MacDon M155 Operators Manual - Manual (Page 375)

MAINTENANCE AND SERVICING
5.7.9 Hydraulic System
The M155 windrower hydraulic system provides oil pressure for the windrower drive system, the header lift,
and drive systems.
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.
Figure 5.190: Hydraulic Pressure Hazard
WARNING
• Use a piece of cardboard or paper to search
for leaks.
• 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.
Figure 5.191: Checking Hydraulic Leaks
IMPORTANT:
• Dirt, dust, water, and foreign material are the major causes of trouble developing in the hydraulic
system.
• If the hydraulic system should be disconnected for service, protect the ends of hoses, tubing,
and ports of components from contamination with clean, lint-free towels, or clean plastic bags.
• Before installing any replacement hose, flush the inside of it with unused diesel fuel or unused
commercial petroleum cleaning solvent for ten seconds minimum. Do NOT use water, water
soluble cleaners, or compressed air.
• The components in this system are built to very close tolerances and have been adjusted at
the factory. Do NOT attempt to service these components except to maintain proper oil level,
change oil and filters, and to adjust relief pressures as described in this manual. See your
MacDon Dealer for all other service.
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