COMBINE HARVESTER AW70V, VNQ, AW82V, VNQ. Manual - part 15

Operation

 

61 

 

 

If it is unavailable to use a rescue truck for towing, loading/unloading plate, gangplanks and other materials 
can be used to make the machine available for towing. In this case, fully remove clay attached on the track. 
Otherwise, the machine cannot be towed due to crawler sliding. 
 

 

 

 

 

[Note] 

Never use your combine harvester to tow any other machines, or mechanical failure may be caused. 

 

Towing

 

Shovel

Digging

 

Loading / unloading plate

Operation

 

62 

 

 

5. Alarm

 

 

 

 

 

 

 

 

 

 

 



  Stop the engine without fail and engage the brake pedal lock, when you remove jam. 



  Do not put the hand in the conveyor and the chain. It causes to injure. 

 

When the indicator lamps or the buzzer sounds, make sure of abnormal point and take the following steps. 

 

No Mark 

Name 

Alarm 

Remedy 

Check/maintenance

1 

Charging 

○

 

It is normal that the indicator is on after turning 
the key switch to “ON” and off after the engine 
starts up. Check the charging circuit if the 
indicator remains lit during operation. 



 Tension 

of 

engine fan 
belt 

2 

 

Oil pressure 

○

 

It is normal that the indicator is on after turning 
the key switch to “ON” and off after the engine 
starts up. Check oil quantity if the indicator 
remains lit during operation. 



 Insufficient 

engine oil. 



 Low 

oil 

viscosity 

3 

 

Water 

temperature 

◎

 

Perform no-load operation at a low speed till 
the indicator goes out, and then turn off the 
engine. If the cooling liquid is insufficient, add 
after the engine cools down. 



  Tension of fan 

belt 



 Water 

leakage



 Cleaning 

dust 

on the screen 
of radiator 

4 

 

Grain tank 

◎

 

When the tank is full of grain, stop the 
harvesting, and discharge grain. 

 

5 

 

2nd 

◎

 

If the secondary conveyer is blocked, stop the 
machine and clean completely. 



 Belt 

tension 

○

  means the indicator is lit;  ◎  means the indicator is lit while the buzzer sounds; 

 

 

○

1

 

○

2

○

3

 

○

4

○

5

Maintenance after operation 

 

63 

 

 
1. Post-operation maintenance

 

 

 



  Be sure to stop the engine and lock 

the brake pedal before lock cleaning 
and unclogging. 



  Your hand may be nipped by moving 

parts or cutter and injuries be caused 
in case of maintenance while the 
engine is running. 



  Never smoke or use open fire for 

lighting during refueling. 



  Tighten the fuel tank cover and wipe 

off any spilled fuel after refueling. 

 
After cleaning with water, wipe off water fully, and then 
add lubricant in various moving and sliding parts. In 
particular, the cutters should be coated with lubricating 
grease in advance, chains, wires and other greasing 
parts must be added with lubricant. 
 
[Precaution] 



 

It is not allowed to clean with water any parts 
other than the chassis, so as to avoid failures. 



 

After inspection and maintenance of parts, be 
sure to perform test run to check their working 
condition. 

 

2. Detaching and opening of each 

part 

 

 

Be sure to stop the engine and lock the 
brake pedal before detaching or opening 
any parts. Otherwise, you may be injured.

 

 

 

Make sure to replace the detached panels 
after operation, or you may get injured.

 

 

Opening the threshing section

 

 
Open the threshing section as instructed below for 
section of the concave screen and inside. 
 

 
1- Lower down the header to the lowest position, and 

then open the upper cover and side cover of the 
threshing section. 

 

 

 

2- Pull out the pin of rotating fulcrum of the side 

threshing section. 

 

 

 

3- Pull the fixing lever of threshing section outward to 

open the side threshing section. 

 

 

 

Pin

Upper cover

Fixing lever

Side cover of

threshing chamber

Maintenance after operation

 

64 

 

 
4- Change the position of pin hole to fix the side 

threshing chamber after it is opened. 

 

 

Detaching the concave screens

 

 
Open the side threshing chamber, and loosen the fixing 
bolts to detach the 4 concave screens inside and 
outside. 
 

 

 

 

 

 

 

 

Detaching the swing separator

 

 

1- Open the side threshing section. 
 
2- The swing separator can be seen after the two 

protective covers at the rear end are removed. 

 

 

 

Changed pin position

 

Swing separator

 

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