Maintenance
13
Replacing the PTO Drive Belt
Squealing when the belt is rotating, blades slipping
when cutting grass, frayed belt edges, burn marks and
cracks are signs of a worn drive belt. Replace the
PTO drive belt if any of these conditions are evident.
1.
Stop the engine, set the parking brake, remove
the key and disconnect the spark plug wire(s)
from the spark plug(s).
2.
Remove the clutch retaining strap and unplug
clutch terminal from wire harness (Fig. 16).
3.
Place PTO drive belt over clutch, around rear
idler pulleys and onto mower top center pulley.
Note:
Check that belt has only 1/4 twist
between each pulley and idler.
4.
Install clutch retaining strap and plug clutch
terminal into main wire harness (Fig. 16).
m–3688
1
2
3
4
m–3748
Figure 16
1.
Clutch
2.
Clutch retaining strap
3.
Plug
4.
PTO belt
5.
Check belt tension. The center bolt of spring
loaded idler must be
between the two alignment
holes in left support plate (Fig 17).
m–3744
1
2
Figure 17
1.
Center bolt, spring loaded
idler
2.
Alignment hole
6.
If adjustment is required, loosen the fixed idler
on
right support plate and move up or down in
adjustment slot. To relieve belt tension lift up on
spring loaded idler.
m–3746
1
2
Figure 18
1.
Fixed Idler
2.
Adjustment slot
7.
Check belt tension again. The center bolt of
spring
loaded idler must be
between the two
alignment holes in left support plate (Fig 17).
Adjust,
if necessary, and tighten all hardware
securely.
