New Holland 499 Operator's Manual page 89

SECTION 4 - MAINTENANCE
The front of the clip should be adjusted by bending it up
or down to obtain a clearance of less than 0.50 mm
(0.020") between the front of the clip and the knife
section at 4, Figure 40.
The knife assembly must move freely after the clips are
adjusted.
WARNING
Disengage the PTO, turn off the tractor engine
and remove the key. Wait for all movement to
stop before leaving the operator's position.
Never adjust, lubricate, clean or unplug machine
with the engine running. Failure to comply could
result in death or serious injury.
1
1
Hold Down Clips for Stub Guards
The stub guards require a hold down clip, 1, at each
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guard. There is no lip on the guards to assist the hold
down clips in keeping the knife close to the guard ledger
41
surface.
NOTE: Be sure a 3 mm (0.120 ) shim is installed
"
between the center guard and cutter bar and also
between all the guards to the left of center and the cutter
bar.
IMPORTANT: Check and adjust the guard alignment
before checking the hold down clip adjustment.
The clip should hold the knife in position without
binding. Adjust the clearance between the clip and
guard by using shims, 1, under each clip. The
clearance between the clip and knife section should
1
be 0.12-0.38 mm (0.005" - 0.015") at 2. Add or
remove shims as required to adjust the clearance.
0.25 mm (0.010"), 0.9 mm (0.036"), 2.2 mm (0.090")
and 3.1 mm (0.0120") shims are available.
NOTE: The center hold-down clip and all hold-down
clips to the right of the center clip will require an
additional 3 mm (0.120 ) shim compared to the left
"
clips.
42
4-29