COMBINE HARVESTER AW70V, VNQ, AW82V, VNQ. Manual - part 13

Operation

 

53 

 

 

(10) Adjusting the header height when 

harvesting

 

 
Under normal condition (crops grow normally), the 
harvesting height should be 60-70cm from the spike tip. 
 
[IMPORTANT] 



 

If the harvesting height exceeds 70cm, the power 
consumption will be increased and energy 
efficiency be decreased; the threshing chamber 
may be accumulated with dust, swing separator be 
blocked, and threshing loss be increased, leading to 
poor screening.

 



 

If the harvesting height is below 60cm, friction effect 
in the threshing chamber will be impaired and grain 
loss be increased. Put the chaff discharge adjust 
lever to “Close” to reduce loss.

 

 

(11) Push the main shift lever forward to 

start harvesting slowly 

 

Put the main shift lever to “Standard” or lower speed gears in 
case of grain loss during “High Speed” harvesting of ledged, 
moist, immaturely or high-yield crops.

 

 
[Note] 
If the range shift lever is to be operated during 
traveling, stop the machine before switching. 
 

(12) Upon completion of harvesting, put 

the header clutch lever to “OFF”, and 
after no grain is discharged from the 
outlet, move the threshing clutch lever 
to “OFF”, and then turn off the engine.

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 

 

Harvesting the ridged crops

 

 


  Harvesting height: To prevent missing during harvesting, 

 

 


  Reel height: To be lowered down as possible. 

 

 


  Front/rear position of reel: The reel should be extended to 

an appropriate height to prevent missing in gripping and 
reeling up mud. 

 



  Change to a low-speed sprocket (accessory) and 

slow down the reel speed. 

Harvesting height

Reel height

Front / rear position of reel

 

Operation

 

54 

 

 



  Position of crop dividers: To be determined based on that 

of the right divider to prevent missing in harvesting. 

 

 

Turning during operation

 

 

 

Be sure to warn the co-worker (s) before 
turning, moving forward or backward 
during operation. 
If turning is required after harvesting, raise 
the header to prevent hitting any stubble 
or crops discharged. 

 

[Precaution] 


  Do not put the threshing clutch lever to “OFF” or 

reduce the engine speed during turning, when the 
threshing section is still working. 



  The total loss rate may be increased if you turn at a 

high speed during harvesting of crops high in yield. 
Turn slowly. 

 

 

 
 
 
 
 

 

 

 

 

 

 

 

 

 

Right divider

Position of crop dividers

 

Operation

 

55 

 

 

Operating speed

 

 
Select the gears of range shift lever and main shift lever 
according to the condition of operation and crops to 
ensure optimum efficiency of operation. 
 

 

 

 
[Precaution] 
Put the main shift lever to “4” or lower before 
operation if you are a beginner or unfamiliar with 
the machine or the field condition is operation. 
Move the main shift lever to the highest speed 
according to the condition of crops and field after 
you become skilled. 
 

 

 

Use the main shift lever and auxiliary shift lever to adjust the harvesting speed in reference to the table below

. 

 

Crop 

moisture 

Operating 

speed 

Position of 
range shift 

lever 

Position of

main shift 

lever 

Lodged crops 

Lodging 

angle 

 

Harvesting direction and speed 

Much 

 

Little 

Low 

 

High 

Low 

Stop 

 
 
 

Forward 

Large 

 

Small 

 

 

Standard 

Stop 

 
 
 

Forward 

Traveling 

Stop 

 
 
 

Forward 

 

 

 

 

 

Upright

Crops

Forward 

harvesting

 

Left / right 

lodging

 

Reverse

harvesting

Operation

 

56 

 

 

Replacing the grain bag

 

 

 

 

When removing obstacles or observing the 
operating status of grain tank while the 
machine is running, do not put your hand 
or body deep in the machine. Otherwise, 
you may be injured. 

 
1- The alarm buzzer will sound and the full grain tank 

alarm on the instrument panel will be lit when the 
tank is full of grain. 

 

 

 
2- After the bag if filled with grain, close the discharging 

gate and replace the bag. 

 

[Precaution] 
Check the volume of grain tank frequently during 
operation. If the grain tank is excessively filled, 
grain will block the outlet of lift conveyer to cause 
blocking, burning of belt and other failures. 
 

Manual threshing

 

 

 

● 

Park the combine on a horizontal 
ground and engage the parking brake.

 

● 

Two persons should be assigned for 
coordination during threshing by the 
means of feeding, one of which 
should seat in the operator seat to 
stop the engine immediately in case of 
abnormality.

 

 

● 

You may be rolled in the reel and 
injured in the process of threshing by 
feeding. So, be sure to follow the 
instructions below.

 

● 

A co-worker must sit in the operator 
seat during operation so as to timely 
stop the engine in case of 
abnormality.

 

● 

Roll up your cuff, and do not wear a 
towel around your head, neck or waist 
during operation.

 

● 

The operator should stand diagonally 
away from the reaping section and 
feed crops gradually in small amount.

 

● 

Chaff may pile up below the dust 
exhauster hood during threshing by 
feeding. Do not let the piled chaff 
come into contact with the engine 
exhaust pipe. Otherwise, fire hazard 
may be caused.

 

● 

Discharged straw and chaff may pile 
up below the discharging section in 
case of large-amount threshing while 
the combine harvester is stopped. Fire 
hazard may be caused by chaff in 
contact with the outlet of engine 
exhaust pipe. In this case, move the 
machine or remove the piled chaff.

 

 

 

 

Full grain tank alarm

Chaff