Craftsman 24838 Operation Manual - Page 29

CAUTION: Beforeservicinogradjusting thesnowthrowesr hutofftheenginer,emove thesparkplugwire(s)s,ettheparkingbrake andr_movtehekeyfromthetractoirgnition. REPLACING AUGER BELT • Disengage the tractor's attachment clutch. • Lower the snow thrower to the ground. • Remove the attachment pin • Lock the snow thrower's lift handle in the down position to decrease belt tension • Release the spring tension from the auger belt idler arm on the bottom of the clutchddler assembly. • Remove the auger drive belt from the clutch/idler assembly and from the spgal auger housing • Install new belt over top of large auger drive pulley and under the two side idler pulleys Twist the belt 1/4 turn to seat the "V" of the belt in the groove of each idler pulley. Refer to figure 55 on page 23 • Assemble the belt onto the clutch/idler assembly SKID SHOE ADJUSTMENT * The skid shoes are mounted on each side of the spiral auger housing. They regulate the distance the scraper plate is raised above the plowing surface. When removing snow from a gravel driveway or and uneven surface, it is advisable to keep the scraper plate as high above the surface as possible to prevent possible damage to the spiral auger On blacktop or concrete surface, keep the scraper plate as close to the surface as possible , Raise the snow thrower off the ground and place a block under each end of the scraper plate Loosen the six hex nuts securing the skid shoes to the housing Adjust the skid shoes up or down and retighten the nuts securely. Adjust both skid shoes to the same height to keep the housing and the scraper plate level See figure 64 LIFT RELEASE CABLE ADJUSTMENT • If the lift rod does not lock the snow thrower securely in the transport position, loosen the upper hex nut on the lift bracket a few turns and tighten the lower hex nut. Refer to figure 48 on page 21 If the lift rod fails to unlock completely to lower the snow thrower, loosen the lower hex nut on the lift bracket a few turns and tighten the upper hex nut Refer to figure 48 on page 21 CLUTCH DISENGAGEMENT ADJUSTMENT (For tractors with engagement rod clutches only. Not for electric clutches or cable clutches) if the spiral auger on the snow thrower does not stop when the attachment clutch lever on the tractor is disengaged, then adjustment is necessary. Proceed as foNows. Refer back to figure 33 on page 16. • Place the attachment clutch lever in the disengaged position. • Remove the hairpin cotter from the engagement rod trunnion and lift the trunnion out of the hole in the idler arm Screw the trunnion a few turns towards the front end of the rod Replace the trunnion into the hole in the idler arm and secure it with the hairpin cotter Check the operation of the snow thrower If the spiral augers still do not stop, repeat the above steps until the augers stop when the attachment dutch lever is placed in the disengaged position SPIRAL AUGERS , The spiral augers are secured to the auger shaft with two shear bolts and nylock nuts If you hit a foreign object or if ice jams the augers, the snow thrower is designed so that the bolts will shear • If the augers wilt not turn, check to see if the shear bolts have sheared See figure 65 Two replacement shear bolts and nyiock nuts have been provided with the snow thrower. For future use order part number 710-0890A shear bolt and number 47810 nylock nut GEAR HOUSING FIGURE 64 SHEAR BOLT AND HEX LOCK NUT FIGURE 65 29 SCRAPER PLATE SKID SHOE