INTRODUCTION
Torque - Standard torque data for hydraulics
TD65F Without cab, 12x12
LA
TD65F Without cab, 20x12
LA
TD75F Without cab, 12x12
LA
TD75F Without cab, 20x12
LA
TD85F Without cab, 12x12
LA
TD85F Without cab, 20x12
LA
Installation of adjustable fittings in straight
thread O-ring bosses
1. Lubricate the O-ring by coating it with a light oil or
petroleum. Install the O-ring in the groove adjacent
to the metal backup washer which is assembled at the
extreme end of the groove
(4)
.
2. Install the fitting into the SAE straight thread boss until
the metal backup washer contacts the face of the boss
(5)
.
NOTE:
Do not over tighten and distort the metal
backup washer.
3. Position the fitting by turning out (counterclockwise)
up to a maximum of one turn. Holding the pad of the
fitting with a wrench, tighten the locknut and washer
against the face of the boss
(6)
.
23085659
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Standard torque data for hydraulic tubes and fittings
Tube nuts for 37° flared fittings
O-ring boss plugs
adjustable fitting
locknuts, swivel JIC-
37° seats
Size
Tubing OD
Thread
size
Torque
Torque
4
6.4 mm
(
1/4 in
)
7/16-20
12 - 16 N·m
(
9 - 12 lb ft
)
8 - 14 N·m
(
6 - 10 lb ft
)
5
7.9 mm
(
5/16 in
)
1/2-20
16 - 20 N·m
(
12 - 15 lb ft
)
14 - 20 N·m
(
10 - 15 lb ft
)
6
9.5 mm
(
3/8 in
)
9/16-18
29 - 33 N·m
(
21 - 24 lb ft
)
20 - 27 N·m
(
15 - 20 lb ft
)
8
12.7 mm
(
1/2 in
)
3/4-16
47 - 54 N·m
(
35 - 40 lb ft
)
34 - 41 N·m
(
25 - 30 lb ft
)
10
15.9 mm
(
5/8 in
)
7/8-14
72 - 79 N·m
(
53 - 58 lb ft
)
47 - 54 N·m
(
35 - 40 lb ft
)
12
19.1 mm
(
3/4 in
)
1-1/16-12
104 - 111 N·m
(
77 - 82 lb ft
)
81 - 95 N·m
(
60 - 70 lb ft
)
14
22.2 mm
(
7/8 in
)
1-3/16-12
122 - 136 N·m
(
90 - 100 lb ft
)
95 - 109 N·m
(
70 - 80 lb ft
)
16
25.4 mm
(
1 in
)
1-5/16-12
149 - 163 N·m
(
110 - 120 lb ft
)
108 - 122 N·m
(
80 - 90 lb ft
)
20
31.8 mm
(
1-1/4 in
)
1-5/8-12
190 - 204 N·m
(
140 - 150 lb ft
)
129 - 158 N·m
(
95 - 115 lb ft
)
24
38.1 mm
(
1-1/2 in
)
1-7/8-12
217 - 237 N·m
(
160 - 175 lb ft
)
163 - 190 N·m
(
120 - 140 lb ft
)
32
50.8 mm
(
2 in
)
2-1/2-12
305 - 325 N·m
(
225 - 240 lb ft
)
339 - 407 N·m
(
250 - 300 lb ft
)
These torques are not recommended for tubes of
12.7 mm
(
1/2 in
) OD and larger with wall thickness of
0.889 mm
(
0.035 in
) or less. The torque is specified for
0.889 mm
(
0.035 in
) wall tubes on each application individually.
Before installing and torquing
37 °
flared fittings, clean the face of the flare and threads with a clean solvent or Loctite
cleaner and apply hydraulic sealant
L
OCTITE
® 569™
to the
37 °
flare and the threads.
Install fitting and torque to specified torque, loosen fitting and retorque to specifications.
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