1997 SSANGYONG KORANDO engine control unit

OM600 ENGINE CONTROLS 1F3 -- 15
D AEW OO M Y_2000
IDLE SPEED ADJUSTMENT
Service Data
EngineIdle Speed
OM661LA Engine750 -- 850 rpm
OM662LA Engine720 -- 820 rpm
Tools Required
667 589 00 21 00 TDC Pulse Generato
Commercial Tool
Digital Testere.g. Bosch, MOT 001.03g
Sun, DIT 9000
Adjustment Procedure
1. Connect the digital tester (1) and TDC pulse sender
unit (11).
2. Run the engine and warm up the coolant to
60~80_C.
TDC pulse generator 667 589 02 21 00
3. Disconnect the vacuum hose (4) from the PLA unit
to check idle speed with tester.
4. Check idle speed with tester.
OM 661LA Engine750 -- 850rpm
OM 662LA Engine720 -- 820rpm
Notice
To adjust idle speed, loosen the locking nut (6) of
PLA unit.

1F3 -- 16 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
5. Ensure not to damage the idle spring in the governor
and adjust idle speed by turning the PLA unit (5)
slowly.
ClockwiseRPM Decrease
CounterclockwiseRPM Increase
Notice
Do not rotate the PLA unit over 1/2 turn from the
position marking. If do, idle spring in the governor
will be severely damaged.
6. After adjustment, tighten the locking nut and place
the position marking with different color of paint.
Notice
If there are no changes in idle speed with PLA unit
adjustment, perform the service at a BOSCH Ser-
vice Center.
7. Connect the vacuum pump to the PLA vacuum unit
and build up vacuum approx. 500mbar. If engine
rpm increases by approx. 100rpm, It is normal.
Vacuum Pump 001 589 73 21 00
8. Connect the vacuum line (4).
9. Switch on all ancillaries and check the idle speed.

OM600 ENGINE CONTROLS 1F3 -- 17
D AEW OO M Y_2000
FUEL PUMP TEST
Notice
Before test, replace the fuel filter cartridge and fuel pre-
filter.
Fuel Feed Test
1. Disconnect the fuel return line (1) and seal up it with
plug.
2. Insert the plastic hose (5) and put the end into the
measuring beaker (6).
3. Disconnect the vacuum line (4) from vacuum unit
(engine stop) (5) and connect the vacuum pump (7)
to the vacuum unit.
4. To avoid the engine starting, build up vacuum
(approx. 500 mbar).
5. Operate the starter motor for exactly 30 seconds
and measure fuel volume in the beaker.
Min. volume150cm3for 30 seconds

1F3 -- 38 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
Digital Tester, RIV Method
(Connection Diagram for Testers Without Adapter)
1 Fuel Injection Pump
2 Rl Sensor
3 Digital Tester4 TDC Pulse Sender Unit
5 Battery

OM600 ENGINE CONTROLS 1F3 -- 39
D AEW OO M Y_2000
(Connection Diagram for Testers With Adapter)
1 Fuel Injection Pump
2 Rl Sensor
3 Digital Tester4 TDC Pulse Sender Unit
5 Battery
6 Rl Pulse Generator
Service Data
Start of Delivery (RIV)AT DC 1 4_-- 1 6_
Idle SpeedOM661LA : 720 -- 820 rpm, OM662LA : 750 -- 850 rpm

1F3 -- 40 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
Tools Required
617 589 09 21 00 Rl Sensor
617589102100 TimingTester
667589002100 TDCPulseGenerator
Commercial Tools
ItemTools
Digigal TesterWith Pulse GeneratorBosch, MOT 001.03gg
Hartmann & Braun, EOMT3
Without Pulse GeneratorBosch, ETD 019.00
Sun, DIT 9000
ALV, Diesel -- Tester 875
Test Procedure
1. Remove the screw plug (7) and seal (8) collect oil in
a suitable vessel.
2. Install the Rl sensor into the governor housing of in-
jection pump (1).
Rl Sensor 617 589 10 21 00
3. Connect the digital tester and TDC pulse sender unit
according to connection diagram.
4. Run the engine at idle speed and check the Rl value
on the digital tester
Rl valueAT DC 1 4_-- 1 6_
Notice
If out of standard, adjust the start of delivery.
5. Stop the engine.
6. Remove the Rl sensor, digital tester and TDC pulse
sender unit.
7. Replace the seal and tighten the plug.
8. Check engine oil level and adjust if necessary.
Tightening Torque30 N∙m (22 lb-ft)

OM600 ENGINE CONTROLS 1F3 -- 5
D AEW OO M Y_2000
VACUUM CONTROLSYSTEM TEST
1 Ventilation (To Passenger Compartment)
2 Engine Cut -- Off Valve (Ignition Key Switch)
3 Auto-- locking Hub Solenoid Valve
4 Engine Stop Valve Unit
5 PLA Vacuum Unit (Idle Speed Adjustment)6Engine
7 Vacuum Pump
830_Thermovalve
9 Fuel Injection Pump
Test Data
Idle Speed IncreaseAt least 100 rpm at approx. 500mbr
Permissible Pressure Drop of System400 -- 500mbar approx. 1 min.

1F3 -- 6 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
Tools Required
001 589 73 21 00 Vacuum Pump
201 589 13 21 00 Vacuum Tester
667 589 00 21 00 TDC pulse generator
Commercial Tools
Digital testere.g. Bosch MOT 001.03
Sun DIT 9000
Temperature measuring instrument with test probe
WB24e.g. Ahlborn, Therm 2263 -- 2
Eichenfeldstrabe 1 -- 3
D-- 8150 Holzkirchen
Tester Connection
11 TDC Pulse Sender Unit
12 Digital Tester