Toro 23518 - Hydraulic System Maintenance; Check Auxiliary Hydraulic Oil Level; Check Hydraulic Transmission Oil Level; Change Auxiliary Hydraulic Reservoir Fluid and Filter

SPECIFICATIONS & MAINTENANCE
2-16
Toro 30” Aerator Service Manual
2
Hydraulic System Maintenance
Check Auxiliary Hydraulic Oil Level
Service Interval: Every 50 hours
1. Lower the tines to the ground.
2. Stop engine and wait for all moving parts to stop,
and remove key. Engage parking brake.
3. Clean area around hydraulic reservoir cap and
remove cap. Oil level should be to the top of the
bafe inside the tank. If not, add oil. Use Toro Hydro
Oil. Replace hydraulic reservoir cap and tighten until
snug. Do not over-tighten.
Note: The bafe is labeled Hot and Cold. The oil
level varies with the temperature of the oil.
The Hot level shows the level of oil when it
is at 107°C (225°F). The Cold level shows the
level of the oil when it is at 24°C (75°F). Fill
to the appropriate level depending upon the
temperature of the oil. For example: If the oil
is about 65°C (150°F), ll to halfway between
the Hot and Cold levels. If the oil is at room
temperature (about 24°C (75°F)), ll only to
the Cold level.
Check Hydraulic Transmission Oil Level
Service Interval: Every 50 hours
1. Stop engine and wait for all moving parts to stop,
and remove key. Engage parking brake.
2. With the unit cold, check the expansion tank and if
necessary add Toro Hydro Oil to the Full Cold line.
Change Auxiliary Hydraulic Reservoir Fluid
and Filter
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. Carefully clean area around the front of the auxiliary
pump and ll cap; also clean around the lter. It
is important that no dirt or contamination enter
hydraulic system.
3. Unscrew the suction hose from the pump tting,
clean around the pump tting, and allow oil to drain.
4. Unscrew the lter to remove and allow oil to drain.
Important: Apply a thin coat of oil on the surface of
the rubber seal.
Turn lter clockwise until rubber seal contacts the
lter adapter, then tighten the lter an additional 2/3
to 3/4 turn.
5. Reinstall the hose and torque to 50 Nm (37 ft-lbs.).
6. Add Toro Hydro Oil until the level reaches the cold
ll line located on the reservoir tank. Start engine
and raise and lower the tines. Lower the tines to the
ground and rell the reservoir to the cold ll line.