Toro LT3340 Operator's Manual page 62

Problem
A cutting unit fails to lift out of work.
The cutting units do not follow the contours
of the ground.
The cutting units fail to start up when
lowered into work.
The reels rotate in the wrong direction.
Possible Cause
1. There is a lift cylinder seal failure.
2. The pressure relief valve is jammed
open or wrongly set.
3. There is a malfunctioning control valve.
4. There is mechanical blockage.
1. The hose routing or the orientation of
the hydraulic fittings is incorrect.
2. The pivot points are too tight.
3. The cutting unit operating in the 'hold'
position.
4. The weight transfer is set too high.
1. The seat sensor switch is
malfunctioning.
2. The hydraulic-fluid level is low.
3. A driveshaft is sheared.
4. The pressure relief valve is jammed
open or wrongly set.
5. A cutting unit is jammed.
6. A reel is tight on the bedknife.
7. A cutting unit control valve is in the
'off' position, caused by malfunctioning
control valve.
8. A cutting unit control valve is in the 'off'
position, caused by an electrical fault.
9. The lift arm proximity switch is
incorrectly set.
1. The hoses are connected wrongly.
2. The cutting unit drive switch is
connected wrongly.
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Corrective Action
1. Replace the seals.
2. Have the relief valve pressure checked.
Consult your authorized distributor.
3. Overhaul the control valve.
4. Remove the blockage.
1. Move the cutting units throughout the
extremes of movement and observe
any tightness in the hoses. Correctly
route the hoses and orientate the
fittings as necessary.
2. Release and grease the pivot point as
necessary.
3. Move the position control switch to
'down / float' position.
4. Reduce the weight transfer.
1. Check the mechanical and electrical
operation of the switch.
2. Fill the hydraulic-fluid reservoir to the
correct level.
3. Check the motor and reel driveshafts
and replace them if necessary.
4. Have the relief valve pressure checked.
Consult your authorized dealer.
5. Clear any jams as necessary.
6. Adjust the setting.
7. Overhaul the control valve.
8. Have the electrical system checked for
an electrical fault.
9. Check and adjust the proximity switch.
1. Check the hydraulic circuit and connect
the hoses correctly.
2. Check the electrical connections of the
switch.