ADAPTER 8N2409 - Caterpillar

Illustration 1 g01848737Put nut (1) and sleeve (2) over the tube. Push the tube into the counterbore of the fitting body as far as possible. There are two methods that may be used to tighten the nut. Tighten the nut with one of two methods.
Tighten nut (1) to the torque that is specified in Table 1.
Tighten nut (1) by the number of turns that is specified in Table 1. The number of turns is for the turns after the nut is finger tight.
Table 1
Nominal Outer Diameter of the Tube Torque Turn Tightening
Nonmetallic Tubing Copper Tubing
6.35 mm (0.250 inch) 11 3 N m (97 27 lb in) 3 2
9.53 mm (0.375 inch) 20 3 N m (175 27 lb in) 4 2
12.70 mm (0.500 inch) 35 6 N m (26 4 lb ft) 4 2
15.88 mm (0.625 inch) 40 6 N m (30 4 lb ft) 3 1/2 3
19.05 mm (0.750 inch) 50 6 N m (37 4 lb ft) 3 1/2 3 Note: Clean the connectors and the seals and lubricate the connectors and seals by using Refrigerant Mineral Oil. This is a special oil that is compatible with R−134a.