3-6 673831-Rev A
ENGINE
3
Repair
Fan Belt
Removal and Installation
See Figure 3-4.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-6.)
2. Raise the hood.
3. Disconnect battery negative (–) cable at battery.
Figure 3-4
4. Loosen screws (1 and 3) and push alternator (2)
toward engine to loosen fan belt (4).
5. Remove fan belt (4) from alternator (2), engine
coolant pump (5), and crankshaft pulley (6).
Installation Notes
• Install fan belt by reversing the order of removal.
• Adjust belt tension by loosening alternator mounting
screws (1 and 3) and pulling alternator (2) against
belt (4) until proper tension is achieved.
• Measure belt tension at midpoint between pulleys.
Adjust alternator belt to 0.28–0.35 in. (7 to 9 mm)
deflection with a tension of 22 lb (98 N).
• See engine manufacturer’s manual for further
information.
Air Cleaner Assembly
Removal and Installation
See Figure 3-5.
Air filter on this engine is a dry type; never apply oil to this
air filter.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-6.)
2. Raise the hood.
Figure 3-5
Note the orientation of dust valve (2) before removing air
filter dust cap (1) to ensure correct installation.
3. Release retaining clips (3) and remove air filter dust
cap (1).
4. Using damp, lint-free cloths, thoroughly clean inside
of dust cap.
• Do not open the air cleaner assembly for
inspection and cleaning until the air filter
restriction gauge indicates an air filter
restriction. Removing the air filter increases
the possibility of dust, dirt, and contaminants
entering the engine.
• Do not remove the air filter with the engine
running.
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