Ariens GRAVELY Pro-Turn 400 Series Dealer/Owner/Operator Manual page 38

5. Remove short mower belt (item 2) from
right blade sheave and from deck. Idler
pivot bolt must be loosened slightly to
gain clearance to remove belt from
under idler pulley.
6. Arrange new mower belt(s) on deck
(short belt first). Retighten short mower
belt idler pivot bolt. Install belts on
sheaves. Put belts onto center sheave
last.
NOTE: The PTO idler spring length range is
12 1/4 – 12 1/2" (31 – 31.8 cm) measured at
a 3 1/2" (8.9 cm) cutting height. Adjust the
idler spring length as needed, see Figure 34.
7. Replace the belt guide bolt on the idler
arm.
8. Replace belt covers and return foot
board to closed position.
992236
3
8
5
6
1. PTO Mower Belt
2. Mower Drive Belt
3. Springs
4. Mower Drive Belt Idler
5. PTO Mower Belt Idler
6. Mower Clutch Sheave
7. Center Sheave
8. Belt Guide Bolt
Figure 32
3
4
7
2
1
EN - 38
992240
3
5
8
6
1. PTO Mower Belt
2. Mower Drive Belt
3. Springs
4. Mower Drive Belt Idler
5. PTO Mower Belt Idler
6. Mower Clutch Sheave
7. Center Sheave
8. Belt Guide Bolt
Figure 33
PTO Idler Spring Length
Measure PTO idler
spring length at outer
ends of spring.
The PTO idler spring length range is
12 1/4 – 12 1/2" (31 – 31.8 cm) measured
at a 3 1/2" (8.9 cm) cutting height. Adjust
as necessary.
Figure 34
3
4
2
7
1