Change Hydraulic Transmission Filters And Fluid - Toro 23518 Operator's Manual

Important: Apply a thin coat of oil on the surface
of the rubber seal.
Turn filter clockwise until rubber seal contacts the
filter adapter, then tighten the filter an additional 2/3
to 3/4 turn.
5. Reinstall the hose and torque to 50 N-m (37 ft-lb).
6. Add AW-32 hydro oil until the level reaches the cold
fill line located on the reservoir tank. Start engine and
raise and lower the tines. Lower the tines to the ground
and refill the reservoir to the cold fill line.
Change Hydraulic
Transmission Filters and
Fluid
Service Interval: After the first 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 filters under the transmissions. Remove
filter guards.
3. Carefully clean area around filters. It is important that
no dirt or contamination enter hydraulic system.
4. Unscrew filters to remove and allow oil to drain from
drive system.
Important: Before reinstalling new filters, apply
a thin coat of Toro Premium Hydro Oil on the
surface of the filters rubber seal.
Turn the filters clockwise until rubber seal contacts the
filter adapter then tighten the filter an additional 3/4
to 1 full turn.
5. Remove the vent plug on each transmission and fill
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
Toro Premium Hydro Oil
(Preferred)
Mobil 1 15W50
Torque plugs to 244 N-m (180 in-lb). 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.
Change Interval
500 Hours
250 Hours
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 fingers, 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 filter), 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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