITY
LOWER QUALITY BOLTS UNLESS OTHERWISE NOTED
SPECIFIC TORQUES
BLADE BOLT TORQUE: 70 FT-LBS
WHEEL HUB NUTS: 175 FT-LBS
ENGINE CRANKSHAFT BOLT: 50 FT-LBS
8.8 10.9
8.8 10.9
2.9 (26) 4.1 (36)
5.8 (51) 8.1 (72)
9.9 (88) 14.0 (124)
24.4 (216) 33.9 (300)
47.5 (35) 66.4 (49)
82.7 (61) 116.6 (86)
131.5 (97) 184.4 (136) 219.7 (162)
(± 10%)
FOR THESE
SE THESE SPECIFICATIONS
.
5
BOLTS AS STANDARD
). D
O NOT USE
.
Noncritical
12.9
12.9 Fasteners into
Aluminium
5.0 (44) 2.0 (18)
9.7 (86) 4.0 (35)
16.5 (146) 6.8 (60)
40.7 (360) 17.0 (150)
81.4 (60) 33.9 (25)
139.7 (103) 61.0 (45)
94.9 (70)
35