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Manual de usuario MTD, modelo 242-675A

Fabricar: MTD
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Slip elastic opening of bag over air duct assembly. See figure 7. X BAG (M) FIGURE 7. HAIR PIN COTTER (B) \ CLUTCH GRIP ASSEMBLY (A) CLEVIS PIN (C) NOTE Steps 6, 7 and 8 for self-propelled units only. 6. Assemble the clutch grip (A) to the left hand side of upper handle. Secure in place with clevis, pin (C) and hair pin cotter (B). See figure 8. Head of clevis pin should be to the outside of handle. FIGURE 8. LOCK NUT (E) EXTENSION SPRING (D) 7. Slide the extension spring (D) onto clutch rod (Q) as shown in figure 9. Thread lock nut (E) onto clutch rod approximately 2 1/2 inches. CLUTCH ROD (Q) FIGURE 9. 6 FIGURE 10. Hook top (hooked end) of clutch rod into clutch grip. Hook spring into clutch bracket assembly. See figure 10. Spring should not have any slack. Adjust nut so that when the clutch grip is all the way up, there is no slack in the spring. Engine must be stopped (off) spark plug wire disconnected. and FIGURE 11. ASSEMBLY INSTRUCTIONS To Convert from a Vacuum to a Leaf Blower. 1. Remove the bag. 2. Remove the air duct assembly by removing two hand knobs and belleville washers. 3. Remove the nozzle by removing one hand knob and belleville washer. 4. Remove the hand knob and belleville washer holding the housing to engine brace. See figure 11. V FIGURE 12. 5. Lift up on the housing and rotate it 90° clockwise. Chute opening should be to the right hand side when viewed from the front of unit. See figure 12. 6. Place the impeller guard (S) into flanges on front of housing. Line up hole in screen with hole on housing. Secure with one hand knob, belleville washer and heavy flat washer (H). See figure 12. 7 L-fVM.r >.\.\SH[ K * HAND KNOB Êfc, \ DIRECTIONAL DISCHARGE ASSEMBLY (R) 7. Place the directional discharge assembly (R) over chute opening. Secure with two hand knobs and bellevilie washers. See figure 13. FIGURE 13. OPERATION PRE-START PREPARATIONS Service engine with gas and oil. See engine manual packed with vacuum for complete instructions for care and maintenance of engine. READ DIRECTIONS CAREFULLY. TO START ENGINE After the engine has been properly fueled and oiled (refer to engine operating and maintenance instructions), start engine following the instructions below. 1. Move throttle control lever on engine to START position. 2. Crank engine. Pull recoil with quick firm pull. Do not pull out so far the rope stops with a jerk as this will cause rope failure. Do not allow rope and handle to snap back into place. 3. After two or three full firm pulls on recoil (or as soon as engine fires), move speed control to run position. 4. Self-Propelled Units Only - To engage the drive mechanism, squeeze the clutch grip against the upper handle. Release the clutch grip to stop the forward motion. TO STOP ENGINE 1. To stop engine, move throttle control lever to STOP position. 2. Disconnect spark plug wire and ground to prevent accidental starting while equipment is unattended. Operate a new engine at intermediate speeds and light load for the first few hours as you would a new automotive engine. IMPORTANT The vacuum bag has an air escape located on the upper right hand side. The air escape should be opened when the vacuum is in use. See figure 14. AIR ESCAPE OPENED LARGE ZIPPER CLOSED FIGURE 14. 8 ADJUSTMENTS A CAUTION Do not at any time make any adjustment to the unit without first stopping engine and disconnecting spark plug wire. HEIGHT ADJUSTMENT To adjust the height of the nozzle, stand on the right hand side of vacuum and move the index handle towards the engine. Move handle towards rear of unit to lower height. Move the handle forward to raise the height. See figure 15. Gear Box (Self-Propelled Units Only) - The gear box lubricated with 2 ounces of High Temp. (450° F.) grease. Order part number 737-0120. Periodically check lubricant level by removing the two self-tapping screws on the gear box cover and lifting off the cover. Do not change grease; simply add if necessary. MAINTENANCE I \ warnTng { Disconnect spark plug wire and ground it against the engine before performing any repairs or maintenance. FIGURE 15. CARBURETOR ADJUSTMENT If carburetor needs adjustment to start or for operation, see "Carburetor Adjustment" section of engine manual. CLUTCH ROD ADJUSTMENT (Self-Propelled Units Only) To adjust the clutch rod, refer to step number 8 under assembly instructions. BELT REPLACEMENT (Self-Propelled Units Only) 1. Remove the nozzle or impeller guard from front of air duct housing. 2. Remove hex bolt and lock washer from center of impeller. See figure 16. A 9/16" socket wrench with extension is needed. IMPELLHK ASSEMbLY FIGURE 16. ) LUBRICATION Wheels - Rear wheels are provided with oil lite bearings. Place a few drops of SAE 30 oil on each bearing once a season. 3. Remove hand knob and belleville washer from top of housing. 4. Remove two self-tapping screws which hold the belt guard. See figure 17. A 3/8" wrench is...