Stenner Pumps CLASSIC Serie Manual De Instalación Y Mantenimiento página 24

TROUBLESHOOTING – FEED RATE CONTROL
PROBLEM
Dial ring will not turn
Dial ring turns,
output doesn't change
Pump head does not rotate
Pump head rotates continuously Variable cam
Erratic indexing
24
Classic Series
POSSIBLE CAUSE
Seized variable cam
Seized dial ring
Variable cam disengaged from
dial ring
Broken variable cam
Worn index plate
Motor problem
Pump head roller assembly stripped Replace roller assembly
Index pin holder loose
Index pin broken
Index plate worn
Variable cam worn
Lifter worn
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SOLUTION
™
Apply Aquashield to variable cam &
cam slot in feed rate control housing
Clean then lubricate dial ring
with AquaShield ™
Re-insert 90˚ end into ring
Replace variable cam
Turn over or replace index plate
Refer to Motor section
Tighten holder into spider assembly
Replace index pin and lifter assembly
Replace or re-insert variable cam
Turn over or replace index plate
Replace variable cam
Replace index pin & lifter assembly