TM 10--3510--221--24
0086 00--2
AIR TANK NOT PRESSURIZING -- Continued
0086 00
10. Check for air leaking from petcock at bottom of air tank.
Is air venting from petcock?
YES Close petcock. Return to normal operation.
NO Go to step 11.
11. Check for air venting from relief valve on air tank.
Is air venting from relief valve?
YES Replace relief valve (WP 0199 00).
NO Go to step 12.
12. Check for air leaking from tubing and fittings between air compressor and air tank.
Is air leaking from tubing or fittings?
YES Repair as required.
NO Go to step 13.
13. Monitor air system operation and ”AIR TANK PRESS” reading.
Does air pressure reading increase to >120 PSIG in 8 minutes or less?
YES Go to step 14.
NO Go to step 19.
14. Record ”AIR TANK PRESS” and time.
15. Observe ”AIR TANK PRESS” reading for approximately 5 minutes.
Does ”AIR TANK PRESS drop more than 1 psig after five minutes?
YES Go to step 16.
NO Go to step 8 of PRODUCT PRESSURE LO FAULT (WP 0089 00).
16. Disconnect air tube from inlet of check valve.
Is air leaking out of check valve?
YES Replace check valve (WP 0202 00).
NO Reconnect tube to check valve. Go to step 17.
17. Check for air leak at all connections on air tank.
Are any leaks found?
YES Repair as necessary.
NO Go to step 18.
18. Check for air leaking from piping and fittings between air tank and manual valve.
Is air leaking from piping or fittings?
YES Repair as required.
NO Return to start of this procedure.
