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INSTALLATION AND ADJUSTMENT MANUAL
GENERAL WARNINGS Fig.1
Install in an upright position far from any possible
infiltration of water.
Install far from any sources of excessive heat (eg. exhaust
manifold).
Install far from the ignition coil and pass the wiring far
from the high voltage cables.
Make good electrical connections without using a "current
tap".
Bear in mind that the best connection is duly insulated
welding.
Never open the processor box for any reason whatsoever,
especially with the engine running or the panel switched
LANDI RENZO S.p.A. disclaims all liability for any
damage or injury deriving from unauthorized
personnel tampering with its device.
EMERGENCY FUNCTION Fig.2
S.O.S. Warn the customer that in the event of failure, the
processor is equipped with an emergency connector that
excludes it and restores the original connection.
TO EXCLUDE IT PROCEED AS FOLLOWS:
NORMAL OPERATION
The wiring plug is inserted in the WHITE connector of
the processor unit.
EMERGENCY OPERATION
Take the wiring out of the WHITE connector for normal
operation and insert it into the RED EMERGENCY
connector as shown in the diagram alongside.
TECHNICAL SPECIFICATIONS
Feeding Tension:
10 ÷ 14 Vdc
Advance Regulation Field:
CNG Curve
LPG Curve
Overal dimensions of the electronic Advance Variator Box:
height
depth
width
Ø fixing hole
ADVANCE REGULATING Fig.3
The advance regulation is carried out throught the
microswitches and the trimmer placed a side of the
processor adapter.
DRAWING FOR THE ADVANCE
REGULATING
The microswitches 1,2 have got the following functions:
N°1) set in OFF advance always connected
All manuals and user guides at all-guides.com
150 mm
35 mm
80 mm
6 mm
LANDI RENZO S.p.A.
STAP 53-STAP 54
set in ON advance disconnected under the 1.100 rpm
N°2) set in OFF advance for C.N.G.
set in ON advance for L.P .G.
The Timing Advance Processor is already regulated
for the C.N.G. operation and advance always
connected.
HOW AND WHEN DISCONNECT THE
ADVANCE IN DECELERATION AND IN
IDLING POSITION
It is profitable to cut off the advance in deceleration and
in idling position over some cars, so as to avoid continuous
bounces or irregular workings. On the other hand, the
advance is immediately necessary in acceleration, to
improve the performances, consumers and to reduce to
a minimum the danger of backfires.
With the STAP 53 e STAP 54 Timing Advance Processor,
the advance can automatically be connected or
disconnected cabling the BLUE - YELLOW wire of the
Timing Advance Processor to the signal wire of the
throttle potentiometer. For the connection, see the specific
drawing supplied for each car.
NOTE: Omit the connecting advance setting in the case
the BLUE - YELLOW wire doesn't connect itself.
CONNECTING ADVANCE SETTING
The signal of the throttle potentiometer is not always the
same, so it's foreseen a setting for the intervention point.
The adjustment is made operating on the register of the
advance intervention, as follows:
1) verify that the register is clockwise turned;
2) begin to turn anti-clockwise the register in idling car
position, until the green pilot will light off ( advance
disconnected );
3) in this way, while accelerating, the green pilot placed
on the Timing Advance Processor, lights again and it
lights off when you leave off the accelerator.
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