Troy-Bilt 12211, 12212 Threads D, K N M, Maintenance, allowing the engine and muffler to cool

Section 5: Maintenance

WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key on elec- tric start models. Failure to follow these instructions can result in serious personal injury or property damage.

Threads

D

Figure 5-9: One or two threads on Forward Clutch Rod should show above nut.

H

F

To Check and Adjust Tension on the Reverse Drive Belt

1. Remove the belt cover (E, Figure 5-8)

after first shutting off the engine, discon-

necting the spark plug wire, removing the

ignition key on electric start models, and

allowing the engine and muffler to cool

down.

2. Have an assistant pull the Reverse

Clutch Control knob all the way out and

hold it in that position. Measure the

length of the cable wire between the end

of the threaded cable adjuster (K, Figure

5-12) and the end of the Z-fitting (L) to

which the cable wire is attached.

3. The belt tension is correct if the cable

wire length measures between 1/8" to 1/4".

If the length is less than 1/8" (and if there

is no reverse action when the tiller is

running), then make the following adjust-

ments. NOTE: If the length is more than

1/4", no adjustment is needed, as long as

the reverse action functions properly.

L

K

Figure 5-12: Measure length of cable.

K

N M

R

G

4. Release the Reverse Clutch control

knob. Unthread the inner jam nut (M,

Figure 5-13) one to two turns and pull the

Figure 5-10: Remove clevis pin from outer hole in forward adjustable link and move to inner hole in link.

P	I	J
T
S

Figure 5-11: View of belts and pulleys. Only the upper half of the transmission pulley (S) is shown.

threaded cable adjuster (K) to the left until

the inner jam nut rests against the

bracket.

5. Prevent the inner jam nut (M) from

turning and tighten the outer jam (N)

against the bracket. Prevent the outer

jam nut (N) from turning and tighten the

inner jam nut (M) against the bracket.

6. Measure the gap by repeating Step 2.

Readjust as needed by repeating Steps 4

and 5.

7. Reinstall the belt cover and secure it

with the two nuts.

Figure 5-13: Adjust jam nuts.

27