MacDon R116 Unloading And Assembly Instructions page 141

2. Raise the disc mower fully. Shut off the engine, and
remove the key.
3. Close lift cylinder lock-out valve (A) on each lift cylinder
by turning the handle to the closed position (90 degree
angle to the hose).
4. Loosen jam nut (B) away from the spring.
5. Turn adjuster bolt (C) to achieve the recommended
measurement (D) for the conditioner type. Refer to
Table 7.1, page 133.
•
Turn bolt clockwise (towards spring) to
increase float.
•
Turn bolt counterclockwise (away from spring) to
decrease float.
6. Tighten jam nut (B) against spring.
7. Measure the length of exposed thread (D) on the float
spring tension bolts.
NOTE:
Float settings indicated in the table at right are starting
point settings only. Float force should still be checked
with disc mower float and cutting angle set as planned
for use in the field.
8. Repeat Steps 4, page 133
opposite side of the disc mower.
9. Open lift cylinder lock-out valve (A) on each lift cylinder
by turning the handle to the open position (in line with
the hose).
10. To check float, lower the disc mower to cutting position,
grasp the front corner of mower, and lift; the weight
should feel like approximately 45 kg (100 lb.) at
both ends.
11. Repeat adjustment procedures until the desired weight
is achieved at both ends of the disc mower.
214713
PERFORMING PREDELIVERY CHECKS
to 7, page 133 on the
C
D
Figure 7.11: Lift Cylinder Lock-Out Valve, Jam
Nut, and Adjuster Bolt
Table 7.1 Float Setting Starting Point
Header Conditioner
Size
4.0 m
(13 ft.)
4.9 m
(16 ft.)
133
B
A
Length of Exposed
Type Thread
280–290 mm
None
(11 – 11-5/32 in.)
120–130 mm
Roll
(4-3/4 – 5-1/8 in.)
Right side:
145–155 mm
Finger
(5-3/4 – 6-1/8 in.)
Left side:
15–125 mm
Finger
(4-1/2 – 4-15/16 in.)
230–240 mm
None
(9 – 9-1/2 in.)
70–80 mm
Roll
(2-3/4 – 3-1/8 in.)
Right side:
95–105 mm
Finger
(3-3/4 – 4-1/8 in.)
Left side:
65–75 mm
Finger
(2-1/2 – 3 in.)
Revision A