Kubota M5040 Workshop Manual page 182

M5040, M6040, M7040, WSM
Valve Spring Setting Load
1. Place the valve spring on a tester and compress it to the same
length it is actually compressed in the engine.
2. Read the compression load on the gauge.
3. If the measurement is less than the allowable limit, replace it.
Factory spec.
Setting load / setting
length
Allowable limit
Oil Clearance between Rocker Arm Shaft and Bearing
1. Measure the rocker arm bearing I.D. with an inside micrometer.
2. Measure the rocker arm shaft O.D. with an outside micrometer,
and then calculate the oil clearance.
3. If the clearance exceeds the allowable limit, replace the rocker
arm and measure the oil clearance again. If it still exceeds the
allowable limit, replace also the rocker arm shaft.
Factory spec.
Oil clearance of rocker
arm shaft and bearing
Allowable limit
Rocker arm shaft O.D. Factory spec.
Rocker arm I.D. for shaft Factory spec.
Oil Clearance between Bridge Arm and Bridge Arm Shaft
1. Measure the bridge arm (1) I.D. with an inside micrometer.
2. Measure the bridge arm shaft O.D. with an outside micrometer,
and then calculate the oil clearance.
3. If the clearance exceeds the allowable limit, replace the bridge
arm (1) and measure the oil clearance again. If it still exceeds
the allowable limit, replace also the bridge arm shaft.
Factory spec.
Oil clearance between
bridge arm and bridge
arm shaft
Allowable limit
Bridge arm shaft O.D. Factory spec.
Bridge arm I.D. Factory spec.
(1) Bridge Arm
1-S56
ENGINE
63.547 N / 31.5 mm
6.48 kgf / 31.5 mm
14.256 lbf / 1.2401 in.
45.864 N / 31.5 mm
4.68 kgf / 31.5 mm
10.296 lbf / 1.2401 in.
W1063470
0.016 to 0.045 mm
0.0006 to 0.0018 in.
0.15 mm
0.0059 in.
14.973 to 14.984 mm
0.5895 to 0.5899 in.
15.000 to 15.018 mm
0.5906 to 0.5913 in.
W1063697
0.018 to 0.042 mm
0.0007 to 0.0017 in.
0.15 mm
0.0059 in.
9.023 to 9.032 mm
0.3552 to 0.3556 in.
9.050 to 9.065 mm
0.3563 to 0.3569 in.
W1042581
KiSC issued 06, 2008 A