Mower Deck Maintenance; Leveling The Mower - Toro 74408 Operator's Manual

Important: Before reinstalling new
filters, apply a thin coat of oil on the surface
of the filters rubber seal.
6. Install the new filters clockwise until rubber
seal contacts the filter adapter and then tighten
the filter an additional 3/4 to 1 full turn.
7. Remove the vent plug on each transmission
and fill through the hydraulic tank, when oil
comes out of vent reinstall plug. Torque the
plugs to 180 in-lb (244 N⋅m).
8. Add oil until it reaches the cold line on the
hydraulic tank (Figure 49).
9. Raise the rear of machine up just enough
to allow the drive wheels to turn freely and
support it with jack stands.
10. Start the engine and move the throttle control
ahead to the 1/2 throttle position. Disengage
the parking brake.
11. With the bypass valve open and the engine
running, slowly move the directional control in
both forward and reverse 5 or 6 times.
12. With the bypass valve closed and the engine
running, slowly move the directional control
in both forward and reverse directions 5 to 6
times. Stop the engine and check the oil level,
and add oil as required to the hot line.
13. Repeat items 11 and 12 as necessary 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 purged.
Important: Do not change 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 the oil unnecessarily
could damage the hydraulic system by
introducing contaminates into the system.
Figure 50
1. Left rear tire
2. Hydraulic lter
Mower Deck
Maintenance

Leveling the Mower

Important: There are only three measuring
positions needed to level the mower.
1. Position mower on a flat surface.
2. Disengage the PTO, move the motion control
levers to the neutral locked position and set
the parking brake.
3. Stop the engine, remove the key, and wait for
all moving parts to stop before leaving the
operating position.
4. Check tire pressure of the rear tires. If needed,
adjust to 13 psi (90 kPa)
39
3. Vent plug