EN - 27
HYDRAULIC FLUID
Check Hydraulic Fluid Level
(Figure 12)
Check the system with the unit cold and
parked on a flat, level surface.
Then run the unit for about one minute and
recheck the levels.
Add Hydraulic Fluid
1. Remove the cap from the expansion
tank.
2. Fill the expansion tank with 15W-50
synthetic motor oil (Gravely p/n
00057100) or equivalent until oil level
reaches the cold fill line on the tank.
3. Install the expansion tank cap and then
purge the system. See Purging the
Hydraulic System on page 28.
Change Hydraulic Fluid and Filter
NOTICE: Change hydraulic fluid and filter
after the first 75 hours of operation and then
every 400 hours. Use 15W-50 synthetic
motor oil (Gravely p/n 00057100) or
equivalent.
1. Run the unit for a few minutes to warm
the hydraulic fluid, and then shut off the
engine, remove ignition key, and wait for
all moving parts to stop before servicing
unit.
2. Place container under oil filter to catch
oil.
3. Remove the filter cover from the
transaxle. Remove and discard the
o-ring from the cover.
4. Remove the bottom oil fill vent port plug
from the transaxle to drain completely.
5. After the oil has drained from the unit,
replace the bottom oil fill vent port plug
and then remove the oil filter.
WARNING: HYDRAULIC FLUID
can result in severe burns. Fluid in
hydraulic system can penetrate
skin and result in serious injury or
death.
Be sure to stop the engine before
doing any work on hydraulic parts.
Keep body and hands away from
pin holes or nozzles which expel
hydraulic fluid when under
pressure. Use paper or
cardboard, not hands, to search
for leaks.
Ensure all hydraulic fluid
connections are tight and all
hydraulic hoses and lines are in
good condition before applying
pressure to system.
FOREIGN FLUID INJECTED
INTO BODY can result in
gangrene. Fluid must be surgically
removed within a few hours by a
doctor familiar with this form of
injury.
Figure 11
1. Oil Fill/Dipstick
2. Oil Drain Hose
1
2
Figure 12
1. Cold Fill Indicator Mark
1
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