MacDon PW7 Pick-Up Header - Manual (Page 76)

SECTION 7 – SERVICE
Form 169149 Revision E 70
n) Reattach the scroll plate guard with the 1/4-
inch x 1/2-inch bolts and washers.
o) Install the gearbox unit back to the frame of
the Rake-Up with the four 3/8 inch x 1 1/4
inch bolts, and M10 spring lock washers. Be
sure that all finger bar drive arms are facing
toward the opposite end of the machine, and
that the drive belt shield is reattached.
p) One by one attach the finger bars to the drive
and idler arms using the 5/16-inch x 1-inch
bolts, M8 spring lock washers and 3/8-inch
fender washers. Be sure all surfaces of the
threads are clean and degreased and apply
Loctite
® 603 liberally on both surfaces.
Tighten all bolts installed through the finger
bar holes. Finger tight all bolts installed
through the finger bar slots.
q) Reinstall the drive belt pulley. Be sure to
install the key and tighten the setscrew.
r) Rotate the finger bars by the drive pulley one
revolution and tighten one set of the
remaining four bolts to the finger bar.
s) Repeat step (p) another five times completing
the finger bar installation. This procedure
will seat each finger bar in its proper
position.
t) Install the drive belt.
u) Install the Drive Belt shield with the four
5/16 inch x 3/4-inch truss bolts.
v) Disengage the hold down locks.
Crown Gear Bearing Installation:
a) Press in the output spacer and two
bearings into the crown gear housing.
Apply pressure to outer ring. Pressure
applied to the inner ring could damage
the bearing.
b) Install the outer snap ring into the crown
gear shaft housing. Be sure that it is
seated in the groove properly.
Pinion Gear Bearing Installation:
a) Press on the two bearings and long input
spacer onto the pinion shaft until the
bearings bottom out. Apply pressure to
the inner ring on the bearing. Appling
pressure to the larger ring could damage
the bearing.
b) Install the External Snap Ring into the
groove on the pinion gear.