Kubota B2301 Workshop Manual

ENGINE
B2301, B2601, WSM
1-S14
(2) Lubricating System
Engine Oil Pressure
1. Remove the engine oil pressure switch, and set an oil pressure
tester.
2. Start the engine. After warming up, measure the oil pressure of
both idling and rated speeds.
3. If the oil pressure is less than the allowable limit, check the
following.
• Engine oil insufficient
• Oil pump damaged
• Oil strainer clogged
• Oil filter cartridge clogged
• Oil gallery clogged
• Excessive oil clearance
• Foreign matter in the relief valve
(When reassembling)
• After checking the engine oil pressure, tighten the engine oil
pressure switch to the specified torque.
9Y1211156ENS0008US0
(3) Cooling System
Fan Belt Tension
1. Measure the deflection (A), depressing the belt halfway
between the fan drive pulley and dynamo pulley at specified
force (98 N, 10 kgf, 22 lbf).
2. If the measurement is not within the factory specifications,
loosen the dynamo mounting screws and relocate the dynamo
to adjust.
9Y1211156ENS0009US0
Engine oil pressure
At idle
speed
Allowable
limit
49 kPa
0.5 kgf/cm
2
7 psi
At rated
speed
Factory
specifica-
tion
196 to 441 kPa
2.0 to 4.5 kgf/cm
2
28.5 to 64 psi
Allowable
limit
147 kPa
1.5 kgf/cm
2
21.3 psi
Tightening torque Oil pressure switch
15 to 19 N·m
1.5 to 2.0 kgf·m
11 to 14 lbf·ft
Deflection (A) Factory specification
7.0 to 9.0 mm
0.28 to 0.35 in.
KiSC issued 11, 2014 A

Kubota B2301 Specifications

General

Engine Type	Diesel
Transmission Type	Hydrostatic
Type	Compact Utility Tractor
Drive	4WD
3-Point Hitch Category	Category I
Fuel Capacity	6.1 gallons
Hydraulic System Capacity	3.7 gallons