Maintenance

Figure 18

1. Front of unit

2. Alignment holes

 

 

Belt Guide Adjustment

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Remove the belt shield on the right side of mower deck.

3.Note belt guide bolted to deck near the shield support stud and right-hand pulley. Guide should be 1/8 inch (3.2 mm) away from the belt, with bolt-end of guide near end of slot (Figure 20).

4.If adjustment is necessary, loosen the bolt securing the belt guide and make proper adjustment. Tighten hardware.

 

 

Figure 19

1.

Spring idler pulley

3. Right side idler pulley

2.

Front of unit

(adjustable)

 

 

 

 

Alternator Belt Tension

Stop engine, wait for all moving parts to stop and remove key. Engage parking brake.

Tilt seat and remove air deflector panel

To tighten alternator belt, loosen both upper and lower alternator mounting bolts. Rotate alternator out, away from engine and retighten hardware to secure in place.

When properly tensioned, the alternator belt will deflect 1/4 to 3/8 inch (7-9 mm) while applying 22 pounds of force to the belt midway between fan and alternator.

Figure 20

1. End of slot

2. Belt guide

 

 

Parking Brake Adjustment

Service Interval: After the first 100 hours

Every 500 hours thereafter

Check to make sure brake is adjusted properly. This procedure must be followed after the first 100 hours or when a brake component has been removed or replaced.

1.Drive the machine onto a level surface.

2.Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake.

3.Stop the engine, wait for all moving parts to stop, and remove the key.

4.Raise the back of the machine up and support the machine with jack stands.

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Exmark 920, 000 & higher manual Belt Guide Adjustment, Alternator Belt Tension, Parking Brake Adjustment

920, 000 & higher specifications

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