Kubota EA330-E4 Series Workshop Manual page 92

EA330-E4, WSM
Nozzle Heat Seal Service Removal Procedure
IMPORTANT
• Use a plus (phillips head) screw driver that has a Dia. which
is bigger than the heat seal hole (Approx. 6 mm (1/4 in.).
1. Drive screw driver lightly into the heat seal hole.
2. Turn screw driver three or four times each way.
3. While turning the screw driver, slowly pull the heat seal out
together with the injection nozzle gasket.
If the heat seal drops, repeat the above procedure. Heat seal
and injection nozzle gasket must be changed when the injection
nozzle is removed for cleaning or for service.
(1) Plus Screw Driver
(2) Injection Nozzle
Nozzle Holder
1. Secure the nozzle retaining nut (7) with a vise.
2. Remove the nozzle holder (1), and take out parts inside.
(When reassembling)
• Assemble the nozzle in clean fuel oil.
• Install the push rod (4), noting its direction.
• After assembling the nozzle, be sure to adjust the fuel injection
pressure.
Nozzle holder
Tightening torque
Nozzle holder assembly
(1) Nozzle Holder
(2) Adjusting Washer
(3) Nozzle Spring
(4) Push Rod
Cylinder Head Cover
1. Remove the cylinder head cover (1).
(When reassembling)
• After reassembling the head cover, adjust decompression
device.
Tightening torque Head cover mounting nut
(1) Cylinder Head Cover
1-S27
ENGINE
(3) Injection Nozzle Gasket
(4) Heat Seal
9Y1211018ENS0033US0
35 to 39 N·m
3.5 to 4.0 kgf·m
26 to 28 lbf·ft
49 to 68 N·m
5.0 to 7.0 kgf·m
37 to 50 lbf·ft
(5) Distance Piece
(6) Nozzle Piece
(7) Nozzle Retaining Nut
9Y1211018ENS0034US0
9.8 to 10 N·m
1.0 to 1.1 kgf·m
7.3 to 7.9 lbf·ft
9Y1211018ENS0035US0
KiSC issued 05, 2015 A