RadTech LS Tractor LW3150, Operator And Parts Manual

ADAPTER INSTALLATION PROCESS 

OM 0467QH-A 

[39] 

 JIC

T

HREAD 

I

DENTIFICATION 

&

T

ORQUE

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
JIC flare fittings seal with metal to metal contact between the flared nose of the fitting and the flared 
tube face in the female connection. 

The minimum torque values listed are to provide a benchmark that give optimum results for leak free 
connections. Actual torque values should be based on individual application.  

NOTE

: Do not apply thread sealant (Teflon tape) on the JIC threads. 

Leaks can result from vibration, thermal cycling and from loads being supported by the connection (i.e. 
using the fitting in the connection to support mechanical loads). 

IMPORTANT:

 Use the lowest torque value from the chart when wet torquing. 

R

ECOMMENDED 

A

SSEMBLY

STEP 1:

Inspect for possible contamination or 

damage from shipping or handling. Sealing 
surface should be smooth. 

STEP 2: 

Lubricate the threads and the entire 

surface of the cone with hydraulic fluid or a light 
lubricant. 

STEP 3: 

Align mating components for hand 

connection and turn flare nut until sealing 
surfaces make full contact. 

STEP 4: 

Torque nut to the values shown in the 

above table.  

STEP 5: 

When torquing nut onto a straight flared 

fitting, it may be necessary to also place a wrench 
on the flared fitting wrench pad to prevent it from 
turning during assembly. 

A

LTERNATE 

A

SSEMBLY 

M

ETHOD

STEP 1:

 Inspect for possible contamination or 

damage from shipping or handling. Sealing 
surface should be smooth. 

STEP 2:

Lubricate the threads and the entire 

surface of the cone with hydraulic fluid or a light 
lubricant.  

STEP 3:

Align mating components for hand 

connection and turn flare nut until sealing 
surfaces make full contact. 

STEP 4: 

Lightly wrench tighten the nut until 

there is resistance. 

STEP 5:

 Place a wrench on wrench pad next to 

nut as near the 6 o'clock position as possible.

STEP 6:

 Place second wrench on nut as near 

the 3 o'clock position as possible. 

STEP 7:

 Turn nut clockwise to no less than the 

4 o'clock position, but no more than the 6 
o'clock position. Required rotation generally 
decreases as size increases. 

D 

Identification

TORQUE 

in mm

of 

adapter

lbs-ft

N-m 

- -

5/16 

JIC

6-7

8-10 

- -

3/8 

JIC

6-9

8-12 

0.433 11

7/16 

JIC

9-12

12-16 

0.496 12.6

1/2 

JIC

14-15

19-21 

0.559 14.2

9/16 

JIC

18-20

24-27 

0.740 18.8

3/4 

JIC

27-39

37-53 

0.870 22.1

7/8 

JIC

36-63

49-85 

1.055 

26.8

1 1/16 JIC

65-88

88-119 

1.185 

30.1

1 3/16 JIC

75-103

102-140 

1.307 

33.2

1 5/16 JIC

85-113

115-153 

1.618 

41.1

1 5/8 JIC

115-133 

156-180 

1.870 

47.5

1 7/8 JIC

125-167 

169-226 

2.492 

63.3

2 1/2 JIC

190-258 

258-350