wsm L4701 User Manual

ENGINE
L3301, L3901, L4701, WSM
1-S79
[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.
9Y1211012ENS0109US0
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.
9Y1211012ENS0110US0
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 09, 2016 A

wsm L4701 Specifications

General

Brand	wsm
Model	L4701
Category	Tractor
Language	English