Problem
Possible Cause
Corrective Action
1. Blade(s) are not sharp.
1. Sharpen the blade(s).
2. Cutting blade(s) is/are bent.
2. Install new cutting blade(s).
3. The mower deck is not level.
3. Level the mower deck side-to-side
position.
4. The mower deck pitch is wrong.
4. Adjust the front-to-rear pitch.
5. The underside of mower deck is dirty.
5. Clean the underside of the mower
deck.
6. The tire pressure is not correct.
6. Adjust the tire pressure.
The cutting height is uneven.
7. A blade spindle is bent.
7. Contact an Authorized Service Dealer.
1. A pump-drive belt is worn, loose or
broken.
1. Check the belt tension.
2. A pump-drive belt is off pulley.
2. Install the drive belt and check the
adjusting shafts and belt guides for the
correct position.
3. A mower-deck belt is worn, loose or
broken.
3. Install the new deck belt.
4. A mower-deck belt is off the pulley.
4. Install the deck pulley and check the
idler pulley, idler arm and spring for the
correct position and function.
5. An idler spring is broken or missing.
5. Replace the spring.
6. The electric clutch is out of adjustment.
6. Adjust the clutch air gap.
7. The clutch connector or wire is
damaged.
7. Contact an Authorized Service Dealer.
8. The electric clutch is damaged.
8. Contact an Authorized Service Dealer.
9. The safety-interlock system prevents
blade rotation.
9. Contact an Authorized Service Dealer.
The blades do not rotate.
10. The PTO switch is faulty.
10. Contact an Authorized Service Dealer.
1. The fuse is blown.
1. Replace the fuse. Check the coil
resistance, battery charge, charging
system, and wiring connections, and
replace components if necessary.
2. There is low voltage supply at the
clutch.
2. Check the coil resistance, battery
charge, charging system, and wiring
connections and replace parts if
necessary.
3. The coil is damaged.
3. Replace the clutch.
4. There is inadequate current supply.
4. Repair or replace the clutch lead
wire or electrical system. Clean the
connector contacts.
The clutch does not engage.
5. The rotor/armature air gap is too large.
5. Remove the shim or replace the clutch.
1. The engine is too hot.
1. Turn the engine off and let it cool.
2. There is old fuel in the fuel tank.
2. Use new fuel.
3. The fuel-shutoff valve is not open
completely.
3. Open the fuel-shutoff valve.
4. The air cleaner is dirty.
4. Make sure that the air cleaner and
precleaner are clean. Replace them if
necessary.
5. The battery is not charged.
5. Charge or replace the battery.
6. Incorrect fuel filters are being used or
the fuel filters are dirty.
6. Contact an Authorized Service Dealer.
7. The connections to the sensors
electronic control unit (ECU) and fuel
injectors are not secured properly.
7. Contact an Authorized Service Dealer.
8. There is low voltage from the battery.
8. Ensure that the battery is fully charged.
The malfunction indicator light (MIL)
comes on.
9. A fuse is blown.
9. Check and replace any blown fuses.
57
Summary of Contents for GrandStand TURBO FORCE 74513
Page 58: ...Schematics g233853 Electrical Schematic Rev A 58...
Page 59: ...Notes...
