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Hydraulic Pump Maintenance
 Note:
Reference drawing
10-05072H.
14
5. Hydraulic Pump Maintenance
Do not damage seals or sealing surfaces.
Seal failure can result in inadequate
pump volume or odorization failure.
To avoid damaging these surfaces, use
soft vice jaws to hold components.
When assembling or disassembling the hydraulic pump, be
careful to avoid damage to the seals and the sealing surfaces.
If significant damage is incurred, seal failure can result in
inadequate pump volume or odorization failure. Use soft vice
jaws whenever a component needs to be held, and clean and
degrease all sealing surfaces before reassembly.
Unless otherwise noted, lubricate all threads with a copper
grease, such as Loctite C5-A, to prevent seizure.
Use a calcium based grease, such as JetLube 35050, on all
O-rings, seals, and sealing surfaces when assembling.
When performing maintenance, the pump should be removed
from the mechatronic enclosure and moved to a clean area.
5.1 Maintenance cycle
The hydraulic pump assembly, which includes the motor and
gearbox, is designed to go without maintenance for 3 million
cycles, or 1 year, whichever comes first.
5.1.1 Pump Removal
To remove the pump from the mechatronic enclosure:
1. Ensure that the unit is turned off.
2. Open the electronic assembly door, and disconnect the
wires leading from the motor/gear box (F) to the motor
controller (MM). Remove the ground wire.
3. Close the electronic assembly door and also close the
two hydraulic isolation valves on either side of the pump
(AA).
4. Using a 11/16th or adjustable wrench, loosen the nuts
connecting the isolation valves (AA) to Piston chamber
outlet fittings (T).
5. Loosen and remove the two #10-32 Socket Head cap
screws from the bottom of the pump (RR).
6. The pump body can now be pulled out of the
mechatronic enclosure. Note that hydraulic fluid can leak
out of the pump body at this point; take care to minimize
spills and drips of the fluid.
Z10000 Natural Gas Odorization System
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