SERVICE AND ADJUSTMENTS
CAUTION: Before servicing or adjusting the snow thrower, shut off the engine, remove the spark plug wire(s), set the parking brake and remove the key from the tractor ignition.
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 clutch/idler assembly.
•Remove the auger drive belt from the clutch/idler assembly and from the spiral 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 30 on page 15.
Assemble the belt onto the clutch/idler assembly. Refer to figures 31 and 32 on pages 15 and 16.
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 pos- sible.
•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 37.
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 24 on page 13.
•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 24 on page 13.
CLUTCH DISENGAGEMENT ADJUSTMENT
(Only tractors with clutch engagement rods.)
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 follows. Refer back to figure 13 on page 9.
•Place the attachment clutch lever in the disen- gaged 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 clutch lever is placed in the disengaged position.
SPIRAL AUGERS
•The spiral augers are secured to the auger shaft with two shear bolts and hex lock 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 will not turn, check to see if the shear bolts have sheared. See figure 38. Two replace- ment shear bolts and hex lock nuts have been provided with the snow thrower. For future use order part number
FIGURE 37 | FIGURE 38 |
20
