Section 2 • SpecificationsNovember 2014Part No. 229753 GS-2669 RT • GS-3369 RT • GS-4069 RT 2 - 11SPECIFICATIONSTorque ProcedureSeal-Lok™ fittings1 Replace the O-ring. The O-ring must be replacedanytime the seal has been broken. The O-ringcannot be re-used if the fitting or hose end hasbeen tightened beyond finger tight.Note: The O-rings used in the Parker Seal Lok™fittings and hose ends are custom-size O-rings.They are not standard SAE size O-rings. They areavailable in the O-ring field service kit (Genie partnumber 49612).2 Lubricate the O-ring before installation.3 Be sure that the face seal O-ring is seated andretained properly.4 Position the tube and nut squarely on the faceseal end of the fitting and tighten the nut fingertight.5 Tighten the nut or fitting to the appropriatetorque per given size as shown in the table.6 Operate all machine functions and inspect thehoses and fittings and related components toconfirm that there are no leaks.JIC 37° fittings1 Align the tube flare (hex nut) against the nose ofthe fitting body (body hex fitting) and tighten thehex nut to the body hex fitting to hand-tight,approximately 30 in-lbs / 3.4 Nm.2 Make a reference mark on one of the flats of thehex nut, and continue it on to the body hexfitting with a permanent ink marker. Refer toFigure 1.Figure 1a hex nutb reference markc body hex fitting3 Working clockwise on the body hex fitting, makea second mark with a permanent ink marker toindicate the proper tightening position. Refer toFigure 2.Note: Use theJIC 37° Fittings table on the previouspage to determine the correct number of flats forthe proper tightening position.Note: The marks indicate that the correct tighteningpositions have been determined. Use the secondmark on the body hex fitting to properly tighten thejoint after it has been loosened.Figure 2a body hex fittingb reference markc second mark4 Tighten the hex nut until the mark on the hex nutis aligned with the second mark on the body hexfitting.5 Operate all machine functions and inspect thehoses and fittings and related components toconfirm that there are no leaks.abcabcb
