LEGEND GT
MOBILE CLEANING UNIT
Operating Instructions (ENG)
MODELS: LEGEND GT
1.001-119.0
86313050 - BP
10/24/13
Read instructions before operating the machine.
Left intentionally blank
Warranty Registration
Thank you for purchasing a Prochem product. Warranty registration is quick and easy.
Your registration will allow us to serve you better over the lifetime of the product.
To register your product go to :
www.prochem.com/WarrantyRegistration.aspx
For customer assistance:
1-800-776-2436
Model:
Date of Purchase:
Serial Number:
Dealer:
Address:
Phone Number:
Sales Representative:
Machine Data Label
Overview
Welcome…and congratulations on the purchase of your Mobile Cleaning Unit. This instruction manual is a guide
for operating and servicing your unit. Read this manual completely before installing or operating this unit.
This unit offers you personal convenience. All of your instrumentation and controls have been positioned to give
you easy access for operation and daily maintenance.
Proper operation and service are essential to the efficient functioning of this unit. When maintained correctly, this
unit will have a long, trouble-free life.
The service methods described in this manual are explained in such a manner that servicing may be performed
accurately and safely. Proper service varies with the choice of procedure, the skill of the mechanic, and the tools or
parts available. Before attempting any repair, make certain that you are thoroughly familiar with this equipment and
are equipped with the proper tools. Any questions pertaining to operating or servicing this unit should be directed
to your nearest dealer.
THIS UNIT MUST BE INSTALLED BY THE DEALER FROM WHOM YOU PURCHASED IT IN ACCORDANCE
WITH THE PRESCRIBED INSTALLATION PROCEDURES.
Information in this document is subject to change without notice and does not represent a commitment on the part
of PROCHEM.
86313050 LEGEND GT
1
Table of Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Machine Data Label . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Receiving Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . 4
Acceptance of Shipment . . . . . . . . . . . . . . . . . . . . . 4
Equipment List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
How to Use This Manual . . . . . . . . . . . . . . . . . . . . . 5
Safety
IMPORTANT SAFETY INSTRUCTIONS. . . . . . . . . 6
Hazard Intensity Level . . . . . . . . . . . . . . . . . . . . . . . 8
Safety Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation
Dealer Responsibility . . . . . . . . . . . . . . . . . . . . . . . 10
Vehicle Requirements . . . . . . . . . . . . . . . . . . . . . . 10
Lifting Unit Onto Vehicle . . . . . . . . . . . . . . . . . . . . 10
Positioning Unit In Vehicle . . . . . . . . . . . . . . . . . . . 10
Bolting Down Unit And Waste Tank. . . . . . . . . . . . 11
Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Layout with 60 Gallon Waste Tank . . . . . . . . . . . . 12
Layout with 60 Gallon Waste Tank & Optional
Auxiliary Water Tank . . . . . . . . . . . . . . . . . . . . . 13
Layout with 100 Gallon Waste Tank . . . . . . . . . . . 14
Layout with 100 Gallon Waste Tank & Optional
Auxiliary Water Tank . . . . . . . . . . . . . . . . . . . . . 15
Waste Tank To Console Connection . . . . . . . . . . . 16
Fuel Pump Assembly Installation. . . . . . . . . . . . . . 16
Van Bulkhead Installation . . . . . . . . . . . . . . . . . . . 17
Fuel Supply & Return Line Installation. . . . . . . . . . 18
Battery Connection . . . . . . . . . . . . . . . . . . . . . . . . 19
Initial Operational Settings . . . . . . . . . . . . . . . . . . . 20
Operations
Technical Specifications . . . . . . . . . . . . . . . . . . . . 21
Fuel Requirements. . . . . . . . . . . . . . . . . . . . . . . . . 22
Engine Oil Requirements . . . . . . . . . . . . . . . . . . . . 22
Altitude Requirements . . . . . . . . . . . . . . . . . . . . . . 22
Chemical Requirements. . . . . . . . . . . . . . . . . . . . . 22
Water Requirements . . . . . . . . . . . . . . . . . . . . . . . 23
Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Vacuum System. . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Water Pumping and Heat Transfer System . . . . . . 28
Heat Exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Chemical Injection System. . . . . . . . . . . . . . . . . . . 30
Pre-Run Inspection / Setup . . . . . . . . . . . . . . . . . . 31
Check For Adequate Fuel . . . . . . . . . . . . . . . . . . . 31
Remove Tools From Vehicle . . . . . . . . . . . . . . . . . 31
Water Supply Connection . . . . . . . . . . . . . . . . . . . 31
High Pressure Solution Hose. . . . . . . . . . . . . . . . . 31
Vacuum Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Priming the Chemical Pump . . . . . . . . . . . . . . . . . 32
Waste Pump (Optional) . . . . . . . . . . . . . . . . . . . . . 32
Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Upholstery Cleaning. . . . . . . . . . . . . . . . . . . . . . . . 33
Shutdown and Daily Maintenance . . . . . . . . . . . . . 33
De-Flooding Operations . . . . . . . . . . . . . . . . . . . . . 33
Freezing Protection . . . . . . . . . . . . . . . . . . . . . . . . 33
Overheating Protection . . . . . . . . . . . . . . . . . . . . . 33
Winterizing the Unit . . . . . . . . . . . . . . . . . . . . . . . . 34
Removing Anti-Freeze From the Unit . . . . . . . . . . 35
2 86313050 LEGEND GT
Table of Contents
Maintenance
Service Schedule . . . . . . . . . . . . . . . . . . . . . . . . . .36
Key Checkpoints. . . . . . . . . . . . . . . . . . . . . . . . . . .38
External Fuel Pump Maintenance. . . . . . . . . . . . . .38
Chemical Supply System Maintenance . . . . . . . . .38
Heat Exchanger System Maintenance . . . . . . . . . .38
Vacuum Pump Maintenance. . . . . . . . . . . . . . . . . .39
Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Vacuum Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Solution Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Vacuum Inlet Filter (in Waste Tank) . . . . . . . . . . . .41
Vacuum Relief Valve. . . . . . . . . . . . . . . . . . . . . . . .41
Vacuum Pump Drive Belts . . . . . . . . . . . . . . . . . . .41
Solution Pump Drive Belts . . . . . . . . . . . . . . . . . . .42
Float Valve (Water Box) . . . . . . . . . . . . . . . . . . . . .42
Waste Tank Float Valve . . . . . . . . . . . . . . . . . . . . .42
Waste Tank Strainer Basket . . . . . . . . . . . . . . . . . .42
Waste Tank Vacuum Inlet Filter . . . . . . . . . . . . . . .42
Check Valve (Outlet). . . . . . . . . . . . . . . . . . . . . . . .43
Chemical Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Chemical and Temperature Control Valves . . . . . .43
Pressure Regulator. . . . . . . . . . . . . . . . . . . . . . . . .43
Vacuum Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
High Pressure Solution Hoses . . . . . . . . . . . . . . . .43
Optional Waste Pump-Out . . . . . . . . . . . . . . . . . . .43
General Service Adjustments. . . . . . . . . . . . . . . . .44
Engine Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Check Valve (Solution Outlet). . . . . . . . . . . . . . . . .44
Water Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Chemical Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Solution and Vacuum Pump Drive Belts. . . . . . . . .44
Packing Nut Adjustments for Chemical Valves. . . .45
Pressure Regulator. . . . . . . . . . . . . . . . . . . . . . . . .45
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Parts
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Side Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Control Panel - Upper . . . . . . . . . . . . . . . . . . . . . . 56
Control Panel - Upper . . . . . . . . . . . . . . . . . . . . . . 58
Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Vacuum Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Solution Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Heat Exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Pressure Regulator & Temperature Control Valve 70
Solution Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Water Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
60 Gallon Waste Tank - From Serial Number *(1) 76
60 Gallon Waste Tank - To Serial Number *(1) . . 78
100 Gallon Waste Tank . . . . . . . . . . . . . . . . . . . . 80
Fuel Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Battery Floor Mount . . . . . . . . . . . . . . . . . . . . . . . 84
Chemical Jug Floor Mount . . . . . . . . . . . . . . . . . . 86
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Hose Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Options
Hose Accessories . . . . . . . . . . . . . . . . . . . . . . . . . 92
Exhaust - Optional . . . . . . . . . . . . . . . . . . . . . . . . 94
Automatic Pumpout - Dual Diaphragm - Optional. 96
Wand - Titanium Six Jet - Optional . . . . . . . . . . . . 98
Wand - Ergo Titanium Six Jet - Optional. . . . . . . 100
Wand - Quad Jet - Optional . . . . . . . . . . . . . . . . 102
Wand - Tri Jet -Optional . . . . . . . . . . . . . . . . . . . 104
Stair Tool - Optional . . . . . . . . . . . . . . . . . . . . . . 106
Upholstery Tool - Optional . . . . . . . . . . . . . . . . . 108
Shelf Assembly - Optional. . . . . . . . . . . . . . . . . . 110
Water Tank Dual with Demand Pump - Optional 112
Water Tank - Demand Pump - Optional . . . . . . . 114
Auxiliary Water Tank with Pump-Optional . . . . . 116
Auxiliary Water Tank - Optional . . . . . . . . . . . . . 118
Hose Reel - Optional. . . . . . . . . . . . . . . . . . . . . . 120
Motorized Hose Reel - Tank - Optional. . . . . . . . 122
Motorized Hose Reel - Optional . . . . . . . . . . . . . 124
E Z - Charge Water Softener - Tank & Tray -
Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
E Z - Charge Water Softener - Filter - Optional . 128
E Z - Charge Water Softener - Brine System - . . . .
Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . 132
86313050 LEGEND GT 3
Receiving Your Unit
Acceptance of Shipment
Every part of your cleaning unit was carefully checked,
tested, and inspected before it left our manufacturing
plant. Upon receiving the unit, make the following
acceptance check:
1. The unit should not show any outward signs of
damage. If damaged, notify the common carrier
immediately.
2. Check your equipment and packing list. The standard cleaning unit should arrive equipped with the
following items (unless otherwise specified) and
any optional accessories which were ordered:
Equipment List
1. Console.
2. Waste tank.
3. Fuel pump assembly.
4. 100 ft. of 2” vacuum hose.
5. 1 vacuum hose connector.
6. 100 ft. of 1/4” high pressure hose with quick
connects.
7. 50 ft. water supply hose with quick connect.
8. Installation bolting kit.
9. Installation mounting plates.
10. Operation and service manuals for engine, solution
pump, and vacuum pump.
4
86313050 LEGEND GT
How to Use This Manual
Model:
Date of Purchase:
Serial Number:
Dealer:
Address:
Phone Number:
Sales Representative:
This manual contains the following sections:
The HOW TO USE THIS MANUAL section will tell you
how to find important information for ordering correct
repair parts.
Parts may be ordered from authorized dealers. When
placing an order for parts, the machine model and
machine serial number are important. Refer to the
MACHINE DATA box which is filled out during the
installation of your machine. The MACHINE DATA box
is located on the inside of the front cover of this manual.
The model and serial number of your machine is
located approximately where shown
The SAFETY section contains important information
regarding hazardous or unsafe practices for this
machine. Levels of hazards are identified that could
result in product damage, personal injury, or severe
injury resulting in death.
• How to Use This Manual
•Safety
• Installation
• Operations
• Maintenance & Service
•Parts List
The INSTALLATION section contains information on
how to properly install the unit in your vehicle.
The OPERATIONS section is to familiarize the operator
with the operation and function of the machine.
The MAINTENANCE section contains preventive maintenance to keep the machine and its components in
good working condition. They are listed in this general
order:
•Engine
• Vacuum Pump
• Solution Pump
• Drive Belts, Pulleys & Hubs
• Chemical Pump
• Hoses
• Exhaust Heat Exchanger
• General Service Adjustments
• Machine Troubleshooting
The PARTS LIST section contains assembled parts
illustrations and corresponding parts list. The parts lists
include a number of columns of information:
• REF – column refers to the reference number
• PART NO. – column lists the part number for
• PRV NO. – reference number.
• QTY – column lists the quantity of the part used
• DESCRIPTION – column is a brief description
• SERIAL NO. FROM – If this column has an (*)
• NOTES – column for information not noted by
NOTE: If a service or option kit is installed on your
machine, be sure to keep the KIT INSTRUCTIONS
which came with the kit. It contains replacement parts
numbers needed for ordering future parts.
NOTE: The manual part number is located on the
lower left corner of the front cover.
86313050 LEGEND GT
on the parts illustration.
the part.
in that area of the machine.
of the part.
and a Reference number, see the SERIAL
NUMBERS page in the back of your manual. If
column has two asterisk (**), call manufacturer
for serial number. The serial number indicates
the first machine the part number is applicable
to. The main illustration shows the most current
design of the machine. When a boxed illustration is shown, it displays the older design.
the other columns.
5
Safety
IMPORTANT SAFETY INSTRUCTIONS
When using this machine, basic precaution
must always be followed, including the following:
READ ALL INSTRUCTIONS BEFORE USING THIS MACHINE.
These symbols mean WARNING or CAUTION. Failure to follow warnings and
cautions could result in fatality, personal injury to yourself and/or others, or
property damage. Follow these instructions carefully!
Read the operator's manual before installing or starting this unit. Failure to adhere to instructions could result
in severe personal injury or could be fatal.
Operate this unit and equipment only in a well-ventilated area. Exhaust fumes contain carbon monoxide which
is an odorless and deadly poison that can cause severe injury or fatality. DO NOT run this unit in an enclosed area.
DO NOT operate this unit where the exhaust may enter any building doorway, window, vent, or opening of any type.
Gasoline is extremely flammable and its vapors can explode if ignited. Store gasoline only in approved
containers, in well-ventilated, unoccupied buildings away from sparks or flames. Never carry any gasoline or
flammable material in the vehicle. Fumes may accumulate inside the vehicle and ignite, causing an explosion.
DO NOT store any type of flammable material in the vehicle.
This unit must be operated with the vehicle or trailer doors open in order to ensure adequate engine ventilation.
DO NOT operate engine if gasoline is spilled. Avoid creating any ignition until the gasoline has been cleaned up.
Never use gasoline as a cleaning agent.
DO NOT place hands, feet, hair, or clothing near rotating or moving parts. Avoid any contact with moving
parts! Rotating machinery can cause injury or fatality.
Never operate this unit without belt guards. The high speed moving parts, such as belts and pulleys, should be
avoided while this unit is running. Severe injury, damage, or fatality may result.
DO NOT service this unit while it is running. The high-speed mechanical parts as well as high temperature
components may result in severe injury or severed limbs.
Never touch electrical wires or components while the engine is running. They can be sources of electrical
shock.
Engine components can get extremely hot from operation. To prevent severe burns, DO NOT touch these
areas while the engine is running or immediately after the engine is turned off.
DO NOT touch any part of the exhaust system while this unit is running. Severe burns may result.
Before servicing this unit, allow it to cool down. This will prevent burns from occurring.
Water under high pressure at high temperature can cause burns, severe personal injury, or fatality. Shut
down machine, allow to cool down, and relieve system of all pressure before removing valves, caps, plugs,
fittings, filters, and bolts.
Always wear hearing protection when unit is running. Always comply with your company’s Personal
Protection Equipment (PPE) plan. Always comply with local noise ordinance when operating units.
6
86313050 LEGEND GT
Safety
DO NOT leave the vehicle engine running while operating this unit.
Dangerous Acid, Explosive Gases! Batteries contain sulfuric acid. To prevent acid burns, avoid contact with skin,
eyes and clothing. Batteries produce explosive hydrogen gas while being charged. To prevent a fire or explosion,
charge batteries only in well ventilated areas. Keep sparks, open flames, and other sources of ignition away from
the battery at all times. Keep batteries out of the reach of children. Remove all jewelry when servicing batteries.
Before disconnecting the negative (-) ground cable, make sure all switches are OFF. If ON, a spark will occur at the
ground cable terminal which could cause an explosion if hydrogen gas or gasoline vapors are present. When
disconnecting the battery, ALWAYS disconnect the negative (-) terminal FIRST.
DO NOT smoke around the unit. Gas fumes may accumulate and be ignited. The battery is also extremely flammable. This will prevent possible explosions.
DO NOT damage the vehicle in any manner during installation. When routing fuel lines DO NOT place the
hose in any location where damage may occur to the hose or vehicle. Avoid any contact with moving parts, areas
of high temperature, brake lines, fuel lines, muffler, catalytic converter, or sharp objects.
Use only ProChem supplied fuel installation kits. Ensure to use the kit specific for the truckmount model and
van model being used. When traversing the vehicle floor with fuel lines, always use a bulkhead adapter. This will
prevent leakage and ensure that the hose is not punctured by vehicle vibration abrasion.
DO NOT exceed your vehicle's weight limit. The console with empty 60 gallon waste tank and accessories
weighs approximately 810 lbs (900 lbs. if mounted on water tank). Make certain to account for any additional accessories in your weight and balance calculations. Make certain that the vehicle has the correct axle rating. This will
prevent unsafe vehicle driving conditions.
We require high-back seats on all vehicles in which units are to be installed for head and neck protection.
We recommend using a metal partition between the seats and equipment.
DO NOT operate this unit without the water supply attached and turned on. The solution pump and other vital
components may be seriously damaged if this unit is permitted to operate dry without water.
Keep your vehicle work area clean. Wands, stair tools, and other accessories must be securely fastened before
driving the vehicle.
All high pressure hoses must be rated for 3000 PSI at 250°F. Thermoplastic hoses do not meet these specifications and should not be used. Severe burns and injury may result if the hoses do not meet these requirements.
The winterizing loop hose assembly, Part # 86260700, is for winterizing use only. If used improperly, live
steam may escape from this hose, causing it to whip around. Burns or injury may result.
Make certain that you receive complete training by the distributor from whom you purchased this unit.
This unit uses high pressure and temperature. Improper or irresponsible use may result in serious injury.
Do not modify this unit in any manner. Improper modification can cause severe personal injury or fatality.
CALIFORNIA PROPOSITION 65 WARNING: Engine exhaust from this product contains chemicals known to the
State of California to cause cancer, birth defects, or other reproductive harm. Running with out adequate water
supply could damage water pump. Ensure always to have an adequate water supply.
86313050 LEGEND GT
7
Safety
The following symbols are used throughout this guide as indicated in their descriptions:
Hazard Intensity Level
There are three levels of hazard intensity identified by signal words - WARNING and CAUTION and FOR SAFETY.
The level of hazard intensity is determined by the following definitions:
WARNING - Hazards or unsafe practices which COULD result in severe personal injury or death.
CAUTION - Hazards or unsafe practices which could result in minor personal injury or product or property damage.
FOR SAFETY: To Identify actions which must be followed for safe operation of equipment.
Report machine damage or faulty operation immediately. Do not use the machine if it is not in proper operating
condition. Following is information that signals some potentially dangerous conditions to the operator or the equipment. Read this information carefully. Know when these conditions can exist. Locate all safety devices on the
machine. Please take the necessary steps to train the machine operating personnel.
FOR SAFETY:
DO NOT OPERATE MACHINE:
Unless Trained and Authorized.
Unless Operation Guide is Read and understood.
In Flammable or Explosive areas.
In areas with possible falling objects.
WHEN SERVICING MACHINE:
Avoid moving parts. Do not wear loose clothing; jackets, shirts, or sleeves when working on the machine. Use
ProChem approved replacement parts.
8
86313050 LEGEND GT
Safety
CAUTION
Safety Labels
The following WARNING LABELS are found on your cleaning unit. These labels point out important Warnings and
Cautions which should be followed at all times. Failure to follow warnings and cautions could result in fatality,
personal injury to yourself and/or others, or property damage. Follow these instructions carefully! DO NOT remove
these labels.
NOTE: If at any time the labels become illegible, promptly replace them.
Caution Label
P/N 86352580
Installation on vehicle fuel door.
Caution Label
P/N 86186530
Lower Front Panel Decal
with warning labels
P/N 86309420
Warning Label
P/N 86186520
86313050 LEGEND GT
9
Installation
Dealer Responsibility
Your distributor from whom you purchased this mobile
cleaning unit is responsible for correct installation of
this machine. The dealer is also responsible for initial
training of your operators and maintenance personnel
in proper operation and maintenance of this unit.
Vehicle Requirements
1. The unit should NOT be mounted in any motor
vehicle of less than 1/2 ton capacityor 3/4 ton if
equipped with one or more auxiliary fresh water
tanks.
DO NOT exceed the vehicle’s axle weight limit.
Include the console, full tanks, accessories, and
operators in calculations.
2. If mounting in a trailer, make certain that trailer is
rated for the total weight of UNIT AND TRAILER.
Electric or hydraulic brakes should be provided,
and a strict compliance with any State and Federal
vehicle laws must be maintained.
3. The vehicle tires should have a load rating above
the combined vehicle and unit weight.
4. We do not recommend using flooring materials that
absorb water. This could result in rust and
corrosion of the vehicle floor.
5. Padding under rubber floor mats should be
removed before installing this unit.
Lifting Unit Onto Vehicle
Since console weighs approximately 600 lbs. pounds,
(690 lbs. if mounted on water tank) we recommend
using a forklift to lift unit onto vehicle. Position forks
under unit from front and make CERTAIN that forks are
spread to insert into frame slots.
Positioning Unit In Vehicle
Because vehicles vary in size and openings, individuals
have their own preference as to where they want their
units installed. We strongly recommend a side door
installation for this and DO NOT recommend a rear
door installation.
1. Enough space should be provided to assure
adequate engine ventilation and room for service
and maintenance.
2. The unit with waste tank and accessories must
NOT exceed vehicle's axle weight limit. An empty
60 gallon waste tank and console weighs 810 lbs
(900 lbs. if mounted on water tank).
3. DO NOT position the console closer than 12" from
bottom of driver and passenger seats.
NOTE: For individuals who wish to make an
engineering layout prior to positioning unit, refer to
"Dimensional Data" illustrations for waste tank and
console dimensions.
4. Be sure to consider all accessories and their
required space prior to positioning the console and
waste tank.
6. We highly recommend using a drip tray under
console (Part #86050370, or Part # 86050380 for
units mounted on a water tank).
7. If using a trailer, console should be positioned so
that it balances properly with respect to axle. Ten
percent (10%) of the overall unit weight, should be
on tongue.
Example: If loaded trailer weight is 2,000 lbs.,
tongue weight needs to be a minimum of 200 lbs.
to tow properly.
10
86313050 LEGEND GT
Installation
Bolting Down Unit And Waste Tank
NOTE: When positioning waste tank with respect to
console, hook up the vacuum hose to waste tank.
This will ensure that waste tank is positioned
correctly. Proceed once unit and waste tank are
positioned in vehicle in desired location.
Before drilling any mounting holes in vehicle floor,
make certain that when drilling, you will not do any
damage to fuel tank, fuel lines, or any vital
component which might affect operation or safety
of vehicle.
1. Using console and waste tank mounting holes as a
template, drill six 13/32" diameter holes for
mounting console and six more 13/32" diameter
holes for mounting waste tank.
2. Using installation hardware kit:
a. Insert six 3/8-16 x 2" hex head cap screws with
flat washers through mounting holes in console,
and six 3/8-16 x 2" hex head cap screws with flat
washers through mounting holes in waste tank.
Electrical Wiring
Ensure all electrical wiring and battery cables are free
from contact with any metal edge. Engine vibration
could cause metal edge to cut wiring and possibly
result in a fire. Be aware of where battery cables are
run.
b. Install mounting plates underneath vehicle floor.
c. Screw 3/8-16 hex head locknuts on mounting
screws and tighten them until console and waste
tank are firmly secured to vehicle floor.
86313050 LEGEND GT
11
Installation
39
1
2
"
33
7
8
"
CONSOLE
39
3
8
"
WASTE TANK
38
1
8
" WASTE TANK
31
31
32
" CONSOLE
22
3
8
"
6X Ø7/16" X 5/8" SLOT
37
1
8
"
2X 1
1
2
"
2X 6
3
16
"
2X 12
3
8
"
2X 2
3
32
"
2X 12"
2X 24"
59
1
2
"
6X Ø
13
32
"
TOP VIEW
FRONT VIEW
AND WASTE TANK ARE ALIGNED
ENSURE THAT VAC INLETS ON CONSOLE
1
2
"
11
16
"
7
1
4
"
15
3
32
"
7
1
2
"
Layout with 60 Gallon Waste Tank
12
86313050 LEGEND GT
67
13
16
"
LENGTH
38
3
8
"
WASTE
TANK
AUXILIARY WATER TANK
FRONT VIEW
TOP VIEW
WASTE TANK
CONSOLE
38
1
8
"
AND WASTE TANK ARE ALIGNED
ENSURE THAT VAC INLETS ON CONSOLE
2X 40
13
32
"
6X Ø
13
32
"
2X 12
3
8
"
2X 6
3
16
"
2X 1
11
16
"
1
2
"
37
1
8
"
11
16
"
3
7
8
" MIN.
6X Ø
3
8
"
34
25
32
"
2X 20
3
16
"
47
1
8
"
OVERALL
HEIGHT
40
17
32
"
7
21
32
"
4
9
16
"
7
21
32
"
2
7
32
"
Installation
Layout with 60 Gallon Waste Tank & Optional Auxiliary Water Tank
86313050 LEGEND GT
13
9X Ø7/16" X 5/8" SLOT
19
1
4
"
7
1
2
"
15
3
32
"
2X 12
3
8
"
2X 12"
59
1
2
"
LENGTH
ENSURE THAT VAC INLETS ON CONSOLE
AND WASTE TANK ARE ALIGNED
22
3
8
"
11
16
"
2X 6"
2X 1
11
16
"
2X 6
3
16
"
49
1
8
"
1
2
"
6X Ø
13
32
"
TOP VIEW
CONSOLE
WASTE TANK
33
3
8
"
CONSOLE
HEIGHT
50
1
8
"
FRONT VIEW
38
3
8
"
WASTE
TANK
31
31
32
"
2X 24"
4
31
32
"
Installation
Layout with 100 Gallon Waste Tank
14
86313050 LEGEND GT
2X 12
3
8
"
2X 40
13
32
"
67
13
16
"
LENGTH
ENSURE THAT VAC INLETS ON CONSOLE
AND WASTE TANK ARE ALIGNED
34
25
32
"
11
16
"
2X 20
3
16
"
2X 1
11
16
"
2X 6
3
16
"
49
1
8
"
1
2
"
50
1
8
"
6X Ø
3
8
"
3
31
32
" MIN.
6X Ø
13
32
"
TOP VIEW
CONSOLE
AUXILIARY WATER TANK
WASTE TANK
47
1
8
"
OVERALL
HEIGHT
40
17
32
"
FRONT VIEW
38
3
8
"
WASTE
TANK
16
9
16
"
2
7
32
"
7
21
32
"
Layout with 100 Gallon Waste Tank & Optional Auxiliary Water Tank
Installation
86313050 LEGEND GT
15
Installation
Waste Tank To Console Connection
NOTE: Before connecting any hoses to the waste
tanks, make certain the hose clamps are on each
hose.
1. Connect the section of 2-7/8" I.D. internal vac hose
between the 2-7/8" dia. vac outlet tube on the
waste tank and the vacuum pump relief valve on
the console. It may be necessary to cut this hose
to fit. Tighten the hose clamps.
2. Connect the 2" I.D. waste removal hose to the 2"
dia. tube at the bottom corner of the waste tank.
Cut to desired length. Install brass ball valve on
other end.
3. Connect 2-1/2" I.D. hose between waste tank
vacuum inlet (upper right of waste tank) and
vacuum inlet on lower side panel of console.
4. Connect the 3/16" blue hose from the water box to
the lower flare fitting (angled downward) on the
waste tank.
5. Run the 5/8" water box overflow hose through the
van floor. Prior to drilling through the van floor,
ensure that no damage will occur in drilling area.
Ensure that you are in compliance with all local
environmental laws.
6. Connect the console engine shut-off cord to the
waste tank level sensor cord.
7. Connect the 3/16" blue hose from the solution
temperature control valve to the other flare fitting
(angled downward) on the waste tank.
Fire Extinguisher
We recommend that a fire extinguisher, preferably
rated for A, B, & C type fires, be installed inside the
vehicle.
Fuel Pump Assembly Installation
Before drilling the fuel line holes in the vehicle
floor, make certain that when drilling you will not do
any damage to the fuel tank(s), fuel lines, brake
lines, heat shields, or any other vital component
which might affect the operation or safety of the
vehicle.
Do not mount this assembly, any hoses or components near the catalytic converter, exhaust, or any
areas of high temperature. Avoid any contact with
moving parts, areas of high temperature, brake
lines, fuel lines, muffler, catalytic converter, or
sharp objects.
1. Determine the position where the fuel pump
assembly will be mounted. Check to ensure that
the power cord length will support the mounting
location. The pump should be mounted as low as
possible and still be protected by the frame from
road hazards. Mount the fuel pump with the
discharge side of the pump higher than the
suction side to eliminate the possibility of
trapped air in the pump. Additional mounting
holes are provided to allow for different mounting
options.
2. Drill a 5/8" (.625) diameter hole in the vehicle floor
for routing the fuel pump power cord to the truckmount console. Check to ensure that the cord
length will support the location of the hole.
3. Route the power cord and install the hole grommet.
4. Do not connect the power cord to the truckmount
console wiring harness until installation is
complete.
16
86313050 LEGEND GT
Installation
TO CONSOLE
USE AS NEEDED
BULKHEAD ADAPTER
BULKHEAD NUT
HOSEBARB ELBOW
HOSEBARB ELBOW
HOSE MOUNTING CLAMPS
FUEL HOSE
HOSE CLAMP
VEHICLE FLOOR
5/8" DIA HOLE
LOCTITE
BYPASS FUEL FILTER
FUEL HOSE FROM
BULKHEAD GASKET
BULKHEAD GASKET
Van Bulkhead Installation
1. Select a location on the vehicle floor to drill the hole for the bulkhead adapter. This location should be situated
in a position that eliminates the possibility of fuel line contact by either the operator(s) or accessories during the
working hours or maintenance periods. Make certain that the supplied hoses will reach the location and work
with the configuration you choose.
2. Drill a 5/8" (.625) diameter hole through the vehicle floor at the installation point chosen for the bulkhead.
3. Install the 1/8 NPT bulkhead adapter by inserting the adapter and tightening the nut on the opposite side of the
van floor.
4. Attach the 1/8 NPT x 1/4 Hosebarb 90 degree elbow to the bulkhead inside the van to connect the fuel system
to the console.
5. Attach the 1/4" fuel hose from the console to the 1/4” Hosebarb 90 degree elbow on the bulkhead.
86313050 LEGEND GT
17
Installation
CHECK VALVE
5/16" SUPPLY HOSE
BYPASS FUEL FILTER
HOSE MOUNTING CLAMP
FRONT OF VAN
BULKHEAD CONNECTOR
BUSHING
ELECTRICAL CORD
PUMP ASSEMBLY
ELECTRICAL FUEL
USE AS NEEDED
5/16" SUPPLY HOSE
5/16" SUPPLY HOSE
FUEL SUPPLY
RETURN TO VEHICLE
FROM VEHICLE
FUEL SUPPLY
FUEL FLOW
FUEL FILTER
1/4" RETURN HOSE
Fuel Supply & Return Line Installation
(Underneath Van)
1. Attach the 1/8 NPT x 5/16 Hosebarb 90 degree elbow to the bulkhead adapter underneath the van to be used
for the fuel supply line.
2. Cut to length the 6' piece of 5/16" 50 PSI fuel hose used for the supply line from:
a. Bulkhead adapter to the outlet side of the bypass fuel filter.
b. Inlet side of the bypass fuel filter to the discharge side of the fuel pump.
c. Inlet side of the fuel pump to the outlet side of the inline fuel filter.
3. Cut to length the 6' piece of 1/4" fuel line to connect the bypass fuel filter with the fuel tank return using the
appropriate fuel tap kit.
4. Check all hose clamps for tightness.
NOTE: Fuel tap kit installation instructions are found with appropriate fuel tap kit. Refer to Fuel Tap Kit
Information Sheet (8.634-994.0)
18
86313050 LEGEND GT
Battery Connection
Dangerous Acid, Explosive Gases! Batteries
contain sulfuric acid. To prevent acid burns, avoid
contact with skin, eyes, and clothing.
Batteries produce explosive hydrogen gas while
being charged. To prevent a fire or explosion,
charge batteries only in well-ventilated areas. Keep
sparks, open flames, and other sources of ignition
away from the battery at all times. Keep batteries
out of the reach of children. Remove all jewelry
when servicing batteries.
Before disconnecting the negative (-) ground cable,
make sure all switches are OFF. If ON, a spark will
occur at the ground cable terminal which could
cause an explosion if hydrogen gas or gasoline
vapors are present. When disconnecting the
battery, ALWAYS disconnect the negative (-)
terminal FIRST.
Installation
1. Attach the red positive (+) battery cable from the
console starter solenoid to the positive (+) terminal
on the battery and tighten the holding nut.
2. Next, attach the black negative (-) battery cable
from the console ground to the negative (-) terminal
on the battery and tighten the holding nut.
86313050 LEGEND GT
19
Installation
Initial Operational Settings
NOTE: Due to temperature and altitude changes, the
optimal settings for each truckmount must be
adjusted after installation. Failure to make these
adjustments may lead to poor unit performance and
premature component failure.
Vacuum Pump
The maximum vacuum pressure obtainable at full
throttle should be 13"Hg. If the unit is drawing a
stronger vacuum (at full sealed suction) than 13" Hg,
adjust the vacuum relief spring to 13" Hg.
Engine
Set RPM Values as shown below. Refer to Engine
Operation Manual for adjustment instructions.
THROTTLE LOAD RPM*
Idle None 1400 rpm
Full
Full None 2950 rpm
*±50 rpm tolerance
13" Hg. Vacuum
500 psi pressure
2850 rpm
20
86313050 LEGEND GT
Technical Specifications
ITEM DIMENSION/CAPACITY
Engine speed
Water pump rpm 1680 rpm
Vacuum pump rpm 3385 rpm
Water flow rate 3.5 GPM (maximum)
Solution pump pressure 1200 PSI (maximum)
Vacuum relief valve 13” Hg
Waste tank capacity 60 gallons / 100 gallons
Console weight 600 lbs. (690 lbs. If mounted on water tank)
Console weight with:
60 gallon waste tank & accessories
Console weight with:
60 gallon waste tank, water tank & accessories
Console weight with:
100 gallon waste tank & accessories
Console weight with:
100 gallon waste tank, water tank & accessories
TORQUE VALUES
Engine rear / vac pump pulley 25 foot lbs
Engine front / water pump pulley 9 foot lbs
2950 rpm
1400 rpm (idle speed)
810 lbs. with empty waste tank
1252 lbs. with full waste tank
900 lbs. with empty waste and water tanks
1342 lbs. with full waste tank, and empty water tank
1842 lbs. with full waste and water tanks
820 lbs. with empty waste tank
1445 lbs. with full waste tank
910 lbs. with empty waste tank
1535 lbs. with full waste tank, and empty water tank
2035 lbs. with full waste and water tanks
Operations
86313050 LEGEND GT
21
Operations
Fuel Requirements
Use unleaded gasoline ONLY. DO NOT use any
gasoline additives. We recommend the use of clean,
fresh, unleaded gasoline intended for automotive use.
High octane gasoline should NOT be used with the
engine on this unit. These engines are NOT designed
to use E-85 or Flex Fuels.
Engine Oil Requirements
Use high quality detergent 10W-30 oil of at least API
(American Petroleum Institute) service class SG, SH,
SJ or higher.
NOTE: Using a lower service class oil or extending oil
change intervals longer than recommended can
cause engine damage.
NOTE: Synthetic oils meeting the listed
classifications may be used with oil changes
performed at recommended intervals. However to
allow piston rings to properly seat, a new or rebuilt
engine should be operated for at least 50 hours using
standard petroleum based oil before switching to
synthetic oil.
Altitude Requirements
Engines perform differently with increases/decreases in
altitude. Be sure to check engine speeds during initial
installation. See engine speeds in Technical Specifications section.
NOTE: To ensure correct engine operation at
altitudes above 1525 meters (5000 ft.), it may be
necessary to have an authorized dealer install a
special high altitude jet kit in the carburetor. If a high
altitude kit has been installed, the engine must be
reconverted to the original jet size, before it is
operated at lower altitudes, or overheating and
engine damage can result.
Chemical Requirements
This cleaning unit, due to its chemical injection pump
design, can be used with a variety of water-diluted
chemical compounds (either acidic or alkaline),
depending on the job to be done. However, to obtain
optimum results with this unit, we recommend using the
PROCHEM line of chemicals. For information on using
the cleaning compounds, refer to the chemical manual.
22
86313050 LEGEND GT
Operations
Water Requirements
Hard water deposits will adversely affect the plumbing
and heat exchange systems on this unit. The map
below will give you an idea of where areas of high water
hardness may occur. However, any water supply
obtained from a well is almost always hard water and a
water softener will be needed to protect your equipment.
NOTE: Equipment malfunction or component failure
caused by hard water scaling is NOT covered under
the warranty.
If you are operating this unit in an area where the unit
will be using water in which the harness exceeds 3-1/2
grains, we highly recommend a suitable water softener
be installed. If using a water softener, it must have a
five (5) GPM (or greater) flow capacity without any hose
constrictions.
Using a water softener will reduce maintenance and
decrease down time caused by hard water scaling. It
will also allow cleaning chemicals to be more effective
in lower concentrations
If you require a water softener, your dealer has a model
to meet your needs. Please contact your nearest
distributor for information, price, and abailability.
86313050 LEGEND GT
23
Operations
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Components
24
86313050 LEGEND GT
Components
Operations
1. VACUUM GAUGE
This gauge indicates in inches of mercury how
much vacuum the system is producing at any given
time.
2. SOLUTION PRESSURE GAUGE
This gauge registers the amount of pressure in the
system.
3. WASTE PUMPOUT
This switch actuates the optional waste pumpout.
4. SOLUTION TEMP GAUGE
This gauge measures the temperature of the
cleaning solution exiting the machine.
5. SOLUTION PUMP SWITCH
This switch serves to energize the magnetic clutch,
to turn the pump on and off. Turn clockwise to
activate the pump and counter clockwise for deactivating the pump.
6. CHOKE
The choke is for restricting air to the carburetor,
this enriches the fuel mixture. The primary
purpose is for starting in cold temperatures. When
the cable is pulled out air is restricted, when
pushed in the engine is in run position.
Do NOT run engine with choke pulled out.
7. IGNITION SWITCH
The ignition switch controls the power for the
machine. To turn the machine on, turn solution
pump switch counterclockwise to override and
hold. Turn key clockwise until engine starts and
release. Wait 5 seconds then release override
switch. To stop engine rotate key to OFF position.
8. THROTTLE
The throttle is used to set the speed of the engine
(rpm). The engine speed (rpm) may be increased
by releasing the collar lock, pushing in the red
button on the end of the handle, and pulling the
handle straight out. Engine speed may be changed
in smaller increments by rotating the throttle handle
clockwise or counter-clockwise. The collar lock can
be tightened to prevent the throttle from slipping
and changing the engine speed.
9. HOUR METER
The hour meter records the number of hours the
unit has run. This serves as a time recorder for
servicing the machine.
10. CIRCUIT BREAKERS
These serve to protect the circuits from electrical
spikes and over loads and protects wires from
damage and fire.
11. TEMPERATURE BALANCE ORIFICE
The temperature balance orifice helps to balance
and stabilize the solution temperature within the
system.
12. SOLUTION PRESSURE REGULATOR
The pressure regulator sets the pressure of the
solution system. This spring loaded valve can be
adjusted up or down. The pressure is increased by
turning the valve clockwise, or reduced by turning
the valve counter clockwise. (This valve must be
maintained in accordance with this manuals maintenance table.)
13. LUBRICATION CUP
The lubrication cup allows lubricant spray to reach
the vacuum blower.
86313050 LEGEND GT
25
Operations
14. SOLUTION TEMPERATURE CONTROL
VALVE
This valve allows the operator to control the
solution temperature by bypassing hot water to the
waste tank, for low temperature cleaning such as
upholstery. Turning the valve counter clockwise
opens the valve. Turning clockwise closes the
valve and has the effect of stopping water from
bypassing.
15. CHEMICAL CHECK VALVE
The chemical check valve allows chemicals to
enter the system and travel in a singular direction
to the wand. The chemical check valve prevents
chemicals from traveling upstream into the solution
system of the unit.
16. SOLUTION OUTLET
The solution outlet is the connecting point for the
high pressure solution hoses. This outlet is a quick
disconnect that allows hoses to be plugged into the
unit.
17. SOLUTION SCREEN
The solution screen is located on the front of the
machine. The function of this screen is to trap
foreign particles from exiting the machine and
plugging the orifices of the cleaning tools. This
screen is part of the machine maintenance
cleaning.
19. WATER INLET
This quick connect allows the water supply hose to
be connected to the unit.
20. VACUUM INLETS
The vacuum inlets serve as connecting points for
vacuum hoses.
21. CHEMICAL PRIME CONTROL VALVE
This valve allows the chemical to circulate through
the chemical system with little or no restriction. It
also purges out air that may be trapped in the lines
and cavities of the chemical pump. By turning the
valve clockwise the injection system is enabled.
22. CHEMICAL METERING VALVE
The chemical metering valve regulates the amount
of chemical that is injected into the system.
Clockwise rotation of the knob closes the valve.
Counter clockwise rotation opens the valve,
allowing more chemical to enter the system.
23. FLOW METER
The flow meter is a gauge to indicate how much
liquid chemical is being introduced in the water
system. The quantity can be increased by turning
the chemical flow knob counter clockwise.
18. EXHAUST
Exhaust fumes contain carbon monoxide which is
an odorless and deadly poison that can cause
severe injury or fatality. DO NOT run this unit in an
enclosed area. DO NOT operate this unit where
the exhaust may enter any building doorway,
window, vent, or opening of any type.
26
86313050 LEGEND GT
Operations
VACUUM
PUMP
VACUUM
SILENCER
VACUUM
RELIEF
VALVE
LEVEL SENSOR
(ENGINE SHUT-OFF SWITCH)
FILTER
HOT AIR TO
HEAT EXCHANGER
VACUUM
INLET
STRAINER
WASTE TANK
LUBRICATION
CUP
VACUUM
GAUGE
Vacuum System
The engine turning the vacuum pump generates
vacuum. The air is channeled in one side of the
vacuum pump, compressed and discharged on the
opposite side, creating airflow.
The movement of air is used to do the work necessary
for the extraction process. A vacuum nozzle applied to
the carpet surface removes moisture, dirt and spent
chemicals. These elements are conveyed back to a
separating tank utilizing hoses and the force of air.
Particles of moisture and dirt are separated in the
vacuum tank using a series of changes in direction and
velocity. The air is then filtered and rushes into the
vacuum pump.
The vacuum pump compresses and heats the incoming
air. The hot discharged air is forced down stream into a
silencer for noise abatement. After exiting the silencer,
this hot air is mixed with hot air exhaust gases from the
engine. This mixture of hot air and gases are then
forced through 3 radiators serving as heat collectors.
Heat from the engine and vacuum pump is then transferred into the plumbing system raising the water
temperature for better cleaning.
The vacuum pump speed is factory set to maximize
vacuum pressure and provide sustained system life.
Do not alter the vacuum speed outside the recommended range shown in the Technical Specifications
section.
86313050 LEGEND GT
27
Operations
Heat Exchanger
Always wear hearing protection and proper
personal protection equipment when operating
unit.
Water Pumping and Heat Transfer System
Cold water enters the console through the water inlet.
When the water box is full the valve will automatically
shut off.
Water then flows from the water box, through the
strainer, into the solution pump. The water is pumped to
the pressure regulator manifold, which provides and
maintains the desired pressure setting.
The pressure regulator manifold includes a pulse hose,
which helps reduce pressure spikes from the pump.
A certain amount of water is by-passed from the
pressure regulator due to over pumping capacity of the
solution pump. Water that is not called for in the
cleaning process is channeled through a copper heater
core in the front of the heat exchanger box. This bypass
water circulates several times through the heater core
pre-warming the water.
The water temperature in the plumbing system is raised
for better cleaning. This happens in the heat
exchanger. The heat exchanger is made up of three
stages. These three stages are engine exhaust stage,
the mixing stage, and the pre-warming stage.
The angled rear heat exchanger core receives its heat
only from the engine exhaust gases. This core
becomes extremely hot and should not be touched
while the machine is in operation. Allow the machine to
cool down completely before attempting to service this
area.
The middle core receives its heat from the mixing of
both the engine exhaust and the vacuum pump
exhaust. The vacuum pump heats incoming air as it is
compressed. This hot air is mixed with the hot engine
exhaust gases exiting the angled rear core. This
mixture of hot air and gases is then forced through the
middle core and on through the front heat exchanger
core.
The front core continues to extract heat from the mixed
gases; but, this heat is used to pre-heat the water box
as a preliminary hot water reservoir.
The gases coming from the vacuum pump and the
engine exhaust are forced through the middle and rear
heater core creating the hottest area of the heat
exchanger box, and increasing the heat transfer to the
circulating water.
The hot water passes to the solution outlet manifold
where cleaning chemicals are injected from the
chemical pulse pump. This manifold serves as a
connecting point for the high-pressure hoses. Also a
check valve is located in this outlet manifold prohibiting
chemicals from backing up into the system.
The cleaning solution then passes through highpressure solution hoses and is distributed by the
cleaning tool to a surface that is being cleaned,
completing the water pumping and heating cycle of the
cleaning unit.
28
86313050 LEGEND GT
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