B
Rev
RE
Status
Model Version
04
01
Version
01
A
Status
Rev
9 of 14
page
Bulletin
AE01B-A0599-001
Installation Instructions
MT050C
3.0 - Maintenance
Section 3 - Maintenance
The MT050C Dehydrator requires relatively little maintenance to ensure satisfactory operation over long periods of time. This section
outlines the recommended annual preventive maintenance for the unit and the suggested overhaul for every 6000 hours of compressor
operation.
3.1 - Regular Maintenance
The MT050B Dehydrator will perform at an optimum if it is routinely checked for correct performance. This checking generally consists of
an annual inspection of the condition of the air intake filter and an overhaul after every 6000 hours of compressor operation. Performance of
these measures is sufficient to ensure continued reliable operation.
3.2 - Preventive Maintenance
The annual maintenance of a MT050C consists of a preventive maintenance inspection of the dehydrator and replacement of the foam air
intake filter. This task can easily be performed in the field with the unit connected to the transmission line system and with only the main
cover removed for maintenance.
3.3 - Filter Element Replacement
Periodically, the air intake filter on the compressor will require replacement. The air intake filter protects the compressor from
contamination and dust. Periodic replacement extends the life of the compressor. To gain access to the element, push in on the cover and
rotate the housing approximately 1/4 turn CCW. The filter is made of a fibrous material and should be replaced once a year (or more
frequently, if the operating environment is very dusty). Remove the old filter and discard. Ensure the new filter is seated completely in the
housing and then replace the cover.
When the unit is inspected, the coalescing filter elements should be checked. If they appear discolored or have material buildup, they
should be replaced.
3.4 - Annual Inspection
Inspection includes checking for loose or damaged hoses, fittings and electrical connections. Remove the cover and verify that there
is not excessive water build-up in the two filter bowls. There may be some droplets of water in the filter bowls (the lower portion of each
bowl), but there should be only a small amount of liquid in either bowl. If there is excessive water, refer to the troubleshooting section 4.
Replacement of the filter elements in the coalescing filters are covered in the overhaul section of their respective replacement kits.
3.4.1 Check the electrical connections.
Check the screw at the power input connector to ensure that the ac power cord is securely terminated. Check the screw-in alarm terminals
to ensure that all wire connections are tight. A loose or damaged connection may result in erratic operation and unnecessary downtime.
Refer to the troubleshooting section if an electrical problem is encountered.
3.4.2 Check the ground wire.
Check that an electrical safety ground is installed on the stud on the rear of the dehydrator. This connection point is adjacent to the power
input connector. (It is intended to be customer installed in the field to the customer halo system).
3.4.3 Check the hour meter
Check the hour meter in the display to help to determine the duty cycle of the dehydrator. If the dehydrator has been running for more than
20% of its installed time, check the systems for leaks. Also check the time on the meter to determine if it is time to perform the 6000-hour
overhaul.
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