Drive Belt - MTD 3AA & 3CA Operator's Manual

Figure 11
Engine
Pulley
Drive
Belt
Figure 12
Flange Lock Nut
Spring
Drive Pulley
Figure 13
NOTE: There are two belts on this snow thrower: an
auger belt and drive belt. It is recommended that both
belts be replaced at the same time.
1. Remove the spark plug wire from spark plug and ground
2. Drain gasoline from the gas tank or place a piece
WARNING: Perform belt maintenance outdoors as
some gas may possibly leak from the carburetor even
Plastic Tab
though you placed a sheet of plastic underneath the
gas cap to prevent the gas cap from leaking.
3. Remove the self-tapping screw shown in Figure
1. Slip the front auger belt off of the engine pulley pushing
Auger Belt
2. Squeeze the auger control handle to release the
3. Replace with new belt after replacing the drive belt.
Auger
NOTE: Replace the drive belt before reassembling the
Pulley
new auger belt.
1. Tip the snow thrower up and forward so that it rests
IMPORTANT: Remember, gas could leak from the
Idler
carburator at this point, the gas cap should have been
Bracket
covered with plastic as previously instructed.
2. Remove the spring that connects the transmission to
NOTE: It may be easier to first remove the flange lock
nut, then use needle-nosed pliers to firmly grip spring
and remove from bolt.
3. Pivot the transmission forward to release pressure on
4. Remove the drive belt from around the engine pulley,
5. Place the new drive belt into the groove on the
6. Tilt the transmission forward and position the drive
7. Reconnect the spring to the bolt on the engine frame and

Drive Belt

8. Install new auger belt.
9. Reassemble the belt cover on the snow thrower.
13
Replacing Belts
it against the engine to prevent accidental starting.
of plastic sheet underneath the gas cap to prevent
gasoline leakage.
11, and press the plastic tabs to release the belt
cover. Pull the belt cover up and out from around the
engine and chute assembly. Set it aside and save.
Auger Belt
it forward and rolling in off of the pulley. See Figure 12.
auger brake, which is the tab that holds the belt onto
the auger pulley. Remove the belt.
Drive Belt
on the auger housing.
a bolt on the engine frame. See Figure 13.
the drive belt. Remove belt from transmission pulley.
and away from the unit.
engine pulley. See Figure 12.
belt onto the transmission pulley.
secure the transmission. Reinstall the flange lock nut.
6
Maintenance
& Service
WARNING
Before servicing,
repairing, or inspecting,
disengage all controls
and stop engine. Wait
until all moving parts have
come to a complete stop.
Disconnect spark plug
wire and ground it against
the engine to prevent
unintended starting.
Always wear safety
glasses during operation
or while performing any
adjustments or repairs.