HydraMaster Clutch Drive System 4.8 SV User manual

Clutch Drive System 4.8 SV
Owner’s Guide and
Maintenance Log
HydraMaster
11015 47th Avenue West
Mukilteo, Washington 98275
MAN-47864 Rev. A, DEC 2021
(P/N 000-182-138D)
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

1 - CDS 4.8 SV Owner’s Guide
Introduction
This Owner’s Guide provides you with important Contact Information, Warnings and
Precautions, Machine Specications, Operating Instructions and Maintenance Logs. In
the back inside cover of this guide you will also nd a USB that contains the digital
Owner’s Manual.
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 in the Owner’s Guide. It is wise to keep this
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
parts lists as well as troubleshooting guides. 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:
Machine Specications
Responsibilities
Battery Relearn for Ford Van
Local Water Precautions
Waste Water Disposal Advisory
Operating Instructions
Maintenance Logs

CDS 4.8 SV 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 - CDS 4.8 SV Owner’s Guide
WARNINGS, CAUTIONS AND NOTICES
HydraMaster uses this WARNING symbol throughout this document 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.

CDS 4.8 SV Owner’s Guide - 4
Warnings and Cautions specic to the CDS 4.8 SV include:
HOT SURFACES: During the operation of this equipment, many surfaces on the
machine will become very hot. When near the van for any reason care must be
taken not to touch any hot surface, such as the engine or the exhaust.
HEARING PROTECTION: The Occupational Safety and Health Administration
(OSHA) recommends the use of hearing protection when a technician is exposed
to an average of 85 decibels (this is an average of exposure over an 8 hour
period). This equipment can produce 85 decibels to a distance of 10 feet. Please
check with your local state agencies to see if OSHA standards apply to your
application.
NO SMOKING: It is unsafe to smoke in or around the vehicle. Do not allow any
open ames in or around the vehicle.
CARBON MONOXIDE: This unit generates toxic fumes. Position the vehicle so
that the fumes will be directed away from the job site. Do not park where exhaust
fumes can enter a building through open doors, windows, air conditioning units
or kitchen fans.
TOXIC FUMES: Do not occupy the vehicle when the cleaning equipment is
operating. Toxic fumes may accumulate inside a stationary vehicle.
ENGINE EXHAUST: The engine exhaust from this product contains chemicals
known to the State of California to cause cancer, birth defects or other reproductive
harm.
MOVING PARTS: Never touch any part of the machine that is in motion. Severe
bodily injury may result.

5 - CDS 4.8 SV Owner’s Guide
The use of some chemicals through your mobile carpet cleaning plant can
seriously damage the internal plumbing, high-pressure pump, chemical pump
and heat exchangers. These harmful chemicals include concentrated acid (see
the pH chart in Figure 2-1), solvents (including d-Limonene), and some paint, oil
and grease removers with a high concentration of solvents.
THROUGH-FLOOR DRILLING: Be cautious when drilling holes through the van
oor. Many vans have critical components mounted directly below the van oor
that could be damaged by a misplaced drill bit.
LEVEL OPERATION: During operation, the vehicle must be parked on level ground
not to exceed + or - 10 degrees. Failure to ensure proper leveling may prevent
proper internal lubrication of engine, vacuum and/or high pressure components.
ACID RINSE AGENTS: Some acid rinse products can cause damage to internal
machine components. Failure to take appropriate measures to prevent acidic
corrosion can result in system failure and loss of warranty on a󰀨ected parts.
HARD WATER PROTECTION: Failure to take appropriate measures to prevent
scale build up can result in system failure and loss of warranty on a󰀨ected parts.
Test the water in your immediate and surrounding areas with hard water test
strips. Assume all water obtained from wells is hard. If you are operating in a hard
water area at 3.0 grains or more per gallon, use a water softening system.
FREEZE PROTECTION: Failure to take appropriate measures to prevent
equipment damage due to freezing can result in system failure and loss of
warranty on a󰀨ected parts. Placing an electric heater in the vehicle or parking the
vehicle indoors will help ensure against freezing, but should not be the primary
method of freeze protection.

CDS 4.8 SV Owner’s Guide - 6
MACHINE SPECIFICATIONS
Frame 23” W x 41.5” H x 61.0” L
Weight 650 lbs (tank and console only)
Construction Tank Marine aluminum with baked-on epoxy nish
Chassis steel with baked-on nish
Cowling, berglass
Power Transfer Electric clutch-driven shaft, key activated
Vacuum Blower Gardner-Denver 408 Tri-Lobe
Water Pump Plunger pump, 4.0 gpm (at high speed), 1,200 operating psi, electric
clutch control
Chemical
System
Last-step chemical injection, meter controlled
Heating System Engine heat recovery, plate heat exchanger system, standard Salsa
heat exchanger package
Instruments
Main Panel Electronic tachometer, 0-4,000 rpm
Water temperature gauge, 0-250 degrees F
Vacuum gauge, 0-30” hg
Hour meter, machine run-time
Keyed ignition, start/stop
Electronic circuit protection breaker, resettable
Machine status indicator lamps
Chemical owmeter, 0-10 gph
Solution pressure gauge, liquid lled, 0-1,500 psi
Side Panel Water pressure adjustment
Blower lubrication port
Solution temperature control selector
High pressure solution outlets, quick-disconnect
Fresh water inlet tting, quick-disconnect
Water box drain valve
Chemical controls

7 - CDS 4.8 SV Owner’s Guide
Recovery Tank 100 gallon aluminum
Cleaning Tool/
Wand
EVO Wand
Replacement grip
Rebuildable solution valve
High Pressure
Hose
1/4” high temperature, lined, vinyl covered
Hose rated to 2,200 psi, 250 degrees F
Standard
Equipment
Power transfer package
Component power pack
Equipment cowling
Vacuum recovery tank
Control console
Dual tool/wand hook-up
HydraMaster heat exchanger system
Freeze guard system
Wheel chock set
Carpet tool/wand
150 ft x 1/4” solution hose
150 ft, 2" vacuum hose
10 ft. 1 ½” whip hose
50 ft, fresh water hose (garden hose)
10 ft, 1 ½” drain line
5 gallon chemical jug
Chemical jug holder
Van nish package
Van decal package
Monogrammed jacket
Owner’s Manual (on USB)
Owner’s Guide (paper copy)

CDS 4.8 SV Owner’s Guide - 8
RESPONSIBILITIES
Prior to the arrival of the unit, the van that it will be installed in should be delivered to the
installer.
Purchaser’s Responsibility
If you are the purchaser, it is the your responsibility to read the Owner’s Manual and to
familiarize yourself with the information contained herein, paying special attention to all
Warnings and Cautions.
Sales Representative’s Responsibility
Acceptance of Shipment
1. If the unit shows any outward signs of damage, do not sign the delivery receipt
until you have closely inspected the unit and noted any damage on the delivery
receipt.
2. The sales representative from whom you purchased your unit is responsible for
supervising the correct installation of the unit in your vehicle and thoroughly training
you in its operation, maintenance and precautions.
Installation
• Correctly installing the unit and recovery tank in your vehicle and securing them with
bolts and tie down washers.
• Checking the pump, vacuum blower and engine oil levels prior to starting the unit.
• Starting the unit to check the drive system and see that all other systems function
normally.
• Checking all hoses, tools/wands and accessories for correct operation.
Training
• A thorough review of the Owner’s Manual with the purchaser.
• Instruction in and familiarization with:
1. How to correctly start up and shut down the unit
2. How to correctly clean with the unit
3. Where and how often to check and change component oil levels
4. How the unit’s systems work, how to troubleshoot the unit
5. How to do basic repairs
6. Safety precautions and their importance
7. How to avoid freezing damage
8. How to avoid hard water damage
• A thorough review of the unit warranty and warranty procedures.
• A thorough review of hard water precautions and warnings.
• How to determine hard water areas.
• Use of water softening systems.

9 - CDS 4.8 SV Owner’s Guide
ENGINE COMPUTER RELEARN
Because your vehicle’s engine is electronically controlled by a computer, some control
conditions are maintained by power from the battery. When the battery is disconnected
or a new battery is installed, the engine must relearn its idle and fuel trim strategy for
optimum driveability and performance. Flexible fuel vehicles (FFV) must also relearn the
ethanol content of the fuel for optimum driveability and performance.
To begin this process:
1. With the vehicle at a complete stop, set the parking brake.
2. Put the gearshift in P (Park), turn o󰀨 all accessories and start the engine.
3. Run the engine until it reaches normal operating temperature.
4. Allow the engine to idle for at least one minute.
5. Turn the A/C on and allow the engine to idle for at least one minute.
6. Release the parking brake. With your foot on the brake pedal and with the A/C on,
put the vehicle in D (Drive) and allow the engine to idle for at least one minute.
7. Drive the vehicle to complete the relearning process.
• The vehicle may need to be driven 10 miles (16 km) or more to relearn the idle
and fuel trim strategy along with the ethanol content for exible fuel vehicles.
• If you do not allow the engine to relearn its idle trim, the idle quality of your vehicle
may be adversely a󰀨ected until the idle trim is eventually relearned.
• For exible fuel vehicles, if you are operating on E85, you may experience poor
starts or an inability to start the engine and driveability problems until the fuel trim
and ethanol content have been relearned.
If the battery has been disconnected or a new battery has been installed, the clock and
radio settings must be reset once the battery is reconnected.

CDS 4.8 SV Owner’s Guide - 10
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 e󰀨ectiveness. This inuences the reliability and e󰀩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
e󰀨ectiveness 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 a󰀨ected parts.

11 - CDS 4.8 SV Owner’s Guide
Hard Water Area Map
The hard water map, shown in Figure 1, denes hard water areas in the lower 48 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.
The map shown in Figure 1 is provided for general reference only. Water hardness
in your geographical location should be conrmed by testing.
Figure 1. Hard Water Map of Mainland United States

CDS 4.8 SV Owner’s Guide - 12
Water Softener
Cleaning e󰀩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 CDS 4.8
SV machines in areas exceeding 3.0 grains per gallon (see Figure 2).
Failure to use a water softener in these areas will invalidate the machine’s warranty.
Referring to the hard water area map shown Figure 1-1, 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 is more than made up for by
an increased life of machine parts,
reduced chemical costs and continued
cleaning e󰀩ciency. The water softener
will also increase the e󰀨ectiveness 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 service
and regenerate 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 per 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 changed every 6 working days for maximum softening.
Figure 2. Conguration of Water
Softener and CDS

13 - CDS 4.8 SV Owner’s Guide
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 CDS 4.8 SV with an Automatic Waste Disposal System (AWDS). 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 Wastewater Disposal System (AWDS) which can be
ordered with new equipment or installed later.
When properly congured, the systems 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.
IN ACCORDANCE WITH EPA, STATE AND 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.

CDS 4.8 SV Owner’s Guide - 14
Operating Instructions
This section of the manual contains the following instructions:
Before Operating the CDS
CDS Start Up
CDS Flood Restoration Work
CDS Shut Down
3 Speed Throttle Control Function
BEFORE OPERATING THE CDS
1. Locate the unit and equipment in a well-ventilated area.
The CDS unit generates toxic fumes. Position the vehicle so that the fumes will
be directed away from the job site. Do not park where exhaust fumes can enter
a building through open doors, windows, air conditioning units or kitchen fans.
2. Check the fuel tank to be certain there is adequate fuel to complete the job.
3. Position the wheel chocks on one of the rear tires.
4. If using a water supply hose which has not been used recently or if using a customer’s
hose, rst connect the hose to the faucet and ush out any debris which may be in
the hose. Afterwards connect the hose to the unit.
5. Check the chemical jug to see if you have enough concentrated chemical to nish
the job. If not, mix and ll a 5 gallon chemical jug.
6. Connect all required hoses.
7. When connecting the pressure hose to the pressure outlet connections at the
front of the unit, go to the farthest area to be cleaned and connect to the cleaning
tool. This ensures that you have the proper length of hose required to perform the
cleaning.

15 - CDS 4.8 SV Owner’s Guide
CDS START UP
1. Make sure the vehicle’s gear select lever is in the Park position and the emergency
brake is set. Also make sure all accessories are turned o󰀨 (A/C, fan).
2. Start the vehicle’s engine.
3. Turn key on the CDS dash.
4. Select the cleaning speed appropriate for the cleaning job.
Starting in the low position is recommended due to the lower stress on the clutch
during start up.
5. Turn on the PUMP CLUTCH switch. Adjust cleaning pressure to desired level.
6. Turn on the PUMP IN switch (if equipped).
7. Turn the heat control valve to ‘MAX’ only if you will be using water. Do not activate
the heat exchanger during ood extraction work.
8. Turn the CHEMICAL SYSTEM valve to the ‘PRIME’ position to purge any air from
the system.
The prime hose is plumbed into the recovery tank. Leaving the valve in the
‘PRIME’ position will cause excessive chemical usage.
a. When the chemical begins to ow through the owmeter, with the ow indicator
reading maximum ow and the PRIME line pulsing, turn the CHEMICAL
SYSTEM valve to ‘ON’. Cap o󰀨 vacuum if necessary.
b. While spraying the solution from the cleaning tool, adjust the chemical ow by
turning the CHEMICAL METERING CONTROL to the desired level.
9. Optional: Turn the AWDS switch ‘ON’ if using the Automatic Pump-Out feature.
The pump will not engage until the water level rises inside the recovery tank.
10. Now proceed with the cleaning operation.
The machine will automatically shut down when the recovery tank reaches its full
capacity due to the oat switch located inside the tank. When this occurs, turn
the CDS key switch o󰀨 and empty the recovery tank. Then, turn the unit back on
and continue to clean.

CDS 4.8 SV Owner’s Guide - 16
CDS FLOOD RESTORATION WORK
When using equipment for ood damage, adjust the high pressure pump to zero. This will
reduce the engine power load and save on fuel consumption.
CDS SHUT DOWN
1. Flush clear water through the chemical system for 10 seconds.
2. Open the water box drain and actuate the tool/wand valve to run fresh water through
the water box, heat exchangers and cleaning tools.
If freeze guarding is necessary, perform the freeze guard procedure at this time.
Draining the water box to ½ full or less is recommended to reduce spillage inside
the vehicle.
Rinse the system with white vinegar on a weekly basis. Rinse the entire system
with descaler each month.
3. Lay vacuum hoses out in order for all moisture to be removed from the hoses. This
prevents spillage of any dirty solution in your vehicle when storing the hoses.
4. Disconnect the hoses and put them away.
5. If you are using an outside water source, turn the water supply faucet o󰀨. Bleed
pressure out of the supply hose by loosening the hose at the water supply. Unhook
the water supply hose and store it in the vehicle
6. Allow the unit to run for a few minutes with the vacuum hose disconnected in order
to remove all moisture from the vacuum pump.
7. Plug the vacuum inlets. Spray a Hydramaster-recommended lubricant (P/N 000-
087-006) into the lube port for about 5 to 10 seconds while the unit is running. This
will lubricate the vacuum pump and prevent it from rusting. (The lube port is located
on the front panel above the pressure gauge).
8. Remove the inlet plugs, then turn the ignition ‘OFF’ before draining the recovery
tank.
9. Turn the heat control valve to the ‘OFF’ position. This will help avoid engine overheat
problems due to reduced coolant ow through the radiator.
10. Drain the recovery tank.

17 - CDS 4.8 SV Owner’s Guide
If your CDS is equipped with an AWDS, rst connect a garden hose to the outlet
on the front of the machine.
If your CDS is equipped without an AWDS, drain the recovery tank through the
tank drain valve (under the chemical jug tray).
Do not dump waste in any area which might violate local, state or federal
law. If you have the optional AWDS, drain the recovery tank into a sanitary drain
system.
1. When the recovery tank is drained, lift the recovery tank lid and remove the lter
basket.
2. Clean out any accumulated debris.
3. Rinse and re-install.
4. Check the corrugated blower lter.
5. Clean out any accumulated debris.
6. Rinse and re-install.
When re-installing the blower lter, ensure that it is fully seated against its mount
so that debris cannot pass under it and into the blower.

CDS 4.8 SV Owner’s Guide - 18
3 SPEED THROTTLE CONTROL FUNCTION
▬For GM Vans ▬
The GM Throttle Controller must meet certain “Chassis Ready” conditions to elevate the
engine rpm, which are as follows:
1. Parking Brake is set
2. Gear shift is in “Park”
3. Foot is o󰀨 Service Brake (brake pedal)
4. Foot is o󰀨 Accelerator Pedal
5. Vehicle is stationary (no speed)
6. Engine is started and idling
7. The A/C / Heater switch is in o󰀨 position
The Throttle Controller must be initialized anytime the Data Link Cable (DLC)
harness is disconnected from the Data Link Connector. To initialize the system
switch ignition key to OFF position, plug in DLC harness, switch the ignition on,
and then start the engine. This allows the Throttle Controller to read the PCM
engine computer.
On the Throttle Controller, there are LED lights with corresponding labels to provide status
and problem detection information (refer to Figure 3 and Table 1).
Figure 3. Location of Controller’s LED Lights
with Labels and RPM Trim Potentiometers
3 TRIM POTS
LED LIGHTS WITH
LABELS