Installation Of Adjustable Fittings In Straight Thread O Ring Bosses; Standard Torque Data For Hydraulic Tubes And Fittings - New Holland LS140 Workshop Manual

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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
(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.

STANDARD TORQUE DATA FOR HYDRAULIC TUBES AND FITTINGS

FOR 37° FLARED FITTINGS
TUBING
SIZE
OD
mm
In.
4
6.4
1/4
5
7.9
5/16
6
9.5
3/8
8
12.7
1/2
10
15.9
5/8
12
19.1
3/4
14
22.2
7/8
16
25.4
1
20
31.8
1-1/4
24
38.1
1-1/2
32
50.8
2
These torques are not recommended for tubes of
12.7 mm (1/2") OD and larger with wall thickness of
0.889 mm (0.035") or less. The torque is specified for
0.889 mm (0.035") wall tubes on each application
individually.
Before installing and torquing 37° flared fittings,
clean the face of the flare and threads with a clean
SECTION 00 - GENERAL INFORMATION
by
turning
out
TUBE NUTS
TORQUE
THREAD
NEWTON
SIZE
METERS
Min. Max.
7/16-20
12
16
1/2-20
16
20
9/16-18
29
33
3/4-18
47
54
7/8-14
72
79
1-1/16-12
104
111
1-3/16-12
122
136
1-5/16-12
149
163
1-5/8-12
190
204
1-7/8-12
217
237
2-1/2-12
305
325
00-12
O RING BOSS PLUGS
ADJUSTABLE FITTING
LOCKNUTS, SWIVEL
JIC - 37° SEATS
FOOT
NEWTON
POUNDS
METERS
Min. Max.
Min. Max.
9
12
8
12
15
14
21
24
20
35
40
34
53
53
47
77
82
81
90
100
95
110
120
108
140
150
129
160
175
163
225
240
339
solvent or Loctite cleaner and apply hydraulic sealant
Loctite no. 569 to the 37° flare and the threads.
Install fitting and torque to specified torque, loosen
fitting and retorque to specifications.
Copyright © New Holland
3
TORQUE
FOOT
POUNDS
Min. Max.
14
6
10
20
10
15
27
15
20
41
25
30
54
35
40
95
60
70
109
70
80
122
80
90
158
95
115
190
120
140
407
250
300

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