Toro Z-Master 250 Series Operator's Manual page 45

Replacing the Hydraulic Filter
Change the hydraulic filter:
After the first 8 operating hours.
After every 200 operating hours.
1. Disengage the power take off (PTO) and turn the
ignition key to "OFF" to stop the engine. Move
controllers to neutral locked position and apply
parking brake. Remove the key.
IMPORTANT: Do not substitute automotive
oil filter or severe hydraulic system damage
may result.
2. Remove hydro cap and temporarily cover
opening with a plastic bag and rubber band to
prevent all hydro fluid from draining out.
3. Place drain pan under filter, remove the old filter
and wipe the filter adapter gasket surface clean
(Fig. 35).
Figure 35
1. Hydraulic filter
4. Apply a thin coat hydro fluid to the rubber
gasket on the replacement filter (Fig. 36).
5. Install replacement hydraulic filter onto the filter
adapter. Do not tighten.
6. Remove plastic bag from tank opening and allow
filter to fill with hydro fluid.
7. When fluid overflows filter turn the oil filter
clockwise until the rubber gasket contacts the
filter adapter, then tighten the filter an additional
1/2 turn (Fig. 36).
8. Clean up any spilled fluid.
9. Start engine and let run for about two minutes to
purge air from the system. Stop the engine and
check for leaks. If one or both wheels will not
drive, refer Bleeding Hydraulic System, page 44.
10. Check fluid level in hydraulic tank and add to
raise level to cover bottom of screen. DO NOT
OVER FILL.
1. Hydraulic filter
2. Gasket
1
m–3291
Maintenance
1
Figure 36
3. Adapter
3
2
m–1256
43