Kubota MX5100, Workshop Manual

Page: 103 / 454

1-S11
MX5100, WSM ENGINE
LUBRICATING SYSTEM
W1120963
COOLING SYSTEM
W1122456
Item Factory Specification Allowable Limit
Engine Oil Pressure At Idle Speed
At Rated Speed
More than 98 kPa
1.0 kgf/cm
2
14 psi
300 to 440 kPa
3.0 to 4.5 kgf/cm
2
43 to 64 psi
50 kPa
0.5 kgf/cm
2
7 psi
250 kPa
2.5 kgf/cm
2
36 psi
Engine Oil Pressure Switch Working
Pressure 50 kPa
0.5 kgf/cm
2
7 psi
–
Inner Rotor to Outer Rotor Clearance 0.030 to 0.14 mm
0.0012 to 0.0055 in.
0.2 mm
0.008 in.
Outer Rotor to Pump Body Clearance 0.11 to 0.19 mm
0.0044 to 0.0074 in.
0.25 mm
0.0098 in.
Inner Rotor to Cover Clearance 0.105 to 0.150 mm
0.00414 to 0.00590 in.
0.20 mm
0.008 in.
Fan Belt Tension 12 mm (0.48 in.)
deflection at
98 N (10 kgf, 22 lbf) of
force
–
Thermostat Valve Opening
Temperature
(At Beginning)
Valve Opening
Temperature
(Opened
Completely)
69.5 to 72.5 °C
157.1 to 162.5 °F
85 °C
185 °F
–
–
Radiator Water Tightness No leak at
specified pressure
–
Radiator Cap Pressure Falling
Time More than 10 seconds
for pressure fall
from 90 to 60 kPa
from 0.9 to 0.6 kgf/cm
2
from 10 to 9 psi
–