3-14 4203780 First Edition
ENGINE
3
!
CAUTION
6. When the engine reaches normal operating
temperature, check and fill the coolant reservoir to
the hot full level.
Thermostat
Removal and Installation
See Figure 3-21.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-6.)
2. Allow the engine to cool completely.
3. Raise the hood.
!
WARNING
4. Drain the cooling system, 8 qt (7.6 L).
Figure 3-21
5. Loosen hose clamp (1) and remove hose (2).
6. Remove two screws (4).
7. Remove thermostat housing (3), gasket, and
thermostat.
Installation Notes
• Install the thermostat by reversing the order of
removal.
• Clean gasket surface.
• Use a new gasket during installation.
• Fill the radiator with a 50/50 mixture of good quality
ethylene glycol-base antifreeze and clean fresh
water.
Throttle Cable and Control Lever
Removal and Installation
See Figures 3-22 through 3-25.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-6.)
Figure 3-22
2. Remove four knobs (2) and eight screws (1), and
slide the console cover boot (4) back. Lift instrument
panel (3) up and turn counterclockwise to clear the
lever handles.
Figure 3-23
3. Remove nut (5) and lock washer (6).
Allow the engine coolant to completely cool
before removing the radiator cap. Hot coolant
sprayed from the cap can cause serious personal
injury.
Never remove the radiator cap when the coolant
is hot. The engine must be shut down and cooled
before the radiator cap is removed. Very hot
coolant will be sprayed from the radiator if the
cap is loosened before the engine has cooled.
Serious personal injury can occur.
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TN2018
TN1990
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TN2000
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