G80XW/XF, G115XW/XF, G150XW/XF, G200XW/XF - 50HZ
OPERATION & MAINTENANCE MANUAL
84
G100XW/XF, G135 XW/XF, G170XW/XF, G225XW/XF - 60Hz
CAUTION
If any parts that contain a seal ring (copper seal ring,
rubber coating seal ring, etc.) are disassembled, then
replace the seal ring with a new one. Failure to do so
may cause leakage in the fuel filter connections
preventing normal functioning.
FUEL INJECTION NOZZLE
•
The injectors are designed to spray the fuel delivered
by the injection pump directly into the spherical
combustion chamber in the piston crown.
•
The injector consists of the nozzle and the nozzle
holder.
1. Nozzle holder
2. Union nut
3. Shim
4. Coil spring
5. Guide bush
6. Washer
7. Cap nut
8. Nozzle
CHECK FUEL INJECTION NOZZLE PRESSURE
1. Install a nozzle to the nozzle tester.
2. Check injection pressure by cranking to meet the
correct pressure.
3. Check the nozzle spray status. If it is defective,
replace the nozzle.
CAUTION
As the injection nozzle is designed to operate under
high pressure, it should be handled with care.
Always keep hands away from the fuel jet, as there is
a risk of injury. Do not inhale the atomized fuel oil. If
possible, work under an extraction system.
EFM2054I
DV2213023A
DV2213024A
normal
abnormal
abnormal