Adjusting The Tine Drive Chain; Adjusting The Return-To-Up Spring - Toro 39514 Operator's Manual

24in stand-on aerator
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7.
Secure the cover panel to the chassis with the
2 thumbscrews and 2 washers
you removed in step 3, and torque the bolts to
37 to 45 N∙m (27 to 33 in-lb)
Adjusting the Tine Drive
Chain
1.
Shut off the engine, engage the parking brake,
wait for all moving parts to stop, and remove
the key.
2.
Lift the rear of the machine and support using
jack stands or equivalent support.
3.
Check the chains on each side of the idler
sprocket, at both sides of the machine, for
proper tension.).
The chains should move up and down 6 to 12
mm (1/4 to 1/2 inch).
4.
To adjust the chain tension, loosen the idler
bolt and threaded spacer, and push up on the
sprocket to tighten the chain
Important:
Do not overtighten the chain.
Significant chain wear can occur and will
shorten the life of an overtightened chain.
Figure 60
1. Idler bolt
2. Idler sprocket
5.
Check the chain tension and tighten the idler
bolt.
(Figure
59) that
(Figure
60).
g268810
3. Threaded spacer
Adjusting the Return-to-Up
Spring
WARNING
Springs have stored energy. Overtightening
the springs may cause the springs to fail
which can cause serious injury or death and
damage to the machine and property.
Make sure springs are properly adjusted
and/or replaced as specified in the Operator's
manual.
Check the gap between the spring bracket and the
end of the spring as shown in
should measure 35 mm (1.38 inch). The adjustment
is made by turning the bolt at the front of each spring
(clockwise will shorten the gap, counter-clockwise will
lengthen the gap).
1. 35 mm (1.38 inch)
Important:
The springs must be replaced it the
gap is less than 29 mm (1.13 inches).
Always replace both return-to-up springs. This
prevents uneven loading and possible damage to
the machine.
49
Figure
61. The gap
Figure 61
g233568

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