Replacing the Rotor Drive Belt
Service Interval:
Every 50 hours—Check the rotor
drive belt for wear or damage.
Visually inspect the belt (Figure 11), looking for dirt,
wear, cracks, and signs of overheating. If belt is
excessively worn or shows any signs of damage, replace
the belt.
Note:
Figure 11 shows the belt viewed from underneath
but the belt can be checked, adjusted or replaced from
either the top or the bottom after the removal of the
relevant guard.
Figure 11
1.
Locknut
3.
1/2 inch (13 mm) deflection
here
2.
Turnbuckle
4.
Idler pulley
To replace the belt, complete the following procedure,
referring to Figure 11 throughout:
1. Remove the idler pulley and the worn belt.
2. Install the new belt with the idler pulley.
3. Engage the blade (PTO) lever and check the belt
tension.
The proper mower belt tension is 10 lb (4.5 kg) of
force to deflect the belt 1/2 inch (13 mm) at the
midpoint of the longest span (Figure 11).
Important:
The belt must be tight enough to
not slip during heavy loads while cutting grass.
Over tensioning the belt will reduce the gearbox,
belt, and idler pulley life.
Adjust the tension as follows:
A. Loosen the locknut (Figure 11)
B. Rotate the turnbuckle. Increase the length
between the eyebolts to add more tension into
the belt or decrease the length to decrease the
tension in the belt.
C. Tighten the locknut.
Checking the Gearbox Oil
Level
Service Interval:
Every 50 hours
1. Remove the top guard (Figure 7).
2. Remove the plug from the gearbox fill hole and
check the oil level (Figure 12).
The oil should be even with the bottom of the fill
hole.
Figure 12
1.
Gearbox fill hole
3. If it needs oil, add EP 220 gear oil to the fill hole
until it starts to run out of the hole.
4. Install the plug in the fill hole.
5. Install the top guard.
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