① Set the specified torque with a constant torque wrench, lock and tighten.
② Keep the inside of the flare nut and flare pipe dust-proof to prevent foreign matter and dust from entering.
③ Lightly hand-tighten the flare nut and flare pipe, and tighten them with a constant torque wrench until they click.Fix one end with a spanner.
④ Assemble the flare pipe Comp so that it does not deform during installation.
(Do not force the assembly. Temporarily tighten both ends and then fully tighten one.)
Points to note: (1) There should be no line misalignment with the mating part.
(2) The control point is the tightening torque.
② Keep the inside of the flare nut and flare pipe dust-proof to prevent foreign matter and dust from entering.
③ Lightly hand-tighten the flare nut and flare pipe, and tighten them with a constant torque wrench until they click.Fix one end with a spanner.
④ Assemble the flare pipe Comp so that it does not deform during installation.
(Do not force the assembly. Temporarily tighten both ends and then fully tighten one.)
Points to note: (1) There should be no line misalignment with the mating part.
(2) The control point is the tightening torque.
combination material
Applicable tube | Flare type | |
Iron | Non-ferrous | |
4.76 | 13~18{133~184} | 6~11{61~112} |
6.35 | 16~23{163~235} | 8~15{82~153} |
8 | 29~39{296~398} | 20~29{204~290} |
10 | 39~49{398~500} | 27~39{275~398} |
12/12.7 | 59~78{602~795} | 44~59{449~602} |
15 | 69~93{704~948} | 51~69{520~704} |
N･m{kgf･cm}
table.Tightening torque (Refer to JASO F 402-90 commentary)
