Ametek Chandler Engineering 8040D10, Instruction Manual

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4-2 TROUBLESHOOTING
Pressure
Causes
•
Will not build pressure
•
Pressure control valve open or leaking
•
Pressure bleed valve open or leaking
•
Cylinder plug leaking
•
Pump malfunction
•
Blown rupture disk
•
No air at pump
•
Oil level low
Solutions
•
Disassemble and clean air control valve body and seat per maintenance instructions
•
Replace stem, seat, and packing on air control valve per maintenance instructions
•
Close or replace pressure bleed valve
•
Remove cylinder plug and clean, lube, replace seal per maintenance instructions
•
Contact Chandler Engineering service department for pump rebuild
Plug jammed in cylinder
Causes
•
Failure to lubricate threads
•
Foreign matter in seal ring
•
Plug was over-tightened
Solutions
•
Cool down plug and unscrew by striking handles with rubber mallet
•
See cylinder maintenance section
Pressure will not bleed off
Causes
•
Cement or other foreign material in manual valve
Solutions
•
Disassemble and clean or replace valve
Erratic pump action
Causes
•
Air lock in pump piston cavity
•
Contaminants in pump valve body
Solutions
•
Increase air drive pressure more gradually to slow down pumping cycle