Service Manual

MOWER DECKS

7-81Z580/Z593/Z595 Diesel Service Manual

61. Install 4 new bolts securing the pinion assembly to

the to the gearbox housing. Torque the bolts to 280 –

325 in-lbs. (31.6 – 36.7 Nm) (Fig. 987).

Note: The bolts are to be tightened in a crisscross

pattern.

62. Check the pinion shaft end play measurement,

it should be between .004” and .012” (.101 and

.305mm). Adjust the pinion housing shims to adjust

backlash (Fig. 988).

Note: Pinion housing shims and open end cap

shims should not vary more than .005”

(.127mm). If they vary more than that, adjust

the cross shaft shimming until a better

balance is achieved.

Fig 987 IMG-8580a

Fig 988 IMG-8572