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3-3
HYDRAULIC CIRCUIT
HYDRAULIC CIRCUIT (5-speed transmission)
K4
KR
K1
K3
KV
K2
P1
P2
P3
P4
P5
P6
B
D
NFS
Y1
Oil sump
Pump
Filter
Lubrication
Oil cooler
Converter
Back
pressure
valve
Relief
valve
System
pressure
valve
Pressure
reducing
valve
Temp
sensor
Main oil circuit
Valve block control circuit
B
D
NFS
Y2
B
D
NFS
Y3
B
D
NFS
Y4
B
D
NFS
Y5
B
D
NFS
Y6
16+2 bar
4.3+3 bar
11+2 bar
16+2 bar
9+0.5 bar
F
60
A
57
B
53
C
58
D
56
E
55
Filter pressure
differential valve
Converter lock-up
clutch valve
Converter lock-up clutch
X : Pressure regulator under voltage
NFS
Follow-on
slide
D
Vibration
damper
B
Orifice
P1
Proportional valve clutch K4
P2
Proportional valve clutch KR
P3
Proportional valve clutch K1
P4
Proportional valve clutch K3
P5
Proportional valve clutch KV
P6
Proportional valve clutch K2
Y1~Y6
Pressure
regulator
7609A3PT18
Speed
Forward
Reverse
Neutral
Engaged
clutch
Positions
on the
valve block
Current
No. of the
measuring
points
1
2
3
4
5
1
2
3
Y1
X
X
K4
F
60
Y2
X
X
X
KR
E
55
Y3
X
X
K1
D
56
Y4
X
X
X
K3
C
58
Y5
X
X
X
KV
B
53
Y6 X
X
X
K2
A
57
Engaged
clutch
K1,KV KV,K2 K2,K4 KV,K3 K3,K4 KR,K1 KR,K2 KR,K3
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Summary of Contents for HL955
Page 557: ...7 6 MEMORANDUM MEMORANDUM ...