Exmark Lazer Z XP manual Self-tensioning No adjustment necessary, Mule Drive Belts Adjustment

5.2.3Wheel Drive Pump Belt Tension.

Self-tensioning - No adjustment necessary.

5.2.4Fan Pump Belt Tension.

Self-tensioning – No adjustment necessary.

5.2.5Mule Drive Belts Tension Adjustment.

Self-tensioning idlers, adjust as follows:

a)Stop engine, wait for all moving parts to stop, and remove key.

b)Check to make sure the coils of the spring on the spring-loaded idler pulley measures as listed below. See Figure 14.

Left Side Spring – 5 3/4” ± 1/8” (14.8 ± 0.3 cm)

Right Side Spring – 5 1/2” ± 1/8” (14.0 ± 0.3 cm)

c)If the spring does not have the correct measurement, loosen the nut holding the adjustable idler pulley on each side so they can move up and down in the slot.

d)Relieve pressure on the spring-loaded idler pulleys.

e)Reposition the adjusting pulleys lower in the slot and tighten the nut.

f)Re-check to make sure the coils of the spring on the spring-loaded idler pulley have the correct measurement. Repeat as necessary on both sides of the unit.

FIGURE 14

MULE DRIVE BELTS ADJUSTMENT

5.2.6Deck Belt Tension.

a)The deck belt is tensioned by a self-tensioning idler, no adjustment is necessary.

5.2.7Alternator belt tension.

a)Stop engine, wait for all moving parts to stop, and remove key.

b)Remove engine access panel and rubber flap assembly located behind seat.

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

d)When properly tensioned, the alternator belt will deflect 3/8”-1/2” (9-13 mm) while applying 22 pounds of force to the belt midway between fan and alternator.

5.2.8Belt Guide Adjustment.

a)Stop engine, wait for all moving parts to stop, and remove key.

b)Remove the belt shield on the right side of mower deck.

c)Locate belt guide bolted to deck near the shield support stud and right-hand pulley. Guide should be 1/8” (3 mm) away from the belt, with bolt-end of guide near end of slot (See Figure 15).

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