Saphire Scientific 370 SS User manual

Service and Operation Manual
2604 Liberator, Prescott, AZ 86301 1-928-445-3030

I SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
Congratulations on your purchase of the
MODEL 370 SS® Truck mount cleaning
unit. This instruction/parts manual is a
guide for operating and servicing your
SAPPHIRE SCIENTIFIC Truck mount
unit.
Proper operation and service are necessary to
ensure the outstanding performance of this unit.
When properly maintained, your Truck mount
will have a long and trouble-free life.
The following service methods outlined in this
manual are detailed in a manner that operation
and servicing may be performed properly and
safely. Because service levels vary due to the
skill of the mechanic, tools and parts
availability, ensure that prior to attempting any
repair, you are familiar with this equipment and
have the proper tools. Any questions regarding
the operation, service, or repair of this unit
should be directed to your nearest SAPPHIRE
SCIENTIFIC dealer.
The headings WARNING and CAUTION are
utilized to warn you that steps must be taken to
prevent personal injury or damage to the
equipment. Please make sure that you have read
and understand these instructions entirely before
proceeding with the operation of this unit.
THIS UNIT MUST BE INSTALLED BY
THE DEALER THAT YOU PURCHASED
IT FROM IN ACCORDANCE WITH THE
SAPPHIRE SCIENTIFIC INSTALLATION
PROCEDURES.
BE SURE TO FILL OUT THE WARRANTY
CARD ONLINE AT WWW.SAPPHIRE
SCIENTIFIC.COM
Record your units serial number here for future
reference or if you should need to contact the
factory in the future for any reason.
S/N:
This service and operations manual is written
specifically for SAPPHIRE SCIENTIFIC
MODEL 370 SS® Truck mount Cleaning units
manufactured by:
SAPPHIRE SCIENTIFIC
2604 Liberator
Prescott, AZ 86301
USA
The information contained in this document is
subject to change without notice and does not
represent a commitment on the part of
SAPPHIRE SCIENTIFIC.
All rights reserved. Copyright 2009 by
SAPPHIRE SCIENTIFIC. No part of this
work may be used or reproduced in any form or
means without the express written consent and
permission of SAPPHIRE SCIENTIFIC.
Published by SAPPHIRE SCIENTIFIC.
First printing: May 2009
Revised: August 2010; Rev A
November 2010; Rev B
January 2012; Rev C
June 2012; Rev D
November 2012; Rev E
July 2014; Rev F
Printed in USA
MODEL 370 SS® MANUAL
PART# 49-038
s

II SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
SAPPHIRE SCIENTIFIC LIMITED WARRANTY
Sapphire Scientific Model MODEL 370 SS
What Does This Warranty Cover?
This warranty covers the Sapphire Scientific Model 370SS and is provided to the original purchaser only.
How Long Does This Warranty Last?
This warranty runs for:
Two (2) years from the date of installation on parts and labor (Excluding normal maintenance items.) Factory installed
original belts are covered for 500 hours. Water box, recovery tank and frame are covered for five years. All other
components including seals, o-rings and electrical components are covered for the entire two year warranty period.
What Sapphire Scientific Will Do:
If a defect in materials or workmanship occurs within the warranty period, Sapphire Scientific at its election will repair
or replace the defective part at no charge.
What This Warranty Does Not Cover:
This warranty does not cover or apply to defects due directly or indirectly to misuse, abuse, disassembly, alteration,
corrosive chemicals, improper voltage, improper fuel, fire, flood, negligence, accident, improperly or incorrectly performed
maintenance or repair, or failure to perform necessary or recommended maintenance or repair (See your Owner’s Manual) or
if the use of this product is not in compliance with the instructions and specifications for its use. This warranty does not
cover normal maintenance items such as air and oil filters, lubricants and tune up parts. Paint is not covered. Water box,
recovery tank and frame are covered for five years. All other components including seals, o-rings and electrical components
are covered for the entire two year warranty period. We limit all implied warranties to:
Two (2) years from the installation date on parts and labor. It is strongly recommended that this truck mount be used
with, and only with, Sapphire Scientific Chemicals and as directed by label instructions on chemical bottles.
OTHER THAN THE WARRANTIES PROVIDED HEREIN, SAPPHIRE SCIENTIFIC MAKES NO EXPRESS OR
IMPLIED, ORAL OR WRITTEN WARRANTIES WITH RESPECT TO THIS PRODUCT OR WORKMANSHIP AND
ALL WARRANTIES IMPLIED BY LAW INCLUDING ANY WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE ARE LIMITED TO THE DURATION OF THIS WARRANTY. Some states do not
allow limitations on how long an implied warranty lasts, so the above limitations may not apply to you. WE SHALL IN
NO EVENT BE LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY OR FOR INCIDENTAL,
CONTINGENT, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING FROM USE OF OUR PRODUCTS. Some
states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or
exclusion may not apply to you.
How Do I Get Service?
In order to be eligible for service under this warranty you MUST do the following: (a) fill out the warranty registration
card on-line within thirty (30) days of the installation of our product; (b) have your dealer write or call for a return
material authorization (RMA); and (c) have the serial number and original proof of installation date available. Proof of
proper maintenance may be required before warranty is granted.
Contact us at:
Sapphire Scientific
2604 Liberator, Prescott, AZ 86301
Phone: [phone]
If our dealer uncovers a defect we will repair or replace the product, at our election. Ground shipping and transportation costs
will be covered by the manufacturer. Returning defective parts to the manufacturer, if required, shall be the responsibility of
the purchaser. Warranty may be denied if defective parts are not returned within the allotted 30 days. If it is determined that
there is no defect in the product, or that the defect resulted from causes not within the scope of our warranty, then the product
will be repaired or replaced only at your request and at your expense and you must bear all shipping costs.
How Does State Law Apply?
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
.

III SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
Table of Contents
SECTION ONE: GENERAL INFORMATION 1
1. SAFETY 2
Safety, Specifications, Installation, Fuel, Engine Oil, Chemical, Water Requirements
2. RECEIVING YOUR TRUCKMOUNT UNIT 8
Dealer Responsibility, Acceptance of Shipment, Equipment Listing, Optional Equipment
SECTION TWO: INSTALLATION 9
3. INSTALLATION 10
Lifting the Unit into the Vehicle, Positioning the Unit into the Vehicle, Fastening Down the Unit and
Waste Tank, Dimensional Diagrams, Installation of Fuel Lines, Trailer Fuel Tank and Fuel Line
Installation, Battery Connection, Fire Extinguisher, Console to Waste Tank Connection
SECTION THREE: OPERATION 14
4. SYSTEMS 15
Water Pumping System, Heat Transfer System, Vacuum System, Chemical System
5. OPERATION 18
Equipment setup, Instrumentation, Starting Your Unit, Priming the Chemical Pump, Waste Pump,
Operation, Cleaning, Upholstery Cleaning, Stair Tool Cleaning, Flood Restoration, Shut Down and
Daily Maintenance, Freeze Protection.
SECTION FOUR: MAINTENANCE and SERVICE 25
6. MAINTENANCE CHART 26
7. MAINTENANCE 27
8. GENERAL SERVICE ADJUSTMENTS 32
9. TROUBLESHOOTING 35
SECTION FIVE: PARTS and ACCESSORIES 41
10. ILLUSTRATED PARTS LISTINGS 42
11. ACCESSORIES 67

1 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
SECTION 1:
GENERAL INFORMATION
1. SAFETY
Safety 2
Specifications 5
Installation requirements 6
Fuel requirements 6
Engine oil requirements 6
Chemical requirements 7
Water requirements 7
2. RECEIVING YOUR TRUCKMOUNT UNIT
Dealer responsibility 8
Acceptance of shipment 8
Equipment listing 8
Optional equipment 8

2 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
1. SAFETY
For Your Safety!
The following WARNING labels are on your
MODEL 370 SS® console. These labels point
out important Warnings and Cautions, which
must be followed at all times. Failure to follow
warnings could result in personal injury or
fatality to yourself and/or others or property
damage. Please follow these instructions
carefully! DO NOT remove these decals
.

SECTION 1
3 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
!
1. Read the operator’s manual before
starting this unit.
Failure to adhere to instructions could result in
severe personal injury or could be fatal.
2. 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 death. DO NOT run this
unit in an enclosed area. DO NOT operate this
unit where the exhaust may enter a building
doorway, window, vent or other opening.
3. Gasoline is extremely flammable and its
vapors can explode if ignited.
Store gasoline only in approved containers, in
well-ventilated, unoccupied buildings and
away from sparks or flames. Never carry
gasoline or any flammable materials in the
vehicle. Fumes could accumulate inside of the
vehicle and ignite, causing an explosion.
4. This unit must be operated with the vehicle
doors open in order to ensure adequate
ventilation to the engine.
5. DO NOT operate unit if gasoline is spilled.
Do not turn ignition switch until the gasoline
has been cleaned up. Never use gasoline for
cleaning purposes.
6. DO NOT place hands, feet, hair, clothing or
any body parts near rotating or moving parts.
Rotating machinery can cause severe injury or
death.
7. NEVER operate this unit without belt and
safety guards. High speed moving parts, such
as belts and pulleys, should be avoided while
the unit is running. Severe injury, fatality or
damage may result.
8. NEVER service this unit while it is running.
High speed mechanical parts as well as high
temperature components may result in injury or
severed limbs.
9. Engine components will be extremely hot
from operation. To prevent severe burns, DO
NOT touch these areas while the unit is
running or shortly after the unit is shut off.
10. DO NOT touch any part of the exhaust
system while the system is running or for 20
minutes after the unit is shut off. Severe burns
could result.
11. Water under high pressure at high
temperature can cause burns, severe
personal injury, or fatality. Shut down unit,
allow to cool down and relieve system of all
pressure before removing caps, valves, plugs,
fittings, filters or hardware.
12. NEVER leave the vehicle engine running
while the unit is in operation.
13. Battery acid contains sulfuric acid. To
prevent acid burns, avoid contact with skin,
eyes and clothing. Batteries also produce
explosive hydrogen gases while charging. To
prevent fire or explosion, charge batteries only
in a well ventilated area. Keep sparks, open
flames, as well as other sources of ignition
away from battery at all times. Remove all
jewelry prior to servicing batteries. Keep
batteries out of the reach of children.
Before disconnecting the negative (−) ground
cable, ensure that all switches are in the off
position. If on, a spark could occur at the
ground connection terminal which could cause
an explosion if hydrogen gas or gasoline
vapors are present. ALWAYS disconnect the
negative (−) terminal first.
14. DO NOT smoke around the machine. Gas
fumes could accumulate and ignite. Battery
gases are extremely flammable. This will
prevent possible explosions.

SECTION 1
4 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
15. DO NOT damage the vehicle in any way
during the installation. When routing fuel lines
DO NOT configure the hose in any locations
where the hose or vehicle could be damaged.
Avoid contact with moving parts, hot surfaces,
brake lines, fuel lines, catalytic converters,
exhaust pipes, mufflers or sharp objects.
16. NEVER cut or splice any of the vehicle
fuel lines during fuel line installation. This will
result in fuel leaks and potentially dangerous
conditions. Use only the provided fuel hose for
fuel lines. When going through the vehicle
floor with fuel lines, always utilize bulkhead
adaptors. This will prevent fuel leaks and
ensure that hoses are not punctured by vehicle
vibration abrasion.
17. DO NOT exceed your vehicles weight
limit. The standard 370 installation weighs
approximately 1000lbs with an operating
weight of over 1600lbs. Make certain that the
vehicle has the correct axle rating. This will
prevent unsafe or hazardous driving conditions.
18. High back seats are required for all vehicles
that units are to be installed for head and neck
protection. Metal partitions between the seats
and equipment are strongly recommended.
19. DO NOT operate this unit without the
water supply on and attached. The water pump
and other vital components could be seriously
damaged if the unit is operated dry. This unit is
equipped with a low pressure shut down
switch, which should NOT be bypassed.
20. Always keep your vehicle clean and
orderly. Wands, tools and accessories must be
securely stowed while driving the vehicle.
21. All high-pressure hoses must be rated at
3000 PSI and have a heat rating of 250 degrees
F. Thermoplastic hoses do not meet this criteria
and should never be used. Severe burns and
other injuries could result if hoses do not meet
these requirements.
22. Ensure that you have received proper
training from the distributor that you purchased
the unit from prior to operation.
23. This unit produces high pressure and high
temperatures. Improper use could result in
serious injury.
24. DO NOT modify this unit in any manner.
Any modification could result in serious injury
or fatality.
25. California Proposition 65 Warning: Engine
exhaust from this product contains chemicals
known by the State of California to cause
cancer, birth defects, or other reproductive
harm.

SECTION 1
5 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
SPECIFICATIONS
Engine Speed 3000 rpm (High Speed No Load)
1400 rpm (Idle No Load)
Water Pump RPM 1479 rpm
Vacuum Pump RPM 3387 rpm
Water Flow Rate 3.4 GPM (maximum)
Water Pump Pressure 1500 PSI (maximum)
Vacuum Relief Valve 14 in. Hg
Waste Tank Capacity (at shut-off) 75 gal.
Console Weight 652 lbs.
Console Weight (with standard waste tank & hoses) 966 lbs.
Operating Weight (full water box & standard waste tank) 1630 lbs.
TORQUE VALUES
Engine Hub Rear 180 inch/lbs. 15 ft/lbs.
Engine Hub Front 180 inch/lbs. 15 ft/lbs.
Vacuum Pump Hub 180 inch/lbs. 15 ft/lbs.
JET SIZING
SAPPHIRE SCIENTIFIC recommends that the total floor tool tip size does not exceed
#4. Using larger jet sizes on your MODEL 370 SS® unit may reduce cleaning
temperatures.

SECTION 1
6 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
INSTALLATION
REQUIREMENTS
Prior to beginning the installation, read the
ENTIRE “Installation” section of this manual.
Since the MODEL 370 SS® Truck mount unit
weighs (with waste tank and accessories)
approximately 970 lbs., please adhere to the
following recommendations prior to installing
the unit.
1. The unit should NOT be installed in any
motor vehicle rated less than ½ ton capacity.
!
The console and waste tank with accessories
must NOT exceed the vehicle’s axle weight
limit.
2. If mounting the unit in a trailer, ensure that
the trailer is rated for the total weight of the unit
and trailer. Electric or hydraulic brakes must
be provided, and strict compliance with all State
and Federal laws must be maintained.
3. If mounting in a trailer, the MODEL 370 SS®
console must be positioned so that it balances
properly with respect to the trailer axle. Ten
percent (10%) of the unit’s total overall weight
(w/o accessories or water) should be on the
tongue. This unit has an air cooled engine, and
adequate ventilation must be provided to
prevent overheating.
4. The vehicle tires must have a load rating in
excess of the combined unit and vehicle weight.
5. SAPPHIRE SCIENTIFIC does not
recommend using any type of flooring materials
that absorb water. This condition will result in
rust and corrosion of the vehicle floor.
6. Insulation under rubber mats should be
removed prior to installation of the unit.
FUEL REQUIREMENTS
Use unleaded fuel ONLY. Use only fresh,
clean unleaded gasoline with a minimum octane
rating of 87. Do Not use high octane gasoline.
Gasoline with up to, not exceeding, 10% ethanol
is acceptable.
NOTE: Using other gasoline/alcohol blends
including E20 and E85 will cause damage to
engine components and will void warranty.
ENGINE OIL REQUIREMENTS
Use high-quality oil of at least API (American
Petroleum Institute) service class SG, SH, SJ or
higher. Do not use additives. High quality 30W
oil is recommended. A 10-30 synthetic blend
may be used after 50 hours of operation for a
new or rebuilt engine to allow the piston rings to
properly seat. It is never recommended to
extend oil change intervals past 100 hours.
Engine oil capacity
1.7 L
1.8 US qts
Tightening torque
Drain Plug
13.6 N·m
1.4 kgf·m
10.0 lbf·ft
NOTE: Using lower service class oil or
extending oil change intervals longer than
recommended can cause engine damage.

SECTION 1
7 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
CHEMICAL REQUIREMENTS
The SAPPHIRE SCIENTIFIC MODEL 370
SS® Truck mount unit’s unique last step chemical
injection system can be used with a wide variety
of water diluted chemical compounds, either
acidic or alkaline, depending on the work to be
performed. We recommend using only
SAPPHIRE SCIENTIFIC brand chemistry.
WATER REQUIREMENTS
Because hard water deposits will damage the
plumbing and heat exchange systems on this unit,
SAPPHIRE SCIENTIFIC recommends that a
high quality water softener be used in areas where
the water hardness exceeds 3½ grains. If a water
softener is used, it must have a flow capacity of at
least five (5) GPM or greater, without any hose
constrictions.
The use of a water softening system will reduce
maintenance and reduce down time caused by
hard water scaling. It will also enhance the
performance of cleaning chemicals, which will
result in greater efficiency in lower concentrations

SECTION 1
8 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
2. RECEIVING YOUR
TRUCKMOUNT UNIT
DEALER RESPONSIBILITY
THE SAPPHIRE SCIENTIFIC DEALER
THAT YOU PURCHASED THIS
TRUCKMOUNT CLEANING UNIT FROM IS
RESPONSIBLE FOR THE PROPER
INSTALLATION OF THIS MACHINE. THE
DEALER IS ALSO RESPONSIBLE FOR THE
PROPER INITIAL TRAINING OF YOUR
OPERATORS AND MAINTENANCE
PERSONNEL.
ACCEPTANCE OF SHIPMENT
Your MODEL 370 SS® Truck mount cleaning
unit was thoroughly tested, checked and inspected
in its entirety prior to leaving our manufacturing
facility. When receiving your unit, please make
the following acceptance check:
1. The unit should not show any signs of damage.
If there is damage, notify the common carrier
immediately.
2. Carefully check your equipment and packing
list. The standard SAPPHIRE SCIENTIFIC
MODEL 370 SS® unit should arrive with the
following items as well as any optional
accessories:
EQUIPMENT LISTING
SAPPHIRE SCIENTIFIC MODEL 370
SS® console.
Operation and Service manual.
Installation mounting plates and bolt down
kit.
Hose clamps for vacuum and fuel hoses.
Waste tank with shutoff switch.
Waste tank filter and stainless steel
strainer basket.
50 ft. of ¼ in. high pressure solution hose
with shutoff valve and quick connects.
50 ft. of ¼ in. high pressure solution hose
with quick connects
50 ft. of 2 in vacuum hose.
50 ft. of 2.5 in. vacuum hose.
1 hose coupler – 2 inch.
1 reducing hose coupler – 2-1/2 to 2 in.
50 ft. water supply hose with quick
connect.
OPTIONAL EQUIPMENT
Additional 50 ft.2 in. vacuum hose
Part # 18-003
Additional 50 ft. 2-1/2 in. vacuum hose
Part # 18-333
Additional vacuum hose connectors
Part # 21-003
Additional high-pressure solution hoses
Part # 18-000
With shutoff valve Part # 18-001
Demand pump system
Part # 68-002
Automatic Waste Pump-Out Kit
Part #68-158
FUEL HOOK-UP KITS BY VEHICLE
Chevy 1997 to 2002 FI…….. 69-003FI
Chevy 2003 FI……………... 69-018FI
Chevy 2004+ Hook-Up Kit… 69-033
Chevy Box Truck 2004+…… 69-081
Dodge 1997 to 2002 FI…….. 69-004FI
Ford FI……………………... 69-005FI
Ford 2004 – 2010…………... 69-061
Ford 2011+…………………. 69-331
Ford Box Truck 2004+…….. 68-077
Ford Transit Connect ……... 69-261S
Nissan NV………………….. 69-376

9 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
SECTION 2:
INSTALLATION
3 INSTALLATION
Lifting the unit into the vehicle 10
Positioning the unit into the vehicle 10
Fastening down the unit and waste tank 10
Dimensional diagrams 11
Installation of fuel lines 12
Trailer fuel tank and fuel line installation 12
Battery Connection 12
Fire extinguisher 12
Console to waste tank connection 13

SECTION 2
10 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
3. INSTALLATION
!!!
This unit must be bolted to the floor of the
vehicle by an authorized SAPPHIRE
SCIENTIFIC DISTRIBUTOR.
LIFTING THE UNIT INTO THE
VEHICLE
Because the SAPPHIRE SCIENTIFIC
MODEL 370 SS® weighs approximately 652
lbs., a forklift is necessary to place the unit into
the vehicle. Place the forks under the unit.
Using two “C” clamps, secure the console to the
forks. Move the unit into desired position.
POSITIONING THE UNIT INTO
THE VEHICLE
Vehicles vary in size and openings. Owners
have different preferences on where in the
vehicle they want their units positioned.
SAPPHIRE SCIENTIFIC strongly
recommends a side door installation for the
MODEL 370 SS®. We DO NOT recommend a
rear door installation.
1. Ensure that enough space is provided to
assure adequate engine ventilation as well as
room for service and maintenance.
2. Operating weight of the complete installation
(which includes water weight) with waste tank
and all accessories MUST NOT exceed the
vehicle’s axle weight limit. Please refer to
SPECIFICATIONS in Section 1 for standard
unit and waste tank operating weight.
FASTENING DOWN THE UNIT
AND WASTE TANK
!!!
Prior to drilling any holes in the vehicle floor,
ensure that while drilling, you will not
damage the fuel tank, fuel lines, or any other
vital components which could affect the
safety or operation of the vehicle.
A. The console and waste tank mounting holes
will serve as a template. Drill six (6) 13⁄32 in.
diameter holes for the console and four (4) 13⁄32
in. diameter holes for the waste tank.
B. Using the provided mounting hardware kit:
1. Insert six (6) ⅜-16 × 4 in. grade 5 hex
head cap screws with flat washers
through the MODEL 370 SS® console
mounting holes, and four (4) ⅜-16 × 4
in. grade 5 hex head cap screws with flat
washers through the waste tank
mounting holes.
2. Install the provided mounting plates
underneath the vehicle floor.
3. Screw the provided ⅜-16 hex head lock
nuts on to the mounting bolts and tighten
until the console and waste tank are
firmly attached to the vehicle floor.

SECTION 2
11 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
DIMENSIONAL DIAGRAM REAR MOUNT TANK

SECTION 2
12 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
INSTALLATION OF FUEL LINES
!!!
READ THESE INSTRUCTIONS IN THEIR
ENTIRETY PRIOR TO PROCEEDING.
!
The Vehicle fuel lines should NOT be spliced
under ANY circumstances. Severe injury or
fatality could result.
DO NOT damage the vehicle in any way during
the installation. When routing fuel lines DO
NOT configure the hoses in any location where
the hoses or vehicle could be damaged. Avoid
contact with moving parts, areas of high
temperature, brake lines, fuel lines, catalytic
converters, exhaust pipes, mufflers or sharp
objects.
TRAILER FUEL TANK AND
FUEL LINE INSTALLATION
The following are recommendations for trailer
installations:
A. Strict compliance with all federal and state
laws must be maintained.
B. Use only fuel tanks that are manufactured
specifically for gasoline, have proper vented
filling caps, and outlet connections that are the
same size as the inlet and return connections on
the unit.
C. DO NOT install fuel tanks inside any type of
enclosed trailer or vehicle.
!
NEVER carry gasoline or flammable materials
in an enclosed trailer or vehicle.
NEVER store any type of flammable material
in an enclosed trailer or vehicle.
D. Always mount fuel tanks where they will be
protected from any vehicle collision.
E. When installing fuel lines from the fuel tank
to the unit, use the proper size fuel line.
BATTERY CONNECTION
!
Explosive gases, Dangerous gases!
Batteries contain sulfuric acid. To prevent acid
burns, avoid contact with skin, eyes and
clothing. Batteries also produce explosive
hydrogen gases while charging. To prevent fire
or explosion, charge batteries only in a well
ventilated area. Keep sparks, open flames, as
well as any other sources of ignition away from
batteries at all times. Remove all jewelry prior
to servicing batteries. Keep batteries out of the
reach of children.
Before disconnecting the negative (−) ground
cable, ensure that all switches are in the OFF
position. If ON, a spark could occur at the
ground connection terminal, which could cause
an explosion if hydrogen gas or gasoline vapors
are present. ALWAYS disconnect the negative
(−) terminal first.
A. Attach the red positive (+) battery cable from
the starter solenoid on the console to the
positive (+) terminal on the battery and tighten
down the nut.
B. Attach the black negative (−) battery cable
from the ground on the console to the negative
(−) terminal on the battery and tighten down the
nut.
FIRE EXTINGUISHER
SAPPHIRE SCIENTIFIC, and many
government agencies, recommend that a fire
extinguisher rated for A, B, and C type fires be
installed into any commercial vehicle.

SECTION 2
13 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
CONSOLE TO WASTE TANK CONNECTION
WASTE TANK
VACUUM INLET
VACUUM INLET TO WASTE TANK
PART NUMBER 17-205
HOSE, INT VAC 2-1/2 X 60”
VACUUM BRAKE
WASTE TANK TO VACUUM BRAKE
PART NUMBER 17-554
HOSE, INT VACUUM 2-7/8 X 25”

SECTION 2
14 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
SECTION 3:
OPERATION
4. SYSTEMS
Water/Heating system 15
Vacuum system 16
Chemical pumping system 17
5. OPERATION
Preparation 18
Starting the unit 20
Priming the chemical pump 20
Automatic waste pump 20
Operation 21
Cleaning 21
Upholstery cleaning 21
Stair tool cleaning 21
Flood restoration/extraction 21
Shut down and daily maintenance 22
Freeze protection 23

SECTION 3
15 SAPPHIRE SCIENTIFIC MODEL 370 SS® PART# 49-038 REV F
4. SYSTEMS
NOTE: Read and understand this section of
the manual entirely before proceeding.
This portion of the manual divides the unit up
into systems and describes how each system
works. Prior to proceeding into the operations
and maintenance sections of this manual it is
recommended that you acquire a basic
understanding of how the unit functions.
WATER RESERVOIR
The water reservoir is a pressurized vessel.
Cold water enters the console through the water
inlet connection located on the lower left corner
of the lower front panel. The water then flows
through the Inlet Pressure Regulator (where
incoming water pressure is reduced to 15 psi)
and into the water box.
WATER/HEATING SYSTEM
The water is pre-heated in the water box using
radiant heat generated by the vacuum blower,
engine and coil housing.
The water then flows to the water pump where
pressure is increased. From there it flows to the
heat exchanger where it travels through finned
tubing and is further heated by the vacuum
blower and engine exhaust.
The hot water then flows through the check
valve manifold that contains a strainer and a
check valve. At this point, the chemical
injection takes place.
The hot solution mixture of water and chemicals
then flows through the solution outlet manifold
to the cleaning tool. Solution pressure is
controlled by the Outlet Pressure Regulator.
Water Inlet
Water Pump
Water Inlet
Pressure Regulator
Water Box
Diverter Cylinder
Closed – Heating
Open – No Heat
Solution Outlet
Solution
Manifold
Bypass Orifice
Manifold
Outlet Pressure
Regulator