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OPERATION

1

Inspect the machine, hoses, and cleaning tools for cleanliness and completeness.

2

Fill the Solution Tank with warm water.  Using warm water may be a benefit in cleaning
effectiveness, but do not use hot water (above 130

°

 F+/ 54

°

C) in the tank.  Add liquid cleaning

solution with a pH value of between 6 and 9.  High pH detergents and/or acid rinses will
accelerate the wear of the seals and will void the warranty.

3

Plug in the power cords.  Do not connect both cords to the same outlet.  If you are certain the
cords are on separate circuits, turn the Heat switch on. 

 CAUTION:

 using the Heat switch

when the cords are on the same circuit may cause the circuit breaker in the wall to trip.

NOTE:

 the cord with the red label “H” at the cord retainer supplies power to the heater.  The

other cord powers the vacuum, pump, and cooling fan.

4

Attach the spray hose to the solution quick disconnect on the front of the machine and attach
the vacuum hose to the hose barb on the recovery tank.  Attach the other ends of the hoses to
the cleaning tool.

5

Allow the heat exchanger two minutes to reach operating temperature.

6

Turn the pump on. Turn the vacuum on. 

NOTE:

 the pump has a built in pressure switch; the

pump runs only when you are spraying.

7

Begin cleaning using the correct hoses and tool.

8

Use defoamer in the recovery tank any time foaming occurs.

9

Monitor the water level in the solution tank.  Do not let the pump run dry.

10

When the solution tank gets low, turn off the pump, fill the solution tank, empty and clean the
recovery tank.

11

When finished with the job, remove any unused solution from the solution tank, and run a few
gallons of clean water through the system to rinse out any detergent.

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 vacuum, 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.

       CAUTION!

To avoid vacuum motor damage, always make sure the float filter is clean and the ball can travel

freely prior to using the machine.  And always use a defoamer when foaming occurs.

Summary of Contents for Cobra-H3

Page 1: ...ularly monthly or more often to prevent a build up of minerals or chemicals in the pump and heat systems Follow the flush with a clear water rinse to remove any particles and to rinse the acid from th...

Page 2: ...risk of fire electric shock or injury Do not leave the maching unattended when it is plugged in Unplug the unit from the outlet when not in use and before servicing To avoid electric shock do not exp...

Page 3: ...d has a grounding plug that looks like the plug illustrated in Figure 1 below A temporary adapter illustrated in Figures 2 and 3 may be used to connect this plug to a 2 pole receptacle as shown in Fig...

Page 4: ...nance Vacuum Inlet 5 This is where the vacuum hose attaches to the machine Latch 6 Open the latches to access the base compartment which contains the motors and heater Drain Gate 7 Open this gate to d...

Page 5: ...es to reach operating temperature 6 Turn the pump on Turn the vacuum on NOTE the pump has a built in pressure switch the pump runs only when you are spraying 7 Begin cleaning using the correct hoses a...

Page 6: ...seals are damaged Internal vacuum hose is cracked Recovery tank lid is not closed is cracked or gasket is damaged Recovery tank is warped or cracked Debris impeding air movement on vac motor impellor...

Page 7: ...25 21 22 40 41 42 43 44 45 46 47 53 48 55 49 58 50 51 52 62 69 14 16 66 67 68 COBRA H302 07 2006 19 56 24 11 12 13 14 33 28 32 35 63 38 37 30 65 61 60 59 58 69 57 55 54 53 36 31 34 22 25 26 29 27 31...

Page 8: ...100 psi 35 FP Heat Exchanger complete 36 5 Bolt 1 4 20 X 3 4 37 8 Lock nut 1 4 20 38 455 Bracket heater mount 39 76 Hose Clamp 40 270 Bolt 1 4 20 X 5 41 137 Washer split lock 42 136 Nut finish 1 4 43...

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