MacDon A40-D Pull-Type - Manual (Page 125)

SECTION 7 MAINTENANCE AND SERVICING
169000
123
Revision F
7.8.8.2 Adjusting Knife Hold-Down:
Stub Guards
a. Torque nuts (G) to 35 ft·lbf (46 N·m).
b. Turn adjuster bolts (H). Using a feeler gauge,
clearance from hold-down to knife section
should be 0.004–0.016 in (0.1–0.4 mm) at the
guide tip, and 0.004–0.040 in. (0.1–1.0 mm) at
rear of guide.
c. Torque nuts (G) to 53 ft·lbf (72 N·m).
d. After adjusting all hold-downs, run header at a
low engine speed, and listen for noise due to
insufficient clearance. Insufficient clearance will
also result in overheating of the knife
and guards.
0.004 – 0.016 in.
(0.1 – 0.4 mm)
0.004 – 0.040 in.
(0.1 – 1.0 mm)
G
H