Disc Maintenance - MacDon R80 Operator's Manual

7.8.3

Disc Maintenance

Check daily that discs are not damaged by rocks
or worn excessively from abrasive working
conditions. They are interchangeable and a disc
can be moved to a spindle that rotates in the
opposite direction, as long as it is in a useable
condition. The discs are not repairable and
must be replaced if severely damaged or worn.
IMPORTANT
If holes appear in a disc, replace the disc
immediately. Do not attempt to repair the
discs. Always use factory replacement
parts.
7.8.3.1 Disc Removal
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. Open cutterbar door(s).
CAUTION
Exercise caution when working around the
blades. Blades are sharp and can cause
serious injury. Wear gloves when handling
blades.
b. Place a block of wood between two discs to
prevent disc rotation while loosening blade bolts.
Form # 169089
MAINTENANCE/SERVICE
c. Remove four bolts (A) on disc cover (B) and
d. If removing #2 disc;
52
C
remove cover and disc (C).
Standard Header
E
D
16FT SHOWN – 13 FT SIMILAR
1. Remove bolts (D) and remove deflector (E).
2. Remove disc (F).
Grass Seed Header – 16 Ft Only
G
H
K
J
M
1. Remove bolts (G) and remove cover (H).
2. Remove four bolts (J) and remove drum (K)
and plate (L).
3. Remove disc (M).
B
A
F
L
(continued next page)
Model Year - 2010