Model Serial Number Ranges Description LE Deluxe

Transcription

1 Service Campaign Ariens Company 655 W. Ryan St. Brillion, WI Product Family: Sno-Thro 30LE Deluxe Subject: Attachment Belt Engagement Dealer Action: Replace Attachment Belts Before Sale Model Serial Number Ranges Description LE Deluxe Ariens Company has learned that under certain conditions the attachment belts used on the Sno-Thro model in the serial number range listed above may intermittently grab the engine sheave when the clutch is released. This grabbing will cause the auger and impeller to engage briefly. The affected units were placed under a stop sales order per Product Notice N-2019 released on December 30, Replacing the attachment drive belts p/n originally used on these units with p/n HA raw edge belts eliminates the potential for the belts to grab. Before putting any of the above-listed units into service, inspect the unit. If the unit has belt p/n (the part number will be printed on the belt), order and install HA raw edge belt set p/n Each set contains two belts; order one set per unit. Discard the p/n belts removed from the units. After the belts have been replaced, the units can be removed from the stop sales list and retailed to customers. The belt replacement procedure starts on page 2. NOTE: models that are shipped from Ariens Company on or after January 15, 2010 already have the p/n HA raw edge belts installed and will not need to be reworked. Dealers should file a warranty claim for each belt replacement, using flat rate code Note each unit s model and serial number. Belt replacement will be reimbursed for 0.50 hours at the dealer s standard shop labor rate. Please direct any questions about the inspection or warranty reimbursement policies to Ariens Technical Service, Page 1 of 5

2 ATTACHMENT DRIVE BELT REPLACEMENT NOTE: The instructions presented below assume a unit has been set up for sales display purposes. When replacing belts on boxed units, start the replacement at step 4 in Remove Old Attachment Drive Belts after removing the unit from its box and setting the handlebars in the operation position. Remove Old Attachment Drive Belts 1. Shut off engine, remove key, disconnect spark plug wire and allow unit to cool completely. 2. Rotate discharge chute all the way to the left (as viewed from the operator s position). 3. Remove spring pin from chute crank and separate crank from discharge chute gearbox. 4. Remove belt cover. 5. Remove belt finger (Figure 2). 6. Remove attachment drive belts from engine sheave (it may be necessary to turn engine sheave using recoil starter handle). IMPORTANT: To avoid bending bottom cover when tipping unit apart, support handlebars firmly or tip unit up on housing and remove bottom cover by removing six cap screws before separating unit. 7. Support Sno-Thro frame and housing. CAUTION: Always support Sno-Thro frame and blower housing when loosening the cap screws holding them together. Never loosen cap screws while unit is in service position. 8. Remove cap screws securing housing to frame (two on each side). Tip housing and frame apart on pivot pin (Figure 1). 9. Remove attachment drive belts from attachment pulley (hold brake away from belt) Belt Cover 2. Chute Gear Cover 3. Discharge Chute Rod 4. Pivot Pin 5. Cap Screws Figure 1 Page 2 of 5

3 Install New Attachment Drive Belts 1. Place new p/n attachment belts onto attachment pulley. NOTE: Holding down the attachment clutch lever will make it easier to reconnect the housing and frame. 2. Tip housing and frame back together and secure with cap screws. 3. Place belts onto engine sheave. 4. Reposition and secure belt finger. IMPORTANT: With clutch lever engaged, belt finger on the side opposite the belt idler should be less than 1/8 in. (3 mm) from belt, but not touching the belt. Adjust belt finger as necessary. 5. Check attachment clutch adjustment NOTE: Check belt finger clearance on this side. 1. Traction Drive Belt 2. Engine Sheave 3. Attachment Drive Belts 4. Belt Finger 5. Attachment Belt Idler 6. Attachment Idler Adjustment Nut 7. Traction Belt Idler Figure 2 Page 3 of 5

4 Check Attachment Clutch Adjustment 1. Loosen jam nut on cable adjustment barrel, and then turn the adjustment barrel up or down to remove all cable slack without tensioning the clutch arm (Figure 3). 2. 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 (Figure 3). If spring extension is 9/16 in. (14.3 mm), no more adjustment is necessary. Go to step 5. If spring extension is not 9/16 in. (14.3 mm), adjust the attachment belt idler to get proper spring extension. Go to step 3 below. Adjustment Barrel Check slack here. Jam Nut Clutch Arm 9/16 in. (14.3 mm) spring extension. Measure this length with the clutch disengaged. Measure this length with the clutch engaged. Figure 3 Page 4 of 5

5 3. Loosen idler adjustment nut, and move idler closer to the attachment belts to increase spring extension or farther away from the belts to decrease spring extension. Moving the idler about 1/16 will change spring extension about 1/16. NOTE: Check belt finger clearance on this side. OS7194 Loosen idler nut and move idler closer to the belt. Then recheck spring extension on the cable. Figure 4 4. When spring extension is within specified range, recheck belt finger clearance. With clutch lever engaged, the belt finger located opposite the belt idler must be less than 1/8 in. (3 mm) from belts, but not touching the belts (Figure 4). 5. Replace belt cover. NOTE: If units are being returned to warehouse inventory, carefully refold the handlebars and repackage the unit. Make sure all literature packs and packaging are returned to the box before stapling the box closed. Skip to step Reconnect chute crank and secure with spring clip. 7. File a warranty claim using flat rate code Page 5 of 5