MotorVac COOLANTCLEAN III - Manual (Page 14)

Service Procedure
1. Check engine & coolant temperatures before removing any cooling system components or
repairing any associated items, let vehicle cool off if necessary.
CAUTION: Cooling systems may retain residual pressure after the vacuum procedures are
performed. Extreme care should be taken and proper protection worn when releasing the radiator
and overflow tank caps. Verify all pressure has been alleviated before opening hot cooling
systems; hot coolant under pressure can cause severe burns.
2.
Attach the unit to the vehicle's battery by connecting the unit's red battery clip to the positive (+)
battery terminal and the black battery clip to a solid ground point as far away from the battery as
possible.
3. Connect the clear braided disposal hose from the machine to the waste tank nipple or install an
adapter and direct into the shop’s coolant recycling receptacle or into a suitable container
approved for hot coolant collection.
4. Locate and carefully remove cap from the coolant overflow tank (if applicable). Attach an open-
ended adaptor onto the unit’s RED / used coolant hose & insert adaptor end into overflow tank.
Press the unit’s power switch to the VACUUM position (LEFT) & evacuate approximately half of
the amount of coolant in the overflow tank. Move unit’s power switch to the OFF position
(CENTER) to stop the vacuum pump.
5. Locate and carefully disconnect the vehicle’s overflow tank hose (The overflow hose is usually
located on the radiator filler neck, just under the radiator cap). Connect the adaptor on the unit’s
RED hose to the radiator overflow nipple (Use the proper size hose piece and stepped fitting if
necessary).
6.
Press the unit’s power switch to the VACUUM position (LEFT).
7. Slowly and carefully pull the pressure release lever on top of the radiator cap (if applicable) or
loosen radiator cap according to the vehicle’s manufacturer or the instructions printed on the top
of the radiator cap. Carefully remove cap from radiator.
8. Disconnect RED vacuum hose from radiator overflow tube, insert hose into radiator fill neck &
evacuate until the coolant is below the upper radiator hose connection point.
9. Remove RED vacuum hose from radiator & re-insert into overflow reservoir, evacuate container
completely. When finished, press power switch to the OFF position (CENTER).
10. Disconnect vehicle’s upper radiator hose and install the correct size adapters to radiator and to
the removed upper hose. Tighten hose clamps securely.
11. Connect the unit’s service hoses to the vehicle: FOR SERVICE WITH ENGINE RUNNING.
The unit’s GREEN / new coolant hose will connect to the adapter installed on radiator’s upper
inlet and the unit’s RED / used coolant hose will connect to the adapter installed on the upper
radiator hose (previously removed from the radiator).
NOTE: In some cases, vehicles with reverse flow characteristics may require that the
unit’s service hoses (RED & GREEN) be reversed. Verify flow before connection of unit
and hose.
12. Verify that the Coolant Flush’s tank contains the correct amount of Antifreeze (Coolant) and water
mixture. (Refer to the coolant and/or vehicle manufacturer’s specifications for proper mixture
ratios)