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Hydraulic Pump Maintenance
16
13. Reinstall the pump lid (U), which contains the crankshaft
(X), cam bearing (K), and motor/gearbox (F). Ensure the
cam bearing is inside the scotch yoke bearing housing
(J).
14. Align the pump lid (U), with the four holes for the ¼"-20
Socket head cap screws(S).
15. Install with Loctite 222 the 4 socket head cap screws(S),
and torque to 6 ft-lbs.
16. Move the pump assembly back into the main
mechatronic enclosure.
17. Reinstall the wire leads from the motor (F) to the motor
controller (MM).
18. Reinstall and tighten the two nuts from the piston
chamber outlet fittings (T) to the hydraulic isolation
valves (AA).
19. Open the hydraulic isolation valves (AA).
20. Follow instructions in section 3.7 for bleeding of the
hydraulics.
5.2 Pump Odorant Purge
In some cases, it may be necessary to drain and purge all
odorant from the Z10000 assembly and back into the bulk tank.
Do not send high pressure purge gas (either
nitrogen or pipeline gas) through the Z10000.
The positive displacement flow meter can
be damaged if higher pressures are used.
1. Ensure the Z10000 is in standby mode and that the
startup page with isolation valve override is open.
2. Turn the purge/injection 3-way valve (KK) to the purge
position.
3. Close the odorant supply valve on the bulk storage tank.
4. Close the blanket gas valve on the bulk storage tank.
5. Open the odorant prime/purge return valve on the bulk
storage tank.
6. Change the blanket gas regulator to 5–10 psig over the
current tank pressure, if blanket gas is used to purge. (If
an external source is used, make sure it is regulated to
5–10 psig over the current blanket pressure, and tube the
source after the odorant supply valve on the bulk tank.)
7. Open the odorant line purge valve.
8. Override the solenoid valve on the startup page. This
allows the gas in the odorant line purge valve to force all
odorant in the Z10000 out and back into the bulk storage
tank.
Z10000 Natural Gas Odorization System
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