Introduction, Oil pump service information, Lubrication system – Cub Cadet Yanmar 3TNV72 User Manual
Page 206

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