Pto Switch Circuit - Test - Perkins 1106D Troubleshooting Manual

SENR9982
C. Reconnect the P1 OEM connector.
D. Turn the keyswitch to the ON position. Monitor the
status screen of the Perkins EST.
E. Disconnect the P1 OEM connector from J1.
F. Insert a jumper wire between the suspect switch
socket and P1:35.
G. Turn the keyswitch to the ON position. Monitor the
status screen of the Perkins EST.
Expected Result:
When the connections are removed from the P1
OEM connector, the mode switch indication on the
Perkins EST will be in the OFF position. The switch
will indicate an open condition.
When the jumper is connected to the P1 OEM
connector, the mode switch indication on the Perkins
EST will be in the ON position. The switch will
indicate a closed condition.
Results:
•
OK – The ECM is operating correctly. STOP.
•
Not OK
Repair: If the fault has not been eliminated
temporarily connect a test ECM. Remove all
jumpers and replace all connectors. The test ECM
should be programmed with the correct software.
All parameters should be set to the same value of
the suspect ECM.
If the fault is eliminated with the test ECM,
reconnect the suspect ECM. If the fault returns with
the suspect ECM, replace the suspect ECM.
Verify that the repair has eliminated the fault.
STOP.

PTO Switch Circuit - Test

System Operation Description:
Use this procedure under the following circumstances:
•
Verify that the PTO switches receive the correct
supply voltage.
•
Check that the PTO switches operate correctly.
Note: Some applications may only have one PTO
switch.
Also, use this procedure if another procedure has
directed you here.
The PTO switches provide the operator with the
ability to select the desired engine speed. Engine
speed will decrease with increasing load. The PTO
switches can be used to control the engine speed.
The engine has the following options of set speed
control:
•
Single speed
•
No speed (no PTO control)
The PTO switches are listed below:
•
P1 OEM connector: 52 PTO Control ON or P1
•
P1 OEM connector: 50 PTO Raise/Resume
•
P1 OEM connector: 51 PTO Set or Lower
•
P1 OEM connector: 49 (Clutch or Brake) PTO
Disengage Switches
An indicator lamp is used to indicate the status of
the PTO.
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Troubleshooting Section