CO-Adjustment

Fig. 244 DISCONNECT PULSAIR:

1. Connect CO meter.
2. Disconnect and plug PULS-AIR hose at air cleaner. Fig. 244.

Fig. 245 DISCONNECT E.G.R. SYSTEM:

3. Disconnect E.G.R. valve and plug vacuum line. Fig. 245.

Fig. 246 IDLE SPEED ADJUSTMENT:

4. Run engine to normal operating temperature.
5. Check and adjust idle speed (900 ± 50 RPM). Fig. 246.

Fig. 247 CO ADJUSTMENT:

6. Check CO content. Value range is 0.5 - 2.0%.
7. If outside these limits, set CO to 1.0% with VOLVO tool #5015 or equivalent. Fig. 247.
8. Reconnect E.G.R. valve and PULS-AIR hose.
9. CO should drop if E.G.R. and PULS-AIR system are working correctly.
10. Recheck and adjust idle speed (900 ± 50 RPM) if necessary
11. Disconnect all test equipment.