MacDon R80 Rotary Disc - Manual (Page 66)

MAINTENANCE/SERVICE
Form # 169089
64
Model Year - 2009
7.9 HEADER DRIVE
7.9.1 Hydraulic Motor
The main drive hydraulic motor does not require
normal maintenance or servicing. If repairs are
required, it should be removed and serviced at
your dealer.
7.9.1.1 Removal
DANGER
Stop engine and remove key from ignition
before leaving operator's seat for any
reason. A child or even a pet could engage
an idling machine.
a. Lower header to ground, turn off engine, and
remove key.
b. Remove nut, bolt and bracket (A). Open shield
to access nut.
c. Remove bolts on split flange fittings and
disconnect supply and return hoses at (B).
Install plugs on motor and cap off hydraulic
lines.
d. Disconnect case drain hose (C) from fitting and
install caps on tube end and motor fitting.
e. Remove four bolts (D) and remove motor (E).
f. Cover gearbox opening (F) with a rag or plastic.
7.9.1.2 Installation
a. Remove covering from gearbox (F) opening.
b. Place motor (E) on gearbox (F) flange.
c. Install four bolts (D). Torque to 103 ft·lbf (140
N·m).
d. Remove caps from motor fitting and case drain
line and re-connect to motor at (C).
e. Remove plugs from motor and caps from supply
and return lines and re-connect lines to motor at
(B). Torque bolts to 32 ft·lbf (43 N·m).
f. Secure hydraulic lines with bracket (A), bolt and
nut.
7.9.2 Converging Drum Motors – Grass
Seed Header
The converging drum hydraulic motors do not
require normal maintenance or servicing. If
repairs are required, they should be removed
and serviced at your dealer. Refer to the
Technical Service Manual available through your
dealer.
F
A
D
E
B
C