Facom X.740 Guía De Instrucciones página 5

Start the engine and check that it is running at its idle
speed. Turn on the stroboscopic function lamp p by
pressing the key t. Direct the flashing lamp onto the
flywheel window by pressing the trigger f. Turn the
knob g to make the flywheel mark line up with the 0°
mark on the housing. Release the trigger f to hold the
figure in the display for 10 seconds. Read the initial
timing figure on the display i and compare it with the
manufacturer's figure.
A4) To measure DC voltage
clip on the red wire k to the item to be checked and
read the value on the display o.
A5) Storage. Press and release the trigger f to hold
the values shown on the displays u, i and o for 10
seconds.
B) To check the initial timing using the positive
magnetic probe
(on the engine flywheel)
Connect the magnetic probe wire l
a black one protected by a 2 A fuse)
diagnosis connector in the engine compartment
.
tion is not important)
With the engine running : Light the probe function
lamp q by pressing key t and light the positive probe
lamp d by pressing key y. Read the initial timing
figure on the display i and compare it with the
manufacturer's figure.
C) To check the initial timing using the negative
magnetic probe
(a tooth on the engine flywheel)
Turn on the probe function lamp q, by pressing the key
t. Light the negative probe lamp s by pressing key
y. Connection and testing is the same as for chapter
«B».
D) To measure peak voltage : disconnect the TDC
probe connector on the vehicle. Connect one terminal to
ground using the wire e with 2 crocodile clips. Connect
the clip on wire k to the other terminal. Light the
stroboscopic function lamp p by pressing key t.
Operate the starter motor for 5 to 10 seconds and read
the probe output signal value on the display o. Com-
pare it with the manufacturer's figure. If nothing appears
on the display check the wiring and the probe.
. Connect the
(voltmeter)
.
(a red crocodile clip and
onto the manufacturer's
(the direc-
.
B
i
u
XRD.740
l
r
BMW
i
C
XRD.740
l
r
D
e
k
START = 5 to 10 seconds
q
d
y
t
h
j
N°1 Cylinder
CITROEN
PEUGEOT
RENAULT
CITROEN
ç 1986
PEUGEOT
1987 ç
q
s
t
y
h
N°1 Cylinder
j
MERCEDES
pt
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