Manual

122
Model 10054 Rev 3/02
General Maintenance
NOTE: Attachahosetothepetcocktoallowdrainingdirectlyintoacontainer.
4. Allow coolant to drain from the radiator. Detach line from bottom of
coolant overflow bottle and drain bottle.
5. Flush system with clean water and drain again.
NOTE: On vehicles equipped with a cab heater option, a shut off valve is
installed at the engine inlet. Disconnect hose from shut off valve to drain the
heater.
6. Remove the coolant drain plug (Figure 78) and drain any coolant
from the engine block. Replace the drain plug.
Figure 78
7. Transfer the coolant into a properly labelled container. Dispose of
properly.
8. Reconnect line to bottom of overflow bottle and close petcock on
the radiator. Reconnect heater hose.
9. Open the petcock on the turbo aftercooler (Figure 79).
Figure 79
0724650
390
3102
OG0031
Coolant Drain Plug
OH2650
Petcock
Turbo Aftercooler
122
Model 10054 Rev 3/02
General Maintenance
NOTE: Attachahosetothepetcocktoallowdrainingdirectlyintoacontainer.
4. Allow coolant to drain from the radiator. Detach line from bottom of
coolant overflow bottle and drain bottle.
5. Flush system with clean water and drain again.
NOTE: On vehicles equipped with a cab heater option, a shut off valve is
installed at the engine inlet. Disconnect hose from shut off valve to drain the
heater.
6. Remove the coolant drain plug (Figure 78) and drain any coolant
from the engine block. Replace the drain plug.
Figure 78
7. Transfer the coolant into a properly labelled container. Dispose of
properly.
8. Reconnect line to bottom of overflow bottle and close petcock on
the radiator. Reconnect heater hose.
9. Open the petcock on the turbo aftercooler (Figure 79).
Figure 79
0724650
390
3102
OG0031
Coolant Drain Plug
OH2650
Petcock
Turbo Aftercooler