7-28
Z Master Z400 Service Manual
7
MOWER DECKS/PTO
Fig 501
fig. 49 G001678
Z 400 Series
1. Disengage the PTO, move the motion control levers
to the neutral locked position, and set the parking
brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
postition.
3. Remove the belt covers over the outside spindles.
4. Loosen the fixed idler arm and adjust it to relieve the
belt tension on the fixed idler pulley (Fig. 501).
5. Install the belt covers over the outside spindles.
6. Tighten the outer nut on the spring eye bolt (Fig.
500).
Note: Check the spring length. The spring should
measure 9-38
+
1/8 inch (238
+
3mm) with belt
installed. Adjust it if it does not (Fig. 500).
5. To increase the belt tension, rotate the ratchet or
breaker bar counterclockwise to move the fixed
idler arm until you feel increased resistance and the
spring-loaded idler pulley stops moving (Fig. 502).
Note: Do not increase the belt tension beyond the
point where the fixed idler arm stops.
Fig 502
fig. 50 G001679
6. While holding the belt in tension, tighten the 2 nuts
that secure the fixed idler arm.
7. Remove the ratchet or breaker bar from the square
hole in the fixed idler arm.
8. Install the belt covers over the outside spindles.
1. Fixed idler arm
4. Mower belt
2. Square hole
5. Belt guide
3. Fixed idler pulley
6. Spring-loaded idler
pulley
1. Ratchet with short
2. Square hole
extension or breaker
bar
Adjusting the Mower Belt Tension
Содержание Z 440 Pro Value Series
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Страница 190: ...Z Master Z400 Series Service Manual Form No 492 9166...