SECTION 7 MAINTENANCE AND SERVICING
Form 169000 / 169040
156
Revision D
7.11.3 Auger Drive Belt: A30-S
7.11.3.1 Tension
IMPORTANT
To prolong drive life, do not over-tighten
belts. Belt slippage is used to protect the
auger in an overload situation.
NO
T
E
Minor belt tension adjustments may be
made without affecting chain tension.
For major adjustments, like after re-
positioning reel or auger, adjust chain
tension before belt tension.
Adjust auger drive belts (A) tension as follows:
CAUTION
Stop engine, and remove key from ignition
before leaving Operator's seat for any
reason. A child or even a pet could engage
an idling machine.
a. Open LH endshield.
b. Loosen three bolts (B).
c. Loosen jam-nut on adjuster bolt (C).
d. Turn adjuster bolt (C) so that each belt deflects
3/16 in. (4 mm) at mid-span when a load of
8 - 12 lbf (35 - 40 N) is applied to each belt.
e. Tighten bolts (B).
f.
Tighten jam-nut at (C).
g. Close shield before engaging header.
7.11.3.2 Removal
a. Open LH endshield.
b. Remove chain (D) from small sprocket as
follows:
1. Loosen three bolts (B).
2. Loosen jam-nut on adjuster bolt (E), and
turn adjuster bolt (E) to loosen chain (D).
3. Remove chain from small sprocket.
c. Loosen jam-nut on adjuster bolt (C).
d. Turn adjuster bolt (C) to loosen auger drive belts
(A).
e. Remove belts (A).
7.11.3.3 Installation
IMPORTANT
Auger drive belts are a matched set.
Replace both drive belts even if only one
needs replacing.
a. Position auger drive belts (A) as shown.
b. Install auger drive chain (D) as follows:
1. Locate chain (D) onto small sprocket.
2. Turn adjuster bolt (E) to tighten chain.
Deflection at (D) should be 1/4 in. (6 mm).
3. Tighten jam-nut on adjuster bolt (E)
c. Turn adjuster bolt (C) so that each belt deflects
3/16 in. (4 mm) at mid-span when a load of
8 - 12 lbf (35 - 40 N) is applied to each belt.
d. Tighten jam-nut on adjuster bolt (C), and the
three bolts (B).
NOTE
Re-adjust tension of a new belt after
about 5 hours of operation.
e. Close
endshield.
C
B
A
E
B
A
D
C