MD MD-AWD-150 User manual

Mustang Dynamometer MD-AWD-150 Page 1
MD-AWD-150 SERIES MANUAL REV.A

Mustang Dynamometer MD-AWD-150 Page 2
Information in this document is subject to change
without notice. No part of this document may be
reproduced or transmitted in any form or by any
means, electrical or mechanical, for any purpose,
without the express written permission of Mustang
Dynamometer.
Copyright 2012
Ganzcorp Investments, inc. dba Mustang
Dynamometer
All rights reserved
NOTICE
This manual has been designed and written to provide
useful information about Mustang Dynamometer
equipment and systems. Every effort has been made to
make this manual as complete and accurate as possible,
but no warranty or fitness is implied.
The information contained in this manual is provided on
an “as is” basis. Neither the author of this manual nor
the management and owners of Mustang Dynamometer
shall have either liability or responsibility to any person
or entity with respect to any loss or damages arising
from the information contained in this manual
Rev. B May, 2013

Mustang Dynamometer MD-AWD-150 Page 3
LWARNINGL
Do not operate or perform any maintenance on you
equipment until you have carefully read this manual in its
entirety making sure that you understand all of the material
presented in each section.
LWARNINGL
Unsafe operation practices can lead to potentially dangerous
situations when your machine is running.
Only properly trained and responsible personnel should
attempt to operate this machine.
LWARNINGL
Removal and disassembly instructions in this manual have
been reduced to a minimum for ease of readability.
Only experienced maintenance personnel should attempt to
install and/or make repairs to this machine.
LWARNINGL
Keep limbs, hair, jewelry and clothing away from the moving
rolls. When operating a vehicle on the machine, remain
inside the vehicle until the rolls have stopped, Cover the rolls
when the equipment is not in use.

Mustang Dynamometer MD-AWD-150 Page 4
WARNING
LIMIT OF LIABILITY
Mustang warrants that the product(s) that is the subject of this sale is free from defects in
material. The duration of this warranty is one year from date of shipment of all Mustang-
related components. Components not manufactured by Mustang will carry the original
manufacture’s warranty, typically 90 days for all electronic-related components. All
warranty claims must be processed through Mustang.
If a problem arises within the applicable warranty period, it is the responsibility of the
purchaser to (a) promptly notify Mustang in writing (b) obtain a RMA Number from
Mustang (c) return to Mustang the component(s) that are claimed to be defective
(transportation charges must be prepaid by the purchaser). RMA Number must be
clearly marked on the outside of the package(s).
Within a reasonable time after such notification, Mustang will correct any defect(s) in
component(s). If Mustang is unable to repair the component after a reasonable number
of attempts, or if Mustang determines at any time the repair is impracticable, Mustang will
provide a replacement with like or similar component(s). The purchaser is responsible for
all transportation expenses to and from Mustang and all labor expenses associated with
removal and replacement of the component(s) as well as labor involved to repair
component(s). Mustang will bear the expense of parts only. These remedies are the
Purchaser’s sole remedies for breach of warranty.
The expiration of the warranty period, use of the product for purposes other then those
fro which it is designed, other abuse or misuse, unauthorized attachments, modifications,
or disassembly, or mishandling of the product during shipping, shall end all liability of
Mustang.
In no case shall Mustang be liable for any special, incidental, or consequential damages
based upon breach of warranty, breach of contract, negligence, strict tort, or any other
legal theory. Such damages include but not limited to, loss of profits, loss of savings or
revenue, loss of use of product or any associated equipment, cost of capital, cost of any
substitute equipment, facilities or services, downtime, the claims of third parties including
customers, and injury to property.
Unless modified in writing and signed by officers of both parties, this agreement is
understood to be the complete and exclusive agreement between the parties,
superseding all prior agreements, oral or written and all other communications between
the parties relating to the subject matter of the agreement.
GANCORP INVESTMENTS INC. dba MUSTANG DYNAMOMETER

Mustang Dynamometer MD-AWD-150 Page 5
TABLE OF CONTENTS:
SECTION 1 – INTRODUCTION..........................................................................................................................7
1.1WHAT IS ACHASSIS DYNAMOMETER ........................................................................................................7
1.2ABOUT THIS MANUAL................................................................................................................................8
1.3IMPORTANT MESSAGE BOXES ....................................................................................................................9
1.4BEFORE YOU START.................................................................................................................................10
1.5IF YOU NEED HELP ..................................................................................................................................10
SECTION 2 – THE SYSTEM ..............................................................................................................................11
2.1 INTRODUCTION...............................................................................................................................................11
2.2 MAJOR SYSTEM COMPONENTS.......................................................................................................................11
2.2.1 Dynamometer .........................................................................................................................................12
2.2.2a Control and Monitoring System............................................................................................................13
2.2.2b Control and Monitoring System (not attached to Dyne)....................................................................... 14
2.2.3 Software System......................................................................................................................................14
2.3 PRINCIPLES OF OPERATION............................................................................................................................ 14
SECTION 3 – SAFETY FIRST............................................................................................................................15
3.1 INTRODUCTION...............................................................................................................................................15
3.2 GENERAL SAFETY ISSUES...............................................................................................................................16
3.3 OPERATIONAL SAFETY ISSUES .......................................................................................................................17
3.4 MAINTENANCE SAFETY ISSUES ...................................................................................................................... 18
SECTION 4 – INSTALLATION..........................................................................................................................19
4.1 INTRODUCTION...............................................................................................................................................19
4.2 INSPECTION ....................................................................................................................................................19
4.3 TOOLS AND EQUIPMENT NEEDED FOR INSTALLATION ................................................................................... 19
4.4 SHOP LAYOUT AND REQUIREMENTS............................................................................................................... 19
4.4.1 Pit Excavation (Belowground Installation Only) ...................................................................................19
4.4.2 Electrical ................................................................................................................................................20
4.4.3 Pneumatic (air)....................................................................................................................................... 20
4.4.4 Ventilation ..............................................................................................................................................20
4.4.5 Floor Anchors......................................................................................................................................... 20
4.4.6 Clearance ...............................................................................................................................................20
4.5 ABOVE GROUND INSTALLATION .................................................................................................................... 21
4.5.1 Above Ground Installation Procedure.................................................................................................... 21
4.6 BELOW GROUND INSTALLATION ....................................................................................................................27
4.6.1 Below-Ground Installation Procedure ................................................................................................... 27
INSTALLATION ILLUSTRATIONS:........................................................................................................................... 29
4.7 CONTROL INSTALLATION ............................................................................................................................... 29
4.8 PRE-OPERATIONAL INSPECTION......................................................................................................................32
SECTION 5 – OPERATIONAL CHECKOUT..................................................................................................33
5.1 INTRODUCTION...............................................................................................................................................33
5.2 INITIAL START................................................................................................................................................33
SECTION 6 – PREVENTATIVE MAINTENANCE.........................................................................................36
6.1 INTRODUCTION...............................................................................................................................................36
6.2 GENERAL INFORMATION &MAINTENANCE INSPECTION/PROCEDURES.......................................................... 36
6.2.1 Pillow Block Bearings............................................................................................................................36
6.2.2 Gear Toothed Couplings ........................................................................................................................37
6.2.3 Pneumatic Clutch Couplings..................................................................................................................38
6.2.4 P.A.U (Eddy Currents) ...........................................................................................................................39
PREVENTATIVE MAINTENANCE TIME TABLE........................................................................................41

Mustang Dynamometer MD-AWD-150 Page 6
SECTION 7 – TROUBLESHOOTING...............................................................................................................42
7.1 INTRODUCTION...............................................................................................................................................42
7.2 TROUBLESHOOTING GUIDE ............................................................................................................................ 42
SECTION 8 – APPENDIX ...................................................................................................................................45
APPENDIX A–TORQUE SPECIFICATIONS.............................................................................................................. 45
APPENDIX B–RECOMMENDED FLUIDS................................................................................................................ 48
APPENDIX C –ANCHOR POD INSTALLATION-NEW FLOORS.................................................................................49

Mustang Dynamometer MD-AWD-150 Page 7
SECTION 1–INTRODUCTION
1.1 WHAT IS ACHASSIS DYNAMOMETER
Today and in the future, automobiles and trucks will be required to meet increasingly stringent
emission and safety standards, In many cases, dynamic testing – either on-highway or with a
chassis dynamometer is the only way to adequately measure vehicle performance or emissions.
As Mustang Chassis Dynamometer (sometimes referred to as a “dyne” or “dyno”) is a rugged
piece of equipment which is used to apply a load to a test vehicle. The Mustang Chassis Dyne is
an integrated assembly of mechanical, electromechanical, and electrical/electronic sub-systems
which function together to provide you with the ability to simulate actual road loads while the
vehicle is being tested remains in the safe and controlled confines of a test center. In addition
during a test, this capability will also enable you to connect test instruments and diagnostic
equipment to the test vehicle’s engine to monitor specific engine performance characteristics.
As the torque from the test vehicle’s drive wheels cause the rolls of the Dyne to rotate, Mustang’s
air-cooled electrical eddy current Power Absorbing Unit (PAU) opposes this force by converting
the vehicle’s kinetic energy into heat. A microcomputer-based control unit, using closed-loop
feedback control, regulates the amount of power that is absorbed by the PAU and, as a result, the
amount of load that is imposed on the test vehicle.
The Chassis Dynamometer has emerged as a major asset in the areas of Emissions Testing,
Fault Diagnosis, Performance Engineering, and Test Engineering throughout the world. Chassis
Dynamometer can be used to perform a wide variety of test on vehicles; some examples of these
tests deal with…
Vehicle Heating & Cooling Systems
Engine Performance and Evaluation
Drive Train Component Evaluation
Transmission Components
Tire Testing
Track Lap Simulation
Road Grade Simulation
Trailer Towing Simulation
Fuel Efficiency
Auxiliary Components
Failure Analysis

Mustang Dynamometer MD-AWD-150 Page 8
1.2 ABOUT THIS MANUAL
This manual provides you with the information you will need to know when you want to install and
perform routine maintenance as well as more complex service on your MD-AWD-150-Series
Chassis Dynamometer. The following sections are included in this manual:
Section 1 – Introduction This is the section you are currently reading.
Section 2 – The Systems This section presents a description of the MD-
AWD-150-Series Chassis Dynamometer
System to familiarize you with its major
components. In addition, the principles of
dynamometer operation are discussed.
Section 3 – Safety First A number of very important safety tips are
presented in this section. Be sure to study
this section carefully!
Section 4 – Installation A step-by-step procedure is given in this
section to help ensure that your dyne is
installed properly.
Section 5 – Operational Checkout A sequence of operational checks is provided
in this section to verify that your system is
operating properly.
Section 6 – Preventative Maintenance General maintenance and lubrication
instructions are presented in this section.
Section 7 – Troubleshooting Some basic troubleshooting hints are
contained in this section.
Section 8 – Appendices The appendices contain reference information
that you can easily access when you need it.

Mustang Dynamometer MD-AWD-150 Page 9
1.3 IMPORTANT MESSAGE BOXES
When you read this manual, and operate/maintain your Mustang Dynamometer System, BE SURE
TO OBSERVE ALL DANGER, WARNING AND CAUTION ADVISORIES!
These advisories point out potentially hazardous procedures and conditions. As can be seen
below, all three types of advisories are enclosed in a box to call attention to them.
l DANGER
This is an example of a DANGER message. A DANGER message alerts a
person that sever bodily injury or loss of life could occur if procedures are not
followed.
v DANGER
This is an example of an electrical DANGER message. An electrical DANGER
message alerts a person that, as a result of electrical shock, severe bodily injury
or loss of life could occur if procedures are not followed.
l WARNING
This is an example of a WARNING message. A WARNING message alerts a
person to potential bodily injury if procedures are not followed.


CAUTION
This is an example of a CAUTION message. A CAUTION message alerts a
person that if procedures are not followed, damage to, or destruction of the
equipment could result.


NOTE
This is an example of a NOTE box. A NOTE box is generally used to bring to
your attention information that should be of particular benefit, information that
pertains to a special situation, etc.

Mustang Dynamometer MD-AWD-150 Page 10
1.4 BEFORE YOU START
Before attempting to operate your Dynamometer for normal usage, it is very important that…
Your Dynamometer has been properly installed.
Your Dynamometer has been properly maintained.
Your Dynamometer has been properly calibrated. Please refer to the MD- PowerDyne
software manual.
All personnel who will be performing maintenance and service on your Dynamometer
have read this manual in its entirety and understand all of the information presented.
1.5 IF YOU NEED HELP
Much effort has been extended to make this manual easy to work with as well as complete and
accurate. However, if there is something that you do not understand or something that you have a
question about, please feel free to contact a Mustang Representative at...
MUSTANG DYNAMOMETER
2300 PINNACLE PKWY.
TWINSBURG,OHIO 44087 USA
PH:[phone]
FAX:[phone]
[e-mail]

Mustang Dynamometer MD-AWD-150 Page 11
SECTION 2–THE SYSTEM
2.1 INTRODUCTION
This section of the manual provides general information that will help you to develop a
comprehensive understanding of your new MD- AWD-150-Series Dynamometer System. The
following topics are covered in this section:
Major System Components
Principles of Operation
When learning to operate and/or maintain your new Dynamometer we strongly suggest that you
take a few moments to familiarize yourself with the information presented in this section of the
manual. Doing so will greatly help you to understand the information that is presented in other
sections of this manual.
2.2 MAJOR SYSTEM COMPONENTS
The Major components of a MD- AWD-150-Series Dynamometer System can be grouped into
the following categories, which are discussed below:
Dynamometer
Control and Monitoring System
Software System

Mustang Dynamometer MD-AWD-150 Page 12
2.2.1 Dynamometer
The Dynamometer sub-system is defined here as being comprised of primarily those
system components that are “mechanical” or “structural” in nature. These components
are illustrated and discussed below.
Fig. 2.1
.
Key (fig. 2.1)
1. Frame Double welded heavy structural steel frame.
2. Pillow Block
Bearings
Ball bearings are mounted in a green cast iron pillow
block housing for exceptional strength. Bearings can
float to minimize misalignment of shafts.
3. Rolls The dyne is equipped with a Drive Roll set and an Idler
Roll set. All rolls are dynamically balanced for speeds
up to 150 MPH. The surfaces of the rolls are grooved to
provide maximum traction and good tracking.
4. Coupling High power couplings are used to accurately transmit
speed and power to instrumentation.
5 Pneumatic
Clutch
High power coupling that is used to disengage the
AWD half of the dynamometer so you can test 2 wheel
drive vehicles and Motorcycles.

Mustang Dynamometer MD-AWD-150 Page 13
2.2.2a Control and Monitoring System
The Control and Monitoring Sub-system is defined here as being comprised of those
electrical, electro-mechanical, and electronic system components that are primarily used
to control the operation of the system and to monitor the behavior of the vehicle during a
test. Only those Control and Monitoring Sub-system components that are mounted on
the dynamometer are considered in this section; these components are illustrated and
discussed below. (See fig. 2.2)
Fig. 2.2
Key (Fig 2.2)
1. Power Absorber
Unit (PAU)
Eddy current Power Absorbing Units (P.A.U’s) provide
infinitely variable loading without the use of water or
hydraulics. The PAU can operate while rotating in
either direction. Its rugged construction enables it to be
operated under extremely demanding conditions. The
PAU is wired for 96 VDC operation.
2. PAU Load Cell The strain gauge load cell, excited with 10 VDC,
produces a DC output signal as it is either compressed
or expanded. The rated accuracy of the Load Cell is
±0.1%
3. Magnetic Pick-up One revolution of the drive line will cause 60 pulses to
be generated. By measuring the time between pulses
generated, the speed of the rotation can be calculated.

Mustang Dynamometer MD-AWD-150 Page 14
2.2.2b Control and Monitoring System (not attached to Dyne)
This section will define the Control and Monitoring Sub-system that are not attached to
the dyne.
2.2.3 Software System
PowerDyne PC software (the complete PowerDyne PC manual can
be found on the software back-up CD.)
2.3 PRINCIPLES OF OPERATION
A Mustang Chassis Dynamometer will give you the ability to simulate actual road loads
while the vehicle is stationery. This enables you to perform tests on a vehicle while test
diagnostic instruments are connected to the vehicle’s engine and exhaust system.
The Dynamometer consists primarily of drive roll sets, power absorbing units (PAUs).
The PAUs are belted directly in the dyne’s driveline. It is prevented from “freely” rotating
by the installation of the load cell. The “load” is measured by the load cell and is
transmitted to the control system via an electrical signal. The PAU absorbs this load by
energizing stationary electric field coils with a direct current. These coils establish
magnetic fields through which the iron rotors of the PAU are rotated. This rotation
generates eddy-currents in the rotors, which produce a force that is counter to the
direction of the rotary motion. The power absorbed by the PAU is dependent upon the
amount of DC power applied to the field coils and the RPM of the spinning rotors. The
speed of rotation of the rotors is measured by a magnetic device called a magnetic
pickup and is transmitted to the control system.
When both torque (from the load cell signal) and speed (from the magnetic pickup signal)
are known, horsepower can easily be determined.

Mustang Dynamometer MD-AWD-150 Page 15
SECTION 3–SAFETY FIRST
3.1 INTRODUCTION
l DANGER
Dynamometer operation is potentially
dangerous. For your own safety, read and
understand the following warnings before
conducting any tests. If you cannot read
English, or have difficulty understanding
these warnings, please ask a supervisor or
co-worker to explain them to you.
v DANGER
This equipment contains voltages, which may
be hazardous if contacted. Avoid contacting
terminals, binding posts, and other exposed
connections.
Throughout this manual you will encounter DANGER, WARNING, and CAUTION messages.
These messages are intended to alert you to situations that are potentially dangerous to you or
damaging to your machine. Please pay attention to these advisories and follow the directions
given in them.
The safety messages presented below are categorized as follows:
General Safety Issues
Operational Safety Issues
Maintenance Safety Issues
The GENERAL SAFETY ISSUES apply whenever you are working with the dyne for any reason.
The OPERATIONAL SAFETY ISSUES alert you to hazards that may arise during the operation of the
dynamometer whether it is being operated for vehicle testing or during an operational checkout.
The MAINTENANCE SAFETY ISSUES alert you to hazards that may arise when you are performing
maintenance and service on you dynamometer system.
Please be sure to read and follow the directives in all of the safety messages given in this
section.

Mustang Dynamometer MD-AWD-150 Page 16
3.2 GENERAL SAFETY ISSUES
BE KNOWLEDGEABLE – Do not attempt to operate, maintain or service your Chassis
Dynamometer System until you have familiarized yourself with the equipment by reading the
instructions in this manual.
PREPARE CORRECTLY – To avoid possible injury to personnel or damage to equipment do not
apply power to your Dynamometer System until the following procedures have been
satisfactorily completed;
Installation (section 4)
Operational Checkout (section 5)
ACT RESPONSIBLY – Exercise caution and discretion when operating or performing maintenance
on your dyne. Always observe typical, common sense test area precautions.
BEWARE OF PROJECTILES – Tires that are rotating at high rates of speed can throw off stones
and other projectiles. Wear approved safety glasses when in the vicinity of the vehicle being
tested.
PROTECT YOUR EARS – Dynamometer noise can damage your hearing. Always wear approved
ear protection when working near the Dynamometer.
BEWARE OF BEING GRABBED – Keep limbs, hair, jewelry, and clothing away from the moving
dynamometer rolls, belts, couplings, etc.
COVER ROLLS – The rolls can move freely whenever the roll brake is not applied. Never walk
on the rolls. Cover the rolls when the dynamometer is not in use.
PAY ATTENTION – Maintain acute awareness when the dynamometer rolls are in motion.

Mustang Dynamometer MD-AWD-150 Page 17
3.3 OPERATIONAL SAFETY ISSUES
VENT ENGINE EXHAUST – Provide adequate room ventilation. High concentrations of engine
exhaust can be deadly. Do not operate your dynamometer without proper ventilation. The
shop ventilation system should exchange 300 to 500 cubic feet of air per minute (500 cfm
preferred).
MONITOR CARBON MONOXIDE – Make sure you have installed a carbon monoxide monitor in the
dynamometer bay.
GUARDING – Provide floor markings and protective guard railings for customer/operator
protection. NEVER operate your dyne with any of its cover panels removed unless specifically
directed to do so elsewhere in this manual.
REFRESH YOUR KNOWLEDGE – Regularly review the operating procedures presented in this
manual.
KEEP CLEAR OF ROLLS – Stay away from the rolls when in operation.
Protect Eyes and Ears – Make sure that you wear proper eye and ear protection when
operating the dyne.
CHECK TIRES – Before driving the test vehicle onto the dyne, be sure to check the vehicle’s tires
for proper inflation. Inspect the tires for any signs of damage and remove any large embedded
objects from the tread.
RESTRAIN VEHICLE MOVEMENT – During dynamometer operation it is common for the test vehicle
to move laterally on the rolls. Also, unrestrained vehicles can launch off the dyne, causing
death or serious injury.
To prevent personal injury and/or damage to the test vehicle, it is imperative that prior to testing
the vehicle, you secure the test vehicle in all directions (front, rear, and sides) with approved
safety restraints that are bound to properly installed floor anchor pods.
WHEEL CHOCKS – use wheel chocks for your 2WD test vehicles. Install one inch in front of non-
driven wheels of test vehicle.
PROPER CLEARANCE – Always ensure that there is a clearance of at least four (4) feet to the
front, rear, and sides of the dynamometer.
STAY SEATED – The vehicle operator MUST remain in the driver’s seat at all times during a
drive-cycle test. DO NOT attempt to get in or out of the vehicle while the dynamometer rolls are
moving.
IF IN DOUBT,STOP!– Stop the equipment immediately if you have any doubt about the safe
operating condition of the dynamometer and/or the correctness of any procedure that you are
performing.

Mustang Dynamometer MD-AWD-150 Page 18
3.4 MAINTENANCE SAFETY ISSUES
ELECTRICAL SHOCK HAZARD – Turn off electrical service to the system before performing any
maintenance activity. Turn off the main breaker in your breaker box before working on anything
related to the PAU.
NO JEWELRY – Before performing any electrical or mechanical trouble-shooting, repair, etc. on
the dyne, it is highly advisable to remove any jewelry that you may be wearing.
DYNE COVER PANELS – use extreme caution around drive mechanisms and moving parts when
operating the dyne with any of its cover panels removed from the chassis assembly.
AVOID STRAINING YOURSELF – Be careful when lifting dyne cover panels – they are very heavy.
Be very careful when replacing belts, couplings, or bearings – the rolls are very heavy and can
be difficult to handle.
AIR PRESSURE – Make sure that there is no air pressure in the lines whenever you are working
on the roll locks, frame lock or pneumatic on/off couplings.
WATCH YOUR HANDS – Never put your hands between the rolls brakes and the roll when there is
air hooked up to the system.
NEVER, NEVER, NEVER! – Never pull on the drive belt in order to spin the rolls.
CHECK TIGHTNESS – Make sure that all bolts on the Dyne are tight and all couplings are properly
secured.

Mustang Dynamometer MD-AWD-150 Page 19
SECTION 4–INSTALLATION
4.1 INTRODUCTION
This section of the manual provides instructions that you should follow when installing your new
MD-AWD-150-Series Chassis Dynamometer.
These first few steps apply to both above ground and below ground installations.
4.2 INSPECTION
After unloading the dynamometer from the delivery truck and prior to the departure of the truck
driver a visual inspection must be made of the dynamometer. If there is any apparent damage
to the shipping crates it must be noted on the bill of lading prior to accepting the delivery of the
dynamometer. After uncrating the equipment check the contents of the crates with the
enclosed packing list. The following is a list of items that should have been received. Notify
Mustang Dynamometer immediately if you find any shortages or damage with this shipment.
4.3 TOOLS AND EQUIPMENT NEEDED FOR INSTALLATION
You will need a complete set of standard hand tools, a hammer drill with 5/8-masonry bit, and a
4-foot bubble level. You will also need a forklift with a capacity of at least 12,000 lbs., a
minimum of (2) 18’ chains with hooks, and a come-along or hoist. Shim stock for leveling the
dyne also may be required.
4.4 SHOP LAYOUT AND REQUIREMENTS
This section includes minimum requirements necessary to install the dynamometer and ensure
safe operation. After determining which method of installation is best for you it is necessary to
adhere to the following conditions.
4.4.1 Pit Excavation (Belowground Installation Only)
A below ground installation requires a floor opening of a very specific dimension. If you
have decided that a belowground installation is best for you and your facility, a detailed
blueprint was sent to you prior to the dynamometers arrival. However if you chose to
have the dyne and prints sent at the same time it is recommended that you contract the
services of a licensed contractor to perform the excavating of the dynamometer pit.
l WARNING
The installer of the dynamometer accepts
full responsibility for adhering to local, state
and federal construction codes. The
factory will not be held liable for damage or
injury caused by improper installation.

Mustang Dynamometer MD-AWD-150 Page 20
4.4.2 Electrical
Your new dynamometer will require the following electrical services to operate. A 115
VAC, single phase, 15 Amp circuit is required for the host computer system located on
the roll-around cart.
For the single PAU configuration you will need 230VAC, Single Phase, 40Amps
Two (2) PAU configuration you need 230VAC, Three Phase, 40Amps
Your local electrical codes will determine how these circuits should be wired.
4.4.3 Pneumatic (air)
The Dynamometer requires an air supply line to operate the roll brake systems, the
movable base locking system and for the air on/off couplings. The airline should supply
at least 100 psi but not more than 120 psi. An air dryer and regulator needs be
installed in the main supply line.
4.4.4 Ventilation
Your shop should be equipped with an effective ventilation system to direct tailpipe
emissions to the outside air. Exhaust vents should be able to connect to all types of
vehicles (front-wheel drive, rear-wheel drive, dual exhaust, etc.)
4.4.5 Floor Anchors
It is common for vehicles to move laterally on the rolls during dynamometer operation.
To prevent personal injury and damage to the vehicle it is imperative that the vehicle is
secured with chains or straps. The dynamometer (belowground only) is shipped with
floor anchor pods that must be permanently installed as illustrated in the Appendix.
4.4.6 Clearance
It is important to have enough room around the dynamometer to allow equipment to be
move around the service bay area. At least 18 feet clearance is needed in front of the
dynamometer so that the vehicle under test has enough room to pull in the service bay.