Sapphire Audio 370 SS User manual

SAPPHIRE SCIENTIFIC MODEL 370 SS I
Congratulations on your purchase of the
MODEL 370 SS®Truckmount cleaning
unit. This instruction/parts manual is a
guide for operating and servicing your
SAPPHIRE SCIENTIFIC Truckmount
unit.
Proper operation and service are necessary to
ensure the outstanding performance of this unit.
When properly maintained, your Truckmount 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®Truckmount 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
Printed in USA
MODEL 370 SS® MANUAL
PART# 49-038
October, 2009

II SAPPHIRE SCIENTIFIC MODEL 370 SS
SAPPHIRE SCIENTIFIC LIMITED WARRANTY
Sapphire Scientific Model 270 SS / MODEL 370 SS
What Does This Warranty Cover?
This warranty covers the Sapphire Scientific Models 270 SS & 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 maint
items.) Factory installed original belts are covered for 500 hours. Water
box, recovery ta
frame are covered for five years. All other components including seals, o-
rings and el
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, impr
operly 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 befor
e 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.

SAPPHIRE SCIENTIFIC MODEL 370 SS III
Table of Contents

IV SAPPHIRE SCIENTIFIC MODEL 370 SS
SECTION ONE: GENERAL INFORMATION 1
1. SAFETY 2
Safety, Specifications, Installation, Fuel, Engine Oil, Chemical, Water Requirements
2. RECEIVING YOUR TRUCKMOUNT UNIT 7
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
MAINTENANCE CHART 27
6. MAINTENANCE 28
7. GENERAL SERVICE ADJUSTMENTS 32
8. TROUBLESHOOTING 35
SECTION FIVE: PARTS and ACCESSORIES 40
9. ILLUSTRATED PARTS LISTINGS 41
10. ACCESSORIES 62

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

SECTION 1
2 SAPPHIRE SCIENTIFIC MODEL 370 SS
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
SAPPHIRE SCIENTIFIC MODEL 370 SS 3
!
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

SECTION 1
4 SAPPHIRE SCIENTIFIC MODEL 370 SS
gases are extremely flammable. This will
prevent possible explosions.
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, areas of high
temperature, 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 console with waste tank and
accessories weighs approximately 1000
pounds. 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
SAPPHIRE SCIENTIFIC MODEL 370 SS 5
SPECIFICATIONS
Engine Speed 2800 rpm (High Speed No Load)
1400 rpm (Idle No Load)
Water Pump RPM 1327 rpm
Vacuum Pump RPM 3200 rpm
Water Flow Rate 3.4 GPM (maximum)
Water Pump Pressure 1500 PSI (maximum)
Vacuum Relief Valve 14 in. Hg
Waste Tank Capacity 65 gal.
Console Weight 572 lbs.
Console Weight (with waste tank
& accessories) 1000 lbs.
TORQUE VALUES
Engine Hub Rear 180 inch/lbs. 15 ft/lbs.
Engine Hub Front 90 inch/lbs. 7.5 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.
Sapphire Scientific using the Stryker Cleaning
and Extraction Wand:
* Rotomolded ergonomic handle provides
balanced handling and substantially reduces
operator fatigue.
* Stainless steel extraction tube for rugged
service and long life
* Rotomolded head resists dents and scratches
and doesn’t readily gouge molding or furniture
* Purge valve for easy cleaning
* Classic S-shape makes reaching under
objects or furniture easy
* Rotomolded 14" head with full-width high
pressure injector and two-way extraction glide
provides maximum coverage and extraction
* Forged brass valve, centrally positioned for
right- or left-handed operation
* Glide assembly is easy to replace when worn

SECTION 1
6 SAPPHIRE SCIENTIFIC MODEL 370 SS
INSTALLATION
REQUIREMENTS
Prior to beginning the installation, read the
ENTIRE “Installation” section of this manual.
Since the MODEL 370 SS®Truckmount unt
weighs (with waste tank and accessories)1000
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 over heating.
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. NEVER use any
gasoline additives. Use only fresh, clean
unleaded gasoline intended for normal
automotive use. DO NOT use high-octane
gasoline with this unit.
ENGINE OIL REQUIREMENTS
Use high-quality oil of at least API (American
Petroleum Institute) service class SG, SH, SJ or
higher. Select the viscosity based on the air
temperature at the time of operation as shown
in the following table.
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.
CHEMICAL REQUIREMENTS
The SAPPHIRE SCIENTIFIC MODEL 370
SS®Truckmount unit’s unique last step
chemical injection system can be used with a
wide variety of water diluted chemical
compounds, either acidic or alkaline,

SECTION 1
SAPPHIRE SCIENTIFIC MODEL 370 SS 7
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.
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®Truckmount 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
A. SAPPHIRE SCIENTIFIC MODEL 370
SS®console.
B. Operation and Service manual.
C. Installation mounting plates and bolt down
kit.
D. Hose clamps for vacuum and fuel hoses.
F. Waste tank with shutoff switch.
H. Waste tank filter and stainless steel strainer
basket.
I. 75 ft. of ¼ in. high pressure solution hose
with shutoff valve and quick connects.
J. 75 ft. of 2.5 in. vacuum hose
K. 1 vacuum hose connector.
L. 1 hose-reducing cuff to 2 in.
M. 50 ft. water supply hose with quick connect.
OPTIONAL EQUIPMENT
A. Additional lengths of vacuum hose
Part # 18-003
B. Additional vacuum hose connectors
Part # 21-003
C. Additional high-pressure solution hoses
Part # 18-000
(With shutoff valve Part # 18-001)
D. Automatic waste pump kit
Part # 68-003
E. Demand pump system
Part # 68-002
F. KIT, FUEL HOOKUP CHEVY 97 TO
2002. FI Part # 69-003FI
G. KIT, FUEL HOOKUP CHEVY/DODGE FI

SECTION 1
8 SAPPHIRE SCIENTIFIC MODEL 370 SS
Part # 69-004FI
H. KIT, FUEL HOOKUP FORD FI
Part # 69-005 FI
I. KIT, FUEL HOOKUP 2003 CHEVY FI
Part #69-018FI
J. KIT, 2004 TF ADAPTER CHEVY
Part # 69-032
K. KIT, 2004 TF FUEL INJ. CHEVY
Part # 69-033
L. ADAPTOR, 2004 FORD FUEL
Part # 69-041
M. ADAPTOR, 2004 FUEL INJ. FORD
Part #69-041FI

SAPPHIRE SCIENTIFIC MODEL 370 SS 9
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
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 590 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. The complete unit with waste tank and
accessories MUST NOT exceed the vehicle’s axle
weight limit.
3. NEVER position the console closer than 12
inches from the bottom rear of the driver and
passenger seats.
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. hex head cap
screws with flat washers through the
MODEL 370 SS®console mounting holes,
and four (4) ⅜-16 × 4 in. 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
SAPPHIRE SCIENTIFIC MODEL 370 SS 11
DIMENSIONAL DIAGRAM REAR MOUNT TANK

SECTION 2
12 SAPPHIRE SCIENTIFIC MODEL 370 SS
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
SAPPHIRE SCIENTIFIC MODEL 370 SS 13
CONSOLE TO WASTE TANK CONNECTION

14 SAPPHIRE SCIENTIFIC MODEL 370 SS
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 21
Operation 21
Cleaning 21
Upholstery cleaning 21
Stair tool cleaning 22
Flood restoration/extraction 22
Shut down and daily maintenance 22
Freeze protection 23

SECTION 3
SAPPHIRE SCIENTIFIC MODEL 370 SS 15
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/HEATING SYSTEM
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 to the
water box through a float valve, which shuts off
the water when the water box is full.
The water is pre-heated in the water box using
radiant heat generated by the vacuum blower and
the engine.
The water then flows to the water pump where it is
pressurized. 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.
3-1

SECTION 3
16 SAPPHIRE SCIENTIFIC MODEL 370 SS
VACUUM SYSTEM
The engine turning an air pump (vacuum pump)
generates vacuum. The air is channeled in one side
of the vacuum pump, compressed and discharged
on the opposite side, creating airflow. This airflow
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 also heats incoming air as it is
compressed. The hot discharged air is forced down
stream into a silencer for noise abatement. Exiting
the silencer, this hot air is directed through the heat
exchanger
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.
A level shut off sensor is located near the top of
the waste tank and will shut down the unit before
the tank is at full capacity. This protects the
vacuum pump from water damage. Note: Waste
tank level shut off will not shut the unit off due to
high levels of foam. The use of a quality defoamer
is recommended.