Kubota WG972-E2 Workshop Manual page 34

WG972-E2, DF972-E2, WSM
Checking Primary Chamber (Vaporizer for LPG Fuel)
■
IMPORTANT
• When checking the fuel system after completely consuming
the fuel in piping.
• Treat a seal tape or liquid gasket when install each
connector.
1. Run the engine until is warmed up.
2. The shut off valve is shut and the engine is stopped naturally.
3. Disconnect the plug (1).
4. Set the pressure gauge (2).
5. The shut off valve is opened and the engine is started, and check
the pressure.
6. If the pressure is not within the factory specification, replace the
vaporizer.
Pressure Factory spec.
(1) Plug
Checking Air Tight of Secondary Chamber (Vaporizer for LPG
Fuel)
1. Disconnect the vapor hose (1) on the mixer side.
2. Breath is blown lightly or compressed air (9.8 kPa, 0.1 kgf/cm
1.4 psi).
3. It is confirmed that the air does not leak.
4. If there is a leakage, replace the vaporizer.
(1) Vapor Hose
Checking Vacuum Lock System
1. After warming up, and set the low idling speed.
5. Disconnect the vacuum lock hose (1), and close the joint
manifold by finger.
6. Confirm the thing that the engine stops.
(1) Vacuum Lock Hose
G-20
G GENERAL
30.0 to 34.3 MPa
0.30 to 0.35 kgf/cm
4.4 to 4.9 psi
(2) Pressure Gauge
W1024942
W10412390
(2) Joint
W10413080
2
2
KiSC issued 01, 2006 A