MacDon R80 Rotary Disc - Manual (Page 81)

MAINTENANCE/SERVICE
Form # 169089
79
Model Year - 2009
NOTE
Steps g. to i. applicable to 16 ft header
only.
g. Install hourglass deflector drive belts (N) onto
drive pulley (O).
h. Turn adjuster bolt (M) to tighten belts (N). Apply
a force of 51 lbf (22 N) to each deflector drive
belt at mid-span. Deflection of each belt should
be 0.12 in. (3 mm)
i. Tighten nuts (K) and jam-nut (L).
j. Locate conditioner drive belt (G) onto forward
pulley (J).
k. Route belt over idler (F) ensuring it is properly
located on pulley (H).
NOTE
Check alignment of pulleys (H) and (J).
l. Tension drive belt (G). Refer to Section 7.9.3.1
Tension Adjustment.
m. Position speed sensor bracket (E) onto gearbox
and install bolts (D). Adjust gap (Z) between
speed sensor and pulley (J) to 0.08 in (2 mm).
Tighten bolts.
n. Re-install cover (A2) with three bolts (A1).
o. Position hydraulic motor (A) on gearbox and
install four bolts (W). Torque bolts to 103 ft·lbf
(140 N·m).
p. Secure hydraulic lines to header with clamp (Y),
bolt, and nut.
q. Close shield.
L
M
N
K
O
16 FT
G
J
F
H
D
Z
E
J
Y
W
A
A2
A1