Engine Oil Pressure; Lubricating System; Checking - Kubota D1503-M-DI Workshop Manual

03-M-DI Series, WSM

3. LUBRICATING SYSTEM

[1] Checking

Engine Oil Pressure

1. Remove the engine oil pressure switch, and set a oil 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
At idle
speed
Engine oil pressure
At rated
speed
(When reassembling)
• After checking the engine oil pressure, tighten the engine oil
pressure switch to the specified torque.
S-81
DIESEL ENGINE
49 kPa
Allowable
2
0.5 kgf/cm
limit
7 psi
294.2 to 441 kPa
Factory
2
3.0 to 4.5 kgf/cm
spec.
42.7 to 64 psi
245 kPa
Allowable
2
2.5 kgf/cm
limit
36 psi
KiSC issued 10, 2009 A
W1034952