Manual

Problem

Leakage from seal cover.

Product flows through meter but the regis-

ter does not operate

Breaking teeth on gears.

No flow or low flow through the meter

Meter operates too slowly:

Product flows through the meter but regis-

ter does not record properly:

Probable Cause and Solution

 Seal has been damaged due to shock

 Cover bolts have not bee tightened sufficiently

 Replace seal and /or re-torque bolts

 Pulser is not functioning properly

 Meter gears are jammed and not turning

 Replace the pulser, inspect internal meter parts

 Starting or stopping flow too rapidly.

 Normal wear after long service

 Replace gears

 Correct system operation

 Check pump by-pass setting.

 Faulty non-functioning pump

 Differential vale not open or not functioning. Replace valve

 Meter “frozen” due to build up of salts or frozen material. Clean meter

internals and inspect for damage

 Vapor vent line valve shut or obstruction in vapor vent line. Open valve

or remove obstruction

 Strainer dirty and plugged. Clean Strainer

 U-Cups on differential valve leaking. Replace U-Cups

 Differential valve internal mechanism faulty. Valve does not open fully.

 Meter gears or rotors partially “salted”, enough to slow the rotating

gears. To correct, clean gears.

 Strainer partially plugged. Clean strainer basket.

 Pump not functioning properly. Repair pump

 Pulse output board faulty, or not calibrated for electronic register.

 Vapor release valve sticking.

 Differential valve leaking.

 Repair or replace as necessary.

Trouble Shooting