Toro 74408TE - Drive System Maintenance; Checking the Tire Pressure; Adjusting the Caster Pivot; Bearing

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 41 ).
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 41
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 42 ).
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 42 ).
Important: Mak e sur e spring w asher s
ar e installed cor r ectl y as sho wn in
Figur e 42 .
5. Install the dust cap ( Figure 42 ).
Figure 42
1. Spring Washers
3. Dust Cap
2. Lock Nut
Cooling System
Maintenance
Cleaning the Air Intake
Screen
Before eac h use remo v e any build-up of g rass , dir t
or other debris from the cylinder and cylinder head
cooling fins , air intak e screen on flywheel end, and
carburetor -g o v er nor lev ers and linkag e . T his will
help insure adequate cooling and cor rect engine
speed and will reduce the possibility of o v erheating
and mec hanical damag e to the engine .
Cleaning the Cooling System
Clean the air intak e screen from g rass and debris
before eac h use .
Chec k and clean cooling fins and engine shrouds
ev er y 100 hours or yearly , whic h ev er comes first.
1. Diseng ag e the PTO 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 guard, air intak e screen and fan
housing ( Figure 43 ).
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