U.S. Products KING COBRA 500 100V Operating instructions

KING COBRA® 500
100V
INFORMATION
&
OPERATING
INSTRUCTIONS
DO NOT OPERATE THE MACHINE UNTIL YOU HAVE READ
ALL SECTIONS OF THE INSTRUCTIONS
IMPROPER USE OF THE MACHINE WILL VOID THE WARRANTY
1. Always use a defoamer when foaming occurs to prevent vacuum motor damage.
2. Keep machine from rain and snow, extremes in temperatures, and store in a
heated location. Use the machine indoors. Do not use outdoors.
3. Do not let the pump run dry.
4. Use approved chemicals only. NO SOLVENTS.
5. Wear gloves or use rags when removing quick disconnects to prevent burns.
07.31.2007

IMPORTANT SAFETY INSTRUCTIONS
This machine is only suitable for commercial use, for example in hotels, schools,
hospitals, factories, shops and offices other than normal residential housekeeping
purposes.
When using any electrical appliance, basic precautions should always be followed,
including the following:
NOTE: Read all instructions before using this machine.
WARNING!
To reduce the risk of fire, electric shock, or injury:
•Do not leave the machine 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 expose to rain or snow. Store, and use, indoors.
•Do not allow to be used as a toy. Close attention is necessary when used near
children.
•Use only as described in this manual. Use only the manufacturer’s recommended
attachments.
•Never add water over 54º C/130º F to the solution tank.
•Do not use with damaged cord or plug. If the machine is not working as it
should, has been dropped, damaged, left outdoors or dropped into water, return it
to a service center.
•Do not pull by the cord, use the cord as a handle, close a door on the cord, or pull
the cord around sharp edges or corners. Do not run the machine over the cord.
Keep the cord away from heated surfaces. To unplug, grasp the plug, not the cord.
•Do not handle the plug, the cord or the machine with wet hands.
•Extension cords must be 12/3 and no longer than 50 feet. Replace the cord or
unplug immediately if the ground prong becomes damaged.
•Do not put any object into openings. Do not use with any opening blocked; keep
free of dust, lint, hair, and anything that may reduce air flow.
•Keep loose clothing, hair, fingers, and all parts of body away from openings and
moving parts.
•Do not pick up anything that is burning or smoking, such as cigarettes, matches,
or hot ashes, or any health endangering dusts. Do not use to pick up flammable
or combustible liquids such as gasoline or use in areas where they may be
present.
•Turn off all controls before unplugging.
•Use extra care when cleaning on stairs.
•Connect to a properly grounded outlet only.
•Liquid ejected at the spray nozzle could be dangerous as a result of its
temperature, pressure, or chemical content.

INSPECTION:
Carefully unpack and inspect your KING COBRA-500 for shipping damage. Each machine is tested and
inspected before shipping. Any shipping damage incurred is the responsibility of the carrier. You should notify
the carrier immediately if you notice damage to the box or to the machine or parts.
CLEANING SOLUTIONS:
We recommend liquid cleaning chemicals. Powder chemicals may be used, but unless mixed very thoroughly
they could cause a build-up in the pump, lines, heat exchanger and/or quick disconnects. Any problem
caused by a chemical build-up is not covered by warranty. Use a neutral cleaner with a pH between 6 and 9
to avoid premature wear of the pump, seals, and/or other components. Damage caused by the use of
strong chemicals is not covered by the warranty.
MAINTENANCE:
For optimum performance flush the machine with clear water at the end of each working day. Once a
month, minimum, run a flushing compound through the machine to break up any mineral or chemical build-
up that may have formed. U.S. Products “X-1500” is recommended. The vacuum motor, pump motor, and
the pump do not require any scheduled maintenance; however, the motors may require replacement brushes
after 1000 - 1500 hours. The pump may require rebuild kits after 1000 - 1500 hours, typically, and the
pump unloader valve may need to be replaced after approximately 1000 - 1500 hours of use.(refer to
machine part list for numbers). Clean the body with an all purpose detergent, and protect it with an
automobile interior polish. Lubricate the wheels, castors, and quick disconnects with an all purpose silicone
spray.
Recovery
Tank Lid Switch
Plate
Vacuum Hose
Connection
Solution Hose
Connection
Vacuum
Hose and
Solution
Hose on
Reel
Latch
10 Inch
Wheel
Pressure
Gauge
4 inch
Castor
Solution Tank
Lid
Dump Hose
(on rear of
machine)
U. S. PRODUCTS

NOTE: This machine is only suitable for commercial use, for example in hotels, schools, hospitals,
factories, shops and offices other than normal residential housekeeping purposes.
SWITCH PLATE
PUMP
PRESSURE
ADJUST
TEMPERATURE
ADJUST
3VACUUM
ON/OFF
SWITCH
2
4
5
INDICATES
SPRAYING
PRESSURE
PRESSURE
GAUGE
Record the serial number and model of your new extractor here:
(and be sure to register your warranty: go to www. usproducts.com)
Serial Number: __________________ Model: KING COBRA-500-JP
Purchase Date:_____________
Write the name and phone number of your distributor:
1
REDLIGHTINDICATES
HEATER IS HEATING
1 Inspect the machine, hoses, and cleaning tools for cleanliness and completeness.
2Fill the solution tank with 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.
3 Screw the lid on the recovery tank. Close the dump hose.
OPERATION
continue the instructions on the next page

4 Connect the priming/siphon hose to the machine, turn the pump ON by turning the pump pressure knob
(2) up to increase pump speed, and turn the vacuum switch (3) on. Hold the rubber ‘cork’ against the
vacuum inlet hose barb on the recovery tank. The pump should prime between 20 - 60 seconds. Watch
the water flow into the recovery tank through the clear lid. When the water is clear (no air in it) and
flowing strongly, turn both the pump and the vacuum off, and remove the priming hose.
Priming may take 20 - 60 seconds, and the solution tank should be full.
5 Add liquid cleaning chemical, with a pH between 6 and 9, to the solution tank.
6 Attach the spray hose (from the reel) to the solution quick disconnect and the vacuum hose to the
hose barb on the recovery tank. Pull the hoses out from the reel. Attach the other ends of the hoses
to the cleaning tool.
7 Set the temperature knob (4) to the desired heat setting. Allow the heat exchanger two minutes to
reach operating temperature. The red light (5) will turn on only when the heat exchanger is actively
heating and the red light (5) will go out when the heater has reached operating temperature.
NOTE: the red light will be on nearly all the time as you clean.
8 Turn the pump on by setting the pressure adjust knob to the desired spraying pressure (0 - 500 PSI).
Read the spraying pressure at the pressure gauge (1) while spraying. NOTE: when you let off the
trigger on the wand, the pressure gauge reading will drop to 0 psi; however, the spraying pressure will
remain at the level to which you have set it. Turn the vacuum on (3). NOTE: the vacuum motor will
start up slowly to prevent a large current surge.
9 Begin cleaning.
10 Use defoamer in the recovery tank any time foaming occurs.
11 Monitor the water level in the solution tank. Do not let the pump run dry.
12 When the solution tank gets low, turn off the pump and the vacuum, fill the solution tank, empty
and clean the recovery tank.
13 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 a
bucket, and removing the cap. Disconnect the hoses from the cleaning tool, and reel them up onto the
hose spool.
REFER TO THE DIAGRAMS ON THE PREVIOUS PAGE
ELECTRONIC FLOAT SHUT-OFF
When the recovery tank is full, the electronic float switch will turn the vacuum motor off. This will
prevent water from entering the vacuum motor. The float may not work properly if the float filter rod
is dirty or if there is heavy foam in the tank
. To reset, turn the Vacuum switch off, and empty the
tank.
CAUTION: to avoid vacuum motor damage, always vacuum the carpet before cleaning, but
never use the extractor to dry vacuum.
continued from the previous page
NOTE: To remove the reel, with 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 Vacuum hose into the
center of the hose spool. Grasp the spool from either side, 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.
CAUTION: keep the vacuum inlet filter clean. The filter is located towards the rear of the
recovery tank, near the switch plate. Remove it and clean it daily.
CAUTION: to avoid vacuum motor damage, always make sure the float filter is clean and that it
can travel freely before you operate the machine. Always use a defoamer any time foam is present.

KING COBRA-500-JP
100V
PART LIST
1 805 Chain, lid, 8”
2 901B Lid, solution tank
3 Holding Tank, white
4 1088 Glide, teflon
5 178 Screw, 6-32 X 1/2”
6 925 Hose, 3/8” I.D. X 24”
7 164 Hose barb, brass, 3/8” hose
8 91 Elbow, 90 degree
9 945D Valve, pump unloader
10 92A Nipple, S/S
11 216 Elbow, brass
12 168 “T”, brass, 1/4 p.t.
14 211 Plug, brass, 1/4 p.t.
15 950C Pump, no motor
16 97 Reducer, brass
17 223 Quick connect, male, 1/8 p.t.
18 165 Hose barb, brass, 1/2” hose
19 1147 Cap screw, pump to motor
20 950D Cam/bearing assembly
21 946 Hose, 1/2” I.D. X 18”
22 FP348B Hose, pump to heater, 12”
23 FP411 Hose assembly, pump to gauge
24 913B Vacuum motor, 3-stage
25 959 Gasket, vacuum motor
27 926 Manifold, vacuum motor mount
28 1136 Hose, vacuum inlet, 1-1/2” X 24“
29 907 Hose barb, for vacuum hose
31 1148 Screw, 8-32 X 1”
32 2086 Lid, vacuum, with ring
33 1074 Gasket, lid
34 1060C Plug, drain hose
35 1060B Hose, drain, 1-1/2” X 24”
36 156 Hose clamp
37 207A Filter, pump inlet
38 2026 Float switch
39 CWKC-BLK Cord wrap, Black
41 1146 Pipe, 6.85”, S/S
42 45 Quick connect, male, 1/4 p.t.
43 1144 Rubber sleeve, 1/2” ID X 5”
44 1062 Receptacle, power cord
45 1057B Power cord, 25 ft, 3/12, yellow
46 Vacuum tank, white
46A 1131 Elbow, PVC
47 948B Motor, pump, DC out,
48 FP361 PCB, pump motor speed,
49 FP225 PCB, vacuum control
50 2B1 Screw, 6-32 X 2-1/4”
51 2014 Fan, cooling
51A 2015 Guard, fan
52 908A Latch, draw, rubber
53 928 Louver, 3”, includes 3 screws
54 BKCR-BLK Base, black
55 905 Castor, 4”
56 176A Hose clamp
57 929 Filter, vacuum inlet
57A 1139 Elbow, 45°
58 FP348 Heat exchanger
59 455 Bracket, mounting, heater
60 ---- See miscellaneous Parts and Kits
61 918 Plate, heat sink
62 FP348A Hose, heater to outlet
65 910 Axle, 21”
66 2084 Wheel, 10”
67 27A Axle cap
68 943001 Switch plate
69 951B Pressure gauge
70 28 Screw, #4 X 3/8”
71 FP399 Potentiometer, with cable, pump
71A 248 Knob, blue top, for pump speed
72 78B Light, red,
73 FP345 Switch & actuator, vacuum
75A 248 Knob, red top, for heat adjustment
75 FP347 Potentiometer, with wires, heat
77 FP351 Gasket, (#1043A X 84”)
78 1128 Label, KC-500
81 FP350C Vac and pressure line complete, 25 ft
82 FP350A Reel complete, without hoses
7-31-07
MISCELLANEOUS PARTS AND KITS
FP194E Heat repair kit includes probe, thermistor control,
thermal cutout & instructions (for machines built after June, 2005)
FP409 Pump & motor complete, w/unloader 500 psi
FP410 Pump complete w/unloader, no motor
950CP Pump rebuild kit, valves and O-rings, 500 psi
250 Pump rebuild kit, piston and seals, 500 PSI
SYP1 Syphon hose
FP350B Pressure line, complete with swivel end. 25 ft.
FP350 Vacuum hose & pressure line with reel, complete
FP469 Swivel hose assembly, 16-1/2”, without reel
ITEM PARTNo DESCRIPTION ITEM PARTNo. DESCRIPTION
(NOTE: Items in kits not sold separately.)

Rotomolded Body:
Vacuum:
VAC Shutoff:
Pump:
Waterlift:
Heat:
Heater:
Wand:
Weight:
Lifetime Warranty
7.2” 3-stage
Electronic
Positive displacement, fully adjustable 0-500 psi
140”
Fully adjustable 145º to 212ºF
1500 Watts
Double bend, two spray tip, for 500 psi
122 lbs.
SPECIFICATIONS:
KING COBRA® 500
100V