Checking And Adjusting Lubricating System; Engine Oil Pressure Check; Checking And Adjusting Cooling System; Fan Belt Tension Check - Kubota KX080-3 Workshop Manual

WSM KX080-3 Service
(2) Lubricating System
(3) Cooling System
Engine Oil Pressure
1. Remove the oil switch and set a pressure tester (Code No.
07916-32032).
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.
At idle
speed
Engine oil pressure
At rated
speed
Tightening torque Oil switch taper screw
Fan Belt Tension
1. Measure the deflection (A), depressing the belt halfway between
the fan drive pulley and alternator pulley at specified force 98 N
(10 kgf, 22 lbs).
2. If the measurement is not within the factory specifications,
loosen the alternator mounting screws and relocate the
alternator to adjust.
Deflection (A) Factory spec.
(A) Deflection
III-S-105
49 kPa
Allowable
2
0.5 kgf/cm
limit
7 psi
196 to 392 kPa
Factory
2
2.0 to 4.0 kgf/cm
spec.
28 to 57 psi
147.1 kPa
Allowable
2
1.5 kgf/cm
limit
21.3 psi
14.7 to 19.6 N·m
1.5 to 2.0 kgf·m
10.8 to 14.5 ft-lbs
W10349520
10 to 12 mm
0.394 to 0.472 in.
W1021011
Engine