MacDon 5010 Mower Conditioner - Manual (Page 52)

50
MAINTENANCE/SERVICE
SICKLE AND SICKLE DRIVE (continued)
Sickle Drive Belt Tension
IMPORTANT: To prolong belt and drive life, do not
over-tighten belt.
To adjust:
1. Loosen nut (A) securing idler pulley.
2. Using a punch or screwdriver in pry holes (B),
raise idler until a force of 12 lbs. (55 N) deflects
belt 1/2 inch (13 mm) at mid-span.
3. Tighten nut (A).
4. Re-adjust tension of a new belt after a short
run-in period, (about 5 hours).
Sickle Drive Belt Replacement
To remove belt:
1. Loosen chain idler sprocket (C) and remove
chain from drive sprocket behind pulley (D).
2. Loosen nuts (E), then loosen and remove
auger drive belt.
3. Loosen sickle drive belt idler pulley (A).
4. Remove belt from sickle drive pulley.
5. Remove bolt-in plate in left end sheet at wobble
box (F), and route belt through this hole.
When installing new belt, never pry belt over
pulley. Be sure idler is fully loosened, then tension
belt as above.
SICKLE DRIVE BELT TENSION ADJUST.
A
B
SICKLE DRIVE BELT REMOVAL
A
C
F
D