Yetter 1310-010 Maximizer User Manual







2565-757 02/2012



Colchester, IL 62326-0358 Toll free: 800/447-5777

309/776-3222 (Fax) Website: E-mail:


You’ve just joined an exclusive but rapidly growing club.

For our part, we want to welcome you to the group and thank you for buying a Yetter product.

We hope your new Yetter products will help you achieve both goals-increase your productivity and increase your efficiency so that you may generate more profit.

This operator’s manual has been designed into four major sections: Foreword, Safety Precautions, Installation Instructions and Parts Breakdown.

This SAFETY ALERT SYMBOL indicates important safety messages in the manual. When you see this symbol, be alert to the possibility of

PERSONAL INJURY and carefully read the message that follows.

The word NOTE is used to convey information that is out of context with the manual text. It contains special information such as specifications, techniques and reference information of a supplementary nature.

The word IMPORTANT is used in the text when immediate damage will occur to the machine due to improper technique or operation. Important will

apply to the same information as specified by note only of an immediate and urgent nature.

It is the responsibility of the user to read the operator’s manual and comply with the safe and correct operating procedure and to lubricate and maintain the product according to the maintenance schedule in the operator’s manual.

The user is responsible for inspecting his machine and for having parts repaired or replaced when continued use of the product would cause damage or excessive wear to the other parts.

It is the user’s responsibility to deliver his machine to the Yetter dealer who sold him the product for service or replacement of defective parts, which are covered by the warranty policy.

If you are unable to understand or follow the instructions provided in this publication, consult your local Yetter dealer or contact:


309/776-4111 800/447-5777 309/776-3222 (FAX) Website: E-mail:


Yetter Manufacturing warrants all products manufactured and sold by it against defects in material. This warranty being expressly limited to replacement at the factory of such parts or products as shall appear to be defective after inspection. This warranty does not obligate the Company to bear cost of labor in replacement of parts. It is the policy of the Company to make improvements without incurring obligations to add them to any unit already sold. No warranty is made or authorized to be made, other than herein set forth. This warranty is in effect for one year after purchase.

Dealer ___________________________________________________

Yetter Manufacturing warrants its own products only and cannot be responsible for damages to equipment on which mounted.





It is your responsibility as an owner, operator, or supervisor to know and instruct everyone using this machine at the time of initial assignment and at least annually thereafter, of the proper operation, precautions, and work hazards which exist in the operation of the machine in accordance with OSHA regulations.

Safety Is No Accident

The following safety instructions, combined with common sense, will save your equipment from needless damage and the operator from unnecessary exposure to personal hazard. Pay special attention to the caution notes in the text. Review this manual at least once each year with new and/or experienced operators.

1.Read and understand the operator’s manual before operating this machine. Failure to do so is considered a misuse of the equipment.

2.Make sure equipment is secure before operating.

3.Always keep children away from equipment when operating.

4.Make sure everyone that is not directly involved with the operation is out of the work area before beginning the operation.

5.Make sure all safety devices, shields, and guards are in place and are functional before beginning the operation.

6.Shut off power to adjust, service, or clean.

7.Keep hands, feet, and clothing away from moving parts. It is a good idea to remove all jewelry before starting the operation.

8.Visually inspect the machine periodically during operation for signs of excessive vibration, loose fasteners, and unusual noises.



1.Read and understand instruction manual before operating.

2.Keep all safety shields and devices in place.

3.Make certain everyone is clear before operating machine.

4.Keep hands, feet, and clothing away from moving parts.

5.Shut off power to adjust, service, or clean.

6.Make sure machine is secured before operating.

7.When transporting, shut fuel lever off.

8.DO NOT operate machine when guards are removed.

Pre-Operating Check List:

1.Service the gas engine and gear reduction box.

2.Connect the wire harness.

3.Check all bearings for proper lubrication.

4.Check the tube for foreign material.

5.Check all belts for proper tension.

6.Tighten all setscrews.

7.Start unit and check tender belt alignment while unit is empty.


It is suggested that the unit be run every two to three days or more often if possible. This tends to keep the tender belt alive and stops any forming of the belt to the curvature of the tube while the unit is not in use.

NOTE: Belt may deteriorate if not in use and exposed to weather conditions for any prolonged period of time.

Operation Sequence

1.Check drive belt for proper tension.

2.Make sure tender belt is properly tensioned.

3.Allow unit to run empty for a few minutes to flex tender belt.

4.Check tender belt for proper alignment.

5.Before shutting power off, be certain drive belt and tender belt are empty of seed.


Temporary Storage

1.Relieve tension from all belts; both v-belt and tender belt.

2.Store all belt equipment in a dry place. If equipment cannot be stored out of the weather, cover engine and mechanical parts with waterproof material.


Prolonged Storage

1.Remove all belts and store in a cool, dark, dry place.

2.Wash tender belt thoroughly.

3.Wash tender tube both inside and out.

4.Lubricate all bearings.

5.Store in a dry shelter.



Preventative maintenance is the key to the long life of any mechanical device.

Careful and systematic inspection of the machine will result in maximum, trouble-free service.


To replace the belt, Remove the splice pin and hand rotate the head roller until belt has been removed. Install appropriate belt as outlined in assembly instructions.


After extended use, the tender belt may stretch to the point that there is not sufficient take-up in the head assembly to tighten it. Obtain additional take-up by cutting a 6” to 8” section from the belt. A new splice lacing may be ordered from your dealer.


Due to the characteristics of certain materials, residue sometimes collects between the tender belt and the tube. Check the unit periodically for any material build up in this area. If residue appears excessive, remove the tender belt and thoroughly wash the belt and tube. Allow belt and tube to dry before reinstalling the belt.


All bearings which are fitted with grease zerks should be lubricated at the conclusion of each operating day. Before greasing the bearings, make certain the zerks are free of dirt, otherwise this will be passed into the bearing race. If the unit will be out of service for period of time, purge the bearings.


A tender belt correctly installed and trained will run straight and true. The belt must run centered on all head rollers and tail roller throughout the entire belt length.

Incorrect installation and training can result in severe edge damage, material spillage, material leakage through the skirt rubber at the loading point, and excessive power demands. Material spillage is the usual reason for belt carcass ruptures and pulley covers gouging and stripping, while leakage at the skirt rubber results in excessive conveyor cover wear under the skirts.


All rotating parts-head roller and tail roller must be at a 90 degree angle to the direction of belt travel, must be level, and the midpoint of each centered on a line when properly aligned.

Alignment is checked by running a tight wire from the center of the head roller to the center of the tail roller.

Level all rotating parts. If a part is not level, the belt will run to the lower side.


A tender belt must not run out at the splice area. Run out will occur if the belt is not cut square or splice is not installed square.



Mounting bolts and hardware

All hardware used on the Maximizer is Grade 5 unless otherwise noted. Grade 5 cap screws are marked with three radial lines on the head. If hardware must be replaced, be sure to replace it with hardware of equal size, strength and thread type. Refer to the torque values chart when tightening hardware.

Important: Over tightening hardware can cause as much damage as when under tightening. Tightening hardware beyond the recommended range can reduce its shock load capacity.

The chart below is a guide for proper torque. Use it unless a specified torque is called out elsewhere in the manual.

Torque is the force you apply to the wrench handle or the cheater bar, times the length of the handle or bar.

Use a torque wrench whenever possible.

The following table shows torque in ft. lbs. for coarse thread hardware.



1.Prior to the start-up, check to see that belt is free from any objects that would bind or tear.

2.On starting for the first time, with no load on belt, apply power for a few seconds only to see that the tender belt is well centered in the tube and on the return.

3.It should be noted at this time that too much tension on the on the tender belt will make adjustment or training much more difficult, shorten the life of the belt, and waste power. The belt should be tensioned tight enough so the drive roller does not slip.

IMPORTANT Fuel valve: When engine is not in use leave the fuel valve in the OFF position to prevent fuel in the oil crankcase and or carburetor flooding. Shut off the fuel and run the motor completely out of fuel before transporting.


It is essential that the tender belt be properly trained at all times. For this reason, all rotating parts should always be at right angles to the tender belt.

Slight adjustment of roller shafts may be required to keep belts centered on them i.e., if the belt runs to one side of the roller – apply more tension to this side of the belt by advancing the roller shaft on this side.

1.One or more rotating parts not in alignment.

2.Belt tensions in some part of system (usually at tail section) are below minimum recommendation.

3.Belt not loaded centrally.

When a belt is initially started, it should be jogged around the system to determine if a major run out occurs which could damage belt and belt edges. If run out occurs at some point of the system, the reason is usually a roller out of alignment before the run out. Alignment should be rechecked before restarting.

After the belt can be safely run without damage, final training should begin with the head roller. The belt must enter the head roller in the center without movement from side to side. If the belt is not centered on the tail pulley, the return strand of the belt should be observed for any section that is not centered.

After the belt is trained empty, the belt should be trained with a load. The take-up adjustments are made to prevent belt slip and keep tensions at all points above minimums recommended when belt is operating with a load.

If slip occurs under, additional belt tension should be adjusting the take-up only enough to prevent slip from occurring under load, and when started with a load.


1.Load seed box onto frame and engage the lock down brackets. Ensure that the seed boxes are secure before transporting.

2.Start the engine

3.Open seed box gate.

4.Open hopper seed flow gate

5.Move the toggle switch to control the start and stop of the seed flow.





1.Close the seed box gate or hopper seed flow gate before the seeding implement is full, so that the Maximizer belts are empty of seed before transporting.

2.Run the conveyor until all the seed that is on the belts has been transferred.


1.Lower the tube.

2.Shut off fuel supply.

3.Run engine empty of fuel.

4.Make sure all the lights and reflectors that are required by local highway authorities are in place, are clean and can be seen clearly by all traffic.

5.Make sure the seed box gates are closed.

6.Make sure the seed boxes are securely seated and locked to the frame.

7.Lock conveyor in place.



1.Check engine oil level daily.

2.Change engine oil every 25 hours.

3.Check for oil leaks daily.

4.Grease bearings every 50 hours.

5.Check bearings annually.

6.Check belt tension and adjust as required. Belt tension should be just enough to drive the belt. Belt will require 10 hours of operation to break in. Some adjustment may be required at this time.

7.Belt and splice should be in good condition, check daily.


Route both ends around head and tail roller, slide belt forward and back through tube so ends of the belt meet at a convenient location.

Align and interlace belt and clipper lacings. Slip splice pin through clipper lacings to secure. NOTE: The clipper lacings are connected on a metal strip that needs to be broken to allow the belt to flex.

Tighten belt by turning adjustment nuts on head roller assembly in. Tighten evenly on each side until belt is tight.

To train belt, see belt training instructions in this manual.



This is a list of many of the possible encounter. If you have a problem Manufacturing Co. at 1-800-447-5777. model number of the machine.

problems, causes and solutions to problems that you may that is not covered, please contact your dealer or Yetter Before you call, please have your operator’s manual and the




Belt edge is frayed

Belt not aligned

Align and tension belt.



Make certain belt is not



Rubbing against anything

Tender belt will not turn

V-belt is loose

Tighten V-belt


Key sheared on pulley

Replace key

Engine will not start

Fuel shut off

Turn on fuel


Poor battery connection

Tighten cable connection


or dead battery

and charge battery

Electric switch will not

Poor connection.

Check connections





Broken wire

Test wire for continuity

Seed will not flow

Blockage exists

Remove blockage

Tender tube will not rise

Dead battery

Charge battery


Broken wire or switch

Test wire for continuity










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