Toro 09501 Operator's Manual page 10

Tractor Hitch Requirements (Preferred)
A = 14" = End of PTO to hitch pin hole
B = 1" = Horizontal distance from hitch pin to tire
C = 15" = Height of hitch
D = 8" Top of hitch to center line of PTO
E = 4" = Auxiliary hole spacing (not required)
F = .81" diameter =Hitch pin hole (minimum)
G = .68" diameter = Auxiliary hole (not required)
To set the tractor:
1. On a test area, measure and mark off 30.5 m (100 ft).
2. Operate the tractor engine to attain 540 PTO rpm. Select a
transmission gear and operate the tractor (with or without
the aerator) over the test area. Record the time it takes to
travel 30.5 m (100 ft).
Note: If your tractor doesn't have a tachometer, measure
the PTO shaft rpm with a hand tachometer.
3. Make three passes, record the time for each pass, and calcu-
late the average time needed to travel 30.5 m (100 ft). If
the average is not within 30–38 seconds, select another
transmission gear and recheck until the average time meets
the recommended time limits.
Important: Use only established tractor settings when
operating the aerator. Never operate the aerator with
the tractor in any other gear setting.
To prepare the aerator:
Install proper timing gears in the aerator pick-off gear case. Use
the chart on the next page for gear selection.
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1
Figure 4
1. Pick-off gear case
2. Gear case fill plug
3
1
Figure 5
1. Oil level to center of shafts
2. Driver gear
3. Driven gear
4. Lynch pin
Figure 6
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4