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18-10-2004
18-10-2004
00
REG. CODE
1-5302-662
MODEL N°
51092
DATE OF ISSUE
REVISION
DATE
ENDORSED
COMPILER TECO/ATI
XI
75
76
77
78
DISASSEMBLY/REASSEMBLY
Glow plug - Disassembly
Thermoelectric specifications
Connection: ......................... 1 pole
Nominal voltage: ................. 11 Volt
Operating voltage: ............... 9 ± 1 Amp
Temperature: ....................... 850° C = </= 6.5 sec.
Maximum temperature:
</= 1150° C
Sensor for cooling liquid temperature indicator light
- Disassembly
Features:
Circuit: ........................................... Unipolar
Supply voltage: .............................. 6/24 V
Voltage: .......................................... 6/24 V
Absorbed power: ........................... 3 W
Operating temperature:
110 ± 3° C
Glow plug - Check
Remove the glow plug from the cylinder head and connect it through two cables to the poles of a 12 V battery. The positive [
+] pole of the battery must be connected to the appropriate contact of the glow plug whereas the negative [–] pole will be
connected to the threaded part of the plug ( ground ).
In these conditions the glow plug shall first turn red and then glows, starting from the tip and growing towards the thread.
If you see the glow plug getting red and then glowing not from the tip but from the middle of the glow tube, just replace it.
The whole procedure must be carried out in few seconds not to damage the glow plug.
WARNING: this check shall be considered dangerous , because the glow plug in a few seconds reaches a very
high temperature, over 1,000 °C, and any physical contact with a human body can cause severe burns.
After removing the glow plug from the cylinder head, should you find it corroded or without the tip that protrudes into the
prechamber, check the Injection system parameters and replace the glow plug.
When the glow plug does not work the engine does not start, specially in cold temperature.
If it starts after repeated and long cranking attempts ( depending from ambient temperature, wear conditions and fuel
setting ) you would notice heavy exhaust smoke, from white to pale grey, very annoying for eyes and nose.
After fitting the glow plug into the cylinder head, check with a tester for electrical continuity.
Содержание LDW 422 SERIES
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