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Maintenance
Regular Maintenance
CHECK HYDRAULIC OIL LEVEL
NOTE: Do not open the hydraulic reservoir unless oil
is being added.
1. Lift up the seat plate to gain access to the oil
reservoir compartment.
2. Look at the hydraulic oil reservoir (A, Figure 13)
and observe the oil level. When cold, the oil level
should be approximately 1/2” (1,3cm) below the
MAX. HOT OIL LEVEL line. The oil level should
never be above the MAX. HOT OIL LEVEL line.
3. If necessary, remove the reservoir cap (B, Figure
13) and add either Mobil 1, 15W-50 synthetic oil or
Castrol Syntec 5W-50 oil. DO
NOT use
conventional oils. Make sure area around the fill
neck of the reservoir is free of dust, dirt, or other
debris.
HYDRAULIC OIL FILTER CHANGE
Change Interval: Every 500 Hours
Filter Part Number: 5021357
NOTE: Removing the oil filter from the filter base will
drain the oil reservoir. Have a suitable container
ready to catch any spilled oil. Ferris recommends this
be a dealer-only service item.
1. Locate the hydraulic oil filter (A, Figure 14) behind
the oil reservoir.
2. Fill the new filter with oil. Lubricate the new filter
seal with a few drops of oil.
3. Remove the oil filter and quickly thread the new
filter onto the filter base until the gasket makes
contact, then tighten 3/4 of a turn more.
4. Refill reservoir with fresh oil to replace any oil lost
during filter change.
5. Raise the rear of the unit and secure with
jackstands. Chock the front wheels to prevent the
unit from rolling. Run the unit for several minutes
to purge any air from the hydraulic system and
check the hydraulic oil level.
IMPORTANT NOTE: Use caution after changing the
filter; air in the hydraulic system may affect the
responsiveness of the control levers. Repeat step 5
until the air is out of the system.
Figure 13. Checking Hydraulic Oil Level
A. Hydraulic Oil Reservoir
B. Reservoir Cap
B
A
A
Figure 14. Hydraulic Oil Filter Location
A. Oil Filter