LANDI RENZO S.p.A.
‘SE 81 SIC’ LPG REGULATORS INSTALLATION AND ADJUSTMENT MANUAL
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Sensitivity setting
Maintenance
7) Place the cap on the sensitivity screw (G) in
order to avoid accidental or intentional
changes in its setting.
Another less sensitive but more rapid system for
sensitivity adjustments is as follows:
1) Fully tighten the sensitivity screw (G);
2) Turn the engine on and set idle speed by
means of screw (E) until the maximum CO
2
level is attained;
3) Slowly loosen the screw (G) until a marked
change (reduction) in the CO
2
level is
reached;
4) From the time that this CO
2
change is
observed, tighten the screw (G) until the CO
2
value is the same as in item 2.
5) Place the cap on the sensitivity screw (G) in
order to avoid accidental or intentional
changes in its setting.
6) Check that no acceleration gaps are
observed while slowly accelerating.
After the first 500 / 1.000 Km check regulator
sensitivity.
7. MAINTENANCE WORK ON THE SYSTEM
To get the best out of LPG fuel, the engine must
be tuned and regularly serviced, both as regards
the mechanical and the electrical parts. In addition
to the routine maintenance required by the vehicle
manufacturer, it is recommended:
• every 15,000 km check/replace the air filter,
change the spark plugs, check the exhaust gas
with an analyser, check the efficiency of the
electrical system (check there is no oxide
formation in the connections);
• every 30,000 km check the valve clearance,
check lambda probe efficiency (for cars with a
catalytic converter); with the bleed plug, check
there is no oil or other residues inside the
regulator;
• every 100,000 km, if malfunctioning occurs,
carry out a general overhaul of the system using
our product overhaul kits, which are support of
instructions showing the methods to follow.
Using spark plugs with a colder heat rating, it is
wise to check that the distance of the electrodes is
never greater than 1 mm.
It is advised to increase the valve clearance by
0.05 mm with respect to the specifications for
Maintenance
petrol operation provided by the vehicle
manufacturer.
Having installed the LPG conversion system, it is
natural to travel as many kilometres as possible
with this fuel: however, so as not to prejudice the
correct operation of the original petrol system and
fuel pump, it is advised to travel 2 - 3 km on petrol
at least every 200 - 300 km (example at each LPG
refuelling)
Date, descriptions and illustrations are indicatory.
LANDI RENZO S.p.A. reserves the right to
improve or modify them without prior notification.
