S0708460K
Page 16
Main Pump (Denison T6DMY Series)
Pump making noise, Pump intake partially blocked. Service intake strainers. Check
fluid condition and, if necessary,
drain and flush system. Refill with
clean fluid.
Air leaks at intake or shaft seal. (Oil
in reservoir would probably be
foamy).
Check inlet connections and seal
to determine where air is being
drawn in. Tighten any loose
connections and replace seal if
necessary. See that fluid in
reservoir is above intake pipe
opening.
Pump drive speed too slow or too
fast.
Operate pump at recommended
speed.
Coupling misalignment. Check if shaft seal bearing or
other parts have been damaged.
Replace any damaged parts.
Realign coupled shafts.
Problem Possible Cause Remedy
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