TM 10--3510--221--24
0086 00--1
AIR TANK NOT PRESSURIZING
0086 00
THIS WORK PACKAGE COVERS:
Troubleshooting Air Tank Not Pressurizing Fault
INITIAL SETUP:
Maintenance Level
Materials/Parts
Unit
Tools and Special Tools
Equipment Conditions
Tool Kit, General Mechanics (Item 1, WP 0272 00)
Power must be applied at main control
enclosure (WP 0010 00).
1. Open access door to gain access to air system.
2. Close manual valve at outlet of air tank.
3. Open petcock at bottom of air tank. Allow air pressure to vent then close petcock.
4. Record time then use maintenance menu to start air system (WP 0010 00).
5. Observe air compressor operation.
Is air compressor operating?
YES Go to step 6.
NO Go to AIR COMPRESSOR DOES NOT TURN ON FAULT (WP 0090 00).
6. Check for air leaking from petcock on air compressor discharge tube.
Is air venting from petcock?
YES Close petcock. Return to normal operation.
NO Go to step 7.
7. Check for air venting from relief valve on air compressor.
Is air venting from relief valve?
YES Replace leaking relief valve (WP 0199 00).
NO Go to step 8.
8. Check for air venting from drain port on coalescing filter.
Is air venting from drain tube?
YES Replace coalescing filter (WP 0200 00).
NO Go to step 9.
9. Check for continuous air venting from dehydrator exhaust port.
Is venting out of dehydrator?
YES Replace dehydrator (WP 0201 00).
NO Go to step 10.
