Craftsman 9-19905 Owners Manual - Page 11

Disassembly of the Reverse Valve Mechanism NOTICE: The Reverse Valve Assembly cannot be removed without first removing the Forward and Reverse Buttons (39) and (40). Therefore, it is important that the procedure below be followed exactly. 1. Notice the notches on either side of the partition. These notches indicate the correct location for insertion of a thinbladed screwdriver used for re- moving the Forward and Reverse Buttons. Insert the screwdriver between the partition and the Button which is fully extended. Gently pry against the Button to disengage the detent so that the Button can be removed. After the Button is removed, reach inside the Housing and rotate the Reverse Valve to extend the remaining Button. Repeat the above procedure for the remaining Button. See Figure 9. Removal of _ _°uttrWoard/revrese Figure 9 2. Insert thumb into the front of the Housing and push down on the Reverse Valve so that it can be removed through the bottom of the handle. See Figure 10. Reverse valve Figure 10 NOTICE: Do not try to remove the Reverse Valve by pushing upward. It can only be removed by pushing it downward and out of the bottom of the handle. If the Reverse Valve does not come free, tap the bottom of the handle lightly with a rubber hammer until it drops out. 3. Remove the Top Reverse Valve O-ring (36) and the Bottom Reverse Valve O-ring (37) from the Reverse Valve. ASSEMBLY General Instructions 1. Whenever grasping a tool or part in a vise, always use leather-covered vise jaws to protect the surface of the part and help prevent distortion.This is particularlytrue of threaded members and housings. NOTICE: Always use leathercovered vise jaws when clampingthe handle in a vise, Leather will conform to the shape of the handle and allow the tool to be held securely. To prevent damage to the exhaust diffuser, never clamp only the bottom of the handle. 2. Always clean every part and wipe every part with a thin film of oil before installation. 11