U.S. Products LT-350 EXTRACTOR 120V Operating instructions

03/10 revised 11/10 FORM NO. 56041905
LT-350
EXTRACTOR
120V
INFORMATION
&
OPERATING
INSTRUCTIONS
DO NOT OPERATE 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.

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 observed,
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 130º F/54º C 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 LT-350 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 chemicalsr. 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 5 and 10
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. Lubricate the wheels, castors, and quick disconnects with an all purpose
silicone spray. The vacuum and the pump do not require any maintenance. Clean the body with an all
purpose detergent, and protect it with an automobile interior polish.
Recovery
Tank Lid
Switch
Plate
Vacuum Hose
Connection
Solution Hose
Connection
Vacuum Hose
and Solution
Hose on Reel
Latch
Wheel
Pressure Gauge
Castor
Solution Tank Lid
Dump Hose
Vacuum Hose
from Reel to Tank

Record the serial number and model of your new extractor here:
Serial Number: __________________
Model: LT-350____
Purchase Date:_____________
Write the name and phone number of your distributor:
_____________________________________
_____________________________________
1 Inspect the machine, hoses, and cleaning tools for cleanliness and completeness.
2 Fill 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 Plug in the power cords. Do not connect both cords to the same outlet; the green circuit
locator light (1) on the switch plate should light up. If the locator light does not come on, try
different outlets until it does. If you are certain the cords are on separate circuits, turn the
bypass switch ON (2). This will allow the heater to turn on.
CAUTION: using the bypass switch when the cords are on the same circuit may cause the
breaker in the wall to trip. NOTE: the red light will turn on only when the heat exchanger is
actively heating.
4 Connect the priming hose to the machine, turn the pump switch ON (6) and prime the air out of
the pump by allowing the water to flow unrestricted. When the water is clear (no air in it) turn the
pump off and remove the priming hose. NOTE: if priming is difficult, place the open end of the
priming hose into the vacuum inlet hose barb, and turn the vacuum on (4). Use your hand to
SET UP and OPERATION
CIRCUIT LOCATOR LIGHT INDICATES TWO CIRCUITS.
HEATER WILL AUTOMATICALLY TURN ON.
BYPASS SWITCH.
TURNS THE HEATER
ONWHENGREEN
LIGHT IS NOT ON
1
2
3
VACUUM
ON/OFF SWITCH
4
RED LIGHT INDICATES
HEATER ISHEATING
PUMP
ON/OFF
SWITCH
6
SELECT CARPET
ORUPHOLSTERY
5
SWITCH PLATE
(and be sure to register your purchase to activate your warranty)

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.

3
2
49
1
55
54A
51
6
9
8
15
37
36
47
38
48
44
40
35
19
17
18
45
16
439
7
810
11
12
13
14
21
123
26
25
24
27
33
34
46
41
42
43
43
52
53
18A
57
56
54
15A
58
29
28
24A
59
3-2010
LT-350
120V
31
20
30
22
32
12
43

LT-350 EXTRACTOR
PART LIST
120V
1 805 Chain, lid, 8”
2 FP446 Lid, solution tank
3 HCP-1 Holding tank, white
4 1088 Glide, teflon
6 2062 Solenoid valve
7 925 Hose, 3/8” X 8”
8 156 Hose clamp
9 945A Valve, pressure unloader
10 2060 Motor, pump
11 950A Cam/bearing assembly
12 FP449A Pump complete, no mtr or soleniod
13 1147 Cap screw, pump to motor
14 944 Hose, pulsation dampening
15 913 Vacuum motor, 3-stage
15A 959 Gasket, vacuum motor
16 4405A Relay, vacuum
17 926 Manifold, vacuum motor mount
18 1136 Hose, vacuum inlet, 1-1/2” X 24 “
18A 156 Hose clamp
19 907 Hose barb, for vacuum hose
20 2086A Lid, vacuum, with ring
21 1074 Gasket, lid
22 207A Filter, pump inlet
23 FP364 Ball float assembly
24 1518 Hose clamp
24A 907 Hose barb/vacuum hose
25 1060B Hose, drain, 1-1/2” x 24”
26 1060C Plug, drain hose
27 CWKC-BLK Cord wrap, Black
28 FP345 Switch and acuator, motors
29 78 Light, green, 120V
30 FP346 Switch and actuator, heat/bypass
31 78B Light, red
32 1357 Switch plate
33 1057B Cord, power, 25 ft, yellow
34 1062 Receptacle, power cord
35 45 Quick disconnect, male, 1/4 p.t.
36 910-18.00 Axle, 18”
37 2084 Wheel, 10”
38 27A Axle cap
39 923B Dual circuit sensor PCB
40 FP336 PCB mount, snap track
41 918 Heat sink plate
42 ------ See miscellaneous
43 928 Louver, 3”, includes screws
44 1377 Hose, hydraulic, 27-3/4"
45 FP357 Heat exchanger, complete
46 455 Mount, heat exchanger
47 198 Hose clamp
48 1278 Hose, hydraulic, 13”
49 905 Castor, 4”
51 BCP-BLK Base, black
52 2164 Pressure gauge
53 908A Latch, rubber
54 2014 Fan, 100 CFM, cooling
54A 2B1 Screw, 6-32 X 2-1/4”
55 2015 Guard, cooling fan
56 FP228A Gasket, 87”
57 VCP-1 Vacuum tank, white
58 FP443 Pressure line, complete
59 919G Vacuum hose, complete
ITEM PART No. DESCRIPTION ITEM PART No. DESCRIPTION
MISCELLANEOUS PARTS AND KITS
FP194C Heat Repair kit includes probe, thermistor
control, thermal cutout & circuit board
FP450A Pump & motor, complete
FP444 Vacuum hose & pressure line, with reel
complete
FP445 Vacuum hose & pressure line, complete,
no reel
FP442 Swivel pressure hose, for reel, 16”, complete

LT-350
EXTRACTOR
120V
SPECIFICATIONS:
Rotomolded Body:
Vacuum:
VAC Shutoff:
Pump:
Waterlift:
Heat:
Heater:
Wand:
Weight:
Dimensions:
Lifetime Warranty
7.2” 3-stage
Ball float
Positive displacement, selectable pressure setting
140”
Instant to 212º F
2000 Watts
Light weight (only 6-1/2 lb), 2-tip
112 lbs.
38” H x 17 3/4” W x 36” L
NOTES:
425-322-0133 / 800-257-7982 / FAX: [phone]
11015 - 47th Ave. W. / Mukilteo, WA 98275
VISIT US AT: http://www.usproducts.com