Dover HEIL Command-SST - Inspection;Preventive Care Schedule; Preparation before Maintenance

Issued June 2020
Compressed Natural Gas (CNG) Option
Copyright 2020, Heil Environmental
Printed in U.S.A.
228
CNG FUEL SYSTEM INSPECTION/PREVENTIVE CARE SCHEDULE
ITEM
FREQUENCY
Check Vent Lines
Daily
Drain Low Pressure Filter
Daily
Perform Daily CNG Fuel System
Inspection on next page.
Daily
Replace Low Pressure Filter
Refer to the engine manufacturer for maintenance and replacement
guidelines.
Drain High Pressure Filter
Weekly
Replace High Pressure Filter Element
At regular oil change intervals or every 30,000 miles
Drain Vent Lines
Every month (or immediately if blue vent cap is missing)
Leak Test with Methane Detector*
Monthly, or if involved in any accident, or if you smell gas.
Component Inspection*
Monthly
Cylinders*
Inspect compressed gas cylinders as outlined by cylinder manufacturer
* To be completed by a qualified and trained person.
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