MacDon R80 Rotary Disc - Manual (Page 72)

MAINTENANCE/SERVICE
Form # 169089
70
Model Year - 2009
7.9.5 Lifting Roll Drive Belt
The two lifting roll drive belts (A) are located
inside the drive compartment at the right hand
side of the header. Belt tension is set at the
factory and does not require adjustment.
NOTE
Rear shield not shown for clarity.
7.9.5.1 Replacement
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.
a. Lower header to ground, turn off engine, and
remove key.
b. Open RH drive shield (B).
c. Remove five bolts (C) and nuts and remove rear
shield (D).
d. Insert the end of a ½ inch drive socket wrench in
the square hole on the idler arm (E).
e. Rotate idler arm until belts (A) are loose.
f. Insert a bolt in hole (F) to hold idler.
g. Remove belts (A).
NOTE
Belts must be replaced in pairs.
NOTE
Check alignment of pulleys.
h. Install belts on pulleys ensuring they are in the
pulley grooves.
i. Rotate idler arm (E) so that bolt in (F) can be
removed.
j. Release load on idler and remove wrench.
k. Re-install rear shield (D) with bolts (C) and nuts.
l. Close
drive shield.
B
C
D
E
A
F
A