Sullivan-Palatek UD Series, User Manual, Page: 61 / 102

53 MAINTENANCE
6.9 AIR FILTER
The air filter should be replaced every 1,000 hours or more often in severe or outside conditions or if fault
A:2030 or A:4804 is shown on the microprocessor.
The inlet filter is a critical filter, protecting the compressor from exterior foreign materials. Keeping the inlet
filter element clean will help maintain proper capacity rating of the compressor.
FIGURE 6-6.
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Filter Body
Secondary Filter Element
Primary Filter Element
End Cap
AIR FILTER MAINTENANCE
6.9.1 REMOVAL
1.
Follow 6.3 Stopping for Maintenance procedures.
2.
Unfasten the clamps on the rear housing and remove.
3. Remove primary air filter element and secondary filter element (if equipped).
4. Discard the dirty air filter elements. Normal trash pickup is acceptable. Never burn.
6.9.2 INSTALLATION
1.
Attach new air filter element(s).
2. Re-attach rear housing and secure clamps.
6.10 OIL/AFTER COOLER
The oil/after cooler fins should be inspected and cleaned every 1,000 hours (or quarterly).
6.10.1 INSPECTION
1. Inspect the cooler from the fan guard side. If any dirt or foreign material is found, the cooler should be
removed and cleaned.
2. Cleaning in place may cause damage to the fan or cooler.
6.10.2 REMOVAL
1.
Follow 6.3 Stopping for Maintenance procedures.
2. Remove the oil/after cooler.
6.10.3 CLEANING
blow dirt and foreign material from the cooler.
6.10.4 INSTALLATION
1. Reattach all oil tubing and air tubing to the oil/after cooler.
2.
Start compressor according to 5.4 Normal Start procedures and check for leaks.
6.11 MINIMUM PRESSURE VALVE
The minimum pressure valve should be inspected and cleaned once a year, or when the separator element is
replaced. Rebuild or replace as necessary.