How to Use Lure Coursing Equipment

The following directions for proper use of a lure machine and other coursing equipment may seem rather basic to some, but they are written for the individual who has never operated lure coursing equipment.

LURE MACHINE

The lure machine is comprised of a lure stand, a 12 volt Ford starter motor, a solenoid, two battery cables, a volt meter, a cable and grounding strip connecting the motor to the solenoid, and a switch to start and stop the machine. The lure stand is constructed from wood or metal and is used to mount the above components.

The starter motor is a 12 volt motor used in a 1961 Ford truck with a 262 cubic inch, 6 cylinder engine and a standard transmission. This starter motor can be be purchased at a N.A.P.A. auto parts store, part #44-9609 (good in most parts of the USA) or part #34-1055 (some times used on the West Coast). This motor is also designated by a Lester # 3110 or 3115.

The solenoid is generally designated as a “Ford four posted solenoid” and is mounted at the top right hand corner of the lure stand. There are two styles of this solenoid as pictured below. One is designated as the “old style” and as you can see the other is called the “new style”. The new style seems to be better by design and, to date, has performed more reliably for me than the old style solenoid.

The battery cables are approximately 16 inches long and are connected as follows. The grounding cable (black) is connected to the 3/8” left lower mounting bolt between the lure stand and the motor. This cable should be connected to the negative (-) terminal of the battery when operating the lure machine. The other battery cable (red) is connected to the 5/16” stud of the solenoid shown as the “C” terminal above. This cable should be connected to the positive (+) battery terminal when operating the lure machine. NOTE: The lure machine will not operate if the battery cables are connected to the battery in reverse of the above instructions.

A voltmeter is provided with each Injoy lure machine. The voltmeter allows you to monitor the condition (remaining voltage) of the battery connected to the lure machine. When the voltage drops below 11 volts (with the motor not running), the battery should be charged. NOTE: Continuing to operating a lure machine with less than 11 volts will cause the motor to heat up quickly and could cause the motor to burn out.

The plus (+) terminal (red wire) of the voltmeter is connected to the same terminal on the solenoid as the plus (+) battery cable mentioned above (terminal “C”). The negative (-) terminal (black wire) is connected to any ground, usually a mounting bolt which holds the solenoid in place on the lure stand.

The switch cord is plugged into the receptacle which is connected to the solenoid in the following manner. One wire extending from the receptacle is connected to the same 5/16” terminal on the solenoid as the plus (+) battery cable mentioned above (terminal “C”). The other wire is connected to the small terminal shown as letter “B” in the solenoid drawing on page 1. It does not matter which wire is connected to which terminal.

If you purchased the Injoy lure stand with all electrics, you need only to purchase a starter motor to complete the lure machine. It’s a good idea to take the lure stand with you when purchasing the Ford starter motor. By doing this you can be sure that the motor will mount on the bolts on the lure stand. If the starter motor fits on the bolts and it has approximately a 5-3/4” shaft, you have the right motor.

To mount the motor to the lure stand you need to remove the three nuts and leave everything else on the bolts as shipped. Before mounting the motor, you should remove any paint from around the three mounting holes on the face of the motor. You can use sandpaper or a knife to scrape away the paint. NOTE: If this step is not performed, you will not get a good ground (-) connection. Without a good ground, the motor will not run efficiently and possibly may overheat and burn out the motor.

You can now slip the motor onto the three bolts and install and tighten the nuts. Then attach the short wire connected to terminal “A” of the solenoid to the 5/16” stud located at the rear top of the motor and tighten both nuts on the solenoid and the motor. CAUTION: These studs are copper so be careful not to over tighten the nuts and strip the threads on the studs.

Now that the lure machine is assembled, you should try installing both the continuous loop and the take up wheels to see that they easily slip onto the motor shaft. It is not unusual for the end of the shaft, where the 1/4” hole is located, to be out of round and have some burrs around the hole. If the wheels will not slip onto the shaft freely, you will need to take a file and smooth around the end of the shaft until both wheels slip on and off freely; a job that is tedious, but necessary. Just take your time and try the wheels frequently so as to remove just the right amount of metal for the wheels to slide onto the shaft.

The following requirement is necessary ONLY if you purchased your motor from a supplier other than Injoy. The final step in preparing your lure machine for use is to file a flat spot on the shaft about 3” from the hole end. The flat spot should be about 3/8” square and approximately 3/32” deep. This is necessary for proper installation of the continuous loop wheel or sheave. (All Injoy motors are supplied with a flat spot already milled on the motor shaft.) When installing the continuous loop wheel or sheave, be sure the end of the bolt in the hub of the wheel is tightened down onto the flat spot. CAUTION: If you just tighten the bolt down onto the shaft, it will cause a burr on the shaft and you may not be able to remove the wheel from the shaft.

To operate, the lure machine needs to be connected directly to a 12 volt battery. Any car battery will do but your best buy, when considering useable life, is a Marine/RV battery. I have always used Sears Die Hard but any good battery will be acceptable. The battery cable attached to the solenoid (red) MUST ALWAYS be connected to the positive (+) battery terminal. The other cable (black) is attached to the negative (-) terminal of the battery.

If you plan to run many courses at any one outing, you will probably want to connect the lure machine battery to a vehicle battery and let the vehicle idle while you are running the lure machine. This will keep the battery(s) charged and you should be able to run courses for several hours. To accomplish this, you will need battery jumper cables with a minimum of #4 copper wires and no longer than are absolutely necessary to connect the two batteries. To connect the two batteries, simply connect the positive (+) terminal of one battery to the positive (+) terminal of the other battery and repeat this operation for the negative (-) terminals of each battery.

An alternate method of charging the battery(s) while in use, is to connect a floor style battery charger with a minimum 40 Amp charging cycle to the battery(s). The charger can be connected to a 120 volt power supply (outlet) or to a portable generator.

SETTING UP EQUIPMENT TO COURSE

There are several ways to go about setting up a course. Generally, you will be pulling one end of the string around the course as you locate and install the pulleys out in a field. This is usually accomplished with the string being on the take up wheel which is installed on the lure machine. If the string is new and in the bulk spool configuration, you can have a person hold the spool on a dowel or broom handle while you install the pulleys.

The corner pulleys should be installed by opening the hinge and driving 2 or 3 spikes into the ground through the holes in the hinge. The pulley is then closed over the hinge toward the inside of the corner. It is a good idea to pound a slight indentation into the ground with a hammer where the hinge is to be placed. This will cause the pulley to be tilted back away from the corner (Figure 1, Example B). The pulley should also be oriented so that it equally divides the angle that the string will make when you proceed to the next pulley (Figure 2, Example A). If the corner pulley is oriented as shown in Example B, the force of the string will sometimes tilt and twist the pulley in such a way as to allow the lure to flip the string off the pulley as it goes around the pulley.

After you have set up the course and returned to the lure machine, you need to install the continuous loop sheave or S/S continuous loop wheel on the lure machine. If the take up wheel is installed on the lure machine, it must be removed prior to installing the continuous loop sheave or wheel.

The S/S continuous loop wheel has a hub with a 5/8” bore and is designed to be used with a Ford starter motor having a long shaft with a 1/4” hole in the end of the shaft. The wheel can be installed in one of two ways.

The first method allows the wheel to be mounted on the motor shaft near the lure stand. This method is currently preferred because it puts less stress on the motor bearings and provides a more secure mounting. In order to mount the S/S wheel in this manner, you will need to file a flat spot on the motor shaft. To accomplish this, remove the 1/4” bolt and nylock nut from the hub and back out the 5/16” threaded bolt so that the wheel will slip onto the shaft of the motor. Position the wheel near the lure stand leaving a 1/2” or so between the rim of the wheel and the lure stand. Mark the shaft of the motor at the end of the hub and remove the wheel. Now file a flat spot about 3/8” square and about 3/32” deep (below the surface of the motor shaft). When installing the wheel, be sure the end of the bolt in the hub of the wheel is tightened down onto the flat spot. CAUTION: If you just tighten the bolt down onto the shaft, it will cause a burr on the shaft and you may not be able to remove the wheel from the shaft.

The alternative and a commonly used method for installing this style wheel is to slide it onto the shaft and align the holes in the hub of the wheel with the hole in the end of the motor shaft. Using the 1/4” bolt and nylock nut provided with the wheel, insert the bolt through the holes in the hub and the hole in the end of the motor shaft. Attach the nylock nut to the 1/4” bolt and tighten the nut all the way down to the hub. DO NOT substitute a non-locking nut for the nylock nut. A non-locking nut could loosen under use and fly off the bolt causing injury to a bystander. Also, if you use this method for installing the S/S wheel, you should remove the 5/16” threaded bolt used in method one explained above.

Once you have installed the continuous loop wheel, you need to position the lure machine so that the string is in a straight line with the groove in the wheel and determine the amount of starting tension on the string before placing the string on the wheel. Again, there are several ways to accomplish this.

One way is to take the free end of the string and bring it together with the string coming off the spool or take up wheel (thus forming a “continuous loop”) and bring it back to the lure machine. Do not cut the string and tie the two ends together just yet. All you are attempting to do, at this point, is to gauge the amount of tension or force on the string. For the lure machine to be able to drive the string there must be some tension on the string. The amount of tension required varies with each course set up and the weather conditions. The continuous loop sheave requires from 15 to 25 lbs. of tension. The S/S continuous loop wheel usually requires from 8 to 12 lbs. of tension. You can measure the string tension using a fisherman’s spring scale that will weigh up to 25 lbs.

When you have determined that the tension is about right, you can cut the string coming off the spool or take up wheel at the point where you are holding the string. Join the two ends by tying a knot to form the continuous loop. Tie a couple of small loops (approx. 6” long) in the string, about 6 or 8 feet apart, to which you will attach the lures.

Now, before operating the lure machine, the base needs to be spiked to the ground with the 8”spikes provided using the holes in the base of the machine. All four holes in the back (away from the direction of the line) should be used and the two end holes in front.

After nailing the lure machine to the ground, place the string on the continuous loop wheel (Figure 3) and jog the switch to see if the continuous wheel drives the string. If the string slips when the wheel turns or the string doubles over on itself, there is not adequate tension on the line. To correct this condition you need to shorten the string in one of the following ways. The method most frequently used is to cut a length of string out of the loop which shortens the string and increases the tension. You can also move the machine back or move a pulley in such a way as to increase the length of the course which will have the same effect as shortening the string.

At this point you should observe the course you have just laid out to determine if any hold down pulleys are required. A hold down pulley should be used where the string is not resting on the ground due to variations in the terrain. It is very important for the safety of the hounds that the string not be allowed to travel more than an inch or two above the ground for any substantial distance. A substantial distance is defined as more than 3 or 4 feet. What you are trying to prevent is the opportunity for the hounds to pick up the string with their feet when they are running which could result in the dog becoming entangled in the string. To install a hold down pulley or use a box pulley as a hold down, you simply place the pulley over the string and hold it in place by driving 4 spikes through the screw eyes and/or hinge into the ground. It is a good idea to cross the spikes as shown in Figure 4.

OPERATING THE EQUIPMENT

To run the lure machine, you simply hold the button on the switch down to make the lure go and release the button to stop or slow down the lure. The process of jogging the switch is the normal way that a course is run.

The best method of pulsing or jogging the button on the switch is to push and release the button quickly. To run the lure fast, press and release the button quickly and frequently. To slow the machine down, press the button just as quickly but less frequently. There are times when you may need to press and hold the button down for one to three seconds. NOTE: Pressing and holding the button down for more than five seconds at a time is not recommended. Running the motor continuously for more than five seconds at a time causes excessive wear on the motor brushes, causes rapid heat buildup in the motor and most importantly, runs down the battery more quickly than the short varied pulse method of operation.

After running a few courses, it is not unusual for the string to start slipping or to double over on itself on the continuous loop wheel. This is due to the string stretching and the course redirecting the string into straight lines between the corner pulleys. (We all have a tendency to weave a little while setting up the course.) To correct this situation you will need to go through the same process mentioned above to increase the string tension...move a pulley or cut a 6 to 9 foot piece of string out of the loop.

The Ford starter motor is not designed to run continuously and has no provision for dissipating the heat that is generated when operating any motor. Therefore, you need to monitor the temperature of the motor periodically during any period of operation. To monitor the temperature of the motor, you can CAREFULLY place your hand on the motor casing or pour a little water onto the casing. Be EXTREMELY CAREFUL when touching the motor because it can be hot enough to burn the skin. If the motor is too hot to touch or water sizzles or evaporates quickly, you need to let the motor rest and cool down. To continue to operate the motor when it is overheated will do permanent damage to the motor.

You can speed the cooling process by attaching a fan to the motor housing. The rapid movement of air over the motor housing will greatly aid the dissipation of heat between courses and allow courses to be run with less down time for cooling.

A solenoid failure, though happening very infrequently, can be a particularly exciting and frantic situation if you are unprepared to deal with such an occurrence. What happens is that the contacts in the solenoid become pitted and burned due to normal operation and will weld together at some point. When this occurs, the lure machine continues to run even though you are not pressing the button. Usually, the lure machine can be stopped with a couple of sharp blows being administered to the top of the solenoid. If this action does not correct the situation, one of the battery cables needs to be disconnected from the battery. While all of this is going on, the safety of the hounds should be evaluated and, if necessary, the string should be cut to stop the course. The solenoid should be replaced with a new one after such an occurrence.

The addition of a safety switch to the lure machine will allow the machine to be disconnected from the battery instantly by opening the knife switch. This is a much quicker and safer method of stopping the lure machine when a solenoid decides to lockup during operation.

If you are experiencing the string breaking at the knots you have tied, the knot shown in Figure 5, called a Blood Knot, will solve the problem. This knot is most generally used by fly fishermen to construct the tapered leaders that they use to present their flies to the fish.         

To construct the Blood Knot, you need to extend or crossover the ends of the string about 6” or 8” as shown in Step #1. The two ends of the string are designated as “A” and “B” and the arrows indicate the direction of the string extending around the course. To complete Step #2, place your thumb and index finger in the center of the 6” or 8” overlap, using either your left or right hand. With your other hand, wrap the loose end around the string 3 or 4 times. Bring the end of the string back to the center loop and switch hands, holding the completed wrap in place. Wrap the second end in the opposite direction 3 or 4 times and insert the end of the string through the center loop in the opposite direction from the first wrap (Step #2, Figure 5).

To finish the knot, gently pull on all four pieces of the string at once, until the knot starts to form. When the ends, “A” and “B”, appear to remain in place, you can release them and complete the knot by pulling the string in the direction indicated by the arrows. The completed knot should look something like the one shown in Step #3. You can trim the ends, “A” and “B”, leaving at least a 1/4”.

PICKING UP AND GOING HOME

When you finish coursing for the day, you will want to pick up the equipment. The string should be removed from the continuous wheel. With the string still out on the course, go around the course and retrieve all of the pulleys. If you follow the string around the course, you will not leave any pulleys behind when you depart the area.

Leave one corner or hold down pulley in front of the machine where it is located until after you retrieve the string. This pulley will act as a guide and help prevent a mess when winding the string onto the take up wheel.

Remove the continuous wheel from the machine and install the take up wheel by using the 1/4” bolt and nylock nut in the same manner as the S/S continuous loop wheel described earlier. Cut the string about where you tied the knot to make the continuous loop. Leave at least one lure tied to the string so you can keep track of the string out on the course as you wind it onto the take up wheel. Tie the end of the string, which is still around the pulley mentioned above, to the take up wheel or to the end of the string on the take up wheel. Turning the take up wheel by hand, bring in enough string to take up any slack between the wheel and the pulley in front of the machine.

Take the switch in one hand and a spike in the other. Using the spike to guide the string back and forth on the take up wheel, start jogging the switch and begin bringing in the string. Take it SLOW AND EASY, especially in the beginning, because letting the motor take up the line at full RPM will create the biggest mess and tangle you have ever seen. Better to bring it in slowly than to rush and end up throwing the string away due to creating a gigantic bird nest. When you have completed retrieving the string, just leave the take up wheel on the lure machine and all will be ready to setup the next time out.

BASIC COURSE DESIGN

The following diagrams are given as a guide to locating the lure machine and pulleys for a continuous loop and a take up course plan. There are three basic possibilities when locating the lure machine for a continuous loop course; in line with the course, outside the loop and inside the loop. While these course plans are a simple box for illustrative purposes, there are many possible variations to any of these configurations and are limited only by the number of corner pulleys available for use. The last diagram shows a take up configuration with three corner pulleys located in front of the lure machine. The three pulleys are used to keep constant tension on the string and prevent a backlash from occurring. You may get away with using only two corner pulleys in front of the lure machine.

 

 

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Date Modified:  05/15/08