SECTION 7 MAINTENANCE AND SERVICING
Form 169000 / 169040
127
Revision D
7.8.8 Sickle
Hold-Downs
Check daily that sickle hold-downs are set to
prevent sickle sections from lifting off guards,
but still permit sickle to slide without binding.
NOTE
Guards should be aligned prior to
adjusting hold-downs.
CAUTION
Stop engine, and remove key from ignition
before leaving Operator's seat for any
reason. A child or even a pet could engage
an idling machine.
7.8.8.1
Sickle Hold-Down Adjustment: Pointed
Guards
Single Knife
a. Turn adjuster bolt (A). Using a feeler gauge,
clearance from hold-down to sickle section
should be 0.004 - 0.024 in. (0.1 - 0.6 mm).
NOTE
For larger adjustments, it may be
necessary to loosen bolts (B), turn
adjuster bolt (A), and then re-tighten
nuts (B).
Double Knife
a. Torque nuts (C) to 35 ft·lbf (46 N·m).
b. Turn adjuster bolts (D). Using feeler gauge,
clearance from hold-down to sickle 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 (C) 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 sickle and
guards.
A
B
0.004 - 0.024 in.
(0.1 - 0.6 mm)
0.004 - 0.016 in.
(0.1 - 0.4 mm)
0.004 - 0.040 in.
(0.1 - 1.0 mm)
C
D
