Hydraulic System; Hydraulic Oil Cooler - MacDon M1170NT5 Operator's Manual

5.5.4 Hydraulic System

The M1170NT5 Windrower hydraulic system operates the windrower drive system, header lift, header drive systems,
cooling systems fan, and other lift 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.
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.
IMPORTANT:
Foreign material such as dirt, dust, and water is the major cause of damage in the hydraulic system.
If hydraulic system components must 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 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 hydraulic system components 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, to change oil, and to change oil filters as described in this
manual.
Contact your MacDon Dealer for all other service.

Hydraulic Oil Cooler

The hydraulic oil cooler is located inside the cooling box behind the radiator.
It should be cleaned with compressed air every 100 hours of operation. Daily cleaning may be required if operating in
heavy debris conditions. For instructions, refer to
215922
MAINTENANCE AND SERVICING
Figure 5.26: Hydraulic Pressure Hazard
Figure 5.27: Checking Hydraulic Leaks
5.9.2 Cleaning Cooler Module, page
253
284.
Revision A