Introduction, Oil pump service information, Lubrication system – Cub Cadet Yanmar 3TNV72 User Manual

Page 206

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LUBRICATION SYSTEM

TNV IDI Service Manual

9-5

Introduction

INTRODUCTION

This section of the Service Manual describes the procedures necessary to service the 2TNV70, 3TNV70
and 3TNV76 trochoid oil pumps.

Note: See Replace Engine Oil and Engine Oil Filter on page 5-26 for engine oil and engine oil filter

replacement procedures.

OIL PUMP SERVICE INFORMATION

Engine Oil Pressure

Outer Rotor Outside Clearance

Outer Rotor Side Clearance

Outer Rotor to Inner Rotor Tip
Clearance

Model

at Rated Engine rpm

at Low Idle Speed

3TNV72

42 - 64 psi (0.29 - 0.44 MPa 2.96 - 4.49

kgf/cm

2

)

8.8 psi (0.06 MPa; 0.6 kfg/cm

2

) or greater

Model

Standard

Limit

Reference

Page

3TNV72

0.0047 - 0.0083 in.

(0.12 - 0.21 mm)

0.0118 in.

(0.30 mm)

Check Outer

Rotor Outside

Clearance on

page 9-10

Model

Standard

Limit

Reference

Page

3TNV72

0.0008 - 0.0028 in.

(0.02 - 0.07 mm)

0.0047 in.

(0.12 mm)

Check Outer

Rotor Side

Clearance on

page 9-10

Model

Standard

Limit

Reference

Page

3TNV72

-

0.0063 in.

(0.16 mm)

Outer Rotor to

Inner Rotor Tip

Clearance on

page 9-10

TNV_IDI_ServiceManual_(3TNV72 for YN only).book 5 ページ 2007年11月29日 木曜日 午後2時58分

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