Toro 74408 - Drive System Maintenance; Checking the Tire Pressure

• Main, F1-20 amp , blade-type
• Charg e circuit, F2-20 amp , blade-type
1. Raise the seat to g ain access to the fuses on the
left side of the mac hine ( Figure 38 ).
2. T o re place the fuses , pull out on the fuse to
remo v e it.
3. Install a new fuse ( Figure 38 ).
Figure 38
1. Fuse location 3. Charge circuit, 20 amp
2. Main, 20 amp
Drive System
Maintenance
Checking the Tire Pressure
Chec k the pressure at the v alv e stem after ev er y
50 operating hours or monthly , whic hev er occurs
first ( Figure 39 ).
Maintain the air pressure in the rear tires at 13 psi
(90 kP a). Unev en tire pressure can cause unev en
cut. Chec k the tires when they are cold to g et the
most accurate pressure reading .
Note: T he front tires are semi-pneumatic tires
and do not require air pressure maintenance .
Figure 39
Adjusting the Caster Pivot
Bearing
Chec k after ev er y 500 operating hours or at
storag e , whic h ev er comes first.
1. Diseng ag e the PTO , mo v e the motion control
lev ers to the neutral loc k ed position and set
the parking brak e .
2. Stop the engine , remo v e the k ey , and w ait for
all mo ving par ts to stop before lea ving the
operating position.
3. R emo v e the dust cap from caster and tighten
loc k n ut ( Figure 40 ).
4. Tighten the loc kn ut until the spring w ashers
are flat and then bac k off a 1/4 tur n to properly
set the pre-load on the bearings ( Figure 40 ).
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