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User manual
P/N 3-9008-507
9.4
Mechanical assembly
Protection for rotor blades from rough handling as blade position is critical to turbine
meter performance.
Use appropriate torque values to reinstall the shaft nut and to avoid equipment damage or
inaccurate turbine meter operation.
Important
The shaft nut can only be reused up to five times. Replace as needed.
Table 9-1: Torque requirements for shaft nut reinstallation
Turbine meter size
1
1.5
2
2.5
9.4.1
Assemble internal meter housing components - NPS 1
Procedure
1. Push one end of the shaft into the center hole in the downstream spring clip
assembly cone. Place a thrust washer, unpolished side first, onto the shaft and
position in the counterbore of cone.
Figure 9-15: Shaft and thrust washer installation
A. Downstream cone
2. Place the journal on the shaft and slide to contact the downstream cone. Wipe the
outside surface of the journal with a clean cloth.
User manual
Planned maintenance
September 2020
Torque requirement
1.69 n-m (15 in-lbs)
2.82 n-m (25 in-lbs)
3.38 n-m (30 in-lbs)
4.51 n-m (40 in-lbs)
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