Trouble Shooting - Toro 09930 Operator's Manual

Trouble Shooting

Problem
Springs are breaking or not pulling back the
head to normal position.
Holes are elongated or picking.
Tines are hitting the ground with an erratic
pattern.
PTO clutch slips excessively.
Turf is pulling up with coring tines.
The soil is too hard for full penetration.
Coring tines are breaking.
Tines will not stay in the head.
Tines pull the soil up when the machine is
raised.
The machine will not turn.
The tractor has difficulty lifting the aerator.
The hydraulic top link cylinder is spongy. (It
"gives" and moves in and out a short span
when force is applied.
Machine is noisy or knocking.
The hydraulic top link cylinder can not be fully
retracted (PTO shaft jams).
The tractor is difficult to steer when in transport. •Add weight to the front of the tractor.
Camber bracket damage
Slow the PTO speed of the tractor. The longer and heavier the tines, the greater the
centrifugal force on the head. Check for crossed or broken spring wires.
Adjust the angle of the tine or change the tractor ground speed. Make sure that the
aerator can be lowered at least 2 inches below flat ground level to allow for undulation.
• Check for crossed or broken spring wires.
• Slow the PTO speed of the tractor.
Adjust tines to a shallower depth. Review clutch adjustment procedure. Replace
PTO clutches.
Shallow-rooted turf may require solid tines the first time.
Aerate at a depth that the machine can achieve, water overnight, and then increase
the depth. Repeat if necessary until soil can be aerated at desired depth.
You are trying to get too much depth for the soil condition. See above and aerate to
a shallower depth.
Tighten the tine holder bolts; do not use jam nuts or impact wrench. If the bolt will not
hold the tine, replace it.
Raise the machine part of the way out of the soil before disengaging the PTO.
Make sure the PTO, drive shaft and drive chains are working properly.
Move tractor lift arms 3" (76.19 mm) to 4" (101.6 mm) closer to the aerator. Make
sure the tractor has the capacity to lift the aerator.
Air is in the cylinder or lines and must be bled out.
•Crank pin nut has vibrated loose.
•Chains are too loose.
•Bolts on the bottom of the frame at the rear of the main arm have vibrated loose.
•Check oil level in gearbox.
The PTO shaft is too long for your tractor and should be cut to the correct length.
•Check tire pressure and adjust as required.
•Do not store the aerator, on the ground, with tines installed.
•Do not run the coring head, for an extended time at high RPM, when the tines
are out of the ground.
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Solution