MacDon R113 - Checking Roll Gap; Adjusting Roll Gap (Steel Rolls)

214713 140 Revision A
7.11 Checking Roll Gap
Check factory-set roll gap as follows:
DANGER
To avoid bodily injury or death from unexpected startup of machine, always stop engine and remove key
from ignition before leaving operator's seat for any reason.
1. Lower the disc mower to the ground.
2. Stop the engine, and remove the key from the ignition.
1021444
A
Figure 7.21: Roll Gap Adjustment
3. Steel Rolls: The length of thread (A) extending above
the jam nut on the adjustment rods can be used as an
approximation of roll gap, but does NOT provide
consistent roll gap measurements. To ensure roll gap is
at the factory setting, refer to 7.11.1 Adjusting Roll Gap
(Steel Rolls), page 140.
4. Polyurethane Rolls: Insert a feeler gauge between
rolls from either front or rear of header. Factory setting
is 3 mm (1/8 in.). If adjustments are required, refer to
7.11.2 Adjusting Roll Gap (Polyurethane Rolls), page
141.
7.11.1 Adjusting Roll Gap (Steel Rolls)
The length of thread extending above the jam nut on the adjustment rods can be used as an approximation of roll
gap but does NOT provide consistent roll gap measurements. To ensure roll gap is at the factory setting, follow the
procedure below:
DANGER
To avoid bodily injury or death from unexpected startup of the machine, always stop the engine and
remove the key from the ignition before leaving the operator’s seat for any reason.
1. Lower the disc mower to the ground.
2. Stop the engine, and remove the key from the ignition.
PERFORMING PREDELIVERY CHECKS