HydraMaster Diamond Products GTXR+ User manual

HydraMaster
11015 47th Avenue West
Mukilteo, Washington 98275
MAN-47310 Rev. D, FEB 2021
(000-182-740D)
No part of this manual may be reproduced or used in any form or by any means (i.e. graphic, electronic, photocopying or electronic
retrieval systems) without the express written permission of HydraMaster. Specications and information in this document are
subject to change without prior notice. All rights reserved. © 2021 HydraMaster
Diamond Products GTXR+
Owner’s Guide and
Maintenance Logs
LTR REVISION DESCRIPTION CODE DATE BY CHKD APPVD
D
C
B
A
B
C
D
1
2
3
4
8
7
6
5
4
3
2
1
DRAWN
CHECKED
APPVD
SCALE: 1:16
SHEET 1 OF 1
8
7
6
5
A
PROPRIETARY INFORMATION
11015 47th Avenue West,
Mukilteo, Washington 98275
B
SIZE
TOLERANCES
.X= .1
.XX= .03
.XXX= .010
ANGULAR = 2°
BREAK ALL SHARP EDGES 0.005-.015
UNLESS OTHERWISE NOTED
DIMENSIONS ARE IN INCHES
PART NUMBER
WEIGHT:
APPLICATION
NEXT ASSY USED ON
L.O.L. 11/18/2020
01/20/2021
01/20/2021
REV
ASSEMBLY, CONSOLE - GTXR PLUS
MACHINE
FINISH
125
M.B.B.
M.B.B.
GTXR PLUS
750-012-754-10
- - - - - -
- - -
- - -
- - -
- - -
- - -
- - -
610-050-754
CODE:
538.02

1: Diamond Products GTXR+ - Owner’s Guide
Introduction
This Owner’s Guide provides you with important Contact Information, Warnings and
Precautions, a System Operation Overview and Maintenance Logs. In the back inside
cover of this guide you will also nd a CD that contains the digital Owner’s Manual.
Read the entire digital Owner’s Manual and this Owner’s Guide before using this
product. Failure to do so can result in serious injury or death.
HOW TO USE THESE RESOURCES
The Owner’s Guide is to be used for quick reference only and is not intended to be a
comprehensive source of information. Refer to the Owner’s Manual when more detailed
information is needed.
The Machine Maintenance Log is located within the Owner’s Guide. It is wise to keep
the Owner’s Guide in a visible location near the truckmount so that the log stays up to
date. Please note that records of maintenance must be kept and copies may be
required to be furnished to HydraMaster before any warranty is honored.
The digital Owner’s Manual contains information on everything from cleaning and
chemicals to truckmount operation and maintenance. It also contains detailed machine
assemblies and parts lists as well as a troubleshooting guide. You should become familiar
with the material in the Owner’s Manual as it contains information that is essential for safe
operation and increased truckmount reliability.
This Owner’s Guide contains the following sections:
Contact Information
Warnings, Cautions and Notices
Responsibilities
System Concept
Machine Specications
High Altitude Operation
Local Water Precautions
Operating Instructions
Maintenance Logs

Diamond Products GTXR+ - Owner’s Guide: 2
CONTACT INFORMATION
If you have any questions regarding the operation, maintenance or repair of this machine,
please contact your local distributor.
To nd a local distributor, please visit our website at
https://hydramaster.com/dealer-locator/
If your question cannot be resolved by your distributor or by the information within this
manual, you may contact HydraMaster direct using the following phone numbers.
HOURS TELEPHONE NUMBERS E-MAIL ADDRESSES
Monday-Friday
7:00 a.m. to 5:00 p.m.
Pacic Time
Technical Support
[phone]
FAX : [phone]
Technical Support
[e-mail]
Customer Service/Parts
[phone]
FAX : [phone]
Customer Service/Parts
[e-mail]
When calling your distributor, be sure to reference the serial number and date of purchase.
FOR YOUR REFERENCE:
Serial No.______________________________________________
Date of Purchase:___________________
Purchased From (Distributor):_________________________________________

3: Diamond Products GTXR+ - Owner’s Guide
WARNINGS, CAUTIONS AND NOTICES
HydraMaster uses this WARNING symbol throughout the guide to warn of
possible injury or death.
This CAUTION symbol is used to warn of possible equipment damage.
This NOTICE symbol indicates that federal or state regulatory laws may apply,
and also emphasizes supplemental information.

Diamond Products GTXR+ - Owner’s Guide: 4
During the operation of the truckmount many components are in motion. Never
touch any part of the truckmount that is in motion. Serious injury may result.
During the operation of the truckmount many surfaces will become extremely hot.
Never touch hot surfaces. Serious injury may result.
The operation of this truckmount can produce noise levels exceeding 85 decibels
to a distance of 10 feet. The Occupational Safety and Health Administration
(OSHA) recommends the use of hearing protective equipment if a person is
exposed to an average of 85 decibels over an eight hour period. Check with local
and state agencies concerning hearing conservation rules.
During the operation of the truckmount carbon monoxide and other toxic fumes
are produced. Position the vehicle so that any fumes produced will be directed
away from inhabited areas and any points of building entry (doors, windows, air
conditioning units, fans, etc.). Do not occupy the vehicle while the truckmount is
in operation. Serious injury may result.
During the operation of the truckmount chemicals known to the State of California
to cause cancer, birth defects and other reproductive harm are produced by the
engine exhaust.
Never operate the truckmount with a portable gas container inside the vehicle.
Doing so will increase the risk of re and explosion. Serious injury or death my
result.
Transporting a vented fuel container that presently contains, or has ever contained
in the past, a ammable liquid is strictly forbidden by HydraMaster and by federal
and state regulations. Doing so will increase the risk of re and explosion. Serious
injury or death may result.

5: Diamond Products GTXR+ - Owner’s Guide
Never smoke in or around the truckmount. Doing so will increase the risk of re
and explosion. Serious injury or death may result.
During the operation of the truckmount the exhaust system will become extremely
hot. Keep all ammable materials away from the truckmount exhaust system.
Failure to do so will increase the risk of re and explosion. Serious property
damage may result.
Never operate the truckmount when the vehicle is tilted more than 10 degrees
in any direction. Doing so will result in improper lubrication of the internal
components, and will increase the risk serious component or engine damage.
Never perform cleaning operations when the truckmount engine is running at the
IDLE throttle position. Failure to do so will increase the risk of serious component
or engine damage.
Never operate the truckmount with the vehicle doors closed. Doing so results in
extremely high temperatures inside the vehicle and will lead to serious component
or engine damage.
Never use concentrated acids or solvents (including d-limonene) in the truckmount
water system or chemical system. Use of these products will cause serious
component damage.
Never operate the truckmount with a water hardness reading measuring 3.0
grains per gallon or higher. Using reading than 3.0 grains per gallon will cause
scale to build up inside the truckmount water system. Scale build up causes
serious component damage. Test all water prior to use and use water softening
equipment if necessary.

Diamond Products GTXR+ - Owner’s Guide: 6
Never allow water to freeze inside the truckmount. Serious component damage
will occur. Perform all freeze guarding procedures outlined in the digital Owner’s
Manual.
Many vehicles have critical components mounted directly below the oor that can
easily be damaged. Before drilling holes in the oor of the vehicle, inspect the
underside of the vehicle for critical components. Failure to do so may result in
damage to the vehicle.
During the operation of this equipment, surfaces will become hot. Do not allow
components such as hoses to touch hot surfaces. Failure to heed this warning
can result in equipment damage which is not covered by warranty.

7: Diamond Products GTXR+ - Owner’s Guide
RESPONSIBILITIES
The Purchaser’s Responsibilities
Prior to purchasing a van, ensure that the payload is suitable for all of the equipment
that will be installed and transported. This includes and is not limited to: the truckmount,
recovery tanks, fresh water tanks and on-board water, hose reels, hoses, cleaning tools,
chemicals, drying equipment, etc. Payload capacity information is available through the
auto dealer, the manufacturer’s web site, and is also located on the door pillar of the
driver’s side door.
Purchase a heavy duty Group 24 (550 CCA or better) battery for this truckmount. This is
normally available from the installation dealer.
Prior to dropping your van off at the distributor for the truckmount to be installed, have a
spray-on bed liner applied to the oor such as Rhino Lining® or Line-X®.
Prior to operating the truckmount read this manual in its entirety and familiarize yourself
with the information contained here. Special attention should be paid to all cautions and
warnings.
The distributor is responsible for the correct installation of the truckmount. The distributor
is also responsible to train you in the correct and proper operation and maintenance of
the truckmount.
Any modication of the truckmount may void the warranty.
The Distributor’s Responsibility
Acceptance of Shipment
Before accepting the truckmount, check the following:
• The truckmount should be free from any damage during shipping. Do not sign the
delivery receipt until you have closely inspected the truckmount and noted any damage
on the delivery receipt. Hidden damage may be present even if the box looks okay. It
is recommended that the box be opened before signing for the shipment.
• Check the packing list and verify that all items are accounted for.

Diamond Products GTXR+ - Owner’s Guide: 8
Installation Responsibilities
• Ensure proper payload capacity. It is the distributor’s responsibility to verify that the
equipment package does not exceed the vehicle capacity.
• Ensure installation of a safe fuel tap system and through-oor ttings as provided by
HydraMaster.
• Proper placement of the truckmount, recovery tank, fresh water tank, and accessories
in the vehicle and securing them with bolts and back up plates. The distributor should
verify that the owner is in agreement with the layout.
• Ensure proper connection of the fuel lines.
• Ensure proper connection and installation of the battery. Verify that the battery is in
accordance with HydraMaster’s recommendation.
• Check the pump, vacuum blower and engine oil levels prior to starting the truckmount.
• Start and run the truckmount and check that all systems function properly.
• Test all hoses, wands, etc. for correct operation.
• Ensure timely return of the document package.

9: Diamond Products GTXR+ - Owner’s Guide
Training
The distributor should provide a thorough review of the operation manual with the
purchaser along with instruction and familiarization in:
• How all the truckmount’s systems function.
• All safety precautions and their importance.
• How to correctly start and shut down the truckmount.
• How to correctly clean with the truckmount.
• Where and how often to check and change component oil levels.
• Freezing damage and how to avoid it. This includes explaining proper freeze guarding
procedures.
• How to do basic troubleshooting of the truckmount.
• Hard water damage and how to avoid it. This includes how to determine if hard water
exists in your area and the installation and use of water softening systems.
• The truckmount’s warranty and warranty procedures.

Diamond Products GTXR+ - Owner’s Guide: 10
SYSTEM CONCEPT
The system utilizes an internal combustion engine to provide the power necessary to turn
both a vacuum pump and a high pressure water pump.
The heat of the engine and blower exhausts is transferred to the high pressure water in
the nned tube heat exchanger of the system.
Finally, the chemical is injected into the pressurized water stream and the heated solution
is delivered to the cleaning tool. The solution is recovered by the vacuum generated by
the vacuum pump This solution is collected in the recovery tank for proper disposal.

11: Diamond Products GTXR+ - Owner’s Guide
MACHINE SPECIFICATIONS
Frame Dimensions 24.0" W x 31” H x 36" D
Weight 538 lbs.
Engine- Briggs and
Stratton Vanguard 23 HP
Pressurized Oil System
Air Cooled
Engine Oil Synthetic 5W-30
Capacity Approx. 1 1/2 quarts , or 48 oz.
(when changing oil and lter)
Engine rpm 3,150 rpm
Fuel Consumption 1.1 gph
Ignition Electric Key Start
Vacuum Blower- Gardner
Denver 4005
Max. Vac. 14” Hg
Oil Type AEON PD Synthetic
Gear End Capacity Approx. 5.8 oz.
Drive End Capacity Approx. 4.7 oz.
Blower rpm 3,150 rpm
Water Pump - 3.5 gpm
Plunger Pump,
Electric Clutch Control
Oil Type 30W non-detergent
Capacity Approx. 8.0 oz.
Pump Rate 3.5 gallons per minute
Pump rpm 1,750 rpm
Drive System Guardian Coupler
Engine Exhaust Diverter Automated Diverter Control
(ADC) Temperature Control
Operating Pressure 0 - 1,000 psi
Chemical System Stainless Steel Last Step
Chemical Injection,
Meter Controlled
Heating System Finned Tube Heat Exchanger

Diamond Products GTXR+ - Owner’s Guide: 12
Spare Parts - Engine HM part number
Oil Filter 000-049-014
Fuel Filter 000-049-258
Foam Pre-Air Filter 000-049-053
Air Filter 000-049-012
Exhaust Gasket 000-057-082
Spark Plug 000-106-016
Standard Equipment Runtime Hour Meter
Chemical Flow Meter
(0-10 Gph)
Chemical Flow Control Valve
Vacuum Gauge (0-30" Hg)
Solution Pressure Gauge
(0 - 1,500 Psi)
Solution Pressure Adjustment
Pre-Wired Pump-In Switch
Pre-Wired Pump Out Switch
Fresh Water Inlet
Water System Drain Valve
Diagnostic/Status Lights
Engine Choke
Engine Throttle
Electrical Circuit Protection
(Fuse Protected)
Solution Temperature Control
Selector
Fresh Water Tank (FWT) 110 Gallon Rotomold
Universal Recovery Tank (URT) 100 Gallon URT
Wand, 1.5” x 13” EVO
Optional Equipment Recovery Tank pump out Automatic Wastetank
Disposal System
(AWDS)
Hoses
Wand, 1.5”
Thru Floor Kit

13: Diamond Products GTXR+ - Owner’s Guide
HIGH ALTITUDE OPERATION
Elevation plays a key role in how the truckmount will operate. Operation at high altitude
(above 5,000 ft.) may require a high-altitude carburetor jet. Use of this jet at high altitude
will improve power, reduce fuel consumption and help reduce excessive carbon build-up
in the exhaust and heat exchanger systems.
Contact the local Briggs and Stratton dealer or HydraMaster to obtain the
proper jet size. Your local Briggs and Stratton dealer can be located at
http://www.briggsandstratton.com/us/en/support/dealerlocator .
LOCAL WATER PRECAUTIONS
The quality of water varies greatly. Many areas have an excess of minerals in the water
which results in what is commonly called “hard water.” These minerals tend to adhere to
the insides of heater coils and other parts of the machines causing damage and a loss of
cleaning effectiveness. This inuences the reliability and efciency of equipment in direct
proportion to the level of hardness.
Hard Water Advisory
HydraMaster recognizes that any hard water deposits which might occur within the water
system of our truckmounts is a serious problem. The precision technology of truckmount
heat exchanger systems is intolerant of any foreign material. Hard water deposits will
ultimately decrease the performance of the system and are expected to seriously lower
the reliability of the machine.
To validate a machine’s warranty, HydraMaster requires that all machines operating in
designated “Hard Water Areas” (3.0 grains or more per gallon) be tted with a water
softening system, or a properly installed magnetic-type descaler must be used and
maintained. Periodic descaling or acid-rinsing alone is not adequate in these areas.
HydraMaster does not recommend any particular type or brand; however, the relative
effectiveness of some types of magnetic descalers or softeners may require additional
periodic use of descaling agents.
HydraMaster also recommends, in the strongest possible terms, that machines in all
areas be tted with a water softening system for improved operation and reliability.
Failure to take appropriate measures to prevent scale build up can result in
system failure and loss of warranty on affected parts.

Diamond Products GTXR+ - Owner’s Guide: 14
Hard Water Area Map
The hard water map, shown in Figure 1, denes hard water areas in the continental United
States which compromise uid related components such as hoses, ttings, heaters,
pumps, valves and water-cooled engines. For other countries, hard water area maps can
be obtained from geological societies.
Figure 1. Hard Water Map of Mainland United States
The map shown in Figure 1 is provided for general reference only. Water hardness
in your geographical location should be conrmed by testing.

15: Diamond Products GTXR+ - Owner’s Guide
Water Softener
Cleaning efciency and equipment life is increased, chemical use decreased, and the
appearance of cleaned carpets enhanced when water softeners are incorporated in hard
water areas. HydraMaster strongly urges the use of water softener units with the GTXR+
in areas exceeding 3.0 grains per gallon.
Failure to use a water softener in these areas will invalidate the machine’s warranty.
Referring to the hard water area map shown Figure 1, determine the quality of water in
your area and take immediate action if the water hardness exceeds 3.0 grains per gallon.
The relatively low cost of a water softener service is more than made up for by an increased
life of machine parts, reduced chemical costs and continued cleaning efciency. The
water softener will also increase the effectiveness of the cleaning chemicals, therefore
less chemical will be needed.
Contact a water softener distributor in your area for information on the rental of a simple
water treatment unit to carry in your truck. Be sure to charge the water softener in
accordance with the capability of the softener.
For example: If the softener will treat 900 gallons of water and the machine uses an
average of 30 gallons/hour, for an average of 5 hours a day, this equals 150 gallons per
day). In 6 days the machine would use 900 gallons of water. Therefore, the softener
would need to be charged every 6 working days for maximum softening.

Diamond Products GTXR+ - Owner’s Guide: 16
Waste Water Disposal Advisory
There are laws in most communities prohibiting the dumping of recovered “gray” water
from carpet cleaning in any place but a sanitary treatment system.
The cleaning rinse water, recovered into your unit’s vacuum tank, contains materials
such as detergents, and must be safely processed before entering streams, rivers and
reservoirs.
In most cases, an acceptable method of waste water disposal is to discharge into a
municipal sewage treatment system after rst ltering out solid material such as carpet
ber. Access to the sanitary system can be obtained through a toilet, laundry drain, RV
dump, etc. Permission should rst be obtained from any concerned party or agency.
One disposal method which usually complies with the law is to accumulate the waste
water and haul it to an appropriate dump site. Another solution to the disposal problem is
to equip your GTXR+ with an automatic pump out system. These systems are designed
to remove waste water from the extractor’s recovery system and actively pump the water
through hoses to a suitable disposal drain.
HydraMaster makes an automatic pump out system called the Automatic Wastetank
Disposal System, or AWDS, which can be ordered with new equipment or installed later.
When properly congured, the AWDS will continuously monitor the level of waste water
and pump it out simultaneously with the cleaning operation. The hidden benet of this
process is that the technician does not have to stop his/her cleaning to empty the recovery
tank.
INACCORDANCE WITH EPA, STATEAND LOCAL LAWS, DO NOT DISPOSE OF
WASTE WATER INTO GUTTERS, STORM DRAINS, STREAMS, RESERVOIRS,
ETC.
THE PENALTIES FOR NON-COMPLIANCE CAN BE SERIOUS.ALWAYS CHECK
LOCAL LAWS AND REGULATIONS TO BE SURE YOU ARE IN COMPLIANCE.

17: Diamond Products GTXR+ - Owner’s Guide
Operating Instructions
START-UP PROCEDURE
1. Perform all daily and periodic maintenance as specied in Section 4 of the Owner’s
Manual.
2. Connect a garden hose to supply water to the truckmount. If used, turn the “PUMP-IN”
switch to the “ON” position (see Figure 2).
The water box must be full prior to starting the truckmount.
3. Connect the cleaning tool to the length of hose required to perform the cleaning
job.
4. Turn the key to “ON”. Pull the choke and start the truckmount with the throttle cable
fully depressed (“IDLE” position - see Figure 2)
5. After the engine starts, push the choke in and allow the truckmount to run in “IDLE”
for 2 - 3 minutes to warm up.
6. Pull the throttle cable to full extension and twist the handle clockwise to lock.
Figure 2. Location of Throttle, Choke and Pump-In/Pump Clutch Switch
LTR REVISION DESCRIPTION CODE DATE BY CHKD APPVD
D
C
B
A
B
C
D
1
2
3
4
8
7
6
5
4
3
2
1
DRAWN
CHECKED
APPVD
SCALE: 1:16
SHEET 1 OF 1
8
7
6
5
A
PROPRIETARY INFORMATION
11015 47th Avenue West,
Mukilteo, Washington 98275
B
SIZE
TOLERANCES
.X= .1
.XX= .03
.XXX= .010
ANGULAR = 2°
BREAK ALL SHARP EDGES 0.005-.015
UNLESS OTHERWISE NOTED
DIMENSIONS ARE IN INCHES
PART NUMBER
WEIGHT:
APPLICATION
NEXT ASSY USED ON
L.O.L. 11/18/2020
01/20/2021
01/20/2021
REV
ASSEMBLY, CONSOLE - GTXR PLUS
MACHINE
FINISH
125
M.B.B.
M.B.B.
GTXR PLUS
750-012-754-10
- - - - - -
- - -
- - -
- - -
- - -
- - -
- - -
610-050-754
CODE:
538.02
Pump-In/Pump
Clutch Switch
Choke
Throttle
Ignition and
Key

Diamond Products GTXR+ - Owner’s Guide: 18
LTR REVISION DESCRIPTION CODE DATE BY CHKD APPVD
D
C
B
A
B
C
D
1
2
3
4
8
7
6
5
4
3
2
1
DRAWN
CHECKED
APPVD
SCALE: 1:16
SHEET 1 OF 1
8
7
6
5
A
PROPRIETARY INFORMATION
11015 47th Avenue West,
Mukilteo, Washington 98275
B
SIZE
TOLERANCES
.X= .1
.XX= .03
.XXX= .010
ANGULAR = 2°
BREAK ALL SHARP EDGES 0.005-.015
UNLESS OTHERWISE NOTED
DIMENSIONS ARE IN INCHES
PART NUMBER
WEIGHT:
APPLICATION
NEXT ASSY USED ON
L.O.L. 11/18/2020
01/20/2021
01/20/2021
REV
ASSEMBLY, CONSOLE - GTXR PLUS
MACHINE
FINISH
125
M.B.B.
M.B.B.
GTXR PLUS
750-012-754-10
- - - - - -
- - -
- - -
- - -
- - -
- - -
- - -
610-050-754
CODE:
538.02
Figure 3. Front View of the GTXR Console
Temperature Knob
Optional Auto
Pump-Out Switch
Chemical Selection Valve
Chemical Metering Control Knob
Vacuum Gauge
Pressure Gauge
Blower Lube
Port