Service Manual

Cooling System ISB, ISBe and QSB (Common Rail [...]
Page 8-32 Section 8 - Cooling System - Group 08
To buy Cummins Parts and Service Manuals, Training Guides, or Tools go to our website at https://store.cummins.com
Attach the fill hose quick disconnect coupling (1) of the
coolant replacement tool to the quick disconnect fitting.
Location of the fitting may vary between OEMs, but the
fitting is generally located in the lowest point of the
vehicle/equipment cooling system package.
NOTE: Most Volvos are equipped with a different style
fitting located in the radiator. An adapter hose is needed
to connect the Cummins® coolant replacement tool to the
fitting. The adapter hose is included in accessory kit.
Open the service hose valve (1) by turning it clockwise
until it is completely open (approximately ¼ turn).
Additional shop air may be required to maintain enough of
a system vacuum to remove the coolant from the system.
This can be done by moving the control valve lever (2)
back to the VAC position.
When the cooling system has been evacuated, a coolant
and air mixture will be visible in the clear section of the
coolant replacement tool fill hose.
NOTE: Some residual coolant will settle in the coolant
package as the recessed areas of the block continue to
drain down over the next few minutes.
Once the system has been evacuated, turn the service
hose valve (1) to the closed position by turning the valve
counterclockwise a ¼ turn. Disconnect the shop air
connection from the coolant replacer tool.
Disconnect the fill hose quick disconnect coupling (2) on
the coolant replacement tool from the quick disconnect
fitting.