g010840
Figure 40
1.
Aerator hitch pin
7.
Tractor link pin
2.
Hydraulic top link
8.
Clevis and lynch pin
3.
Rotational block
9.
2-1/2 foot hydraulic hose
4.
Connecting link
10.
3-1/2 foot hydraulic hose
5.
3 inch extension block
11.
Hose quick couplings
6.
5 inch extension block
12.
Tractor hydraulic ports
Adjusting the Head Return
Springs
You can adjust the head return springs to increase or
decrease the tension. Moving the spring toward the
front of the aerator increases the spring tension, thus
increasing the distance between the spring mounting
posts.
1.
Disengage the PTO and engage the parking
brake.
2.
Shut off the engine and remove the key.
3.
Release the spring tension to the linkage arm.
4.
Remove the nut securing the spring mounting
post bolt to the linkage arm (
or
g024284
Figure 41
SR72
1.
Spring mounting post
3.
Spring
2.
Bolt
g024285
Figure 42
SR54, SR54-S, SR70 and SR70-S
1.
Spring mounting post
3.
Spring
2.
Bolt
5.
Remove the mounting post bolt and the
mounting post from the linkage arm and reinsert
them into the another adjustment hole (
or
6.
Install the nut securing the spring mounting post
bolt to the linkage arm.
7.
Connect the spring tension to the linkage arm.
28