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Kubota B2910 User Manual

Kubota B2910
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82410 •
82710
• 82910 WSM, 12271
00000F10120
1 ENGINE
Free Length and Tilt of Valve Spring
1.
Measure the free length
(A)
of valve spring with vernier calipers.
If
the measurement
is
less than the allowable limit, replace
it.
2.
Put the valve spring on a surface plate, place a square
on
the
side of the valve spring.
3.
Check to see if the entire side
is
in
contact with the square.
Rotate the valve spring and measure the maximum tilt (B).
If
the measurement exceeds the allowable limit, replace
it.
Check the entire surface of the valve spring for scratches.
If
there
is
any defect, replace
it.
Factory spec.
37.0 to 37.5 mm
1.457 to 1.476 in.
Free length (A)
Allowable limit
36.5 mm
1.437 in.
I
I
1.0 mm
'-
_Ti_llt_(_B_)
A_lIo_w_a_b_le_li_m_it
__
----<
----'
..
0.039 in.
00000510081
00000F10130
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.
117.6
N/31.0mm
Factory spec.
12.0 kgf
/31.0
mm
Setting load /
26.4 Ibs / 1.220 in.
Setting length
100.0 N
/31.0
mm
Allowable limit
10.2
kgf/
31.0 mm
22.5 Ibs / 1.220 in.
00000F10140
00000510091
Oil Clearance between Rocker Arm and Rocker Arm Shaft
1.
Measure the rocker arm shaft
0.0.
with an outside micrometer.
2. Measure the rocker arm
1.0.
with an inside micrometer, and then
calculate the oil clearance.
3.
If
the oil 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.
0.016 to 0.045 mm
Oil clearance between
0.00063 to 0.00177 in.
rocker arm and rocker
arm shaft
Allowable limit
0.10 mm
0.0039 in.
Rocker arm shaft
0.0.
Factory spec.
11.973 to 11.984 mm
0.47138
to
0.47181 in.
Rocker arm
1.0. Factory spec.
12.000 to 12.018
mm
0.47244 to 0.47315 in.
00000510101
1-835

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Kubota B2910 Specifications

General IconGeneral
Fuel TypeDiesel
Transmission TypeHydrostatic
Hydraulic SystemOpen center
3-Point HitchCategory I
Lift Capacity1, 323 lbs (600 kg)
Drive4WD
Engine TypeDiesel, 4-cycle, liquid-cooled
Horsepower30 hp
Number of GearsInfinite (3 ranges)
Wheelbase63 inches
PTO Horsepower22 hp

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