BELT SERVICING
Belt Replacement
One of the major causes of belt failure is improper installation. Before installing a new belt, check the fol- lowing:
1.Check pulley shafts and bearings for wear.
2.Check pulley grooves for cleanliness.
3.Make sure spindles turn freely and without wobble.
If grooves require cleaning, moisten a cloth with a non- flammable,
Avoid excessive force during installation. Do not use tools to pry belt into pulley groove. Do not roll belt over pulleys to install. This can cause hidden damage and premature belt failure.
Belt Installation
Figure 4. Belt Routing
4.Grasp belt between spindle pulley E, spring-loaded idler F and spindle pulley D. Pull spring-loaded idler with belt to obtain enough belt length to route it over pulley E. Make sure spring-loaded idler pivots freely with belt installed.
BLADE SERVICING
Before servicing blades, raise and lock mower in transport position, turn off engine, set parking brake and remove key.
Keep all persons away from operator control area while performing adjustments, service, or maintenance.
CAUTION
Frequently check blades. They should be sharp, free of nicks and cracks, and securely fastened.
1.Raise mower decks to the transport position and make sure transport locks are engaged.
2.Shut off tractor, relieve hydraulic pressure in cylinders, set parking brake and remove key.
3.Inspect blades before each use to determine that they are mounted securely and are in good condition.
4.Replace any blade that is bent, excessively nicked, worn, or has any other damage.
5.Small nicks can be ground out when sharpening.
Blade Removal
NOTICE
■Use care when installing or removing belt from
1.Slide belt under drive pulley A and over idler arm. Position belt around drive pulley A.
2.It may be necessary to remove front bolts (1) and swing gearbox stand up to gain access to pulley A. Route belt around pulley B, idler C, and pulley D as shown.
3.Make sure belt is on drive pulley A and route around idler F.
Do not handle blades with bare hands. Careless or improper handling may result in serious injury.
1.Remove bolt (1), Figure 7, which has right hand threads.
2.Remove washer and blade.
Blade Sharpening
NOTICE
■When sharpening blades, be sure to balance them. Unbalanced blades will cause excessive vibration that can damage blade spindle bearings. Vibration may also cause structural cracks in mower housings.
20 Owner Service | MAN0765 (12/5/2008) |
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