Bolt / nut tightening torques – Landoll HSB 71-1 through 131-1 SOIL BUILDER Coulter Chisel - Extended Frame User Manual
Page 14
1K705
Page 12
Fasteners
Before operating your Brillion Zone Commander,
check all hardware for tightness. Use the
Tightening Torque Chart reproduced below as
a guide.
After a few hours use, check entire machine
and tighten any loose nuts or bolts. Daily or
periodic checks should be made thereafter.
M
aintenance
M
aintenance
791rev6-23-08
BOLT / NUT TIGHTENING TORQUES
For Fine Threads Multiply Chart Values by 1.1
THREAD
BOLT GRADE
PLATED, STOVER
SIZE
LOCK NUTS
GRADE 2
GRADE 5
GRADE 8
GRADE B
GRADE C
MIN / MAX
MIN / MAX
1/4-20
5
8
12
5 / 7
7 / 10
5/16-18
11
17
24
10 / 12
11 / 16
3/8-16
20
30
45
15 / 20
20 / 28
7/16-14
30
50
70
23 / 32
31 / 43
1/2-13
50
75
105
37 / 50
45 / 62
9/16-12
70
110
155
50 / 70
70 / 95
5/8-11
100
150
210
70 / 95
90 / 122
3/4-10
170
270
375
125 / 165
155 / 210
7/8-9
165
430
610
185 / 250
225 / 312
1-8
250
645
910
275 / 375
360 / 462
1 1/8 - 7
355
795
1290
1 1/4 - 7
500
1120
1820
1 3/8 - 6
745
1670
2710
1 1/2 - 6
870
1950
3160
•VALUES ARE GIVEN IN FOOT-POUNDS.
•USE GRADE B LOCK NUTS WITH GRADE 2 AND GRADE 5 BOLTS ONLY.
•USE GRADE C LOCK NUTS WITH GRADE 8 BOLTS ONLY.