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1B3-36 OM600 ENGINE MECHANICAL Setting (with cylinder head installed)
1. Remove the prechamber of No. 1 cylinder.
2. Position the piston of No.1 cylinder at BTDC 10.
3. Install the measuring device into the prechamber bore andposition the dial gauge with a preload of 5mm. Dial Gauge 001 589 53 21 00
Depth Gauge 601 589 07 21 00
4. Slowly rotate the crankshaft in the direction of engine rotation until the large pointer on the dial gauge stops (TDC position). Notice The position of TDC is when the large pointer on the dial gauge is stopped before moving back.
5. remove the reinstall the measuring device and position the dial gauge scale at ‘0’.
6. Slowly rotate the crankshaft in the direction of engine rotation until the dial gauge has moved back (counterclockwise) by3.65mm.
7. Insert fixing device into the sensor bracket. Notice The pin on the vibration damper must engage into the slot of the fixing device. Fixing Device 667 589 01 21 00
8. If the pin does not engage, adjust the setting of the sensor bracket by removing and tightening of the sensor bracketbolts.
Tightening Torque 10 Nm
Notice
The timing mark on the damper must be positioned at ATDC 20.
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OM600 ENGINE CONTROLS 1F3-3
FUEL INJECTION PUMP CODING Model Code
PES 4M 55C 320 RS 167 PES 5M 55C 320 RS 168
Fuel Injection Pump Code Example) PES 5M 55C 320 RS 168
P Pump
E Self-Driven
S End Flange Mounting
5 Number of Cylinders (5EA)
M Pump Size
55 Element Diameter
C Modification Letter
320 Assembly Number
R Direction of Rotation (clockwise)
S188 Special Version
RSF Governor
R Governor
S Coil Spring
F Drive Governor
Component Location
1. Fuel Injection Pump
2. Vacuum Unit (Stop Unit)
3. Control Lever
4. PLA Vacuum Unit (Idle Speed Adjustment)
5. Governor
6. Fuel Pump
OM661 LA Engine OM662 LA Engine
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OM600 ENGINE CONTROLS 1F3-17
6. After adjustment, tighten the locking nut and place theposition 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 Service 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.
5. Ensure not to damage the idle spring in the governor and adjust idle speed by turning the PLA unit (5) slowly. Notice Do not rotate the PLA unit over ½ turn from the position
marking. If do, idle spring in the governor will be severely damaged. Clockwise
Counterclockwise
RPM Decrease RPM Increase
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