Includes PTU-2 and PTU-4 models.
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PROBLEM |
POSSIBLE CAUSE |
CHECK THIS |
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Tilt platform will not raise |
Battery may need charging |
Battery volt level |
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Is the charger putting out 12 volts? |
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Check that 12 volts is being reached at the motor and motor relay. |
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Is the charger operating properly? |
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Load is too heavy |
Verify the load weight. |
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Unit is low on oil |
Inside the tank, make sure the oil is full to the elbow in the filler pipe. |
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Tank vent may be plugged |
Look to see that the solid plug is not in place of the vent plug. |
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Suction filter may be clogged |
Remove and clean the suction filter. |
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Down valve coil may be energized |
Remove the down valve and ensure it is not being energized when the up button is pushed. Check wiring to the down valve. |
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Unit elevates but will not hold a load |
Down valve coil may be energized |
Remove the down valve and ensure it is not being energized when the up button is pushed. Check wiring to the down valve. |
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Ensure debris is not holding the down valve plunger open. |
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Cylinder may be leaking |
Look at the vent line for signs of oil. |
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Unit fails to lower |
Down valve coil may not be energized |
Make sure the coil is energized when the down button is pushed. |
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Ensure the down valve itself is shifting and allowing oil to go back to the tank (do not remove this under pressure). |
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Check that nothing is binding, causing the unit not to lower. |
