S. HIGH PRESSURE LINE Before removal of any HP line from vehicle, ensure to have line marking on coupling nut and adopter as given in below image. ASSEMBLY IN CASE OF NEW HP LINE FITMENT ON VEHICLE 1. For pre-swaged pipes, during making the joints on vehicle, turn the coupling nut to its original position by hand. 2. An increase in resistance will encountered at the original position, then tighten slightly with wrench. 3. Coupling nut shall ride freely on respective connectors. 4. Ensure proper alignment. 5. Do not use Teflon tape/thread sealant on ferrule joints. 6. Use of m/s Swagelok make Teflon tape 12.7 mm width (part number ms-str-8) on taper thread joints is allowed. 7. Insert the tube with pre-swaged ferrules into the fitting until the front ferule seats against the fitting body; rotate the nut finger tight. 8. Mark the nut at the 6 o clock position. 9. While holding the fitting body steady, tighten the nut one half turn to the 12 o clock position. Inspection check: if the nut was tightened 10. additionally during installation (step 10), use fig of step 9 for gauging, otherwise use fig in step 11. Position the Swagelok gap inspection gauge 11. next to the gap between the nut and body. If the gauge will not enter the gap, the fitting • is sufficiently tightened. 1.2L REVOTRON CNG PHASE-2 ENGINE 156
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