Craftsman 247.88045 - Manual (Page 19)

1
SERVICE AND MAINTENANCE
NOTE: The pulley adapter may slide off the auger input shaft when
removing the pulley. Use extra caution to ensure the adapter does fall
and/or get damaged when removing the pulley.
8. Place the new auger belt in the V-groove of the auger pulley and
place the pulley w/belt inside the belt keepers.
9. Turn the pulley as necessary to align its three slots approximately
with the posts of the pulley adapter, then move the brake bracket
assembly away from the input shaft. While aligning the pulley
slots and adapter posts, push the auger pulley fully onto the
adapter. Refer to Figure 28.
NOTE: If the pulley adapter was removed with the pulley, align the
splines of the pulley adapter and auger input shaft, and push the pulley
and adapter onto the input shaft. Refer to Figure 28.
10. Slide the washer onto the hex screw removed earlier and apply
Loctite 262 to the threads of the hex screw.
11. Insert the hex screw through the pulley assembly and into the
threads of the input shaft. Torque the hex screw to 250-325 in.
/lbs. to secure the auger pulley assembly on the input shaft.
12. If also replacing the drive belt, proceed to the “Drive Belt”
instruction. If not, reposition the transmission frame back onto
the auger housing. Install the drive belt on the engine pulley,
re-connect the auger cable “Z” fitting and auger idler rod ferrule
to the brake bracket. Reposition and secure the engine pulley
belt guard, and re-install the belt cover.
NOTE: Make sure to remove the piece of wood blocking the impeller.
Check the auger drive belt adjustment. With the auger clutch lever
in the disengaged position, the top surface of the new belt should be
even with the outside diameter of the pulley.
To adjust, disconnect ferrule from brake bracket assembly. Thread
ferrule in (towards idler) to increase tension on belt, or out to decrease
belt tension.
NOTE: The brake puck must always be firmly seated in the pulley
groove when auger control is disengaged.
IMPORTANT: Repeat the “Auger Drive Control Test” from the As-
sembly section before operating snow thrower.
Drive belt replacement
If not already done, remove the auger drive belt from the front pulley of
the engine double pulley. Refer to “Auger Belt Replacement” instruc-
tions in the previous sub-section.
1. a. Pull the idler pulley away from the backside of the drive belt to
relieve the tension. See Figure 29.
b. Slip the drive belt off the idler pulley. Carefully release the idler
pulley.
2. Roll the drive belt off the lower drive pulley.
3. Remove the belt from the engine pulley.
4. Install the new belt on the pulleys in the reverse order and
re-tension with the idler pulley.
5. Reassemble by performing the previous steps in the opposite
order and manner of removal.
Figure 27
Figure 28
A
C
B
Pulley Slot
Adapter Post
Figure 29
2
3
1a
1b