Agri-Fab LST 42A, Руководство пользователя

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19
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.
FIGURE 35
FIGURE 34
REPLACING AUGER BELT
1. Disengage the tractor's attachment clutch.
2. Lower the snow thrower to the ground.
3. Remove the attachment pin.
4. Lock the snow thrower's lift handle in the down position
to decrease belt tension.
5. Release the spring tension from the auger belt idler arm
on the bottom of the clutch/idler assembly.
6. Remove the auger drive belt from the clutch/idler
assembly and from the spiral auger housing.
7. 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 fi gure 30 on page 15.
8. Assemble the belt onto the clutch/idler assembly. Refer
to fi gures 31 and 32 on pages 15 and 16.
SKID SHOE ADJUSTMENT
1. 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.
2. 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 fi gure 34.
LIFT RELEASE CABLE ADJUSTMENT
1. 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 fi gure 24 on page 13.
2. 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 fi gure
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 fi gure 13 on page 9.
1. Place the attachment clutch lever in the disengaged
position.
2. Remove the hairpin cotter from the engagement rod
trunnion and lift the trunnion out of the hole in the idler
arm.
3. Screw the trunnion a few turns towards the front end of
the rod.
4. 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
1. 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.
2. If the augers will not turn, check to see if the shear bolts
have sheared. See fi gure 35. Two replacement shear
bolts and hex lock nuts have been provided with the snow
thrower. For future use order part number 710-0890A
shear bolt and number 43064 hex lock nut.