b'Double-Pull CylindersDouble-pull cylinders have rods on both ends and are used with mainsheet travelers or jib sheet car systems to easily adjust loaded sails. As oil is pumped into the cylinder, the rod pulls the traveler while the other rod eases. Reverse the process and the eased rod pulls the other way. Delrin isolaters separate the cylinders from the metal elements of the hull to prevent corrosion.What makes Harken double-pull cylinders unique is the way they are installed on the boat. To take the cylinder off the mounting brackets for service, the user simply removes four screws, leaving both brackets in place.Double-pull cylinders do not come with end fittings on the rod because of the variety of cylinder functions. On page 233,Disassembled endcap with Delrinyoull find a selection of end fittings to choose from.isolator.Fittings are sold separately.Length overallOverall bracket spacing Stroke (S)C DBADouble-Pull Cylinder Part NumberCylinders are made to order. Specify desired stroke length in millimeters and optional endttings when ordering.HYCP03513xxxxBNNHydraulicCylinder Action typeP = Double-acting pull/pullBore diameter (mm)Rod diameter (mm)Stroke length (mm)Materials B = Black hardcoat-anodized aluminumOptional rod end fittings (specify each end separately) C, L, or N (see page 233 for options); rod end blocks (see page 235)Delrin is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.Zero strokeWeightZero strokebracket spacingMountingOutsideRod Rod thread Part length (A)* (B)** retainer(C) (D) thread size length lb @ zero stroke kg @ zero stroke No. - Size in mm in mm in mm in mm UNF 2A in mm length + lb/in stroke length + kg/mm stroke HYCP02511xxxxBNN-611.84300.88.552171.6412517/16-201252.07 + .140.94 + .002 HYCP03513xxxxBNN-1013.863529.27235.51.9472.2571/2-201.6413.41 + .251.55 + .005HYCP04016xxxxBNN-1213.56344.59.03229.41.9472.2575/8-181.6413.87 + .331.76 + .006HYCP04516xxxxBNN-1713.85351.99.31236.41.9472.3585/8-181.6414.31 + .351.96 + .006HYCP05519xxxxBNN-2215.81401.610.22259.62.2552.9733/4-162.1537.05 + .513.20 + .009HYCP06522xxxxBNN-3017.3644111.77298.82.2553.2817/8-142.1539.48 + .634.30 + .011HYCP07525xxxxBNN-4022.31566.714.16359.73763.8971-123.28216.21 + .877.36 + .016*Overall cylinder length equals zero stroke length plus two times the desired stroke. **Overall bracket spacing equals zero stroke bracket spacing plus the desired stroke.234'