FMC Technologies Smith Meter T-20

Issue/Rev. 0.5 (6/11)
MN01029 • Page 3
Suggested Tools and Fixtures
In addition to ordinary hand tools, the following tools and
equipment will facilitate work on the meter.
• Feelergauges,leaf-type(seeTable1).
• Emerycloth.
• Woodblockorequivalent(seeFigure1).
Table 1 — Feeler Gauge Sizes
Part No.
1
Thickness Part No.
1
Thickness
515252-001 .0015" 515252-011 .011"
515252-002 .002" 515252-012 .012"
515252-003 .003" 515252-013 .013"
515252-004 .004" 515252-014 .014"
515252-005 .005" 515252-015 .015"
515252-006 .006" 515252-016 .016"
515252-007 .007" 515252-017 .017"
515252-008 .008" 515252-018 .018"
515252-009 .009" 515252-019 .019"
515252-010 .010" 515252-020 .020"
• Spiders
2
(Figure 2).
• CamSettingBushing
2
(for T-11 and I-75 Meters only)
- 552469-001, Figure 1A.
• CamSettingFixture
2
(for T-11 and I-75 Meters only)
- 552469-002, Figure 1A.
Disassembly of Model T-11 and I-75 Meters
Removing Rotor Assembly From Housing
1. Remove all accessories from top of meter.
•Thecalibratordoesnothavetoberemovedunless
jackshaft and gear, pinion gear, or packing gland
have to be replaced.
2. Remove meter housing cover, Figure 3.
•Slotsareprovidedaroundtheperimeterofthecover
to assist in prying the cover from the housing.
•Whenreplacingcover, turnadjustingscrewin
bottom of housing to the extreme clockwise
position.Thiswillplacetherotorassemblyon
thebottomofthehousingandallowthecover
to be firmly secured to the housing. If rotor
assemblyisnotbottomed,itispossibletodam-
agethecoverwhenitistightenedtothehousing.
Section 1 – General Information and Description (continued)
•Beforereplacingcover,applyathinlayerofseal-
ant (Master Gasket by Loctite is recommended)
aroundtheperimeterofthecovertoformaseal
betweenthehousingandthecover.Ifasealant
isnotused,uidmayleakoutofthecover.
 NOTE:MeterswithO-RingsDONOTrequirea
Master Gasket
•Atreassembly,caremustbetakenthatthejack-
shaft gear, Figure 3, and rotor gear, Figure 4,
 are properly meshed when the cover is
assembled to the meter body.
 This is accomplished by slowly rotating the
calibrator output drive shaft as the cover is
loweredontothemeterhousinguntiltherotor
andjackshaftgearsmesh.
3. Remove rotor assembly, Figure 5, and clean rotor
and housing interior.
Figure 5
Figure 4
2 Available through Smith Parts Operation. Reference Form No. P1205.
•Liftstraightuptopreventdamagetotherotorblades.
•Ifthemeterhasbeeninserviceoncrudeoilorany
other viscous liquid, a solvent should be used to
dissolve the residue. Do not use water.
Figure 3