LEXION Combine Operations Product Training 2017 · 2017. 7. 11. · Dis-awning plates 1. Open + Pre...

LEXION Combine Operations

Product Training 2017

CLAAS of America Inc

Company: CLAAS of America Inc.

Address: 8401 South 132nd Street

Omaha, NE 68138

Phone: 402-861-1000

Fax: 402-861-1003

Website: www.claas.com

Images and content are intended to cover ALL features and options available on 2017 LEXION Combines. Content may vary on each

machine configuration. The conditions and configurations recommended in this presentation are intended to cover most, but not all,

situations from a theoretical viewpoint. For this reason, descriptions are intentionally kept generic. Keep in mind that this is NOT a “a

substitute for the owners manual, but only a supplement to provide recommendations and tips to help optimize performance on a LEXION

combine.

LEXION Model: 780 – 670

Build Year: 2017

Effective Date: 7/1/2016

Last Revision: 3/8/2017

Product Training: Combine Operations2 Spring 2017

http://www.claas.com/

CLAAS ACADEMY

23 4

5

6

7

8

9

1011

3

Table of contents

Product Training: Combine OperationsSpring 2017

Demo evaluation

1. Header

2. Feeding

3. Pre concave

4. Main concave (Threshing)

5. Impeller

6. Separation (rotors / walkers)

7. Prep pan

8. Fan

9. Top sieve

10. Bottom sieve

11. Residue management

1

CLAAS ACADEMY

Header

Spring 2017 Product Training: Combine Operations4

Side draper speed1. Too fast

- Crop flow concentrated in center

- Cannot utilize full combine capacity (width)

2. Optimal speed

+ Smooth, wide feed

+ Good capacity to keep up with incoming crop

3. Too slow

- Chance of wrapping under side draper belts

- Chance of pinching crop in side-wall

CLAAS ACADEMY

Header


Flighting extensions• Match width of feederhouse and conditions

• Wide feederhouse should have few/no extensions

1.

2.

CLAAS ACADEMY

Header


HP Feederhouse1. Too far forward

+ Aggressive cut angle

+ Knife may cut closer to the ground

- Increased risk of damaging knives or dirt intake

2. Too far backward

+ Less likely to intake rocks

+ Retain slightly more crop

- May not get under lodged crop well enough

- May not get close enough cut to the ground

CLAAS ACADEMY

Feederhouse


Drum position1. Drum up: wider intake of crop

+ Better feeding in corn/sunflowers

+ Less aggressive

- Less consistent feed in small grains

2. Drum down: narrow intake of crop

+ Better feeding in small grains

+ More aggressive for tough conditions

- Increased shelling/threshing action

CLAAS ACADEMY

Feederhouse


Speed1. High speed (420rpm)

+ Best feeding in small grains

- Increases aggressiveness of feederhouse

- Inconsistent feeding (grass seed)

3. Mid-speed

+ Good speed for corn & soybeans

- Moderate aggressiveness not ideal for pulse crops

4. Low speed (300rpm and below)

+ Most gentle speed range

- Can limit capacity in small grains

CLAAS ACADEMY

Pre-concave


Dis-awning plates1. Open

+ Pre separation

+ Decreased damage

- Increased chaff on cleaning shoe

2. Closed

+ More aggressive threshing

+ Decreased chaff on cleaning shoe

- Potential for increased grain damage

CLAAS ACADEMY

Pre-concave


APS grates1. Key stock


- Increased damage


2. Smooth

+ Less aggressive threshing

+ Decreased chaff on cleaning shoe

- Potential for increased grain damage

3. Large opening

+ More pre-separation (more capacity)

+ Large grain can be pre-separated

- More chaff on cleaning shoe

4. Small opening

+ Less chaff on cleaning shoe

+ Small kernels can be pre-separated

- Large material cannot pass (including grain)

1 2

3

56

4

1

2 3 4

5 6

7

5 6 7

1 2

CLAAS ACADEMY

Main concave (threshing)


Configurations1. Round bar

+ Most open area

+ Least aggressive (ideal for corn)

- Can struggle to thresh tougher small grains

- Filler strips cannot be installed

2. N18

+ Key stock makes it more aggressive

+ Filler strips can be installed for small grains

+ Good open area for high capacity

- Can struggle to thresh tougher small grains

3. N7/18

+ Most aggressive

- Less open area – less capacity

*These are not interchangeable on short notice

CLAAS ACADEMY

Concave gap1. Tight (7-12mm)


- Increased damage possible

- Increased chaff load

2. Medium (13-20mm)

+ Moderate threshing

- Moderate chaff load

- Moderate damage possible

3. Open (20+mm)

+ Gentle threshing

- Reduced chaff load

- Reduced damage possible



CLAAS ACADEMY

Threshing speed1. High

+ Most aggressive threshing



2. Medium

+ Moderate threshing

- Moderate chaff load

- Moderate damage possible

3. Low

+ Gentle threshing

- Reduced chaff load

- Reduced damage possible



CLAAS ACADEMY



High / low range1. High range

+ 400-1050rpm

+ Increased threshing action

2. Low range

+ 180-450rpm

+ Higher torque

2

1

1

2

1

2

If working near this speed, switch to LOW range for best

performance & highest torque

CLAAS ACADEMY



Small grains kit1. Holds material in longer




- Limits capacity in high-volume conditions

Intensive threshing segment (ITS)

Pre-concave

cover plate

Filler strips

CLAAS ACADEMY

Rotors (separation)


Rotor speed1. High speed = high separation force

+ High separation force (lots of straw / material)

- Can limit capacity in high-yield crops (“auger effect”)

*In straw/stem crops, typically at least +100rpm over the threshing speed is

recommended for best material flow

3. Low speed = low separation force

+ Increases capacity in high-yield crops

- Low separation force can prevent grain from separating

CLAAS ACADEMY

Rotors (separation)


Rotor cover plates1. Closed

+ Cleaner sample (less trash on sieves)

- Limits separation area (capacity)

3. Open

+ Maximum separation area

- Increased chaff load on sieves (more trash on sieves)

CLAAS ACADEMY

Walkers (separation)


MSS drum finger pitch1. Aggressive

+ Better separation (fluff)

- Tough material may wrap

2. Passive

+ No wrapping

- Reduced separation

Curtain1. Higher position

+ Better capacity in lighter material

- More likely for material to back feed or wrap

2. Lower position

+ Better material flow and MSS performance

- Can affect capacity with lighter or tough material

CLAAS ACADEMY

Preparation Pan


Clean1. Moisture, dirt can buildup on tough conditions

2. Reduces amount of material pan can move per stroke –

which can affect machine capacity

CLAAS ACADEMY

Fan


Fan speed1. Too high

+ Very clean sample

- Potential for increased losses

- Potential for increased returns

2. Too low

+ Reduced sieve losses

+ Potential for decreased returns

- Potential for increased FM in sample

../2016 LEXION Product Training/Videos and Animations/JET STREAM Animation.exe

CLAAS ACADEMY

Sieves


Sieve selection1. Short-tooth

2. Deep-tooth

3. TM6

4. Frog-mouth

5. Fixed-hole

Opening size

• Large – better capacity, less cleaning

• Small – less capacity, better cleaning

321

CLAAS ACADEMY

Short-tooth sieve


CLAAS ACADEMY

Deep-tooth sieve


CLAAS ACADEMY

TM6 sieve


CLAAS ACADEMY

Standard frog-mouth


CLAAS ACADEMY

Fixed-hole sieve


CLAAS ACADEMY

Sieves


Upper sieve adjustment• Tighter – more potential for losses, cleaner sample

• Open – more capacity without losses, dirtier sample

CLAAS ACADEMY

Sieves


Upper sieve adjustment1. Too tight

+ Very clean sample

- Potential for increased losses

2. Too open

+ Fewer losses (higher capacity)

+ Reduced returns possible

- More FM in sample

*Setting the upper sieve ALWAYS affects the performance of the

lower sieve

Tight upper sieve Open upper sieve

CLAAS ACADEMY

Sieves


Lower sieve adjustment1. Too tight

+ Cleaner sample

- Potential for increased returns

2. Too open

+ Fewer returns

- More FM in sample

Tight lower sieve Open lower sieve

LossLoss

CLAAS ACADEMY

Chopper


Stationary knives (A), Friction plate (B), Shear bar (C)1. Engaged

+ Smaller residue size

+ Better spread width (MAV, Standard)

- Increased horsepower load

2. Disengaged

+ Larger residue

+ Decreased horsepower load

If a better chop quality is desired:

1. Start with Friction plate

2. Engage stationary knives halfway

3. Engage stationary knives full

4. Engage shear bar

*Friction plate only on TURBO CHOP and PRO CHOP

A

C

B

CLAAS ACADEMY

Scenario #1


Too much returnsHarvesting 300bu/ac corn, you notice the return level is very high. Grain

tank is clean and losses are low.

Solutions:

• Feederhouse speed

• Dis-awning plates

• Change pre-concave grate

• Small grains kit

• Concave gap

• Threshing speed

• Rotor speed

• Rotor cover plates

• Fan speed

• Top sieve

• Bottom sieve

CLAAS ACADEMY

Too much returnsHarvesting 300bu/ac corn, you notice the return level is very high. Grain

tank is clean and losses are low.

Solutions:





• Concave gap

• Threshing speed

• Rotor speed


• Fan speed

• Top sieve

• Bottom sieve

Scenario #1


Decrease

Open

Open

• Fan speed: decrease, to let more material fall through the sieves early

• Open top sieve: allows more material to hit the bottom sieve early, and make it more likely to pass

through the bottom sieve

• Open bottom sieve: Bottom sieve has biggest effect on returns levels, if sieve is too tight material

will roll over the sieve and into the return system

CLAAS ACADEMY

Scenario #2


Poor grain sampleHarvesting soybeans, you notice a few beans are being split, and it is

also difficult to keep FM out of the grain tank. Loss levels and returns

are low.

Options:





• Concave gap

• Threshing speed

• Rotor speed


• Fan speed

• Top sieve

• Bottom sieve

CLAAS ACADEMY

Scenario #2


Poor grain sampleHarvesting soybeans, you notice a few beans are being split, and it is

also difficult to keep FM out of the grain tank. Loss levels and returns

are low.

Options:





• Concave gap

• Threshing speed

• Rotor speed


• Fan speed

• Top sieve

• Bottom sieve

Open OR close

Smooth

Open

Slow

Close

Increase

Close

Close

• Open dis-awning plates: May reduce cracks/splits, but let more trash through

• Close dis-awning plates: May reduce trash in tank, but increase cracks/splits

• Change pre-concave grate: removing a key stock grate and installing a smooth grate may help reduce grain damage and also reduce the trash

breakup in the APS area

• Open concave & Slow threshing speed: be more gentle in the threshing phase to improve grain quality and reduce the trash

• Close rotor cover plates: hold more trash in the rotors, and hopefully carry it out to the chopper instead of falling to sieves

• Close top sieve: Will make the sample cleaner, but will not affect grain quality

• Close bottom sieve: Will make the sample cleaner, but will not affect grain quality

CLAAS ACADEMY

Scenario #3


Excessive damageHarvesting very dry crop, you notice excessive grain damage in the

tank. Sample is clean and losses are low

Options:





• Concave gap

• Threshing speed

• Rotor speed


• Fan speed

• Top sieve

• Bottom sieve

CLAAS ACADEMY

Scenario #3


Excessive damageHarvesting very dry crop, you notice excessive grain damage in the

tank. Sample is clean and losses are low

Options:





• Concave gap

• Threshing speed

• Rotor speed


• Fan speed

• Top sieve

• Bottom sieve

Slow

Open

Smooth

Remove

Open

Slow

• Slow feederhouse speed: Will have only a small effect, but can reduce grain damage

• Open dis-awning plates: Allow grain to bypass the threshing cylinder and go straight to the cleaning shoe

• Change pre-concave grate: Removing key stock and installing a smooth grate to be less aggressive on incoming crop

• Remove small grains kit: Pre-concave cover plate, Intensive threshing segments, and filler strips increase aggressiveness. Remove to

improve grain quality

• Concave gap & Threshing speed: Open the concave gap and slow the cylinder down to be less aggressive in the threshing phase

CLAAS ACADEMY

Scenario #4


White-capsHarvesting tough wheat, you notice white caps in the grain tank

Options:





• Concave gap

• Threshing speed

• Rotor speed


• Fan speed

• Top sieve

• Bottom sieve

CLAAS ACADEMY

Scenario #4


White-capsHarvesting tough wheat, you notice white caps in the grain tank (outer coating around kernels

caused by not threshing well enough)

Options:





• Concave gap

• Threshing speed

• Rotor speed


• Fan speed

• Top sieve

• Bottom sieve

Close

Key stock

Add

Close

Increase

Close

Close

• Close dis-awning plates: Hold more material in the threshing area for longer

• Change pre-concave grate: Installing a key stock grate instead of a smooth grate will increase aggressiveness

• Add small grains kit: Pre-concave cover, Filler strips, and intensive threshing segments (ITS) will all increase threshing aggression

• Concave gap & cylinder speed: Closing concave and increasing cylinder speed will increase threshing aggression

• Rotor cover plates: Closing may allow the whitecaps to rub against straw/chaff more and rub the whitecap off the kernel before cleaning

• Close bottom sieve: Closing the bottom sieve will send more material through the return system, giving it more time to work the whitecap off

the kernel

CLAAS ACADEMY

Scenario #5


White-capsHarvesting wheat, you are getting great thresh quality, but seeing rotor

loss and lower capacity than expected

Options:





• Concave gap

• Threshing speed

• Rotor speed


• Fan speed

• Top sieve

• Bottom sieve

CLAAS ACADEMY

Scenario #5


White-capsHarvesting wheat, you are getting great thresh quality, but seeing rotor

loss and lower capacity than expected

Options:





• Concave gap

• Threshing speed

• Rotor speed


• Fan speed

• Top sieve

• Bottom sieve

open

smooth

remove

open

decrease

Increase or decrease

Open

• Open dis-awning plates: let grain through earlier to increase capacity

• Change pre-concave grate: installing a smooth grate may create less trash in the cylinder/rotors, making grain easier to separate

• Remove small grains kit: Removing components will allow material to fall through concave/grates sooner (increasing capacity), as well as

decreasing trash in the cylinder/rotors (making it easier to separate)

• Concave gap & Cylinder speed: Open the concave gap and slow the cylinder to have less trash breakup and make it easier for the rotors to

separate

• Increase rotor speed: If cutting lots of material/straw, may need higher separation force for grain to escape the rotors

• Decrease rotor speed: If not cutting lots of material/straw, slow the rotors down to reduce the “auger” effect and allow more time for separation

• Open rotor cover plates: Create more separation area & allow grain to separate sooner in the rotors

THANK YOUQuestions?


LEXION Combine Operations Product Training 2017 · 2017. 7. 11. · Dis-awning plates 1. Open + Pre...

Documents

Transcript of LEXION Combine Operations Product Training 2017 · 2017. 7. 11. · Dis-awning plates 1. Open + Pre...