Toro 74310 Operator's Manual page 57
With 42in direct-collect cutting unit
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Also See for 74310:
- Operator's manual (64 pages) ,
- Setup instructions (12 pages) ,
- Setup instructions (12 pages)
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Problem
The machine does not drive.
The machine vibrates abnormally.
The machine produces an uneven cutting
height.
The blades do not rotate.
Possible Cause
1. The bypass valve is not closed tight.
2. The drive or pump belt is worn, loose
or broken.
3. The drive or pump belt is off a pulley.
4. The idler spring is broken or missing.
5. The hydraulic fluid level is low or too
hot.
1. The cutting blade(s) is/are bent or
unbalanced.
2. The blade mounting bolt is loose.
3. The engine mounting bolts are loose.
4. There is a loose engine pulley, idler
pulley, or blade pulley.
5. The engine pulley is damaged.
6. The blade spindle is bent.
7. The belt is damaged.
1. The blade(s) is/are not sharp.
2. The cutting blade(s) is/are bent.
3. The mower deck is not level.
4. The underside of mower is dirty.
5. The tire pressure in drive tires not
correct.
6. The spacers are in the wrong location.
7. The tips of adjacent blades are at an
uneven cutting height. Blades tips
should be even within 3/16 inch which
is approximately one blade thickness.
1. The PTO belt is worn, loose, or broken.
2. The PTO shaft is not connected.
3. The PTO belt is off pulley.
57
Corrective Action
1. Tighten the bypass valve.
2. Change the belt.
3. Change the belt.
4. Replace the spring.
5. Add hydraulic fluid to reservoir or let it
cool down.
1. Install new cutting blade(s).
2. Tighten the blade mounting bolt.
3. Tighten the engine mounting bolts.
4. Tighten the appropriate pulley.
5. Contact an Authorized Service Dealer.
6. Contact an Authorized Service Dealer.
7. Install new belt.
1. Sharpen the blade(s).
2. Install new cutting blade(s).
3. Level the mower deck from side-to-side
and front-to-rear.
4. Clean the underside of the mower.
5. Adjust the tire pressure in the drive
tires.
6. Position the spacers under hairpins.
7. Replace blades, spindles and (or)
check for damage to mower deck.
1. Check the belt tension or replace belt
2. Connect the PTO shaft.
3. Check the belt for damage. Install the
belt and check adjusting shafts and
belt guides for correct position.
- Quick Links:
- Replacing the Pto Belts
- Schematics
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