26 I General User Manuali 5. Undo the wheel nuts and put them to one side.Remove the lock washers %om the wheel axle.i 6. Pull the rear wheel out of the dropout slits.18.3 Removing the tyre and inner tubei Unscrew the valve cap, fastening nut and the capnut (if installed) %om the valve. Remove the valveinsert %om Dunlop or Woods valves.i Allow the remaining air to escape %om the innertube.i Place the tyre lever on the inner edge of the tyreopposite the valve.i Lever the tyre sidewall over the rim flange.i Push the second tyre lever between the rim andtyre approx. 10 cm away %om the first one.i Continue levering the tyre off the rim until the tyrehas detached round the entire circumference.i Take the inner tube out of the tyre.18.4 Mending the inner tubei Pump up the inner tube.i Put the inner tube in a container filled with waterto locate the puncture.i Push the inner tube below the surface of the water.Air bubbles will be visible at the point where theinner tube is torn or perforated.i If you start losing air %om the tyre on the road andcannot find the hole, simply inflate the inner tubehard. The hole will then get bigger as the air willescape with greater force and you will be able tohear more easily where it is coming %om.i Allow the inner tube to dry.i Care"lly roughen the inner tube in the area aroundthe puncture using the sandpaper.i Coat this area with rubber solution.i Wait for several minutes until the rubber solutionis touch dry.i Press the rubber patch firmly onto the damagedarea.i Leave the rubber patch to dry for several minutes.i 2. Pull the outer casing out %om the outer casingholder of the cassette joint, and then remove theinner cable %om the slit in the bracket.CJ-8S20JAPANBracketOuter casing holderSlit121 Pull out %om outer casing holder2 Remove %om the sliti 3. Remove the inner cable fixing bolt unit %om thecassette joint pulley.CJ-8S20JAPANLOCKInner cable fixing bolt unitCassette joint pulleyIf it is difficult to pull the outer casing out %om theouter casing holder of the cassette joint, insert a2 mm Allen key or # 14 spoke into the hole in thecassette joint pulley, and then turn the pulley toloosen the inner cable. Then remove the inner ca-ble fixing bolt unit %om the pulley first, and afterthis remove the outer casing %om the outer casingholder.CJ-8S20JAPANLOCKTurn thepulley Pulley hole2 mm Allen keyor # 14 spokeRemove the innercable fixing bolt unit Pull out %omthe outer casingholder12 3i 4. Undo the screw of the brake arm and remove it.