WHEEL MONITOR Reverse-A-Matic RM70 User manual

Reverse-A-Matic™ RM70 Operation & Installation Manual
Reverse-a-Matic ™ Wheel Direction Sensor System 1 Preliminary Copy – Sept 12 2012, © 2012 Wheel Monitor Inc. 1-905-641-0024
Reverse-A-Matic™ RM70 Operator’s Manual
O
Op pe er ra at ti io on n o of f t th he e
R
Re ev ve er rs se e- -A A- -M Ma at ti ic c
™
™
The Reverse-A-Matic ™ System RM70 is a stan -
alone trailer mo ule esigne to automatically
control the steer axles. The Reverse-A-Matic ™
mo ule an sensor are to be installe on a trailer.
Features
•Senses trailer irection an spee .
•Spee Sensitive steer axle control.
•Requires NO MANUAL CONTROL from the cab.
•Activates after eight inches in reverse.
When traveling forward, it will
•Lock one self steer axle above 35 KPH for
straight operation
•Lock a secon self steer axle above 65 KPH for
straight operation
•Provi e an output when ever the truck is
stoppe .
Model RM70 OUTPUTS
The Reverse-A-Matic RM70 has six outputs & two
inputs. All of the features of the original RM50 are
incorporate into the RM70.
Function Colour In/Out
Bullets Connectors
12 Volt Input Blue power
Groun White groun
Stoppe warning Yellow Output
Lift Axle Control. Brown Output
65 KPH steer lock Green Output
35 KPH steer lock Black Output
Sensor Connector
Sensor Interface - Input
WeatherPac Connector
Not use A – Re Output
Not use B – Pink Output
Not use C – Grey Input
Not use D – Grey Input
Yellow Wire
The Yellow wire will turn ON whenever the truck is
Stoppe . It will come ON 2 secon s after the trucks
stops an turn OFF when the truck moves again.
Lift Axle
Brown Wire
The Brown wire will activate the lift axle when the
trailer is reversing. The lift axle will remain up until
the truck has move 100 feet forwar without
stopping. Once the lift axle is own it shall remain
isengage whenever travelling forwar . The lift axle
will lower when power is isconnecte from the
trailer or when the ignition is turne off.
Steer Axles Locking
The operation of Steer axles are to follow the roa
freely. Most steer axles have a locking pin that nee s
to be inserte to lock the axle an hol it for straight
operation. The RM70 provi es 12 volts to lock the
axle on the black an the green wires.
The Blac Wire is Power to Lock an will provi e
+12 volts out to the locking pin control solenoi to
insert the pin an lock the axle when the trailer is
traveling forwar faster than 35 KPH. It will be zero
volts when going forwar less than 30 KPH so that
the axle will be free to steer.
The trailer must be traveling faster than 35 KHM
for more than 100 feet to trigger the steer lock. It
will unlock imme iately when it slows own.
The Green Wire is Power to Lock an will provi e
+12 volts out to the locking pin control solenoi to
insert the pin an lock the axle when the trailer is
traveling forwar faster than 65 KPH. It will be zero
volts when going forwar less than 60 KPH so that
the axle will be free to steer.
The trailer must be traveling faster than 65 KHM
for more than 100 feet to trigger the steer lock. It
will unlock imme iately when it slows own.
5 Amp Fuse
The power input to the R-A-M Mo ule is fuse with an
automatic reset fuse. The fuse is rate for 5 amps of
continuous current. If trippe it will reset itself.
If the current is too large the unit will shut own.
Power Up
When the mo ule powers up it will check the spee
sensor an if stoppe , it will turn ON all of the outputs
as a test. If it is moving it will go irectly into operation.
It is important to ensure the power an groun
connections are not intermittent.
Diagnostic Tool (NEW)
Wheel Monitor has a Reverse-A-Matic Diagnostic an
Installation Tool now available. It can be use to test
the sensor, the mo ule an the entire system without
removing the unit from the trailer.
The iagnostic tool will test:
•Sensor Functions
•Sensor Wiring
•Sensor Alignment
•Mo ule Functions
•Mo ule Wiring
•Sensor Simulation
•Reverse testing
•Forwar testing
•Over 60 Km/H testing
•4-Way Flasher Simulation
Great for troubleshooting or installation. Contact Wheel
Monitor for more information.
Special Requirements ?
The Reverse-A-Matic system is a versatile mo ule an
can be a apte for in ivi ual nee s or concerns. This
can be one with external components or specially
configure mo ules. Contact Wheel Monitor for more
information.
Operation Chart of Reverse-A-Matic RM70 Outputs
RM70 Trailer Movement
Brown BLACK GREEN YELLOW
Power Up while Stoppe
ON ON ON ON
Power Up while Moving OFF OFF OFF
ON
Stoppe OFF OFF OFF
ON
Reverse (8 inches)
ON OFF OFF OFF
Stoppe after Reverse
ON OFF OFF ON
Forwar after 30 meters OFF OFF OFF OFF
Forwar Faster than 35 KPH OFF
ON OFF OFF
Forwar Faster then 65 KPH OFF
ON ON OFF
Power OFF or Disconnecte OFF OFF OFF OFF
Electrical Characteristics Units
Supply Voltage 12 Volts
Maximum Supply Voltage 16 Volts
Minimum Supply Voltage 9 Volts
Reverse Voltage -24 Volts
Output/Input Voltage 9 - 16 Volts
Supply Current, No Output 50 MA
Output Current 5 Amps
Fuse, Automatically Resets 5 Amps
Temperature Min Max
Sensor -40 ºC +150 ºC
Mo ule -40 ºC +85 ºC
Storage -40 ºC +85 ºC
Operation – Wheel Revolutions
Reverse Activation – ON 1/16 Rev
Steer Axle Locking See Chart
Beeper Turns OFF
After Stopping 5 Secon s
Environment Design J1455
Minimum Wheel Spee 0.3 Km/h
Maximum Wheel Spee 200 Km/h

Reverse-A-Matic™ RM70 Operation & Installation Manual
Reverse-a-Matic ™ Wheel Direction Sensor System 2 Preliminary Copy – Sept 12 2012, © 2012 Wheel Monitor Inc. 1-905-641-0024
WHEEL MONITOR INC. warrants that the Reverse-A-Matic™ wheel direction sensor system will be free from defects in material and workmanship for a period of one (1) year from
the date of purchase. WHEEL MONITOR INC. agrees to repair or replace, free of charge, any Reverse-A-Matic™ wheel direction sensor system which fails, through defect in
material or workmanship, within such period. If the Customer within the warranty period gives WHEEL MONITOR INC. written notice of any alleged defect, WHEEL MONITOR INC.
will, at its sole discretion, repair or replace the same free of charge. Any Reverse-A-Matic™ wheel direction sensor system repaired or replaced under the warranty shall have the
same warranty as new products, but does not extend the warranty of the original system. No warranty is made with respect to: (a) failure not reported to WHEEL MONITOR INC.
within the warranty period, (b) failures or damage due to misapplication, lack of proper maintenance, abuse, improper installation or abnormal conditions of temperature, moisture, dirt
or corrosive matter, etc., (c) failures due to operation, either intentional or otherwise in an improper manner, or (f) any product which has been altered by anyone other than an
authorized representative of WHEEL MONITOR INC.. WHEEL MONITOR INC. shall not be liable for any expenses incurred by the Customer in an attempt to correct any allegedly
defective Reverse-A-Matic™ wheel direction sensor system.
It is understood that WHEEL MONITOR INC. has no special knowledge of the Customer's operation or requirements and Customer agrees that the Reverse-A-Matic™ wheel
direction sensor system is purchased because of the independent determination by the Customer of its suitability for intended use.
EXCEPT AS SPECIFICALLY SET OUT ABOVE, THE WHEEL MONITOR INC. REVERSE-A-MATIC™ WHEEL DIRECTION SENSOR SYSTEM IS PROVIDED AS IS WITHOUT
WARRANTY OF ANY KIND. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, WHEEL MONITOR INC. FURTHER DISCLAIMS ALL WARRANTIES, INCLUDING
WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT. THE ENTIRE RISK
ARISING OUT OF THE USE OR PERFORMANCE OF THE REVERSE-A-MATIC™ WHEEL DIRECTION SENSOR SYSTEM REMAINS WITH CUSTOMER.
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL WHEEL MONITOR INC. OR ITS SUPPLIERS BE LIABLE FOR ANY CONSEQUENTIAL,
INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR OTHER DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS,
BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) ARISING OUT OF THIS AGREEMENT OR THE USE OF OR INABILITY TO
USE THE REVERSE-A-MATIC™ WHEEL DIRECTION SENSOR SYSTEM, EVEN IF WHEEL MONITOR INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
WHEEL MONITOR INC.’S TOTAL LIABILITY FOR ANY DIRECT DAMAGES SHALL NOT EXCEED FIVE DOLLARS ($5.00). BECAUSE SOME STATES/JURISDICTIONS DO
NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
NOTE: A warning label is supplied with the Reverse-A-Matic System, it is intended to identify that the unit is installed on the vehicle and must be affixed to the vehicle. Failure to affix
proper label may void this warranty. Failure to affix this warning label may represent a hazard to public safety. A copy of this operator’s manual must be delivered to the end user to
ensure proper familiarity with the operations of the Reverse-A-Matic system. MODIFICATIONS TO THE MODULE OR SENSOR OR INSTALLATION DAMAGE WILL VOID THIS
WARRANTY. DO NOT REMOVE ANY CONNECTORS, CUT OR STRIP ANY WIRES, PAINT OR MODIFY THE MODULE OR SENSOR IN ANY WAY.
™ Reverse-A-Matic and the Wheel Monitor logo are trademarks of Wheel Monitor Inc. © Copyright Wheel Monitor Inc. All Rights Reserved PATENTS PENDING
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

Reverse-A-Matic™ RM70 Operation & Installation Manual
Reverse-a-Matic ™ Wheel Direction Sensor System 3 Preliminary Copy – Sept 12 2012, © 2012 Wheel Monitor Inc. 1-905-641-0024
REVERSE-A-MATIC™ RM70
Mounting Instructions
The R-A-M unit an installation kit consists of a sensor
block, sensor, barrel clip, mounting screws, an a
control mo ule. The control mo ule must be
connecte to the sensor. The control mo ule wiring
must be connecte to the constant power blue wire,
the white groun wire.
Mounting of the R-A-M system may require wel ing
the sensor block to the axle, rilling holes for the
control unit, sol ering an running wires to the steer
axle solenoi an to a backup alarm an /or lights.
Sensor Mounting
1. The R-A-M irectional sensor must be mounte on
the left si e of the trailer ( river’s si e).
2. Do not mount the R-A-M sensor on a lift axle.
3. The R-A-M sensor shoul be mounte on one of the
two tan em axles. The axle must have an ABS
brake exciter ring (forwar axle preferre ). The
block fits 7.05” or 7.64” Diameter rings.
4. Disconnect the 7 pin plug (J-560 Connector) from
the tractor. Remove the tires an brake rum from
the hub following proper safety proce ures an
wear safety glasses.
5. Select a spot on the axle to wel the sensor block
near the exciter ring so there is sufficient room to
mount the sensor into the block from behin .
6. Locate the sensor block near the ABS exciter ring.
It shoul be at least 45 egrees away from an ABS
sensor if present on that axle.
7. The sensor hole must be in line with the center of
the exciter ring teeth. The block will fit ifferent
heights, if it is too high or too low then turn the
block over an recheck the alignment.
8. The block must be parallel to the ring an
approximately 0.125 inches away. Insert a fiber
spacer between the block an the ring for the
correct spacing uring wel ing.
9. Clamp the block in place for wel ing. NOTE: The
barrel clip an sensor shoul not be in the block
when wel ing.
10. NOTE: Do not connect the ground terminal of the
welder to the hub, this may cause the welding
current to pass through the wheel bearing and
damage it. Connect the ground terminal to the axle
near the work. (Take special care not to splatter
weld or touch the ABS exciter ring with the welder.
Use a weld blanket or suitable cover shield.)
11. Wel the sensor block to the axle housing. Make
sure it is parallel to the exciter ring.
12. The Block must be protecte from corrosion. Apply
some anti-seize compoun insi e the sensor
mounting hole.
13. Gently push the barrel clip into the block from the
rear until the tabs touch the block. The barrel clip
must be installe with the tabs on the inboar si e
of the sensor block.
14. Gently push the sensor into the sensor clip from
the rear. The tab on the sensor must be
pointing away from the center of the axle.
15. Push sensor bo y forwar towar the ABS exciter
ring. The gap between the teeth on the ring an
sensors shoul not excee 0.016 inches (.41mm)
when finishe .
16. Tie wrap the sensor cable safely to the axle, avoi
interference with the operation of the brakes an
ensure the cable is not straine . Run the cable
along the axle an Tie wrap the sensor cables to
the air brake lines every 25 to 30 cm (12 inches).
Module Mounting
17. Install the R-A-M mo ule on the insi e of the lower
sli er frame rail or suitable location on the sli er
box. Drill two holes 5/32 iameter an use the
self-tapping screws inclu e or use appropriate
mounting har ware.
18. Connect the sensor to the control mo ule. Make
sure the connectors fit together properly. The
connectors must not be straine or bent.
19. Run wires from the blue wire an white wire of the
trailer’s main harness to the R-A-M .
20. A dropout wiring harness is available from Wheel
Monitor for connecting the Blue and White wires to
the trailer’s wiring harness. It has weatherpack
connectors so it can be inserted into the main
harness. It is easy to install and will provide bullet
connectors for the R-A-M module and ground.
PN: WM-DWH-2001 for 1 foot long.
PN: WM-DWH-2012 for 12 foot long.
21. Run wires from a backup alarm an /or an axle
control solenoi to the R-A-M mo ule.
22. Run all wires along the airline supply (line ca ie)
to the mo ule.
23. Connect the blue wire to the 12 volt battery supply
wire. Connect the white wire to the groun wire.
(Do not use the chassis for groun . All wires
shoul joine to the main groun wire)
24. Connect the yellow wire to a backup alarm an /or
backup lights.
25. Connect the brown wire to the axle control
solenoi .
26. Connect the BLACK wire to the steer axle pinlock
control solenoi .
27. Connect the GREEN wire to the steer axle pinlock
control solenoi .
28. Note: All connections must be watertight. Wires
not use nee to be shrink wrappe or tape up.
29.The WARNING LABEL included in the it
must be applied to the trailer. This will warn
the operator of the unit an 4-way activation.
Operational Test of R-A-M ™ System
1. Connect the 7 pin plug (J-560 Connector) to the
tractor. Use D.C. power only. Battery chargers
do not supply proper D.C. Power.
2. ALL R-A-M outputs will come on for one secon
when the unit is powere up. This is an operational
test to confirm the unit is working.
3. Rotate the wheel hub more than one-sixteenth of a
revolution in reverse (clockwise) an observe that
the Beeper (YELLOW), Lift axle (BROWN)
4. To test the spee control functions requires the
wheel be spinning at more than 65 KPH for nine
revolutions. This can be one using the RAM
Diagnostic tool. This test shoul be performe with
a test light while riving on the roa .
5. Document your results. Install the rum an tires.
We recommen that a light be installe on the si e of
the trailer as an axle status in icator to the river. A
si e marker lamp may be connecte to the R-A-M
output alrea y connecte to the axle control solenoi .
The other si e of the marker lamp shoul be
connecte to groun wire.
Quic Chec
If all the outputs come on for one secon when the
trailer was powere up, then the R-A-M mo ule is
working. Check the sensor alignment. If not check the
power to the unit
Chec Electrical Connections
1. Check that all connections are soun an are ma e
to the correct locations. Ensure the sensor cable
connector is pushe all the way into its mating
connector.
2. Check the input power. Measure the voltage from
blue to white coming from the trailer, It shoul be
aroun 9 to 16 volts D.C.
3. Measure with the meter set to AC, it shoul be very
low. If the trailer is connecte to a battery
charger, there MUST be a goo battery connecte
or the unit will not function correctly.
4. ALL R-A-M outputs will come on for one secon
when the unit is powere up. This is an operational
test to confirm the unit is functioning. If they are
coming on ran omly, then the power to the unit
may be intermittent.
5. If one of the backup alarm or the lift axle/steer axle
control is not functioning, then the wiring may not
be correct. Disconnect the output control bullet
an measure the voltage while the unit is re-
teste . The output shoul be 9 to 16 volts D.C. If
it is correct, then the wiring or connections are
incorrect. If the wires are shorte to groun , it will
cause the Reverse-A-Matic’s internal fuse to trip.
Also insure that the backup alarm, lights an
lift/steer axle are functioning properly.
6. If the lift axle/steer axle control is not functioning,
check the air supply to the lift axle an /or to the
pinlock.
Chec Sensor Alignment
7. The sensor may nee to be re-aligne . Check to
make sure the sensor is centere on the ABS
exciter ring. If it is too high or too low then the
sensor will not be able to rea the teeth on the
ring.
8. Sensors can be tightene in the clip by removing
an spray painting the outsi e.
9. Check the Gap between the sensor an the exciter
ring, it shoul be less than 1/32 of an inch
(0.7mm).
10. If the wheel or the bearings have excessive wheel
play, then the sensor may not be able to rea the
teeth on the ABS exciter ring. If so, an inspection
of the wheel bearing shoul be performe .
11. The sensor tab shoul be pointing away from the
center of the axle. If it is not, then rotate it an
check operation of the unit again.
12. If the unit is still not functioning then rotate the
sensor 15 egrees counter clockwise an check
operation of the unit again.
13. If the unit is still not functioning then rotate the
sensor back. Rotate 15 egrees clockwise an
check operation of the unit again. Repeat with 30
egrees of rotation if require .
14. If after following this installation an trouble
shooting gui e, an the unit is still not functioning
properly, please call Wheel Monitor at 1-(905)-
641-0024. Ask for service an we will be please
to assist you further.
Servicing Maintenance
A visual examination of the sensor, the sensor
mounting, all electrical connections an the control
mo ule shoul be performe on the Reverse-A-Matic ™
system on a regular basis. An operational test of the
unit shoul be performe an ocumente every three
months.