44
TORQUE SETTINGS FOR FASTENERS
The chart below lists the correct tightening torque for fasteners. This chart should be
referred to when tightening or replacing bolts in order to determine the grade of bolt and
the correct torque unless specific torque values are assigned in the text of the manual.
Recommended torque is quoted in Foot-Pounds and Newton-Metres within this manual.
The equation for conversion is 1 Nm. = 1.356 ft. lbs.
TORQUE VALUES FOR IMPERIAL BOLTS
Bolt
Dia.
ft.lb.
Nm.
ft.lb.
Nm.
ft.lb.
Nm.
1/4"
5.5
7.5
9
12.2
12.5
17.0
5/16"
11
15.0
18
25.0
26
35.2
3/8"
20
27.0
33
45.0
46
63.0
7/16"
32
43.0
52
70.0
75
100.0
1/2"
50
68.0
80
110.0
115
155.0
9/16"
70
95.0
115
155.0
160
220.0
5/8"
100
135.0
160
220.0
225
305.0
3/4"
175
240.0
280
380.0
400
540.0
7/8"
175
240.0
450
610.0
650
880.0
1"
270
360.0
675
915.0
975
1325.0
1-1/8"
375
510.0
850
115.0
1350
1830.0
1-1/4"
530
720.0
1200
1626.0
1950
2650.0
1-3/8"
700
950.0
1550
2100.0
2550
3460.0
1-1/2"
930
1250.0
2100
2850.0
3350
4550.0
TORQUE VALUES FOR METRIC BOLTS.
Bolt
Dia.
ft.lb.
Nm.
ft.lb.
Nm.
ft.lb.
Nm.
ft.lb.
Nm.
6mm
4.5
6.1
8.5
11.5
12
16.3
14.5
20.0
8mm
11
14.9
20
27.1
30
40.1
35
47.5
10mm
21
28.5
40
54.2
60
81.4
70
95.0
12mm
37
50.2
70
95.0
105
140.0
120
160.0
14mm
60
81.4
110
150.0
165
225.0
190
260.0
16mm
92
125.0
175
240.0
255
350.0
300
400.0
18mm
125
170.0
250
340.0
350
475.0
410
550.0
20mm
180
245.0
350
475.0
500
675.0
580
790.0
22mm
250
340.0
475
645.0
675
915.0
800
1090.0
24mm
310
420.0
600
810.0
850
1150.0
1000
1350.0
27mm
450
610.0
875
1180.0
1250
1700.0
1500
2000.0
30mm
625
850.0
1200
1626.0
1700
2300.0
2000
2700.0
Head Marking
12.9
Value (Dry)
Value (Dry)
Value (Dry)
Head Marking
Head Marking
8.8
10.9
Head Marking
4.8
Value (Dry)
Value (Dry)
Value (Dry)
Value (Dry)
Head Marking
Head Marking
Head Marking
No Marks
Three Lines
Six Lines
Grade Two
Grade Five
Grade Eight
4.8
10.9
8.8
12.9
NOTE:
The values in
the chart apply
to fasteners as
received from
the supplier,
dry or when
lubricated with
normal engine
oil. They DO
NOT apply if
special
graphited,
molydisulphide
greases, or
other extreme
pressure
lubricants are
used. This
applies to both
UNF and UNC
coarse threads
.
Summary of Contents for TC526
Page 1: ...TWOSE TC526 Hedgecutter Grass Mower Operation Manual Publication No 676 June 2011 Rev 09 01 12...
Page 2: ......
Page 6: ......
Page 10: ......
Page 15: ...4 SAFETY INFORMATION...
Page 27: ...16 1 2 3 4 5 6...
Page 28: ...17 8 10 7 9 12 11...
Page 29: ...18 FLAIL MOTOR HOSE INSTALLATION...
Page 33: ...22 CABLE CONTROLS LEVER FUNCTIONS...
Page 34: ...23 SWITCHBOX CONTROLS Operation and Functions...
Page 36: ...25 MONOLEVER CONTROLS Operation and Functions...
Page 38: ...27 PROPORTIONAL CONTROLS Operation and Functions...
Page 56: ......
