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

Page: 12 / 48

Page 12
Maintenance
WARNING
Test equipment should be grounded to prevent a possible spark. Test area should have no ignition source. Operators should
wear personal protection and prevent any product exposure and environmental issues.
1). Keeping accurate maintenance and calibration records can be an excellent tool in determining the frequency
of inspection or maintenance for a system. As the meter wears, the calibration will be affected and require
adjustment. A personality profile can be created for each meter to help guide in a maintenance schedule.
2). Great care should be utilized in the maintenance of the metering system. Personal safety protection, environ-
mental hazards, and government regulations need to be the foremost priority. Only fully trained personnel
should be involved in maintenance. Failure to use original TCS replacement parts will void any Weights &
Measures approvals and risk damage to the meter system.
3). ALWAYS RELIEVE INTERNAL SYSTEM PRESSURE TO ZERO BEFORE DISASSEMBLY OR
INSPECTION.
4). SERIOUS INJURY OR DEATH FROM FIRE OR EXPLOSION COULD RESULT FROM MAINTE-
NANCE OF AN IMPROPERLY DEPRESSURIZED AND EVACUATED SYSTEM.
5). Total Control Systems flow meters and accessories are often used with LPG, petroleum, solvents, chemicals,
and other liquids that may be explosive, extremely flammable, very toxic, oxidizing, and corrosive. Severe
injury or fatalities may result if appropriate safety precautions are not followed.
6). Before replacing or cleaning filter/strainer screen, the electrical system must be turned off. Product needs to
be drained from system. Collect all product and return to storage or dispose of properly. Replace all drain
plugs that were removed. Personal safety protection must be worn at this time. Make sure there is adequate
ventilation in the area. The metering system will not completely drain so make sure you collect extra product
when you remove the strainer cover. Clean the screen once a week, or more often if there is a lot of sediment
in the system. Make sure there is no ignition source and the system is grounded. Replace all plugs that were
removed for drainage.
7).
The metering system is heavy and awkward so take precaution to handle it properly.
8).
Do not use force to disassemble or use a screwdriver to pry open any part of the metering system. Have the
proper tools available before trying to repair the meter system. Be careful of the parts as they can be sharp
and heavy. Do not drop housing or rotors as they can cause injury and can destroy the parts. Be careful when
inspecting and turning the timing gears and rotors as they can pinch
fingers, turn slowly to verify smooth operation.
9).
When inspecting the spring loaded preset valves do not place anything inside the housing, as the action of the
valve will pinch this object when the valve closes.