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5.3 Fuel System Maintenance
Routine service items include draining water/sediment from piping at petcock or pipe end cap, checking for fuel leakage at pipe
connections, checking flexible sections for cracking or chafing, and keeping components clean including fuel regulator vent
holes.
A grease or wax residue tends to accumulate in the piping and fuel regulators over time. If fuel system problems persist,
disassemble the fuel system components and check for residue buildup. Remove any residue with a brush and mild detergent.
Additional service for LPG liquid withdrawal systems includes servicing the LPG gas filter, which is supplied by the fuel supplier
or the customer.
Cleaning the Gas Filter Element
Some models use an optional gas filter with a reusable filter element that requires periodic cleaning. See Figure 12 and use the
following procedure to clean the gas strainer.
1. Close the fuel supply valve, if not already closed.
2. Remove screws holding the cover on the assembly, and remove the cover.
3. Remove the filter, clean in solvent, and air dry. Inspect the screen for damage and replace if damage is noted.
4. Reinstall the filter element and cover.
Figure 11 Gas Filter Assembly
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