MacDon R85 Rotary Disc 13 Foot Pull-Type - Manual (Page 87)

MAINTENANCE AND SERVICING
Form 169454
85
Revision A
7.10.5 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.
7.10.5.1 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. If machine is connected to the tractor, lower
header to ground, turn off engine, and remove
key.
b. Disconnect case drain hose (A) from motor (B),
and install caps on hose end and motor port.
c. Disconnect pressure and return hoses at
threaded fittings (C). Do not remove bolted
fittings. Install caps and plugs on open fittings.
d. Remove four bolts (D), and remove motor.
e. Cover gearbox opening (E) with a rag or plastic.
7.10.5.2 Installation
a. Remove covering from gearbox (E) opening.
b. Place motor (B) on gearbox (E) flange. See
illustration opposite.
c. Install four bolts (D). Torque to 103 ft·lbf
(140 N·m).
d. Remove caps from motor ports and hoses, and
re-connect hoses to motor.
7.10.6 Hoses and Lines
Check hydraulic hoses and lines daily for signs
of leaks.
WARNING
• Avoid high-pressure
fluids. Escaping fluid
can penetrate the
skin causing serious
injury.
• Relieve pressure before disconnecting
hydraulic lines. Tighten all connections
before applying pressure. Keep hands
and body away from pin- holes and
nozzles which eject fluids under high
pressure.
• If ANY fluid is injected into the skin, it
must be surgically removed within a few
hours by a doctor familiar with this type
of injury or gangrene may result.
• Use a piece of cardboard or paper to
search for leaks.
IMPORTANT
Keep hydraulic coupler tips and
connectors clean. Dust, dirt, water and
foreign material are the major causes of
hydraulic system damage.
DO NOT attempt to service hydraulic
system in the field. Precision fits require
WHITE ROOM CARE during overhaul.
A
C
D
B
E