SPECIFICATIONS & MAINTENANCE
2-17
Toro 30” Aerator Service Manual
2
Change Hydraulic Transmission Filters and
Fluid
Service Interval: After the rst 100 hours
Every 250 hours thereafter
1. Stop engine, wait for all moving parts to stop, and
remove key or spark plug wire(s). Engage parking
brake.
2. Locate the two lters under the transmissions.
Remove lter guards.
3. Carefully clean area around lters. It is important
that no dirt or contamination enter hydraulic system.
4. Unscrew lters to remove and allow oil to drain from
drive system.
Important: Before reinstalling new lters, apply
a thin coat of Toro Premium Hydro Oil on the
surface of the lters rubber seal.
Turn the lters clockwise until rubber seal contacts
the lter adapter then tighten the lter an additional
3/4 to 1 full turn.
5. Remove the vent plug on each transmission and ll
through expansion reservoir, when oil comes out of
vent reinstall plug.
Toro Premium Hydro Oil is recommended. Refer to
the chart for an acceptable alternative:
Hydro Oil Change Interval
Toro Premium Hydro Oil
(Preferred)
500 Hours
Mobil 1 15W50 250 Hours
Torque plugs to 20 Nm (180 in-lbs.). Continue to add
Toro Premium Hydro Oil until it reaches the full cold
line on the expansion reservoir.
6. Raise the rear of machine up and support with jack
stands (or equivalent support) just high enough to
allow drive wheels to turn freely.
Caution
Raising the unit for service or maintenance
relying solely on mechanical or hydraulic
jacks could be dangerous. The mechanical or
hydraulic jacks may not be enough support or
may malfunction allowing the unit to fall, which
could cause injury.
Do not rely solely on mechanical or hydraulic
jacks for support. Use adequate jack stands or
equivalent support.
7. Start engine and move throttle control ahead to 1/2
throttle position. Disengage parking brake.
Warning
Engine must be running and drive wheels must
be turning so motion control adjustment can
be performed. Contact with moving parts or hot
surfaces may cause personal injury.
Keep ngers, hands, and clothing clear of
rotating components and hot surfaces.
A. With the engine running, slowly move the
directional control in both forward and reverse
directions (5 to 6 times). Check the oil level, and
add oil as required after stopping the engine.
B. It may be necessary to repeat step A until all the
air is completely purged from the system. When
the transaxle operates at normal noise levels and
moves smoothly forward and reverse at normal
speeds, then the transaxle is considered purged.
Note: Do not change the hydraulic system oil
(except for what can be drained when
changing lter), unless it is felt the oil has
been contaminated or been extremely
hot. Changing oil unnecessarily could
damage hydraulic system by introducing
contaminants into the system.
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