Issue/Rev. 0.6 (12/18) ║ MN01005 • Page 7
2-Bladed Double Case PD Meters Service Manual
Disassembly
2 – Disassembly
2.1. General
To assure adequate inspection and maintenance, the step-by-step procedures in this manual
should be carefully followed. To gain a better understanding of high capacity rotary meter de
-
sign and construction, it is suggested that the service person review this manual before starting
disassembly.
All parts, as they are removed, should be thoroughly washed and cleaned in solvent. Parts that
are worn enough to affect operation or calibration should be replaced. All parts that are nicked,
gouged, or have rough places on them, should be dressed with a fine file or crocus cloth, as
conditions warrant.
2.2.
Suggested Tools and Fixtures
In addition to ordinary hand tools, the
following tools and equipment will facilitate
work on the meter.
• Suitable lifting equipment for larger
meters.
• Crocus cloth.
• Feeler gauges
1
, leaf type 9 as illustrated
during disassembly) – (Table 1).
• Wood box (Figure 3A) for supporting
inner unit.
• Eye bolts: one 1"-*, two ½"-13, two
3/8"-16.
• Circular wood block (Figure 3B) to
support rotor.
• Mic, depth type – 1".
• Idler pin puller (Models C2- H-8 Low
Pressure, S1) facilitates removal of idler
pinion gear shaft from cover.
• Rotor shaft nut with loop
1
and spiders
1
.
• Spiders
1
(Figure 3C).
Parts No.
2
Thickness
Part No.
2
Thickness
515252-1
.0015"
515252-11
.011"
515252-2
.002"
515252-12
.012"
515252-3
.003"
515252-13
.013"
515252-4
.004"
515252-14
.014"
515252-5
.005"
515252-15
.015"
515252-6
.006"
515252-16
.016"
515252-7
.007"
515252-17
.017"
515252-8
.008"
515252-18
.018"
515252-9
.009"
515252-19
.019"
515252-10
.010"
515252-20
.020"
Table 1
– Feeler Gauge Sizes
1 Available Smith Meter
®
Parts. Reference Form No. PO0A001.
2 Consists of feeler gauge soldered to 15" rod. An extension rod (22") and coupling is available as Part No. 5152500.
Figure 3A –
Wood box
Figure 3B –
Circular wood block
Figure 3C –
Spider and Bushing
