Kubota WSM L3560, Workshop Manual

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ENGINE
L3560, L4060, L4760, L5060, L5460, L6060, WSM
1-S93
[6] OIL PUMP
Rotor Lobe Clearance
1. Measure the clearance between the lobes of the inner rotor and
the outer rotor with a feeler gauge.
2. Measure the clearance between the outer rotor and the pump
body with a feeler gauge.
3. If the clearance is more than the allowable limit, replace the
rotor assembly of the oil pump.
9Y1210824ENS0106US0
Clearance between Rotor and Cover
1. Put a strip of plastigauge on the rotor face with grease.
2. Install the cover and tighten the screws.
3. Remove the cover carefully.
4. Measure the width that plastigauge becomes flat with the scale
to get the oil clearance.
5. If the clearance is more than the allowable limit, replace the
rotor assembly of the oil pump.
9Y1210824ENS0107US0
Clearance between inner
rotor and outer rotor
Factory specification
0.030 to 0.14 mm
0.0012 to 0.0055 in.
Allowable limit
0.2 mm
0.008 in.
Clearance between outer
rotor and pump body
Factory specification
0.11 to 0.19 mm
0.0044 to 0.0074 in.
Allowable limit
0.25 mm
0.0098 in.
Clearance between inner
rotor and cover
Factory specification
0.105 to 0.150 mm
0.00414 to 0.00590 in.
Allowable limit
0.20 mm
0.008 in.
KiSC issued 03, 2016 A