YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, PA • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
NJEX ZEO Version 04/13/2021
Page 75
Preventative Maintenance Schedule
A preventative maintenance program serves to anticipate maintenance issues before the system
requires service. Like changing the oil & filters in an automobile, by servicing the parts and
operations in the NJEX ZEO System at regular intervals, the technician can perform the
maintenance service when desired, rather than when required, such as in the middle of night.
The key is to perform maintenance before required. The preventative maintenance schedule
implemented should consider the application of the odorizer. Many of these considerations
include the weather environment, the condition of the odorant and bulk storage tank, etc. These
issues must be considered when establishing a preventative maintenance schedule.
Caution: Some maintenance procedures listed below require purging odorant and
relieving the process gas pressure. Refer to the maintenance instructions to purge and
vent if maintenance is performed on tubing, manifold, intermediate block, etc. Purging
and venting removes odorant and pressure in the suction line up to the pump head and
intermediate block. Discharge pressure and odorant will remain beyond the manifold
check valve into the discharge lines and must be purged and vented by another means.
Recommended Maintenance Schedule Weekly Inspection
1. Verify odorant tank pressure and level
2. Check for gas and odorant leaks
3. Examine the oil level in the injection pump
4. Visually inspect the N-400 Controller for alarm indications
Semi-Annual Inspection
1. Inspect tube fittings for leaks
2. Inspect and clear odorant filter located in the inlet line.
Annual Inspection
1. Change filter located on exterior of cabinet
2. Change bulk odorant filter elements within manifold
3. Test regulators and service as needed
4. Injection pump diaphragm replacement
5. Drain and replace injection pump oil
6. Test the NJEX ZEO System performance
Section 7: System Maintenance
Recommended Spare Parts
Part #
Description
Quantity
D3-0295
ZEO Diaphragm Changing Tools
1
D3-0307
Check Valve Maintenance Kit
1
C4-1222
Odorant Inlet Filter
1
D3-0305
Bulk odorant filter element replacement kit
1
D3-9009
mROY A diaphragm replacement kit
1
D2-0077
ZEO Hydraulic/Gear Oil SHC-629
1
D3-9010
N-400 replacement fuse kit
1
Содержание NJEX ZEO 6400
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