Ventrac 4500Y - Checking the Fan (Alternator) Belt; Adjusting Fan (Alternator) Belt Tension; Cleaning Engine Compartment & Engine

SERVICE
Service - 47
Checking The Fan (Alternator) Belt
1.
WARNING
Avoid Personal Injury!
Fingers or loose clothing can get caught in rotat-
ing parts. Shut off the power unit engine, remove
the ignition key, and wait for all moving parts to
stop rotating before working on the power unit.
Park the power unit on a level surface.
2. Engage the parking brake and shut off the engine.
3. Remove the key from the ignition switch and
allow the engine to cool.
4. Turn the battery disconnect switch to the Off
position.
5. Open the engine hood to access the engine
compartment.
A
B
6. Check the fan belt (A) for exces-
sive wear, cracks, or damage.
Replace if necessary.
7. Check the fan belt for proper
tension. Depress the belt
halfway (B) between the drive
pulley and the alternator pulley
and measure the belt deection
at the specied force 22 lbf (98
N, 10 kgf). The belt deection
should measure 1/4 to 3/8 inches (7 to 9 mm).
If the belt deection is not within specications,
the belt tension must be adjusted.
Adjusting Fan (Alternator) Belt Tension
1.
WARNING
Avoid Personal Injury!
Fingers or loose clothing can get caught in rotat-
ing parts. Shut off the power unit engine, remove
the ignition key, and wait for all moving parts to
stop rotating before working on the power unit.
Turn the battery disconnect
A
B
switch to the Off position.
2. Loosen the alternator adjust-
ment bolt (A).
3. Loosen the bottom alternator
mounting bolt (B).
4. Move the alternator in the
desired direction.
5. Tighten the alternator adjustment bolt.
6. Tighten the bottom alternator mounting bolt.
7. Recheck the belt for proper tension.
Cleaning Engine Compartment & Engine
Clean the engine compartment and engine daily or
prior to each use, to reduce the risk of engine over-
heating or ignition of accumulated debris.
1. Park the power unit on a level surface.
2. Engage the parking brake and shut off the engine.
3. Remove the key from the ignition switch and
allow the engine to cool.
4. Open the engine hood to access the engine
compartment.
5. Remove accumulated debris and dust from the
engine compartment and engine.
6. Refer also to Cleaning The Radiator And Screen
section of this manual.