User Manual
  SECTION 7 MAINTENANCE AND SERVICING 
169000 / 169040  144  Revision E 
7.9  REEL AND REEL DRIVE: A30-S, 
A30-D 
CAUTION 
To avoid personal injury, before servicing 
header/mower conditioner or opening drive 
covers, follow procedures in Section 7.1 
PREPARATION FOR SERVICING. 
7.9.1  Reel Drive Chain: A30-S, A30-D 
7.9.1.1 Tension 
NOTE 
For major adjustments, such as after re-
positioning reel or auger, adjust belt 
tension before
 chain tension. 
Adjust reel drive chain (A) tension as follows: 
a.  Open shield on header RH side. 
b.  Loosen nut (B) on idler sprocket. 
c.  Loosen jam nut on adjuster bolt (C), and back 
off. 
d.  To increase tension, turn adjuster bolt (C) to 
move idler sprocket downward until total chain 
slack at (A) is 1/4 in. (6 mm). 
e.  Tighten jam nut at (C) and nut (B), and re-check 
tension. 
f.  Close shield before enga ging header. 
7.9.1.2 Removal 
Remove reel drive chain (A ) as follows: 
a.  Open shield on header RH side. 
b.  Remove reel drive belt (D) from pulley (E).  
Refer to Section 7.9.2 Reel Drive Belts: A30-S, 
A30-D. 
c.  Loosen nut (B) on idler sprocket. 
d.  Loosen jam nut on adjuster bolt (C) and back 
off. 
e.  Turn adjuster bolt (C) to loose n chain. 
f.  Remove chain from sprockets. 
7.9.1.3 Installation 
Install reel drive chain (A) as follows: 
a.  Position chain (A) around sprockets as shown. 
b.  Install and tighten reel drive belts (D). Refer to 
Section 7.9.2 Reel Drive Belts: A30-S, A30-D. 
c.  Turn adjuster bolt (C) to move idler sprocket 
downward until total chain slack at (A) is 1/4 in. 
(6 mm). 
d.  Rotate auger, and check chain for slack at 
tightest point. Re-adjust position of idler 
sprocket to achieve required slack. 
e.  Tighten jam nut at (C) and nut (B), and re-check 
tension. 
f.  Close shield before enga ging header. 
B 
A 
C
E 
D
B 
A 
C 










