SPECIFICATIONS & MAINTENANCE
2-12
Toro 30” Aerator Service Manual
2
Jackshaft Drive Chain Tension Adjustment
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Lift the rear of the unit and support using jack stands
or equivalent support.
3. Check the chains on both sides of the unit for proper
tension. The chains should be able to move up and
down 6-12mm (1/4”-1/2”).
4. Loosen the nuts on the three hydro mounting bolts
and the two on the adjustment bolt as shown in
Figure 003. The nuts on the hydro mounting bolts
must be loosened on both sides of the unit (Fig.
003).
5. Turn the adjustment bolt to move transmission
adjustment plates and hydros. Tighten the nuts on
both sides of the adjustment bolts when the chains
are properly tensioned.
6. Tighten hydro mounting bolts.
7. Adjust motion controls as stated in the “Motion
Control Linkage Adjustment” section of this chapter.
Fig. 003 g. 16 G020261
A. Hydro mounting bolts D. 6-12mm (1/4-1/2”)
& nuts E. Guard removed for
B. Nuts clarity
C. Adjustment bolt
A
B
C
D
E
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