COMBINE HARVESTER AW70V, VNQ, AW82V, VNQ. Manual - part 21

Periodic Inspection

 

85 

 

 

19. Checking and replacing fuse

 

 

 

Do not use any fuses not specified. 
Otherwise, fire hazard may be caused.

 

 
Use the specified fuse for replacement if the fuse in the 
fuse box breaks. 
In case the fuse is once again broken after replacement, 
take it to the dealer for checking. 
The fuse box is located in the left board under the 
driver’s seat. 

 

 

 

 

 

 

 
 
 
 
 
 
 

 

 
 
Do not use any fuse other than that of the specified 
capacity. 

 

20. Adjusting the chains

 

Header drive chain 
Bending A (15±3mm) of the chain when you press the 
central part (part B) slightly by hand. 
<Adjusting> 
1- Remove the upper and lower covers of threshing 

section. 

2- Remove the fixing bolts of tension wheel. 
3- Use the adjusting bolt to tension the chain. 
4- Fasten the fixing bolt and mount the side covers. 

 

 

[Note] 
Check whether there is a space between the covers 
with the chain at A, B, C, and zone D. 
 

Drive chains of the platform auger and reel

 

 
Bending A of the reel drive chain (16±3mm) and B of 
the platform auger drive chain (19±3mm) when you 
press the central parts (A and B) slightly by hand. 
<Adjusting the reel drive chain> 

1- Remove the right side cover of the header. 
2- Loosen the fixing bolt to move the tensioning wheel. 
3- Screw down the fixing bolt and mount the upper side 

cover. 

Adjusting bolt

Fixing bolt

Periodic Inspection

 

86 

 

 
<Adjusting the header auger drive chain> 
1- Remove the right side cover of the header. 
2- Loosen the fixing bolt to adjust the tensioning nut. 

 

 

 

Feeder house drive chain

 

The gap between the chain slat and the bottom of 
feeder house is over 6±1mm (part A). 

 

 

 

 
<Adjusting the feeder house drive chain> 
1- Remove the chain cover. 
2- Rotate the feeder house drive chain by hand. 
3- Adjust the left and right sides concurrently. 

 

4- Loosen the fixing bolt and turn the adjusting nut. 
5- Tighten the fixing bolt and mount the cover. 
 

Reaping section drive chain

 

The bending is about 20±3mm when you press the 
central part (part A) slightly by hand. 
 

 

 

Chain position

Base plate

A

Feeder house 

drive chain 

Slat 

Fixing bolt

Adjusting nut

Chain position

Adjusting nut

Fixing bolt

Periodic Inspection

 

87 

 

 
1- Loosen the fixing bolt and use the adjusting nut to 

change the chain tension. 

2- After checking the bending of part A, tighten the bolt 

and mount the side cover. 

 

21. Adjusting the belts

 

 

Checking the belt tensioning wheel

 

 

 

Spark may be generated during operation 
and cause fire if the belt tensioning wheel 
is in contact with other parts (except the 
belt).

 

 
[Precaution] 
Check whether the belt tensioning wheel is in 
contact with other parts before daily operation. 
Adjust immediately in case of contact, and check 
the internal bearing of belt wheel. 
 

Cooling fan belt (engine)

 

 
Press the belt center with your finger to adjust the 
deflection to 12.5±2.5mm. 
<Adjusting> 
1- Open the engine room cover. 
2- Loosen the fastening bolt of generator. 
3- Draw the generator to the direction of arrow to 

tension the belt. 

4- Tighten the fastening bolt. 

 

 

 

Adjusting the tension of threshing clutch 
belt

 

 
Put the threshing clutch lever to “ON” and check 
whether the size of tension spring falls between 190±
2mm. 
 

 

 
<Adjusting> 
1- Remove the two covers of engine rear side. 
2- Put the threshing clutch lever to “ON”. 
3- Loosen the lock nuts (2 pieces) of threshing clutch 

lever, and use the tensioning screw to adjust the 
spring length to 190±2mm, as shown below. 

 

Adjusting the tension of header clutch belt

 

Put the header clutch lever slightly to “ON” and check 
whether the tension spring size falls in 233±2mm. 
 

 

Deflection 12.5±2.5mm

Engine fixing bolt 

Lock nut

190

±

2mm

233±2mm 

Periodic Inspection

 

88 

 

 
<Adjusting> 
1- Open the upper cover of the threshing section. 
2- Put the header clutch lever to “ON”. 
3- Use the header clutch wire (part B) to adjust the 

spring length to 233±2mm, as shown below. 

 

 
 

Threshing rotor drive belt

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
Adjust the tension spring length to 270±2mm. 

 

 

 
<Adjusting> 
1. Remove the side cover of the threshing section. 
2. Loosen the lock nut and turn the adjusting nut to 

change the spring length. 

3. Fix it with the lock nut. 

 

 

 

Tension spring

Threshing rotor drive belt 

270

±

2mm

Adjusting part