Kincaid 8xp. Manual - part 9

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Driving in the Field:

The steering brakes may be used for reduce turning radius. When reversing, it is

not necessary to use the steering brakes.

Never use the third gear in the field

Soft Field Conditions:

To improve the “floating capability”, the air pressure of the front tyres may be reduced by 20

kPa (0.2 bar). Do not reduce the air pressure of the rear tyres.

With reduced tyre pressure, only half-fill the grain tank.

When returning to normal harvesting conditions, return to recommended pressures.

On Steep Slopes:

Increase the tyre pressure by approximately by 30 kPa (0.3 bar) to improve stability

of the combine.

Only half-fill the grain tank to eliminate the risk of overturning.

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Threshing instructions

Choose the Correct Time and Conditions

Before starting the harvest make sure that the crop to be threshed is ripe and dry enough.

The germinating power of most crops is easily reduced if the threshing moisture exceeds 25%.

Moreover, moist crops complicate harvesting and overload the threshing machinery. They also

easily stick on the surfaces of the separating equipment and elevators, so that the combine

must be cleaned more often than usually.

Good Threshing Result with Even Feed

Always run the engine at maximum speed. When the machine is in operation, it is important

to adjust the forward speed, cutting height and the reel according to crop conditions, to

achieve as even a feed as possible into the machine. Do not cut too low. Leafy matter moistens

the straw leading to a poor threshing result.

Start With the Recommended

Settings

In the table you will find settings and adjustments

for different crops. After adjusting your

combine according to those recommended

settings, check the sample after a test run at

the speed you will use in harvesting. Observe

the quality of the sample coming into the tank

and the losses in the field.

NOTE! When threshing heavy strawed crops

without chopper, it is important to observe

that the straws come out of the straw walkers

without clogging the chaff hood when the

combine is stopped.

Reel Position in Accordance

With Crop

For normal standing crops, set the reel in its

rear position at such a height that the reel 

tines

lightly strike the crop. Reel speed slightly

higher than the combine ground speed, with

the crop feeding head first, Fig. 48.

For short-strawed crops, lower the reel so

that the tines strike just above the knife.

The higher the reel speed, the shorter straw

is cut with the heads. The reel must pull in

the heads toward the combine.

For long-strawed standing crops, set the

reel in its forward position, the speed less

than the combine ground speed so that the

heads are pushed forward and the crop is 

laid

butt first to the threshing machinery, Fig. 49.

For laid crops, set the reel forward, reel 

speed higher than the combine ground speed 

and the reel angled to facilitate the gathering 

of

the crop, the knife cutting below the heads, Fig. 50. When using crop lifters, the reel should

feed the cut crop on to the table auger with the reel tines in the normal position.

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Adjust the Straw Dividers To Reduce

Table Losses and To Improve Feeding

To avoid threshing losses caused by straw dividers, pay special attention to adjusting them

according to the conditions and crops.

Adjust the height of the dividers with the slide piece so that in laid crops the dividers

follow the contours of the field beneath the crop. In standing crops the head of the divider

should be set 10 to 15 cm above the knife.

Long-strawed reclining or laid crops are lifted by the upper guide plate so that the reel

can gather the crop for cutting and conveying onwards to the table auger.

The outside guide tube is used in crops with long straw to move the uncut crop a side.

Estimation of Threshing Losses

2 per cent is generally considered to be the

upper limit of threshing losses. It can be

proved as follows: With an estimated yield

of 3500 kg/ ha, the weight of 1000 grains

is 35 g; when observing the width of the

combine, max. 2 grains may be found on

the area of 1 sq. dm (a hands-breadth).

Sources of grain loss:

•  Shedding in the field before harvesting

•  From the table

•  Unthreshed grain

•  From the shaker shoe

•  From the straw walkers

Before readjusting, make a methodical

check in the above order to isolate the cause

of the loss. Make one adjustment at a time

and check the result with a test run.

In the Field Before Harvesting, check the

crop well in front of the machine to ensure

that shedding has not occurred before the

machine has touched it.

To test for the table loss, stop the machine

and reverse it one combine length; the grain

loss can easily be seen in the field.

Causes of table loss:

•  reel position or speed incorrect

•  local blockage in knife resulting in a 

pressed or uncut strip in the stubble; 

cause: a damaged knife or finger

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Unthreshed Grain

Check that the grain is being threshed from heads. With a chopper fitted, examine the heads

on the straw before chopping.

Cylinder speed should be moderate and concave clearance as wide as possible, to have

unbroken grain and straw as well as small loss from the straw walkers. It is not necessary to

achieve complete threshing. Unthreshed grain loss can be caused by:

•  cylinder speed too low

•  cylinder-concave clearance too wide

•  uneven feed

•  crop too green in parts

•  damaged cylinder or concave.

Shaker Shoe Losses

If the sample coming from the sieves (taken on a shovel, for example) shows grain being lost,

check for the following:

•  excessive or insufficient fan speed

•  direction of cleaning fan air flow incorrect

•  blocked sieves

•  chauffer sieve not sufficiently open

•  crop too damp

•  too much weed

Straw Walker Losses

If the sample coming from the straw walkers shows grain being lost, check the following:

•  uneven feed

•  blocked concave and/or straw walkers

•  excessive forward speed

•  cylinder-concave clearance too small

•  too much weed

•  crop too damp

Quality of Sample in Tank

If there is crushed or cracked grain in the sample, the reason could be:

•  cylinder speed too high

•  cylinder-concave clearance too small

•  blocked concave

•  crop too green in parts

If the sample is dirty, the reason could be:

•  insufficient fan speed

•  cleaning fan deflectors incorrectly set

•  chauffer sieve set too far open

•  forward speed too low (inadequate loading of the threshing machinery)

•  crop sparse in places and weedy

•  excessive cylinder speed, cylinder

•  concave clearance too small

•  too much time spent out of the crop (turning etc.)