Kubota B2910 User Manual

1 ENGINE
12010P10470
1201
OP1 0470
82410· 82710· 82910 WSM, 12271
Fuel Tightness of Pump Element
1. Remove the engine stop solenoid.
2. Remove the injection pipes and glow plugs.
3. Install the injection pump pressure tester to the injection pump.
4. 8et the speed control lever to the maximum speed position.
5. Turn the flywheel ten times or more to increase the pressure.
6. If the pressure can not reach the allowable limit, replace the
pump element or injection pump assembly.
Fuel tightness of pump
14.7 MPa
Allowable limit
150 kgf/cm
2
element
2133 psi
• NOTE
• Apply a liquid gasket (Three Bond 1215 or equivalent) to
both sides of the solenoid cover gasket.
12270810510
Fuel Tightness of Delivery Valve
1. Remove the engine stop solenoid.
2. Remove the injection pipes and glow plugs.
3. Set a pressure tester to the fuel injection pump.
4. Turn the flywheel and raise the pressure to approx. 14.7 MPa
(150 kgf/cm
2
,
2133 psi).
5. Now turn the flywheel back about half a turn (to keep the plunger
free). Maintain the flywheel at this position and clock the time
taken for the pressure to drop from 14.7 to 13.7 MPa (from 150
to 140 kgf/cm
2
,
from 2133 to 1990 psi).
6. Measure the time needed to decrease the pressure from 14.7 to
13.7 MPa (from 150 to 140 kgflcm
2
, from 2133 to 1990 psi).
7. If the measurement is less than allowable limit, replace the
delivery valve.
5 seconds
Fuel tightness of delivery
Allowable limit
14.7
-+ 13.7 MPa
valve
150
-+ 140 kgf/cm
2
2133 -+ 1990 psi
• NOTE
• Apply a liquid gasket (Three Bond 1215 or equivalent) to
both sides of the solenoid cover gasket.
12270810520
1-854

Kubota B2910 Specifications

General

Fuel Type	Diesel
Transmission Type	Hydrostatic
Hydraulic System	Open center
3-Point Hitch	Category I
Lift Capacity	1, 323 lbs (600 kg)
Drive	4WD
Engine Type	Diesel, 4-cycle, liquid-cooled
Horsepower	30 hp
Number of Gears	Infinite (3 ranges)
Wheelbase	63 inches
PTO Horsepower	22 hp