Conditioner Drive Belt - MacDon R80 Operator's Manual

7.9.5 Conditioner Drive Belt

The conditioner drive belt is located inside the
drive compartment at the left hand side of the
header.
DANGER
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.
7.9.5.1 Checking Belt Tension
IMPORTANT
Belt tension acts as an overload protection
mechanism to prevent damage to the
gearboxes or roll drivelines in the event
the rolls reach peak load. Check tension
at beginning of each operating season.
a. Raise header fully, shut off engine and remove
key.
b. Engage lift cylinder lock-out valves.
c. Open LH drive shield.
d. Measure the length of
the spring (A)
shown. It should be
within the dimensions
in the following table. If
required, adjust tension
as per the following
section.
Form # 169053
MAINTENANCE/SERVICE
as
X
NUMBER OF VISIBLE COILS
7.9.5.2 Tension Adjustment
D
a. Loosen jam-nut (B).
b. Turn adjuster bolt (C) to fully release spring (A)
tension.
c. Turn adjuster bolt (C) by hand to take up all belt
(D) slack and clearance at hook end of the
spring. Spring must be snug but not stretched.
B
A
d. Back off jam-nut (B) 13/16 inch (20 mm) from
the end of the spring insert (E).
e. Tighten adjuster bolt (C) with a wrench to stretch
spring until jam-nut (B) contacts the spring insert
(E).
f. Tighten jam-nut (B) against spring insert.
g. Close drive shield.
94
MEASUREMENT 'X'
7.75-8.15 inches
23
(197-207 mm)
8.11-8.5 inches
24
(206-216 mm)
B
C
A
E
Model Year - 2010
B