PRE-DELIVERY INSPECTION
Form 169007 36 Revision D
D. SICKLE DRIVE BELT TENSION
IMPORTANT
To prolong belt and drive life, do not
over-tighten belt.
I. NON-TIMED DRIVE: SK and DK
a. Open endshield.
b. A force of 20 lbf (80 N) should deflect belt (A)
3/4 in. (18 mm) at mid-span.
c. Only if necessary, adjust tension as follows:
1. Loosen two bolts (B) on sickle drive mounting
bracket, and jam-nut (C).
2. Turn adjuster bolt (D) to move drive motor
until tension is achieved.
3. Tighten jam-nut (C), and bolts (B) on drive
mounting bracket.
d. Close endshield.
II. TIMED DRIVE: DK
a. Open endshield.
Timing Belts
b. A force of 6 lbf (27 N) should deflect timing belt
(E) 1/2 in. (13 mm) at mid-span.
c. Only if necessary, adjust tension as follows:
1. Loosen two nuts (F) on sickle drive belt idler
bracket.
2. Insert a long punch (or equivalent) into hole
(G) in idler bracket, and pry downward until a
force of 6 lbf (27 N) deflects timing belt
1/2 in. (13 mm) at mid-span (E).
3. Tighten nuts (F) on idler mounting bracket.
(continued next page)
G
LH SHOWN - RH OPPOSITE
E
LH SHOWN - RH OPPOSITE
C
B
D
A
LH SHOWN - RH OPPOSITE
F
E
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