tebben tc10-500-sm, Operator'S Manual, Page: 26 / 34

BOLT TORQUE
CHECKING BOLT TORQUE
The tables shown below give correct torque values for various bolts and cap screws.
Tighten all bolts to the torques specified in the chart unless otherwise noted.
Check tightness of bolts periodically, using bolt torque chart as a guide. Make sure
To replace worn out bolts and nuts with the same grade your machine came with.
ENGLISH TORQUE SPECIFICATIONS
Bolt Bolt Torque
Diameter SAE 2 SAE 5 SAE 8
“A”
N.m (lb-ft) N.m (lb-ft) N.m (lb-ft)
¼”
8 (6) 12 (9) 17 (12)
5/16”
13 (10) 25 (19) 36 (27)
3/8”
27 (20) 45 (33) 63 (45)
7/16”
41 (30) 72 (53) 100 (75)
½”
61 (45) 110 (80) 155 (115)
9/16”
95 (70) 155 (115) 220 (165)
5/8”
128 (98) 215 (160) 305 (220)
¾”
225 (165) 390 (290) 540 (400)
7/8”
230 (170) 570 (420) 880 (650)
1”
345 (225) 850 (630) 1320 (970
)
Torque figures indicated above are called for non-greased or non oiled threads and
heads unless otherwise specified. Therefore, do not grease or oil bolts unless
otherwise specified in this manual. When using locking elements, increase torque
values by 5%.
Torque values for bolts are identified by their head markings.
SAE-2 SAE-5 SAE-8
A
22
IMPORTANT : Locking nuts on cylinders and pivoting components should only be
tightened to the point where the bolt no longer turns. Over tightening of these nuts
can result in damaged parts.