Inspection Of Parts - Total Control Systems 700-LP Series Installation, Operation & Maintenance Manual

Inspection of Parts

1)
Inspect the surfaces of rotors, bearing plates, meter housing and gear teeth for any damage or wear.
2) Replace parts as needed.
CHAMBER WEAR
A) Foreign debris, similar to sand or
sludge, has run through the meter.
B) Meter has been operated at a higher
capacity and has worn the bearings
out, allowing rotors to contact the
chamber.
Fractured
Bearing
A) A valve downstream of the flow meter has abruptly shut off, creating hydraulic shock.
B) Flow meter potentially had large volume of free air flowing within the system, followed by fluid.
Page 30
HYDRAULIC SHOCK
GEAR WEAR
A) Meter has been run on air (oversped).
B) Meter has been operated at a higher
volume capacity than what is rated.
Hogged-Out
Keyway