Checking And Adjusting Knife Hold-Downs; Checking Pointed Guard Hold-Downs - MacDon D65 Operator's Manual

8. Remove two nuts (A) and bolts attaching guard (B), hold-
down (C), and adjuster bar (D) to the cutterbar.
9. Remove guard (B), plastic wearplate (if installed), hold-
down (C), and adjuster bar (D).
10. Position the plastic wearplate (if applicable), replacement
guard (B), adjuster bar (D), and hold-down (C) onto the
cutterbar. Install bolts, but do NOT tighten.
IMPORTANT:
Ensure center guard (B) (right of the cutterbar split) has
offset cutting surfaces.
IMPORTANT:
Hold-down (C) must accommodate the two overlapping
knives at the center guard location. Ensure the proper
replacement guard is installed at this location.
11. Check and adjust the clearance between the hold-down
and the knife. For instructions, refer to
Adjusting Knife Hold-Downs, page

Checking and Adjusting Knife Hold-Downs

NOTE:
Align guards prior to checking and adjusting hold-downs. Refer to
Perform daily inspections to ensure knife hold-downs are preventing knife sections from lifting off guards while permitting
knife to slide without binding.
Proceed to the applicable topic:
•
Checking Pointed Guard Hold-Downs, page 148
•
Checking Stub Guard Hold-Downs, page 151

Checking Pointed Guard Hold-Downs

This procedure is applicable to headers with pointed guards.
DANGER
To prevent bodily injury or death from the unexpected startup of the machine, always stop the engine and remove the
key before adjusting the machine.
Measure the clearance between the hold-downs and knife sections as follows:
1. Shut down the engine, and remove the key from the ignition.
2. Check the guard alignment and adjust it as required. Refer to
214327
MAINTENANCE AND SERVICING
Checking and
148.
148
A
D
B
Figure 5.44: Center Guards
Adjusting Knife Guards, page
Adjusting Knife Guards, page
C
142.
142.
Revision B