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TM 5-3825-220-13&P
6-4.18 Meter Strainer Assemblies - Cont'd
respectively) are in Appendix A. Detailed information on the strainer (Weamco) and the attached air eliminator head
(Smith Meter Co.) is also in Appendix A. Fig. 6-23 showing the strainer and air eliminator head and Fig. 6-22 showing
the nomenclature and dimensions of the meter and the register are included in this chapter for maintenance
convenience.
b.
Recommended corrective maintenance procedures on the meter and register are as follows.
1.
Refer to the detailed information in Appendix A before proceeding with any corrective maintenance work.
2.
If the meter malfunctions, the entire unit should be removed and replaced with a spare unit or with a
temporary pipe spool cut to the proper length. All meter maintenance work should be done in a qualified and properly
equipped shop.
3.
It is not recommended that any extensive work be done under field conditions. A field shop should,
however, be capable of handling the following.
a)
Replace the meter register when malfunctioning.
b)
Clean and flush debris from the meter body using a very light lube oil.
4.
Malfunctioning meters or registers should be passed up through maintenance channels for repairs or
disposition.
c.
Recommended corrective maintenance procedures on the strainer are as follows:
1.
Refer to the detailed information on the Weamco strainer and the air eliminator head before attempting
any maintenance.
2.
The most repetitive maintenance work is the removal and cleaning of the basket. To do so, remove the
head bolts and lift the entire head with the air eliminator off and set it down such that the seating surfaces do not get
dirty. Pull the basket up and out, empty any debris in the basket and flush the basket clean. Remove any debris present
in the body. Make sure the drain is open. Replace the basket. Check the head gasket. Replace if necessary. Replace
and bolt up the head.
3.
If during the procedure in (2) above it is noted that the basket is broken or badly deformed, it should be
replaced. The damaged basket should be passed up thru maintenance channels for disposition.
4.
The air eliminator head should be inspected routinely. This can be done during the basket cleaning
procedure. The air eliminator must be functional and adjusted properly to avoid having a flow of air upset the meter
reading or possibly damage the meter. Refer to the detailed information and instructions in Appendix A.
5.
If for some reason the strainer body or the grooves on the inlet and outlet nozzles are damaged such that
safety is compromised, the entire unit should be replaced and the damaged unit passed thru maintenance channels for
disposition.
6-22
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