II-159
WSM Minor Change
II Service Engineering Section
f. Main component’s function
(1)Auto release function
1. Auto release Circuit diagram & function
1) Function chart
When in normal operation
When the key switch is returned after the engine got started, the release relay functions as shown
below upon engine speed.
2) If the engine has started but the key switch fails to return (key switch failure)
Suppose that the key switch fails to return and the key switch start signal stays on. But if the engine
speed sensor signal is fed, the automatic release control system regulates the transistor's base cur-
rent flow, which turns on the release relay solenoid ON or OFF.
Engine speed
Auto release relay (T
1
, T
2
)
KX41-3
KX61-3SS ~ 161-3SS
1000
N
x
800
N
x
ON
1001 ~ 1150
801 ~ 950
ON (Within 6 seconds)
OFF (After 6 seconds)
1151 N
x
951 N
x
ON (Within 0.5 seconds)
OFF (After 0.5 seconds)
Key SW
OFF
Key ON
Auto release relay
Engine speed sensor
controller
Start
Is the key switch set at "START"
longer than 30 seconds?
Has the engine started?
Automatic release
control system
(Starter relay)
NO - type
a.Key switch start signal
b.Engine speed sensor signal
c.Release relay solenoid
About T
1
sec
=
>
=
>
=
>
=
>
a.Key switch start signal
b.Engine speed sensor signal
c.Release relay solenoid
Switch turned off
T
2
sec
Summary of Contents for KX101-3a
Page 68: ...II 57 WSM Minor Change II Service Engineering Section...
Page 72: ...II 60 WSM Minor Change II Service Engineering Section 7 7 1 1 72548...
Page 74: ...II 62 WSM Minor Change II Service Engineering Section...
Page 75: ...II 63 WSM Minor Change II Service Engineering Section c Control valve 1 PP version KX161 3S...
Page 76: ...II 64 WSM Minor Change II Service Engineering Section 2 EU KTA version KX161 3D S...
Page 77: ...II 65 WSM Minor Change II Service Engineering Section 3 Third line version EU KTA KX161 3D S...
Page 83: ...II 71 WSM Minor Change II Service Engineering Section...
Page 86: ...II 74 WSM Minor Change II Service Engineering Section 2 Pilot control line EU version KX161 3D...
Page 87: ...II 75 WSM Minor Change II Service Engineering Section 3 Pilot delivery line KX161 3S...
Page 90: ...II 78 WSM Minor Change II Service Engineering Section 6 Delivery hose KX91 3S U35S U35 3S KTA...
Page 91: ...II 79 WSM Minor Change II Service Engineering Section...
Page 95: ...II 83 WSM Minor Change II Service Engineering Section 2 S P valve...
Page 96: ...II 84 WSM Minor Change II Service Engineering Section 3 Heat up circuit...
Page 104: ...II 92 WSM Minor Change II Service Engineering Section...
Page 105: ...II 93 WSM Minor Change II Service Engineering Section 1 KX91 3S KTC version...
Page 106: ...II 94 WSM Minor Change II Service Engineering Section 2 KX91 3S KCL KTA version...
Page 107: ...II 95 WSM Minor Change II Service Engineering Section 3 KX91 3D EU version...
Page 108: ...II 96 WSM Minor Change II Service Engineering Section 4 KX101 3D EU version...
Page 109: ...II 97 WSM Minor Change II Service Engineering Section 5 U35S KTC version...
Page 110: ...II 98 WSM Minor Change II Service Engineering Section 6 U35 3S KTA version U35S KCL version...
Page 111: ...II 99 WSM Minor Change II Service Engineering Section 7 U35 3D EU version...
Page 112: ...II 100 WSM Minor Change II Service Engineering Section 8 KX121 3S KTC KCL version...
Page 113: ...II 101 WSM Minor Change II Service Engineering Section 9 KX121 3S KTA version...
Page 114: ...II 102 WSM Minor Change II Service Engineering Section 10 KX121 3D EU version...
Page 115: ...II 103 WSM Minor Change II Service Engineering Section 11 KX161 3S KTC KCL KTA version...
Page 116: ...II 104 WSM Minor Change II Service Engineering Section 12 KX161 3D EU version...
Page 117: ...II 105 WSM Minor Change II Service Engineering Section 13 U45 3S KTA version...
Page 118: ...II 106 WSM Minor Change II Service Engineering Section 14 U45 3D EU version...
Page 124: ...II 112 WSM Minor Change II Service Engineering Section QFGN 8 5 6T 25 DG...
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Page 173: ...II 161 WSM Minor Change II Service Engineering Section 3 Operational flow chart 3 1...
Page 174: ...II 162 WSM Minor Change II Service Engineering Section 3 2...
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Page 201: ...II 189 WSM Minor Change II Service Engineering Section 2 KX91 3S U35S U35 3S PP version...
Page 202: ...II 190 WSM Minor Change II Service Engineering Section 3 KX91 3D 101 3D U35 3D EU version...
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