Adjusting The Self-Propel Drive Belt Tension; Adjusting The Seed Gate Closed Position - Exmark SD270SB20 Operator's Manual

Slicer seeder
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Figure 14
1. Top/Bottom adjustment
nuts
2. Cable
3. Jam nut
• If the bail does not contact the handle, then
proceed to step 4.
4. Remove the hairpin, rotate the turnbuckle
clockwise one more full turn.
5. Reinstall the hairpin and rotate the jam nut against
the turnbuckle.
6. Start the engine and test the adjustment, repeating
this procedure as necessary.
Adjusting the Self-Propel
Drive Belt Tension
If the self-propel drive belt squeals during operation
(i.e., when moved from neutral to forward or reverse),
tighten the belt as follows:
1. Stop engine, wait for all moving parts to stop, and
remove spark plug wire.
2. Raise the cutting blades to the highest position.
3. Remove and retain the four bolts, lock washers,
and two spacers securing the belt cover to the left
side of the machine and remove the cover.
4. Check the tension of the transmission drive belt.
It should not flex more than a 1/4 inch (6 mm)
with moderate finger pressure applied to the span
just above the machine frame.
4. Turnbuckle
5. Self-propel drive bail
5. To tighten the belt, loosen the four mounting
nuts/bolts securing the pulley carriage to the
frame and move the carriage to the left, tightening
the belt, then secure the four mounting nuts and
bolts.
1. Nut
2. Pulley carriage
6. Reinstall the belt cover using the hardware
retained in step 3.
Adjusting the Seed Gate
Closed Position
If the seed gate is partially open when the seeder
control lever is in the Off position, complete the
following:
1. Stop engine, wait for all moving parts to stop, and
remove spark plug wire.
27
Maintenance
g016901
Figure 15
Figure 16
3. Machine frame
4. Bolt

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