Macdon R85 Rotary Disc 16 Foot Self-Propelled Windrower H User Manual download pdf (Page 141)

MAINTENANCE AND SERVICING

8. Remove nut (A).

9. Remove shoulder bolt (B) and blade (C).

10. Install new or reversed blade (C) with shoulder bolt (B)

onto disc.

NOTE: Ensure shoulder bolt is fully engaged into

blade before tightening nut.

NOTE:

Ensure blade

is insta lled co rrec tly to suit

rotation of d

isc. Refer to Figures

• 7.29: Counte

rclockwise Disc Rotation

Direction, p

age 131

• 7.30: Clock

wise Disc R otation

Direction,

page 131

If you are un

sure which direction the

spindle rot

ates, see Section 7.6.3

Direction

of Spindle Rotation, page 129.

11. Install nut (A). Tighten nut to 100 ft·lbf (135 N·m).

12. Remove block of wood (if used).

WARNING

Ensure cutterbar is completely clear of foreign

objects. These objects can be ejected with

considerable force when the machine is

started and may result in serious injury or

machine damage.

13. Close cutterbar doors. See Section 5.5 Cutterbar

Doors, page 31 .

Figure 7.32

Inspecting Cut

terbar Hardware

Check blade attachment hardware each time blades are replaced. See Replacing the Cutter Blades, page 132 for

replacement procedure.

Check bolts for wear or damage and replace bolt if:

• Bolt has been removed and installed ﬁve times.

• Head is worn ﬂush with bearing surface of blade.

• Diameter of bolt neck is worn out of speciﬁcation.

•Boltiscracked.

• Bolt is v isib ly distorted.

• Evidence of interference with adjacent parts.

Check nuts for wear or damage and replace nut if:

• Worn height is less than half total height.

• Nut is cracked.

• Nut has been removed and installed ﬁve times.

169457 1

Rev. F

1 2 ... 136 137 138 139 140 141 142 143 144 145 146 ... 181 182

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Macdon R85 Rotary Disc 16 Foot Self-Propelled Windrower H User Manual Page 141

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