Schwinn Tango Tandem Seven IPS Schwinn Owner's Manual - Page 60

Freewheel MAINTENANCE Guide Pulley Tension Pulley High gear adjustment screw Low gear adjustment screw Barrel adjuster 60 ©2010 Outer side of top gear Pulley adjustment screw Adjustment screws SIS cable adjuster 4.16 The front derailleur should also shift the chain cleanly and without hesitation between each chainring. If your bicycle is equipped with front indexing (a click between gears), then each click or stop in the shifter should equate exactly to a new gear position. When the chain has been positioned onto a new chainring, it should not rub on the front derailleur. The chain should not fall off a chainring at any time. Derailleur control cables are a critical component that must be well maintained for accurate shifting performance. Check them for any sign of rust, fraying, kinks, broken strands and any damage to the cable housing. If you find any problems, the cables may need replacing before you ride. (Fig. 4.15 - see previous page) Lubrication All the pivoting points of the front and rear derailleurs should be lubricated with light oil at least every six months. (more often in severely rainy or muddy conditions) Be sure to wipe off any excess oil to prevent attraction of dirt into the mechanisms. The shifting cables should be cleaned and re-coated with a thin layer of grease every six months, or whenever new cables are being installed. Adjustment - Rear Derailleur (Fig. 4.16, 4.17) The low limit screw determines how far the rear derailleur will travel toward the wheel of the bicycle, while the High limit screw determines how far the cage will travel toward the frame. 1. Shift the rear shifter to the largest number indicated, disconnect the rear derailleur cable from the cable anchor bolt and place the chain on the smallest sprocket. 2. Adjust the High limit screw so the chain and the smallest sprocket are lined up vertically. Remove any slack in the cable by pulling it taut, then re-connect the cable and tighten the cable anchor bolt securely. 3. Shift up through the gears making sure that each gear is achieved quietly and without hesitation. If noise occurs, use the barrel adjuster to fine-tune the cable tension. Turning the barrel adjuster clockwise will decrease cable tension and allow the derailleur cage to move farther away from the bicycle in small increments. Turning counter-clockwise will increase cable tension and bring the cage closer to the bicycle. This will micro-adjust the positioning of the derailleur cage in relation to the freewheel. Simply put; turn the barrel adjuster the direction you want the chain to go. 4.17