Assembly Instructions For 37° (Jic) Flare Fittings - JLG G5-18A Service Manual

General Information and Specifications
2.8.4 Assembly Instructions for 37° (JIC) Flare
Fittings
1. Inspect the flare for obvious visual squareness and
concentricity issues with the tube OD. Ensure that
surface is smooth, free of rust, weld and brazing splatter,
splits, dirt, foreign matter, or burrs. If necessary, replace
fitting or adapter.
NOTICE
DO NOT force a misaligned or short hose/tube into
alignment. It puts undesirable strain onto the joint
eventually leading to leakage.
a. 37° Flare (JIC) Thread - Steel
Dash
Material
Size
STEEL FITTINGS
WITH STEEL
MATING
COMPONENTS;
UN-LUBRICATED
THREADS
* ØA and ØB thread dimensions for reference only.
NOTE:
** Refer to Section 2.8.15, "FFWR and TFFT Methods. " , for FFWR procedure requirements.
2-26
TYPE/FITTING IDENTIFICATION
Thread
ØA*
Size
(UNF) (in) (mm)
2 5/16-24 0.28 7.00
3 3/8-24 0.34 8.60
4 7/16-20 0.39 10.00
5 1/2-20 0.46 11.60
6 9/16-18 0.51 13.00
8 3/4-16 0.69 17.60
10 7/8-14 0.81 20.50
12 1 1/16-12 0.97 24.60
14 1 3/16-12 1.11 28.30
16 1 5/16-12 1.23 31.30
20 1 5/8-12 1.54 39.20
24 1 7/8-12 1.80 45.60
32 2 1/2-12 2.42 61.50
2. Align tube to fitting and start threads by hand.
The torque method should NOT be used on lubricated or
oily fittings. No lubrication or sealant is required. The
lubrication would cause increased clamping force and
cause fitting damage.
3. Torque assembly to value listed in below mentioned
table while using the Double Wrench Method.
Note: Torque values provided in below table are segregated
based on the material configuration of the connection.
ØB* [Ft-Lb]
(in) (mm) Min Nom
0.31 7.75 6 7
0.37 9.50 8 9
0.44 11.10 13 14
0.50 12.70 14 15
0.56 14.30 22 23
0.75 19.10 42 44
0.87 22.20 60 63
1.06 27.00 84 88
1.19 30.10 100 105
1.31 33.30 118 124
1.63 41.30 168 176
1.87 47.60 195 205
2.50 63.50 265 278
NOTICE
MAE9130
[Nm]
Max Min Nom Max
7 8 9 10
10 11 12 14
14 18 19 19
15 19 20 21
24 30 31 33
46 57 60 63
66 81 85 89
92 114 120 125
110 136 142 149
130 160 168 176
185 228 239 251
215 264 278 291
292 359 377 395
Flats From
Wrench
Resistance
(F.F.W.R)**
--
--
1-1/2 to 1-3/4
1 to 1-1/2
1 to 1-1/2
1-1/2 to 1-3/4
1 to 1-1/2
1 to 1-1/2
1 to 1-1/2
3/4 to 1
3/4 to 1
3/4 to 1
3/4 to 1
G5-18A, 2505