MacDon M155 - Checking and Filling Hydraulic Oil

MAINTENANCE AND S ERVICING
WARNING
• Use a piece of cardboard or paper to search
for leaks.
•IfANYfluid is injected into the skin, it must
be surgically removed w ithin a few hours by a
Doctor familiar with this type of injury or gangrene
may result.
Figure 5.183: Checking Hydraulic Leaks
IMPORTAN T
:
Foreign m
aterial such as dirt, dust, and water is the major cause of trouble in the hydraulic system.
If hydrau
lic system components must be disconnected for service, protect the ends of hoses, tubing, and ports of
componen
ts from contamination with clean, lint-free towels, or clean plastic bags.
Before in
stalling any replacement hose, flush the inside with unused diesel fuel or unused commercial petroleum
cleanin
g solvent for ten seconds m inim um . D o NOT use water, water soluble cleaners, or compressed air.
The hydr
aulic system components are built to very close tolerances and have been adjusted at the factory. Do
NOT atte
mpt to service these components except to maintain proper oil level, change oil and filters, and to
adjust r
elief pressures as described in this manual.
See you
r MacDon Dealer for all other service.
Checking and Filling Hydraulic Oil
DANGER
To avoid bodily injury or death from unexpected startup of the machine, always stop the engine and remove
the key from the ignition before leaving the operator ’s seat for any reason.
1. Park windrower on level ground and lower header and reel so that lift cylinders are fully retracted.
2. Stop the engine and remove the key.
3. Open the hood, refer to 5.2.1 Opening Hood (Lower Position), page 306.
147649 401 Revision A