Corrsys Datron Correvit SFII P User manual
CORREVIT SFII P
Non-Contact Optical Sensor
®
for
slip-free measurement of longitudinal
and transversal dynamics
USER MANUAL
VOLUME I
Sensor Hardware
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 2
Note:
For a general description of the CeCalWin Pro Software please refer
to the separate user manual Volume II.
For the specific software description please refer to the separate
user manual Volume III.
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 3
CORREVIT®is a registered trademark of CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar.
CORRSYS-DATRON Sensorsysteme GmbH reserves the right to change specifications without prior notice.
Appendix: Technical Drawings
CAN Protocoll
VOLUME I - Sensor Hardware
Table of Contents
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2. Extent of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3. Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.2 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.2.1 PC (RS232) / CAN Outputs . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.2.2 Power Connector Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.2.3 Analog/Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.3 Internal Signal Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.4 Typical Data Plots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4. Set-up and Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.1 Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.2 Sensor Mounting Jig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.3 Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.3.1 Mounting with Suction Holders . . . . . . . . . . . . . . . . . . . . . . . .13
4.3.2 Mounting with Magnetic Plate Mounting Unit . . . . . . . . . . . . . .15
4.3.3 Wheel Mount Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
4.4 Connecting the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 4
General Information
Legal Notice
Information furnished is believed to be accurate and reliable. However, CORRSYS-DATRON assumes
no responsibility for the consequences of use of such information nor for any infringement of patents
or other rights of third parties which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of CORRSYS-DATRON. Specifications mentioned in this
publication are subject to change without notice and do not represent a commitment on the part of
CORRSYS-DATRON. This publication supersedes and replaces all information previously supplied.
All brand names are trademarks of their respective holders.
Copyright
© Copyright 2008, CORRSYS-DATRON
Revision
D062-50-01-04E 02/08
Contact
International Headquarters:
CORRSYS-DATRON Sensorsysteme GmbH
Charlotte-Bamberg-Str. 12
35578 Wetzlar / Germany
Phone ++49 (6441) 9282-0
Hotline ++49 (6441) 9282-82
Fax ++49 (6441) 9282-17
E-mail [email protected]
URL www.corrsys-datron.com
North American Headquarters:
CORRSYS-DATRON Sensorsystems, Inc.
21654 Melrose Avenue, Building 16
Southfield, MI 48075 / USA
Phone ++1 (248) 204-0850
Toll-free++1 (800) 832-0732
Fax ++1 (248) 204-0864
E-mail [email protected]
URL www.corrsys-datron.com
China Headquarters:
CORRSYS-DATRON Sensorsysteme GmbH, China Office
Room 708, JinTianDi International Mansion,
No. 998 RenMin Road, Shanghai (200021), P.R.China
Tel.: ++86-21-63114144
Fax: ++86-21-63114154
E-mail: [email protected]
URL: www.corrsys-datron.com.cn
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 5
Safety Instructions
Please read carefully before operating the equipment.
CORRSYS-DATRON is not responsible for damage that may occur when this system is used in
any way other than that for which it is intended.
To assure safe and proper operation, all supplied equipment, components and/or accessories must be
carefully transported and stored, as well as professionally installed and operated. Careful maintenance
and usage in full accordance with operating instructions is imperative.
CORRSYS-DATRON equipment should be installed and operated only by qualified persons who are
familiar with devices of this type.
Local regulations may not permit the operation of motor vehicles on public highways while the
equipment is mounted on the exterior of the vehicle.
•Use the equipment only for intended applications. Improper application is not advised.
•Do not modify or change the equipment or its accessories in any way.
•Improper use or mounting of the equipment may affect the safety of the vehicle and/or occupants.
•The equipment must not be mounted and/or operated in any way that may compromise vehicle or
and/or occupant safety.
•Equipment must be mounted firmly and securely.
•Use only original equipment, components and/or accessories included in the scope of delivery.
•Do not mount equipment, components and/or accessories near heat sources (e.g. exhaust).
•Do not use defective or damaged equipment, components and/or accessories.
•Always note correct pin assignments and operating voltages when connecting equipment to
power supplies, data acquisition/evaluation systems, and/or any other system or component.
Equipment may be damaged if not properly connected and/or operated.
•For additional information, please call the CORRSYS-DATRON Hotline: ++49 (6441) 9282-82
Danger
Warning
•Sensor head can become very hot and may cause injury if power has been applied to the
sensor for extended periods of time. This is especially true if the sensor is used in hot
environmental conditions.
•Invisible radiation from light emitting diodes!
Do not observe with optical instruments.
Laser class 1 M in compliance with DIN EN 60825 - 1:2001
•The sensor and/or sensor components may be damaged if power is applied for extended
periods, especially in hot environmental conditions.
•Disconnect power from the sensor if the vehicle is stationary for extended periods.
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 6
Non-Contact Optical
Sensor
for
slip-free measurement of
longitudinal and transversal
dynamics
CORREVIT®SFII P
1. Overview
The new CORREVIT®SFII P Optical Sensor represents yet another a major step
forward in the advancement of optical measurement technology. Based on the
Formula-1 proven CORREVIT®SF Sensor, the SFII P Sensor is even smaller and
lighter than the compact SF model.
The further miniaturization of the exceptionally lightweight SFII P Sensor enables
mounting positions -such as under the vehicle - that were virtually unimaginable until
now. Long-life, vibration-resistant infrared LED illumination and digital filters with
advanced DSP technology provide improved performance, even under harsh environ-
mental conditions.
The first CORREVIT®Sensor to be equipped with 4 analog and 4 digital outputs, the
SFII P Sensor permits simultaneous measurement of longitudinal, transversal, and
magnitude speed, as well as the angle b.
Complemented with high-speed data transfer via CAN Bus, RS232, and USB, the
SFII P Sensor can be used with any current data acquisition systems.
A protective optical-glass lens prevents damage to the optics and the illumination
source. The lens is optimized to the wavelength of the LED illumination source, and can
be easily replaced without use of special tools.
Article no.:
SFII P Sensor 14391
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 7
Application
Features
•Small and lightweight - just 250 g
•Developed for measurement of tire slip angle
•Adjustable filter time (unfiltered, 8 ... 512 ms)
•Speed linearity - desired distance < ± 0.5 %
Distance linearity < ± 0.2 %
•Improved features by application of advanced DSP technology
•Mounting angle correction via software
•Direct connection to PC or other evalutation systems
•Illumination by long-life, high-power infrared LEDs
•Signal outputs: analog -10 ... 10 V
digital 0-1000 pulses/m
CAN Bus V2.0B
USB 2.0 or RS232
•Negligible service and maintenance requirements as a result of durable technology
•Tested and used under extreme environmental conditions
The compact, lightweight CORRSYS-DATRON SFII P Sensor is designed for use in dynamic vehicle
testing applications that require highly accurate measurement of the following variables:
•Distance
•Speed
•Angle
•Longitudinal speed
•Transversal speed
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 8
2. Extent of Delivery
Standard Extent of Delivery
1. (1) SFII P sensor head (Art.no. 14391)
2. (1) SF electronic box (Art.no. 14269)
3. (1) Sensor cable 5m MIL #K048-1D2-10-5m (Art.no. 13795)
4. (1) Power cable MIL5P m bunch plug #K 042-24N-10-2 (Art.no. 13854)
5. (1) RS-232 output cable, 2m, MIL #K 042-160-22-2 (Art.no. 13682)
6. (1) CAN output cable, 2m #K 042-160-23-2 (Art.no. 13683)
7. (1) Signal cable analog-digital 2m 13P MIL - 8x BNC #K 053-8D2-10-2
(Art.no. 14273)
8. (1) Cooling element left + right black #M 042-10-01-0- (Art.no. 14044)
9. (1) USB-Adapter (USB 2.0 to RS232 converter- Art.no. 13971)
Without illustration:
(1) CeCalWin Software (Art.no. 11343)
(1) Transport case black, T2 (Art.no. 11228)
(1) Inlet for transport case ( Art.no. 11227)
(1) Inlet for ZIP-drive (Art.No. 11131)
4.
5.
6.
7.
8.
9.
2. 1.
3.
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 9
3. Technical Data
Performance Specifications
Speed range: 0.3 ... 250 kph
Distance resolution: 2.08 mm
Uncertainty of measurement*: < ± 0.2%
Speed linearity - desired distance < ± 0.5 %
Distance linearity: < ± 0.2 %
Working distance and range: 180 +/-50 mm
Angle range: ± 40°
Angle resolution: ± 0.1°
Outputs
CAN Bus: CAN V2.0B - switchable terminating
resistor (Intel or Motorola Format)
Analog Outputs: VI, VL, Vq, β±10V each
(16 bit resolution)
Digitale Outputs: IVI, VL, Vq, β
USB: USB 2.0 or RS232
System Specifications
Power supply: 10,5 V ... 24 V; 28 W (12 VDC)
Temperature range: operation: -25 ... 50°C
storage: -40 ... 85°C
rel. humidity: 5 ... 80%, non condensing
System Protection of the sensor head: IP 67
Illumination: IR-LEDs, 850 nm, laser class 1M
Dimensions of the sensor head (l x w x h): 100 x 33 x 45 mm (without plug)
Weight sensor head: 250 g
Dimensions of the electronics (L x H x B): 130 x 86 x 33 mm
Weight of the electronics: approx. 490 g
Schock: 50 g half-sine, 6 ms
Vibration: 10 g, 10 ... 150 Hz
USB interface for connection to the PC, automatic sensor identification, function control.
*with calibration on the test surface
INVISIBLE RADIATION FROM LIGHT EMITTING DIODES!
DO NOT OBSERVE WITH OPTICAL INSTRUMENTS!
LASER CLASS 1M
IN COMPLIANCE WITH
DIN EN 60825-1:2001
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 10
3.2.2 Pin Assignment: Power Connector
Cable: 5-pol. #K042-24N-10-2m
MIL connector
Power Connector
Pin 1: +12V
Pin 2: +12V
Pin 3: Case
Pin 4: 0V
Pin 5: 0V
3.2 Pin Assignments
3.2.1 Pin Assignment: PC(RS 232) / CAN Outputs
Cable: 5-pin MIL to 9-pin D-SUB - RS232: #K042-160-22-2m / CAN: #K042-160-23-2m
RS-232-/CAN
Pin 1: RXD
Pin 2: TXD
Pin 3: DGND
Pin 4: CAN Low
Pin 5: CAN High
3.2.3 Pin Assignment: Analog- / Digital Outputs
Cable: #K053-82D-10-2m
Analog/Digital
Pin 1: ANA_OUT3
Pin 2: ANA_OUT4
Pin 3: AGND
Pin 4: DIG_OUT1
Pin 5: DIG_OUT2
Pin 6: DIG_OUT3
Pin 7: DIG_OUT4
Pin 8: AGND
Pin 9: ANA_OUT1
Pin 10: ANA_OUT2
Pin 11: AGND
Pin 12: DGND
Pin 13: DGND
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 11
3.3 Internal Signal Filtering
Signals may be smoothed using a moving average filter, which can be set to different time values.
Note that signal detail and dynamics will decrease as the signal becomes decreasingly smooth.
Filter Values for Speed
•8 ms
•16 ms
•32 ms
•64 ms
•128 ms (default setting)
•256 ms
•512 ms
increased signal detail and dynamics (as well as noise)
minimum signal delay
smoothest signal
maximum signal delay
Use CeCalWin Software to change filter settings.
3.4 Typical Data Plots
Brake Test
Filter Value
Speed/Acceleration
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 12
4. Set-up and Connection
The mounting distance from the
lower surface of the sensor body
to the road surface must be
180 ±50 mm.
180 mm
Road Surface
180 mm 180 mm
Longitudinal mounting only!
4.1 Mounting Options
Note:
In wet or snowy conditions, do not mount sensors directly behind the rear wheels.
This will help to prevent measurement anomalies that can be caused by spray
and/or blowing snow.
i
4.2 Sensor Mounting Jig
Objective
Lens
Protection glass
Mounting holes
LED Illumination
MTT00-10-35-PN
13 pin MIL connector
Sensor
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 13
4.3 Mounting Instructions
4.3.1 Suction Mounting Unit
1. Pre-assemble the CORRSYS-DATRON Suction Mounting
Unit (Art.No. 13990) as shown in Fig. 1.1.
2. Position the Suction Mounting Unit parallel to the vehicle
body (e.g. at the driver-side door), as shown in Fig. 2.1.
To assure proper function of the suction holders, the
mounting area must be free of grease, oil, dust and other
contaminants. For this reason it its necessary to clean the
painted surface in the mounting area before attaching the
suction holders. Do not use cleaning products that leave
residue of any kind on the surface.
3. Adjust the Mounting Unit perpendicular to the ground:
- Loosen the black levers at each suction holder so that
the suction holder brackets slide freely.
- Position the Mounting Unit so that is perpendicular to
the ground (vertical).
- Re-tighten both levers.
bracket
black lever
Fig. 1.1
Fig. 2.1
Fig. 3.1a
Fig. 3.1b
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 14
4. When the Mounting Unit is correctly positioned, press the
suction holders - one after the other - firmly against the
vehicle body to flatten the rubber pads against the body
surface. Then, fold the grey levers toward suction
holders to produce a vacuum, which will secure the
suction holders to the vehicle body.
When producing the vacuum, you will feel a distinct
resistance. If the suction created is not sufficient to
secure the holder(s), check to be certain that the
mounting surface is clean.
Always inspect the Suction Mounting Unit before
use. Special attention should be paid to the
condition of the rubber suction pads, which must
be absolutely intact. Replace damaged pads
immediately.
Use of a safety line is recommended.
5. Measure the sensor mounting height to be sure that the
sensor is within the specified vertical operating range of
180 +/-50 mm (see pages 9 and 12). This distance is
measured from the bottom of the sensor body to the road
or track surface. NOTE: The bottom of the heat sink/
sensor mounting plate will be flush with the bottom surface
of the sensor, so the mounting height can be measured
from the bottom surface of the heat sink/sensor mounting
plate.
If the sensor is not within the specified vertical operating
range, loosen the black levers at each suction holder and
slide the vertical mounting rod up or down, as required,
then re-tighten both levers.
If additional adjustment is required, fold the grey levers on
the suction holders down to release suction, then remove
the suction holders from the vehicle body by pulling the
black tab on each holder. Reposition the Mounting Unit so
that the mounting height is correct, then proceed with the
mounting procedure described in Step 3 (page 13).
6. Insert the included sensor mounting screws through the
mounting holes in the sensor, then into the mounting holes
in the heat sink/mounting plate and tighten the screws.
Fig. 4.1
Fig. 5.1
Fig. 6.1
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 15
7. Connect the signal cable to the sensor.
8. Route the signal cable trough the side window, into the
interior of the vehicle and connect it to data acquisition,
then secure the cable to the vertical mounting rod with
with a cable tie.
4.3.2 Magnetic Plate Mounting Unit
1. Pre-assemble the CORRSYS-DATRON Magnetic Plate
Mounting Unit (Art.No. 14091) as shown in Fig. 1.2.
Fig. 7.1b
Fig. 7.1ba
Fig. 8.1
Fig. 1.2
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08
Fig. 2.2
Fig. 3.2a
Abb. 3.2b
Fig. 4.2
16
2. Position the Magnetic Mounting Unit parallel to the vehicle
body (e.g. at the driver-side door), as shown in Fig. 2.2.
The magnetic plates will automatically hold fast to the
(metal) vehicle door/body panel.
3. Adjust the Mounting Unit perpendicular to the ground:
- Loosen the black levers at each magnetic holder so that
the magnetic holder brackets slide freely.
- Position the Mounting Unit so that is perpendicular to
the ground (vertical).
- Re-tighten both levers.
Use of a safety line is recommended.
4. Measure the sensor mounting height to be sure that the
sensor is within the specified vertical operating range of
180 +/-50 mm (see pages 9 and 12). This distance is
measured from the bottom of the sensor body to the road
or track surface. NOTE: The bottom of the heat sink/
sensor mounting plate will be flush with the bottom surface
of the sensor, so the mounting height can be measured
from the bottom surface of the heat sink/sensor mounting
plate.
If the sensor is not within the specified vertical operating
range, loosen the black levers at each magnetic holder
and slide the vertical mounting rod up or down, as
required, then re-tighten both levers.
If additional adjustment is required, release the magnetic
plates by pulling them away from the vehicle with the black
handles. Reposition the Mounting Unit so that the
mounting height is correct, then proceed with the
mounting procedure described above.
bracket
black lever
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 17
6. Insert the included sensor mounting screws through the
mounting holes in the sensor, then into the mounting holes
in the heat sink/mounting plate and tighten the screws.
7. Connect the signal cable to the sensor.
8. Route the signal cable trough the side window, into the
interior of the vehicle and connect it to data acquisition,
then secure the cable to the vertical mounting rod with
with a cable tie.
Abb. 5.2
Abb. 6.2b
Abb. 6.2a
Abb. 7.2
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 18
1. Remove hubcap or any covering over wheel nuts and
clean dirt/debris from wheel nuts.
2. Place collets on wheel nuts.
3. Position the mounting disc and attach it loosely to collets
with mounting bolts and washers.
NOTE: The mounting disc has 3 sets of slots for proper
alignment with 3-, 4-, and 5-lug configurations. Each set of
slots is marked 3x, 4x or 5x, corresponding the number of
lugs.
4.3.3 Wheel Mount
The CORRSYS-DATRON Wheel Mount System for CORREVIT®SF Sensors is designed to enable
precision tire-slip measurement.
The following mounting units are recommended.
Sensor Wheel Mounting Unit (Art. No. 14178) consisting of:
(1) Torsion rod with protective boot
(1) Suction holder
(1) Torsion rod mounting clamp
(1) Mounting disk with mounting hub
(6) Centering stars (1 each for 3-, 4- and 5-lug hubs (Art. No 11295, 11293, 11294)
Mounting collets for various lug nut sizes:
Standard dimensions:
17 mm, #10070
19 mm, #10071
21 mm, #10072
further on request
Fig. 1.3
Fig. 2.3
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 19
6. Using an allen wrench, loosen the set-screw at the
bottom of the torsion rod retainer clamp and place the
retainer clamp onto the mounting hub.
NOTE: The set screw should not be tightened until the
torsion rod is properly positioned, see Step 11. (page 19).
mounting hub
retainer clamp set screw
safety line
protective boots
torsion rod
7. Slip the protective boots over the lower and upper
sections of the torsion rod. Then, fit the upper section of
the torsion rod into the joiner at the top of the lower
section of the torsion rod. Check the safety line to be
sure it is secured to the torsion rod.
4.Place the centering star tightly against the
mounting disk and position the concave edges of
the centering star against the washers on the
mounting bolts, as shown. Then, turn the
centering star until it is tight against all of the
washers to ensure that the mounting disk is
properly centered on the wheel.
5. Continue to hold the centering star tightly against the
mounting washers and mounting disk, then tighten the
mounting bolts in a cross pattern, using an allen wrench.
A safety line should always
be used to avoid damage or
injury in the event that a
suction holder separates
from the vehicle body during
the test drive.
Fig. 3.3
Fig. 4.3
Fig. 5.3
Fig. 6.3
User Manual CORREVIT®SFII P Sensor
© 2008 CORRSYS-DATRON Sensorsysteme GmbH, Wetzlar, Germany D062-50-01-04E 02/08 20
10.If necessary, adjust the torsion rod so that it is parallel
to the vehicle, then tighten the nut that secures the
suction holder mounting to the torsion rod.
11.Tighten the retainer clamp set-screw with an allen
wrench.
8. To assure proper function of the suction holders, the
mounting area must be free of grease, oil, dust and other
contaminants. For this reason it its necessary to clean the
painted surface in the mounting area before attaching the
suction holders. Do not use cleaning products that leave
residue of any kind on the surface. Place the suction
holders firmly against the vehicle fender and latch the
suction holder lock handles (latched position is
approximately parallel to vehicle fender surface).
When producing the vacuum, you will feel a
distinct resistance
9. Tighten the set screws that secure the upper and lower
sections of the torsion rods together, using an allen
wrench.
Fig. 7.3
Fig. 8.3
Fig. 9.3
Fig. 10.3
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