Service Recommendations for 37° Flare and 30° Cone Seat Connectors

1. Inspect flare and flare seat. They must be free of dirt or obvious defects.

2. Defects in tube flare cannot be repaired. Overtightening a defective flared fitting will not stop leaks.

3. Align tube with fitting before attempting to start nut.

4. Lubricate male threads with hydraulic fluid or petroleum jelly.

5. Index angle fittings and tighten by hand.

6. Tighten fitting or nut to torque value shown on torque chart. Do not allow hoses to twist when tightening fittings.

STRAIGHT FITTING OR SPECIAL NUT TORQUE CHART
Thread Size Nm lb-ft
3/8 - 24 UNF 8 6
7/16 - 20 UNF 12 9
1/2 - 20 UNF 16 12
9/16 - 18 UNF 24 18
3/4 - 16 UNF 46 34
7/8 - 14 UNF 62 46
1-1/16 - 12 UN 102 75
1-3/16 - 12 UN 122 90
1-5/16 - 12 UN 142 105
1-5/8 - 12 190 140
1-7/8 - 12 UN 217 160

 
T6234AC

T82,BHMA,EL -19-29SEP99-1/1