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Page 19
A)
CHECK PLUNGER POSITIONING
refer valve positions
B)
CHECK DRAIN SHUT-OFF 'O' RING
located at drain and of plunger
A)
UNIT MAY BE FOULED WITH SUSPENDED SOLIDS
backwash and check again
B)
SERVICE INLET OR OUTLET VALVE NOT FULLY OPENED
ensure they are opened
C)
PISTON OUT OF POSITION
reposition (refer valve position diagram)
3.
Leak to Drain
4.
Insufficient Service Flow Rate
Summary of Contents for AFM20-180
Page 5: ...Page 5...
Page 11: ...Page 11 FLOW SCHEMATIC...
Page 12: ...Page 12 REPLACEMENT PARTS...
Page 20: ...Page 20...