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Kubota D1803-CR-E4 - Installing Suction Control Valve (SCV); Installing Supply Pump

Kubota D1803-CR-E4
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3. Tight the oil filter cartridge (5) by hand.
NOTE
Apply the
engine oil to O-ring of oil filter
cartridge (5).
(5) Oil filter cartridge
6.23 Installing supply pump
NOTE
Do not disassemble the supply pump.
When attaching the supply pump to crankcase,
do not put force on the SCV and overflow
sections of the part.
Do not remove the dust protection cap until
immediately before you attach the part.
1. Install the supply pump (1) and tighten the supply
pump mounting nut / screw to the specified torque.
Tightening tor-
que
Supply pump
mounting nut /
screw
23.5 to 27.5 Nm
2.40 to 2.80 kgfm
17.4 to 20.2 lbfft
(1) Supply pump
2. Install the fuel feed pump (2).
(2) Fuel feed pump
6.24 Installing suction control valve
(SCV)
NOTE
Replace the O-ring of SCV with a new one.
T
ools required
Silicon grease
Hexagon wrench (4 mm-square)
1. Install the O-ring to SCV (1).
NOTE
Apply clean
silicon grease on the O-ring of
the SCV tip.
2. Install the SCV until it hits the supply pump housing
and tighten to the specified torque with hexagon
wrench.
NOTE
Turn
the SCV (1) carefully, and prevent the
SCV from jamming the O-ring.
Tightening tor-
que
SCV mounting
screw (2)
5.0 to 7.0 Nm
0.51 to 0.71 kgfm
3.7 to 5.1 lbfft
(1) SCV (2) SCV mounting screw
4. ENGINE
SERVICING
6. Assembling
4-148
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
KiSC issued 12, 2018 A

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