valutazioni - 3, GPA: 4 ( )

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2. Tip housing and frame back together and secure with hex bolts. 3. Place belt onto engine sheave. 4. Replace belt finger. IMPORTANT: With the clutch lever engaged, the belt finger located opposite the belt idler must be less than 1/8 in. (3,2 mm) from the belt, but not touching the belt, or belt grabbing may occur causing impeller to rotate while the attachment clutch is disengaged (Figure 21). 5. Adjust clutch per Attachment Clutch/Brake Adjustment on page 23. 6. Replace chute crank and secure with spring pin. 7. Run in the attachment belt. See Run-in Attachment Belt on page 10. 8. Replace belt cover. CAUTION: Always support the unit frame and housing when loosening the cap screws holding them together. Never loosen cap screws while unit is in service position. Figure 19 OS8062 1 2 3 4 1. Pinion Gear 2. Belt Cover 3. Spring Pin 4. Chute Crank WARNING: AVOID INJURY. Auger must stop within 5 seconds when attachment lever is released or serious injury or unit damage may result. Figure 20 OS8160 5 3 2 1 6 7 4 1. Traction Belt Idler 2. Traction Drive Belt 3. Engine Sheave 4. Belt Finger 5. Attachment Drive Belt 6. Attachment Pulley 7. Attachment Idler Nut 8. Attachment Belt Idler 8 GB - 22 TRACTION DRIVE BELT REPLACEMENT NOTE: Housing and frame must be tipped apart and attachment drive belt removed from engine sheave in order to change traction drive belt (Figures 19, 20, 21, 22 and 23) 1. Remove attachment drive belt (See Remove Attachment Drive Belt on page 20). NOTE: To gain belt clearance, remove swing gate spacer (Figure 22) so drive plate can be slid over until finger is out of frame and drive plate can swing past stop hole in frame. See Figure 23. 2. Pull idler away from traction drive belt and remove belt from idler, crankshaft pulley and driven pulley (it may be necessary to turn crankshaft pulley using recoil starter handle). 3. Replace traction drive belt. 4. Swing drive plate toward friction disc to slide finger into stop hole in frame. Reinstall swing gate spacer. NOTE: Make sure drive plate spring remains connected to the frame and drive plate. 5. Replace attachment drive belt (See Replace Attachment Drive Belt on page 21). CAUTION: Always support the frame and blower housing when loosening the cap screws holding them together. Never loosen cap screws while unit is in service position. Figure 21 1. Belt Finger 2. Belt 1 2 OS8165 1/8 in. (3.2 mm) (Maximum) Figure 22 OS8170 1. Swing Gate Spacer 2. Swing Gate Finger 3. Drive Plate 3 1 2 Figure 23 OS8068 1. Swing Gate 2. Swing Gate Finger 3. Drive Plate 3 1 2 GB - 23 ATTACHMENT CLUTCH/BRAKE ADJUSTMENT Remove Attachment Cable Slack 1. Remove the belt cover. 2. Loosen jam nut on cable adjustment barrel, and then turn the adjustment barrel down to shorten cable and remove all cable slack. See Figure 24. 3. With the attachment clutch disengaged, check that the attachment idler arm lightly touches the frame. See Figure 25. 4. Tighten jam nut on cable adjustment barrel. Check Attachment Idler Arm Roller Clearance 1. Place the unit into the service position. Remove the bottom cover. 2. With the clutch lever engaged, check the clearance between the frame and plastic roller on the lower end of the attachment idler arm. See Figure 26. • If roller is 1/2 – 7/8 in. (12.7 – 22.2 mm) from frame, go to Adjust the Attachment Clutch Cable Spring Extension on page 24. • If roller is less than 1/2 in. (12.7 mm) from frame, loosen idler adjustment nut and move idler closer to the belt. Tighten adjustment nut and recheck the roller clearance. • If roller is more than 7/8 in. (22.2 mm) from frame, loosen idler adjustment nut and move idler away from the belt. Tighten adjustment nut and recheck roller clearance. WARNING: IMPROPER ADJUSTMENT could result in unexpected movement of auger and impeller causing death or serious injury. AUGER / IMPELLER MUST STOP within 5 seconds when attachment clutch/impeller brake lever is released. WARNING: Adjustment procedure requires the engine to be run with the belt cover off. AVOID INJURY. Read and understand the entire Safety section before proceeding. Figure 24 1. Attachment Clutch Cable 2. Cable Adjustment Barrel 3. Jam Nut 2 3 OS8260 1 Figure 25 OS7188 With the attachment clutch disengaged, check the attachment idler arm position here. The attachment idler arm should lightly touch the frame. Figure 26 OS8080 Roller should be 1/2 – 7/8 in. (12.7 – 22.2 mm) from the frame when the attachment clutch is engaged. Figure 26 OS8080 Roller should be 1/2 – 7/8 in. (12.7 – 22.2 mm) from the frame when the attachment clutch is engaged. 1. Check the attachment clutch cable spring extension. Measure the length of the attachment clutch cable spring with the clutch lever disengaged. Then measure the attachment clutch spring with the clutch lever engaged. See Figure 27. The spring should be 1/2 – 9/16 in. (12.7 – 14.3 mm) longer when the clutch lever is engaged. • If spring extension is within the specified range, go to Check Attachment Brake (Fig...

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