MTD 390 Series Operator's Manual page 16

4. The forward idler belt will not clear the belt keepers near
the engine pulley. You must remove the reverse idler
bracket to allow the belt to move off of the engine pulley.
Remove the two securing screws and move the bracket
toward the transmission pulley. Retain the screws for
reassembly. See Figure 7-5.
5. Remove the belt from the reverse idler pulley and then
from around the transmission pulley. See Figure 7-6.
6. To reassemble the new belt, follow the instructions in
reverse order. Be sure to place the wider side of the belt
away from the engine and transmission pulleys.
NOTE: Upon reassembly, make certain that the idler pulley
keeper is as shown in Figure 7-4. Take note of the notch
on the bottom of the keeper and the alignment when
reassembling with the replacement belt.
16 S 7— S
ection ervice
Screws
Figure 7-5
Engine Pulley
Figure 7-6