Toro Z MASTER Z419, Руководство оператора

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Figure 49
1. Ratchet with short
extension or breaker
bar 2. Square hole
8. 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.
Note:
Do not increase the belt tension beyond the
point where the fixed idler arm stops.
9. While holding the belt in tension, tighten the 2 bolts
that secure the fixed idler arm.
10. Remove the ratchet or breaker bar from the square
hole in the fixed idler arm.
11. Install the belt covers over the outside spindles.
Replacing the Pump Drive Belt
Service Interval: Every 50 hours—Check the pump
drive belt.
1. Remove the mower belt first; refer to Replacing the
Mower Belt.
2. Remove the bolt from the clutch stop and unplug
the clutch electrical wire (Figure 50).
3. Pull the spring loaded idler to the side.
4. Remove the traction belt from the engine and the
hydraulic pump pulleys (Figure 50).
5. Install the new belt around the engine and the
hydraulic pump pulleys (Figure 50).
6. Pull the spring-loaded idler to the side and align the
belt.
7. Release the pressure on the spring loaded idler
(Figure 50).
8. Install the mower belt.
Figure 50
1. Belt 4. Bolt
2. Clutch electrical wire 5. Clutch
3. Clutch stop 6. Idler
Adjusting the Push Arms
If needed, adjust the push arms to increase or decrease
the mower belt tension.
1. Loosen the jam nut and rotate the ball joint
counterclockwise, one turn at a time (Figure 51).
Figure 51
1. Push arm 3. Jam nut
2. 15–1/8 inch (384 mm) 4. Ball joint
2. Adjust each side the same amount. Each push arm
should have a length of 15–1/8 inch (384 mm)
(Figure 51).
Note:
Increase the tension by lengthening the push
arms; decrease the tension by shortening the push
arms.
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