Page 8 • MN01005 ║ Issue/Rev. 0.6 (12/18)
2-Bladed Double Case PD Meters Service Manual
Disassembly
2.3.
Standard Pressure-Outer Cover (Models C2 Through JA10-S1 and A1)
1. If desired, the cover can be removed and set aside with the packing gland and gears in place.
On 10" meters, the gear train is attached to the cover of the inner mechanism. See Figure 4.
2. Any evidence of leaking through this packing gland will be visible at this time. To replace
packing gland, it is necessary to remove the jackshaft washer and gear as shown in Figure 5.
3. Packing gland may then be replaced as shown in Figure 6. See Table 12 on page 28 for
torque values.
4. Jackshaft should be inspected for corrosion or scoring.
If necessary to polish or replace, cover must be removed by removing bolts and nuts
securing cover to body.
5. Remove the upper jackshaft, thrust bearing, and link assembly, Figure 7. If reusable, clean,
polish and coat with grease.
6. Check the jackshaft bushing, Figure 7, for wear. Bushing may be replaced if worn.
7. Inspect the retainer and ball assembly, Figure 7, for wear. If worn, replace. Be sure flat side
of races are next to bearings.
8. Reassemble the jackshaft components and gear parts to cover.
Figure 4 –
Series JA10 10" Meter
Figure 5 –
Removing Pin from Washer
Figure 6 –
Removing Packing Gland
Figure 7 –
Jackshaft Assembly