block the open area in the hose barb. This will allow the pump and the vacuum to work together to
get the water moving. Priming may take 20-60 seconds, and the solution tank should be full.
Once the pump is primed, turn the pump and the vacuum OFF. Remove the priming hose.
5
Add liquid cleaning chemical, with a pH between 6 and 9, to the solution tank.
6
Attach the spray hose to the solution quick disconnect and the vacuum hose to the hose barb on the
recovery tank. Pull the hoses out of the reel. Attach the other ends of the hoses to the cleaning tool.
7
Allow the heat exchanger two minutes to reach operating temperature. The red light (3) will go out
when the heater has reached maximum operating temperature.
8
Turn the pump on and set the pressure selection switch to the desired spraying pressure: 300 or 50
PSI).
9
Turn the vacuum ON.
10 Begin cleaning using the correct hoses and tool.
11 Use defoamer in the recovery tank any time foaming occurs.
12 Monitor the water level in the solution tank. Do not let the pump run dry.
13 When the solution tank gets low, turn the pump and the vacuum off, fill the solution tank, empty
and clean the recovery tank.
14 When finished with the job, remove any unused solution from the solution tank, and run a few
gallons of clean water through the system. Drain the recovery tank by placing the dump hose over
a drain, or into a bucket, and remove the hose cap. Disconnect the hoses from the cleaning tool,
and reel the hoses up onto the hose spool.
NOTE: to remove the reel, with the hoses, from the machine, pull the vacuum hose loose from the hose
barb on the front of the tank. Disconnect the solution hose quick coupling. Push the vacuum hose into the
center of the spool. Grasp the spool on both sides, and lift it off the machine. NOTE: before servicing any
component in the base cabinet, the hoses and spool must be removed from the machine before the tanks
can be lifted open.
ELECTRIC CIRCUIT LOCATOR
This unique, patented system is operated by a solid state circuit. It will inform the operator when the two
cords are plugged into separate circuits by turning on the circuit locator light. This helps to prevent tripping
circuit breakers. NOTE: if the green, circuit locator light does not illuminate when the cords are plugged in,
then both cords are on the same circuit. Try other outlets with one of the cords until you get the locator light
to come on. NOTE: if the bypass switch is turned on when both cords are on the same circuit, the breaker
in the wall may trip.
BALL FLOAT VACUUM SHUT-OFF:
Prior to using the machine, always check that the float filter is clean and the ball can travel freely. When the
recovery tank is full, the ball float will rise and will shut off the vacuum flow to prevent any more water from
entering the tank. Turn off the vacuums, and empty the recovery tank.
NOTE: if foam is present, or if the ball float is prevented from rising, the float will not be able to stop the air
flow, and the tank may over fill. Water damage to the vacuum motors is not covered by warranty.
CAUTION: to avoid vacuum motor damage, always use a defoamer any time foam is present.
Summary of Contents for COBRA PLUS-310
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