Servicing The Hydraulic System - Toro 22304 Operator's Manual

Servicing the Hydraulic
System
Replacing the Hydraulic Filter
Change the hydraulic filter:
After the first 8 operating hours.
After every 200 operating hours.
1. Park the traction unit on a level surface, to
ensure that fuel tank drains completely.
2. Place drain pan under filter, remove the old
filter, and wipe the filter adapter gasket surface
clean.
3. Apply a thin coat hydro fluid to the rubber
gasket on the replacement filter (Fig. 22).
4. Install a replacement hydraulic filter onto the
filter adapter. Tighten it clockwise until the
rubber gasket contacts the filter adapter, then
tighten the filter an additional 1/2 turn (Fig. 22).
IMPORTANT: Do not substitute an
automotive oil filter or severe hydraulic
system damage may result.
1
2
Figure 22
1. Hydraulic filter
2. Gasket
5. Clean up any spilled fluid.
3
3. Adapter
6. Start the engine and let run for about two
minutes to purge air from the system.
7. Stop the engine and check for leaks.
8. Check the fluid level in the hydraulic tank and
add enough oil to raise the level to mark on
dipstick.
Changing the Hydraulic Fluid
Change the hydraulic fluid:
After the first 8 operating hours.
After every 400 operating hours.
1. Park the traction unit on a level surface.
2. Place a large drain pan under the traction unit
that can hold at least 17 gal. (67 l).
3. Remove the drain plug from the bottom of the
hydraulic tank and allow the fluid to completely
drain out.
4. Install the drain plug.
5. Fill the hydraulic tank with approximately 15
gal. (57 L) of Toro Hy-Pro, Mobil Fluid 424, or
equivalent (refer to Checking Hydraulic Fluid on
page 15).
IMPORTANT: Do not substitute automotive
oil or severe hydraulic system damage may
result.
Note: Dispose of used oil at a certified
recycling center.
Checking Hydraulic Lines
After every 100 operating hours, check the hydraulic
lines and hoses for leaks, loose fittings, kinked lines,
loose mounting supports, wear, weather and chemical
deterioration. Replace all moving hydraulic hoses
every 1500 hours or 2 years, whichever comes first.
Make necessary repairs before operating.
Maintenance
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