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Section 7
HYDRAULIC SYSTEM7.2
A. CHECKING HYDRAULIC OIL LEVEL
The hydraulic oil level should be checked after the first 10
hours of operation. Thereafter, check the oil after every
200 hours of machine operation or monthly, whichever
occurs first.
- IMPORTANT -
If the oil level is consistently low, check for leaks
and correct immediately.
Wipe dirt and contaminants from around the 1.
reservoir cap. Remove the cap from the hydraulic oil
reservoir.
When the machine is "cold" (before operation), 2.
visually check the level of the hydraulic system oil.
Hydraulic system oil level should be in the middle of
the indicator window located on the left side of the
machine. See Figure 7-2. DO NOT overfill; (overfilling
the oil reservoir may cause oil seepage).
Clean the fill cap and install it onto the reservoir.3.
HYDRAULIC SYSTEM
OIL LEVEL
Hydraulic System Oil LevelFigure 7-2.
B. CHANGING HYDRAULIC OIL
The hydraulic system oil should be changed after the first
120 hours of machine operation and every 400 hours or
annually thereafter, whichever occurs first. The oil should
also be changed if the color of the fluid has become black
or milky. A black color and/or a rancid odor usually indicates
possible overheating of the oil, and a milky color usually
indicates water in the hydraulic oil.
- IMPORTANT -
The hydraulic system oil should be changed if you
notice the presence of water or a rancid odor to
the hydraulic oil.
Park the mower on a level surface and stop the
1.
engine.
Remove the three 1/4" filter guard screws and filter 2.
guard from both axles. See Figure 7-3. Clean any
loose debris around the perimeter of the filter.
REMOVE SCREWS AND
OIL FILTER GAURD
REMOVE OIL
FILTER
Hydraulic Oil Filter and Drain PlugFigure 7-3.
Place a suitable container under the hydraulic oil 3.
filters. Remove the cover from the left side tank to
gain access to the hydraulic expansion reservoir.
Remove the fill cap from the reservoir.
Remove the hydraulic filters from both axles and 4.
allow the fluid to drain into the container. Properly
discard the oil when the system has drained
completely. See Figure 7-3.
Once the hydraulic system has drained, install new 5.
hydraulic oil filters to both axles by hand, turn 3/4
to one complete turn after filter gasket contacts the
filter base.
Reinstall the filter guards and torque the screws to 6.
65 in/lbs.