Standard Operation Procedure
15
Troubleshooting
Problem:
Depositor accuracy is off between each of the deposit ports.
Solution:
Check air pressure. Machine should hold 80-90psi while depositor in operation. If
pressure drops below 80psi, adjust the regulator by pulling out on the black knob and
rotating. If it does not stay above 80psi after adjusting the regulator, have the air
compressor checked.
o
A minimum diameter of 3/8” or 1/2" is required on the supply line from the compressor
to the depositor to carry sufficient CFM to the equipment. An in-line air dryer is highly
recommended.
Replace the O-rings on the product pistons and product valve. If O-rings are worn out or
not properly lubricated with Petrol-Gel, air will bleed past and cause the weights to be
off.
Problem:
Delrin product valve or product pistons seize up.
Solution:
The Delrin product valve or product pistons will expand when exposed to heat. The heat
could have come from the product. Depending on the product, the product valve and
product pistons can be exposed to excess friction. The excess friction causes the product
valve and product pistons to heat up. If this is the case, let the system sit and allow the
Delrin parts to cool. It may be necessary to modify the product valve or pistons to
prevent them from seizing up.
The product valve and product pistons can also heat up due to the product temperature
or the temperature of the water used to clean the hopper. If the product or water
temperature is above 110
˚
F, the Delrin will expand. If the product valve or product
pistons seize up, put cold water in the hopper and let the Delrin cool down. For this
reason it is important to use only lukewarm water when cleaning the hopper and Delrin
components.