John Deere OMM141979 J9 - Manual (Page 21)

Service - 17
SERVICE
Service
Service Intervals
Checking Belt Tension
Picture Note: Tiller removed for clarity purposes
only.
1. Check position of belt tension rod (A):
• If rod end is in position (B), against the vertical frame
rail (C), the belt is too tight and must be loosened.
• If rod end is in position (D), extends beyond
horizontal frame rail (E), the belt is too loose and must
be tightened.
2. To adjust belt tension:
• Move to left rear of tiller frame—loosen nut (F) on the
idler pulley.
• To tighten belt—turn bolt (G) counter-clockwise until
a 3 mm (1/8 in.) clearance exists between inside edge of
rod end (H) and vertical frame rail (C).
• To loosen belt—turn bolt (G) clockwise until a 3mm
(1/8 in.) clearance exists between inside edge of rod
end (H) and vertical frame rail (C).
• Tighten nut (F) on the idler pulley after adjustment.
5 Hours Check belt tension.
Clean under belt shield.
10 Hours Lubricate drive sheave bearing.
Lubricate rear jackshaft.
M96301
A
M72980
C
B
E
D
A
G
F
M96300
C
H
M41784