48
17-04-2003
01
15-01-2004
DATE
COMPILER TECO/ATI
REG. CODE
1-5302-584
MODEL N°
50871
DATE OF ISSUE
REVISION
ENDORSED
88 89
84
85
86 87
IX
Oil pump
Components:
1 Cover
2 Shaft
3 Key
4 Pin
5 Internal rotor
6 External rotor
Oil pump delivery at 3000 rpm is 5.8 l/min.
Oil pump - Clearance between rotors
Measure clearance as shown in the figure; the max. value is 0.13
mm; wear limit 0.25 mm.
Oil pressure regulation valve
Components for RY 70-75:
1 Spring 2 Valve 3 Plug
Free length A of the spring is 27.50-27.75 mm.
Components for RY 50:
4 Ball 5 Spring 6 Plug
Free length A of the spring is 23.50-24.50 mm.
Components for RY 103-110:
7 Plunger 8 Spring 9 Washer
10 Cup 11 Snap ring
Free length A of the spring is 25,50÷25,75 mm.
Note: If A is 1 mm less than the given value, replace the valve.
Valve setting is not adjustable.
Internal strainer
The oil pick-up strainer is made of nylon 66. Its degree of filtration is
500 µm.
Dimensions (mm):
A = M16x1.5
B = 64
C = 102
D = 12
LUBRICATION SYSTEM
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