Injection Nozzle - Kubota L2800 Workshop Manual

L2800, L3400, WSM

(8) Injection Nozzle

CAUTION
• Check the nozzle injection pressure and condition after confirming that there is nobody standing in the
direction the fume goes. If the fume from the nozzle directly contacts the human body, cells may be
destroyed and blood poisoning may be caused.
Tractor Manuals Scotland
Nozzle Injection Pressure
1. Set the injection nozzle to a nozzle tester.
2. Slowly move the tester handle to measure the pressure at which
fuel begins jetting out from the nozzle.
3. If the measurement is not within the factory specifications,
replace the injection nozzle assembly.
Fuel injection pressure
(1) Adjusting Washer
Nozzle Spraying Condition
1. Set the injection nozzle to a nozzle tester, and check the nozzle
spraying condition.
2. If the spraying condition is defective, replace the nozzle piece.
(a) Good
Valve Seat Tightness
1. Set the injection nozzle to a nozzle tester (Code No. 07909-
31361).
2. Raise the fuel pressure, and keep at 12.75 MPa (130 kgf/cm
1849 psi) for 10 seconds.
3. If any fuel leak is found, replace the nozzle piece.
Valve seat tightness
Tractor Manuals Scotland - Please Do Not Copy
1-S18
13.73 to 14.71 MPa
Factory spec. 140 to 150 kgf/cm
1991 to 2133 psi
(b) Bad
No fuel leak at
12.75 MPa
Factory spec.
130 kgf/cm
1849 psi
ENGINE
2
W1037197
W1037394
2
,
2
W1088949
KiSC issued 08, 2007 A