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MAIINTEINAINCE/SERVICE
ROLLS
AND
ROLL DRIVE (continued)
Roll Drive
Chain
Removal
,
.
Raise
header. Stop
engine,
remove
I",ey
and
engage
lift
cylind
er
stops.
2. Remove bolts securing upper
cover
(A) to
chain
case.
Loosen clamp bolt
(8) and
slide
the cover down
the drive shaft shield.
3.
Remove bolts securing lower
cover (C) and
remove
cover
.
4.
Loosen
two bolts
(0)
and nut
(L)
at
chain
tensioner.
5. Rotate
tensioner
cam
cQunter-clc)ckwise.
using a 15/16 wrench on welded nut
(E).
6.
Remove the chain
tensioner
sprocket
from
,
inside chain
case.
NOTE:
Be careful
not
to lose the three
washers between
the
sprocket
and
inner
cam
disc.
7.
Rotale
upper
or
lower
roll universal joint
to
position
chain
connector link
(F)
as
shown.
8.
Remove connector
link (F).
9.
Turn
lower roll u-joint
to rotate
lower
sprocket
(G) counter-clockwise until chain is frE!e of the
lower
sprocket.
, O. Uft excess chain up and bring it out
of
the
chain
case through the upper cover
~lole
.
, 1. Turn sickle drive pulley at left
end
of
header
to rotate driver sprocket
(H)
clockwise until
chain is
free
of
driver
sprocket.
58
REMOVE COVERS
RELEASE CHAIN
TEN SION
F
~
G
h
REMOVE
CHAIN
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