Kubota WSM J Series Workshop Manual page 72

J SERIES, WSM
(C) Cooling System
Thermostat
Radiator
Radiator Cap
Fan Belt
(D) Fuel System
Injection Pump
Pump Element
Delivery Valve
Fuel Injection Nozzle
Fuel Injection Nozzle Valve Seat
Item
Valve Opening
Temperature
(At Begining)
Valve Opening
Temperature
(Opened
Completely)
Water Leakage
Test Pressure
Pressure Falling
Time
Tension
Injection Timing
Fuel Tightness
Fuel Tightness
Injection Pressure
Fuel Tightness
S-26
Factory Specification
69.5 to 72.5 C
157 to 163 F
85 C
185 F
No leaks at
specified pressure
137 kPa
2
1.4 kgf/cm , 20 psi
10 seconds or more
88  59 kPa
2
0.9  0.6 kgf/cm
13  9 psi
7.0 to 9.0 mm / 98 N
0.28 to 0.35 in. /
98 N (10kgf, 22 lbs)
Z482
0.36 to 0.40 rad.
20.5 to 22.5
before T.D.C.
D722
0.35 to 0.39 rad.
20 to 22
before T.D.C.
–
–
13.7 to 14.7 MPa
2
140 to 150 kgf/cm
1990 to 2130 psi
When the pressure is
12.7 MPa
2
(130 kgf/cm , 1850 psi),
the valve seat must be
fuel tightness
GENERAL
Allowable Limit
–
–
–
–
–
W10208100
–
–
14.7 MPa
2
150 kgf/cm
2130 psi
5 seconds
14.713.7 MPa
2
150140 kgf/cm
21301990 psi
–
–
W10212630
KiSC issued 10, 2016 A