Clarke TFC 400 Benutzerhandbuch - Seite 6

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OPERATION

1) Insert the appropriate metering tips into the chemical feed lines (see illustration, page 5).

2) Fill the holding tank with warm water (not exceeding 120 °F). Do not add any chemical to

the tank.

3) Prepare the area for cleaning by emptying waste receptacles, clearing debris, removing

paper products, blowing out vents, and sweeping ﬂ oors.

4) Connect the 25 ft power cord to the pig-tail on the rear of the machine. Test the GFCI on

the power cord before each use. Plug the GFCI protected power cord into an outlet.

5) PRIME THE PUMP: Attach the priming hose to the outlet quick disconnect and place the

open end of the hose into the recovery tank. Turn on the pump and let it run until the pump

is completely primed (no visible air in the water stream). Turn the pump off.

NOTE: prime the machine before you place the chemical feed tubes into chemical

containers.

6) Disconnect the priming hose and attach the solution hose to the quick disconnect.

7) Attach the spray gun to the other end of the solution line.

8) Place chemicals in the molded-in chemical bottle containers on the rear of the machine.

Insert one of the feed lines into one of the chemical containers. Secure the line by screwing

on the cap. The chemical will feed from which ever container the selector valve on the switch

plate is turned towards and when the gun is used in the low pressure setting. Use chemicals

with a pH of between 4 and 12. Never add chemicals to the clean water tank.

9) Set the spray gun to low pressure by sliding the pressure selector forward (low pressure

= forward; high pressure = back).

10) Turn on the pump switch (push button) and spray through the gun for a few seconds to ﬁ ll

the line with solution.

11) Apply the chemical to the walls and ﬁ xtures from the bottom up. Spray the ﬂ oor last as you

work your way out of the room.

12) Allow the chemical to work for the proper amount of dwell time, according to the chemical

manufacturer's directions. Agitate heavily soiled areas with a scrub brush.

13) Turn off the chemical injector valve by turning the selector to the down position.

14) Set the spray gun to high pressure and rinse the area from the top down.

15) Connect the vacuum hose, attach the squeegee, and turn on the vacuum (rocker switch).

16) Squeegee off the mirrors, pick up the liquid off the ﬂ oor with the ﬂ oor tool. If you have the

optional blow dry hose, use it to dry the ﬁ xtures.

17) Drain the recovered water into a utility sink or toilet. NOTE: Keep the top of the drain hose

higher than the water level in the tank to avoid uncontrolled discharge of water when you

open the cap on the hose.

CAUTION

To avoid vacuum motor damage, always use a defoamer any time foam is present. Before you

turn on the vacuum always make sure the ﬁ lter screen on the ball ﬂ oat is clean and that the ball

can travel freely.

RE-PRIMING THE PUMP

If the pump looses prime between jobs, follow the instructions to PRIME THE PUMP, above. If

that doesn't get water ﬂ owing, put the priming hose into the vacuum inlet hose barb and cover the

rest of the space around the priming hose with your hand. Turn on the vacuum (with the pump

also running) and let the suction of the vacuum assist in getting water into the pump.