MacDon 5010 Mower Conditioner - Manual (Page 57)

55
MAINTENANCE/SERVICE
AUGER AND AUGER DRIVE (continued)
Auger Drive Chain Lubrication
Lubricate chain (A) daily with lightweight oil (SAE
30).
Auger Drive Chain Tension
To tighten auger drive chain:
1. Loosen idler sprocket mounting bolt (K).
2. Using a punch or screwdriver in pry holes (L),
move sprocket upward until deflection at (M) is
1/4 inch (6 mm).
3. Tighten bolt (K).
Auger Drive Belt Tension
IMPORTANT: To prolong drive life, do not over-
tighten belt. Belt slippage is used to protect the
auger in an overload situation.
NOTE: Minor belt tension adjustments may be
made without affecting chain tension. For major
adjustments, like after repositioning reel or auger,
adjust chain tension before belt tension.
To adjust auger drive belt tension:
1. Loosen nuts (P) one or two turns.
2. Back off jam nut (R), then turn nut (S) to adjust
hook bolt until a force of:
NEW BELT - 20 lbs. (80 N)
USED BELT - 12 lbs. (55 N)
deflects belt 1/4 in. (6 mm) at mid-span.
3. Tighten jam nut (R) against nut (S) to secure
the position, then tighten nuts (P).
4. Re-adjust tension of a new belt after about 5
hours of operation to used belt specifications.
A
OIL AUGER DRIVE CHAIN
AUGER DRIVE CHAIN AND BELT
TENSION ADJUSTMENT