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AVANT 225 - LPG System Maintenance and Checks; LPG System Maintenance; Checking for Gas Leaks

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Avant 220/225
71
.
Fuel system, 225LPG
A. Vapor draw propane cylinder
1.
Propane in liquid form inside cylinder
2.
Vaporised propane
3.
Fitting(s) for propane hose
4.
Shielded propane vapor pick-up
Depending on propane cylinder type and
availability. Shielded type recommended.
5.
Manual shut-off valve & overpressure relief
valve
6.
LPG hose
B. LPG fuel supply to engine
7.
30 µm filter
8.
Pressure regulator
9.
Electronic shut-off valve
10.
10 µm propane EFI filter
11.
Vapor LPG fuel injectors
LPG system maintenance
Over time, depending on fuel quality, operating
environment, and system performance, fuel deposits
can accumulate inside pressure regulator. See the
operator's manual of the engine for instructions to
remove any accumulated deposits.
The regulator is pre-adjusted at factory and must not
be opened or adjusted to comply with emissions and
safety standards. All other service than described
above related to regulator or the EFI system must be
performed by authorised service only.
Check for leaks
If a gaseous odour is detected, close LPG bottle
valve, turn off loader main switch, and ventilate area.
Find out cause for gas odour before attempting to
restart. To ensure personal safety, installation and
repair of propane fuel supply systems must be
performed only by qualified service technicians,
contact Avant service.
LPG is usually perfumed, in order that gas smell can
be recognised. Because of the perfume the gas
smells somewhat also in normal use especially when
running a cold loader engine, and when the engine is
under high load. If the gas smell is strong, do not
start the engine. Find out the reason for the gas leak.
Use soap water to check all connectors and hoses to
check for leaks. Sophisticated leak indication solution
or gas detecting equipment can also be used. Apply
plenty of soapy water or other solution on all fittings
after tightening. After you open the gas bottle valve,
check if leaking gas causes bubbles to appear. Move
the gas hose around a little to make sure that all
fittings are tight. Close the gas bottle and wipe the
fittings clean after test.
.
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