LPLT Filter Press Instruction Manual
207128
Revision G, September 2012
21
8
Troubleshooting and Maintenance
Troubleshooting and regular maintenance procedures are described in this section.
If more extensive maintenance or service of the instrument is required, please
contact Fann Instrument Company.
8.1
Cleaning
After each use, disassemble and clean the filter press cell. Wash and thoroughly
rinse all drilling fluid from the cell.
Wipe the filter press, and dry all parts completely.
Replace the filter paper on the screen, and assemble the end cap onto the cell.
Reassemble the cell onto the frame for storage.
8.2
Pressure Regulator Maintenance and Repair
Most regulator malfunctions are caused by leaking fittings or faulty pins and seats.
A diaphragm rarely ruptures.
8.2.1 Checking for leaks
If the regulator will not hold pressure, check the fittings connected to it.
Apply pressure to the system and look for escaping gas in the form of bubbles.
There are two methods of doing this. One method is to apply soapy water to the
fitting areas, and the other method is to carefully immerse the entire regulator,
except the pressure gauge in a container of water.
If leaks are apparent, disassemble and apply thread sealant to the threads.
Do NOT use oil-based thread sealant or oil when assembling any
regulator.
