MAINTENANCE/SERVICE
SICKLE AND SICKLE DRIVE (continued)
Sickle Drive Belt Tension
Check sickle drive belt tension after the first 5 hours
operation
and
every
100
hours
thereafter.
IMPORTANT: To prolong belt and drive life, do not
over-tighten belt. Operate at minimum tension
required to prevent slipping
or
excessive belt whip.
When
installing
a
new
belt,
never
pry
belt
over
pUlley. Loosen adjusting device sufficiently to allow
easy installation.
To adjust:
1.
Loosen two nuts (A).
2.
Turn adjusting bolt
(B)
to position pulley (C)
so
that a force
of
18
Jbs.
(80 N) deflects belt 3/4 inch
(20
mm)
at
mid-span.
3.
Tighten nuts (A).
4.
Re-adjust tension
of
a new belt after a short run-
in
period, (about 5 hours).
NOTE:
To
remove belt, slacken adjusting bolt (B)
and remove bolt-on panel
in
left
end
sheet at wobble
box.
Wobble Box Mounting Bolts
Tighten four wobble box mounting bolts (8) after
the
first 10 hours operation
and
every
100
hours
thereafter. Torque should
be
200 ft.lbs.
(270
N·m).
When tightening, start with
the
side mounting
bolts.
If slotted nut (C) securing drive arm
is
removed,
torque to 200 ft.lbs. (270 N'm) when replacing.
Wobble Box Lubricant
Check wobble box lubricant level before first
operation and every
100
hours thereafter.
To check:
1.
Raise header to a point where
the
wobble box
base is approximately level.
2. Remove breather
(A)
and
measure down.
Use
a
somewhat flexible measuring device
to
allow
insertion past internal components.
Oil
level
should
be
2.5
to
3.5 inches (65
to
90
mm)
from
top
of
hole.
3.
Add
as required. See "Recommended Lubricants"
for specified gear
lube
and
capacity of
box.
Change wobble box lubricant after the first
50
hours
and
every 1000 hours (or 3 years) thereafter.
46
SICKLE DRIVE
BELT
TENSION ADJUST.
WOBBLE
BOX MOUNTING BOLTS
CHECK
WOBBLE
BOX
Oil
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