Dynojet 424 Linx Installation Guide
©2009-2013 Dynojet Research, Inc. All Rights Reserved.
Linx Installation for Model 424 Automotive Dynamometers
This manual is copyrighted by Dynojet Research, Inc., hereafter referred to as Dynojet,
and all rights are reserved. This manual, and the software described in it, is furnished
under license and may only be used or copied in accordance with the terms of such
license. This manual is furnished for informational use only, is subject to change without
notice, and should not be construed as a commitment by Dynojet. Dynojet assumes no
responsibility or liability for any error or inaccuracies that may appear in this manual.
Except as permitted by such license, no part of this manual may be reproduced, stored in
a retrieval system, or transmitted, in any form or by any means, electronic, mechanical,
recording, or otherwise, without the prior written permission of Dynojet.
The Dynojet logo is a trademark of Dynojet Research, Inc.
Any trademarks, trade names, service marks, or service names owned or registered by any
other company and used in this guide are the property of their respective companies.
Dynojet Research, Inc., 2191 Mendenhall Drive, North Las Vegas, Nevada 89081, USA.
Printed in USA.
Part Number: 98200021 Version 06 (05/2013)
T
ABLE OF
C
ONTENTS
424 Linx Installation
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Conventions Used In This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Drill and Drill Bit Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Linx Belt Drive Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Linx Belt Drive Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Unpacking the Linx Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Dynojet Logo Panels and Pit Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Removing the Dynojet Logo Panels—Above Ground . . . . . . . . . . . . . . . . . . 7
Removing the Pit Covers—In Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Inner Mounting Plate Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installing the Inner Mounting Plate—Moveable Dyno . . . . . . . . . . . . . . . . 10
Installing the Inner Mounting Plate—Stationary Dyno . . . . . . . . . . . . . . . . 12
Flange Bearing, Outer Shaft, and Splined Shaft Installation . . . . . . . . . . . 13
Drive Pulley Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Idler Pulley Assembly Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Belt and Tensioner Pulley Assembly Installation . . . . . . . . . . . . . . . . . . . . . 18
Pulley Mounting Plates and Outer Bearings Installation . . . . . . . . . . . . . . 20
Installing the Idler Pulley Outer Bearing, Bearing Mounting Plate,
and Lower Pulley Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Installing the Moveable Dyno Pulley Outer Bearing, Bearing
Mounting Plate, and Lower Pulley Mount . . . . . . . . . . . . . . . . . . . . . . . . . 22
Installing the Upper Moveable Dyno and Idler Pulley Mounts . . . . . . . . . . 23
Installing the Stationary Dyno Pulley Outer Bearing, Bearing
Mounting Plate, and Lower Pulley Mount . . . . . . . . . . . . . . . . . . . . . . . . . 26
Installing the Upper Stationary Dyno Pulley Mount . . . . . . . . . . . . . . . . . . 27
Brake Signal Relay Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Tension the Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Above Ground Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
In Ground Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Disconnect the Belt Drive from the Dyno Drums . . . . . . . . . . . . . . . . . . . . 41
Reconnecting the Belt Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Linx Installation for Model 424 Automotive Dynamometers
i
TABLE OF CONTENTS
Appendix A Red Head Anchor Installation
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Appendix B Disconnect the Belt Drive from the
Dyno Drums—Early Version Shafts
Disconnect the Belt Drive from the Dyno Drums . . . . . . . . . . . . . . . . . . .B-2
Appendix C Shaft Safety Wire Installation
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2
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Linx Installation for Model 424 Automotive Dynamometers
424 L
INX INSTALLATION
Thank you for your interest in Dynojet’s Automotive Dynamometers. Dynojet’s
software and dynamometers will give you the power to get the maximum
performance out of vehicles you evaluate. Whether you are new to the benefits of a
chassis dynamometer or an experienced performance leader, the repeatability and
diagnostic tools of WinPEP 7 software and a Dynojet dynamometer (dyno) will give
you the professional results you are looking for.
The Linx belt drive system synchronizes the speed of the front and rear drums for
testing sensitive all-wheel drive and two-wheel drive vehicles with traction control.
This document is designed to help you install the Linx system on your model 424
automotive dyno. To ensure safety and accuracy in the procedures, perform the
procedures as they are described.
Note: The Linx system is for 88-130-inch wheel base dynos only and cannot be
used with the extension kit.
Document Part Number: 98200021
Versio n 6
Last Updated: 05-30-13
This chapter is divided into the following categories:
•Introduction, page 2
• Linx Belt Drive Specifications, page 3
• Unpacking the Linx Parts, page 4
• Dynojet Logo Panels and Pit Covers, page 7
• Inner Mounting Plate Installation, page 10
• Flange Bearing, Outer Shaft, and Splined Shaft Installation, page 13
• Drive Pulley Installation, page 15
• Idler Pulley Assembly Installation, page 17
• Belt and Tensioner Pulley Assembly Installation, page 18
• Pulley Mounting Plates and Outer Bearings Installation, page 20
• Brake Signal Relay Installation, page 29
• Tension the Belt, page 31
• Above Ground Covers, page 33
• In Ground Covers, page 37
• Disconnect the Belt Drive from the Dyno Drums, page 41
Linx Installation for Model 424 Automotive Dynamometers
1
424 LINX INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
INTRODUCTION
Thank you for your interest Dynojet’s Automotive Dynamometers. Before installing
the Linx system, please take a moment to read this guide for proper installation
procedures.
Note: The Linx system is for 88-130-inch wheel base dynos only and cannot be
used with the extension kit.
CONVENTIONS USED IN THIS MANUAL
The conventions used in this manual are designed to protect both the user and the
equipment.
example of convention description
The Caution icon indicates a potential hazard to the
dynamometer equipment. Follow all procedures
exactly as they are described and use care when
performing all procedures.
The Warning icon indicates potential harm to the
person performing a procedure and/or the
dynamometer equipment.
DRILL AND DRILL BIT REQUIREMENTS
You will need to provide a drill and drill bit capable of drilling holes in concrete. Refer
to Appendix A for more information on installing Red Head Anchors.
• drill bit size: 1/2-inch
• minimum hole depth: 1 5/8-inch (41.2 mm)
TECHNICAL SUPPORT
For assistance, please contact Dynojet Technical Support at 1-800-992-3525, e-mail
Dynojet at dynosales@dynojet.com, or write to Dynojet at 2191 Mendenhall Drive,
North Las Vegas, NV 89081.
Visit us on the World Wide Web at www.dynojet.com where Dynojet provides state of
the art technical support, on-line shopping, 3D visualizations, and press releases
about our latest product lines.
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Linx Installation for Model 424 Automotive Dynamometers
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LINX BELT DRIVE SPECIFICATIONS
XD085
372.03 cm (146.46 in.)
frame, brake, and Linx option
441.96 cm (174.00 in.)
Linx option
50.80 cm (20.00 in.)
Linx option
The following specifications specific to the Linx belt drive dyno application will help
you set up your dyno area and verify you have met the requirements necessary to
operate your dyno safely.
For more detailed information about your dyno specifications, refer to the installation
guide included with your dyno.
LINX BELT DRIVE SPECIFICATIONS
description specifications
Length
of Linx option 441.96 cm (174.00 in.)
Width
of frame with eddy current brake and
Linx option
of Linx option 50.80 cm (20.00 in.)
Maximum Speed 290 kph (180 mph)
372.03 cm (146.46 in.)
424 LINX INSTALLATION
Linx Belt Drive Specifications
Version 6 Linx Installation for Model 424 Automotive Dynamometers
Figure 1: Above Ground Model 424xLC2 Dyno with Linx Belt Drive Dimensions
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424 LINX INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unpacking the Linx Parts
UNPACKING THE LINX PARTS
Use the following steps to unload your Linx system parts.
1 Using a pry bar, or a large flat screwdriver, and a hammer, carefully remove the
top and sides of the crate. At this point, you will want to inspect the exterior of
the dyno for any indications of damage. Report any damage immediately.
2 Remove the following parts from the crate and set aside.
part description part description
stationary pulley mounting
plate
P/N 21200083
anchor, red head, 3/8" (10
above ground, 6 additional
for in ground, plus 2 extra)
P/N 37513200
moveable pulley mounting
plate
P/N 21200090
idler pulley mounting plate
P/N 21200091
belt cover, end panel (2)
P/N 21200095
belt cover, top (2)
P/N 21200097
belt cover, leg (8)
P/N 21400006
installation tool, red head
anchor
P/N 37518200
v-belt 10/5V3800
P/N 46200007
idler pulley assembly
61100007
tensioner assembly
P/N 61100008
belt cover, front panel
assembly (2)
P/N 61100013
belt cover, center support
P/N 21600026
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Linx Installation for Model 424 Automotive Dynamometers
upper stationary pulley
mount
P/N 61300022
424 LINX INSTALLATION
Unpacking the Linx Parts
part description part description
flange bearing with lock
collar (6)
P/N 32300001
lower stationary pulley
mount (3)
P/N 61300023
bushing (2)
includes three bolts and
washers per bushing
P/N 32300002
grooved pulley (2)
P/N 32300003
safety wire
P/N 35300002
screw, 1/4-20 x 1.75",
shcs, drilled (4)
P/N 36500016
screw, 1/4-20 x 1.25",
shcs, drilled (4)
P/N 36500017
inner stationary dyno
mounting plate
P/N 61300024
upper moveable pulley
mount
P/N 61300025
lower moveable pulley
mount
P/N 61300026
inner moveable dyno
mounting plate
P/N 61300027
outer shaft, drive pulley (2)
P/N 61300030
screw, 1/4-20 x 5/8", panhead, torx, black (64 above
ground, 16 in ground)
P/N 36561045
bolt, 3/8-16 x 1.5", flangehex (2)
P/N 36582471
Version 6 Linx Installation for Model 424 Automotive Dynamometers
tension arm assembly
P/N 62100003
splined shaft (2)
P/N 62200006
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424 LINX INSTALLATION
Unpacking the Linx Parts
part description part description
nut, 9/16-12, hex (24)
P/N 36711100
nut, 3/8-16, hex (2)
P/N DM150-011-004
bolt, 9/16-12 x 2", hex (12)
P/N 36811640
washer, 1/4", lock (4)
P/N 36900001
washer, 3/8", hardened, flat
(86 above ground)
P/N 36923100
6 additional for in ground as
P/N DM150-011-002
washer, 9/16", flat (24)
P/N 36943101
The following parts are included in the In Ground Installation P/N 78100007:
pit cover mount
P/N 21200098
bolt, 3/8-16 x 1.25", hex (4)
included as extras
P/N DM150-011-006
bolt, 3/8-16 x 1", hex (85
above ground, 1 to de
couple the drums, 6
additional for in ground)
P/N DM150-019-012
nut, crush, 1/4-20 (8 above
ground, 4 in ground)
P/N DM150-020-005
bolt, 3/8-16 x 1/2", buttonhead flange allen, (8)
P/N 36580434
calibration access cover (2)
P/N 21217513
feet (6)
P/N 21919101
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Linx Installation for Model 424 Automotive Dynamometers
pit cover assembly (2)
P/N 61329400
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DYNOJET LOGO PANELS AND PIT COVERS
XD001
logo panel
The Linx option can only be installed on one side of the dyno, refer to Figure 1. When
the Linx option is being installed on an existing above ground dyno, the Dynojet logo
panels must be removed. When the Linx option is being installed on an existing in
ground dyno, the pit covers must be removed.
If your Dynojet logo panels or pit covers are already removed, continue with “Inner
Mounting Plate Installation” on page 10.
424 LINX INSTALLATION
Dynojet Logo Panels and Pit Covers
REMOVING THE DYNOJET LOGO PANELS—ABOVE GROUND
Repeat the following steps for each logo panel.
1 Remove the five 1/4-20 x 5/8-inch pan-head torx screws securing the logo panel to
the mounting brackets. Set these screws aside.
2 Remove the logo panel and set aside.
Figure 2: Remove the Dynojet Logo Panel
Version 6 Linx Installation for Model 424 Automotive Dynamometers
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424 LINX INSTALLATION
XD002
XD003
mounting bracket
lower mounting bracket
Dynojet Logo Panels and Pit Covers
3 Remove the two 7/16-14 x 1-inch hex bolts, two 7/16-inch flat washers, and two
7/16-14 nuts securing the lower mounting bracket to the dyno. Set the hardware
aside.
4 Remove the lower mounting bracket and set aside.
5 Remove the two 3/8-16 x 3/4-inch hex bolts and two 3/8-inch flat washers securing
each mounting bracket to the dyno. Set the hardware aside.
6 Remove each mounting bracket and set aside.
Figure 3: Remove the Logo Panel Mounting Brackets
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Linx Installation for Model 424 Automotive Dynamometers
424 LINX INSTALLATION
XD004
XD005
rear deck brace
mounting bracket
rear deck brace
Dynojet Logo Panels and Pit Covers
7 Remove the two 3/8-16 x 1.5-inch flange hex bolts, washers, and nuts securing the
rear deck brace to the mounting bracket. Set the hardware aside.
8 Remove two 3/8-16 x 1.5-inch flange hex bolts securing the rear deck brace
mounting bracket to the dyno. Set the hardware aside.
9 Remove the rear deck brace mounting bracket and set aside.
Figure 4: Remove the Rear Deck Brace Mounting Bracket
REMOVING THE PIT COVERS—IN GROUND
If present, remove any pit covers on this side of the dyno.
Version 6 Linx Installation for Model 424 Automotive Dynamometers
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424 LINX INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
XD006
for in ground
installations only
inner mounting plate
Inner Mounting Plate Installation
INNER MOUNTING PLATE INSTALLATION
Use the following instructions to install the moveable dyno and stationary dyno inner
mounting plates.
You will need the following parts:
• 36582471 Bolt, 3/8-16 x 1.5", Flange-Hex (2)
• 36923100 Washer, 3/8", Flat (18)
• 61300024 Inner Mounting Plate, Stationary Dyno
• 61300027 Inner Mounting Plate, Moveable Dyno
• DM150-011-004 Nut, 3/8-16, Hex (2)
• DM150-019-012 Bolt, 3/8-16 x 1", Hex (16)
INSTALLING THE INNER MOUNTING PLATE—MOVEABLE DYNO
1 Secure the inner mounting plate to the moveable dyno using eight 3/8 x 1-inch
bolts and eight 3/8-inch flat washers.
Note: For above ground installations, use only six 3/8 x 1-inch bolts and
six 3/8-inch flat washers.
Figure 5: Secure the Inner Mounting Plate to the Moveable Dyno
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Linx Installation for Model 424 Automotive Dynamometers
424 LINX INSTALLATION
XD007
access hole
XD008
XD009
rear deck brace
mounting bracket
rear deck brace
Inner Mounting Plate Installation
2 Using the access holes, secure the bottom of the inner mounting plate to the
moveable dyno using two 3/8-16 x 1.5-inch flange bolts, two 3/8-inch flat washers,
and two 3/8-inch nuts.
Figure 6: Secure the Bottom of the Inner Mounting Plate to the Moveable Dyno
The following steps are for the above ground dyno only.
3 Secure the rear deck brace mounting bracket to the inner mounting plate and
dyno using the two 3/8-16 x 1.5-inch flange-hex bolts removed earlier.
4 Secure the rear deck brace to the mounting bracket using the two
3/8-16 x 1.5-inch flange-hex bolts, washers, and nuts removed earlier.
Figure 7: Secure the Rear Deck Brace and Mounting Bracket
Version 6 Linx Installation for Model 424 Automotive Dynamometers
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424 LINX INSTALLATION
XD010
inner mounting plate
Inner Mounting Plate Installation
INSTALLING THE INNER MOUNTING PLATE—STATIONARY DYNO
Secure the inner mounting plate to the stationary dyno using eight 3/8 x 1-inch bolts
and eight 3/8-inch flat washers.
Figure 8: Secure the Inner Mounting Plate to the Stationary Dyno
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Linx Installation for Model 424 Automotive Dynamometers
424 LINX INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
XD049
flange bearing
outer shaft
Flange Bearing, Outer Shaft, and Splined Shaft Installation
FLANGE BEARING, OUTER SHAFT, AND SPLINED SHAFT INSTALLATION
Use the following instructions to install the flange bearing, splined shaft, and outer
shaft on both the moveable and stationary dynos.
You will need the following parts:
• 32300001 Flange Bearing with Lock Collar (2)
• 36500016 Screw, 1/4-20 x 1.75", SHCS, Drilled (4)
• 36711100 Nut, 9/16-12, Hex (8)
• 36943101 Washer, 9/16", Flat (8)
• 61300030 Drive Pulley Shaft (Outer Shaft) (2)
• 62200006 Splined Shaft (2)
1 Place the flange bearing on the threaded studs on the inner plate.
2 Loosely secure the flange bearing to the inner plate using four 9/16-inch washers
and four 9/16-inch nuts.
3 Slide the outer shaft into the bearing.
Figure 9: Install the Flange Bearing and Outer Shaft
Version 6 Linx Installation for Model 424 Automotive Dynamometers
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