Kubota B1620 Workshop Manual

ENGINE
B1220, B1620, B1820, WSM
1-S12
(EU)
(2) Lubricating System
Engine Oil Pressure
1. Remove the engine oil pressure switch, and set a oil pressure
tester (Code No. 07916-32032). (Adapter screw size : PT 1/8)
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 defective
• 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.
9Y1210272ENS0016US0
Engine oil pressure
Factory
specifica-
tion
At idle
speed
More than
49 kPa
0.50 kgf/cm
2
7.1 psi
At rated
speed
197 to 441 kPa
2.00 to 4.50 kgf/cm
2
28.5 to 64.0 psi
Allowable
limit
Factory
specifi-
cation
147 kPa
1.50 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
KiSC issued 07, 2011 A

Kubota B1620 Specifications

General

Engine Type	Diesel
Cylinders	3
Fuel Type	Diesel
Hydraulic System Type	Open center
Drive	4WD
3-Point Hitch Category	Category I