Exmark Z Turf Equipment Z-SPRAY Operator's Manual page 62

Troubleshooting
Problem
Engine overheats
Machine pulls left or right (with lever fully
forward).
Machine does not drive.
Abnormal vibration
Impeller does not rotate.
Uneven spread/spray pattern.
No front spray or poor output.
No material dispensed from hopper.
Spray wand does not work.
Possible Cause
1. Engine load is excessive
2. Oil level in the crankcase is low.
3. Cooling fins and air passages for the
engine are plugged.
1. Tire pressure in drive tires not correct.
2. Damaged steering linkage rod.
3. Front wheel toe-out is not correct.
4. Front wheel axles are bent or damaged.
5. Steering control is bent or damaged.
1. Bypass valve is not closed tight.
1. Engine mounting bolts are loose.
2. Loose drive shaft.
1. Debris buildup.
2. Hopper screen is plugged.
3. Spreader motor is loose or damaged.
4. Spreader motor electrical failure.
5. Spreader controller turned off or down.
6. Shaft pin is missing.
7. Impeller motor bearing failure.
1. Impeller is dirty or damaged.
2. Gate not adjusted properly.
3. Nozzles are clogged.
4. Hopper screen is plugged.
5. Material clumps over gate.
6. Diffuser ramp setting incorrect.
1. Tank is empty.
2. Strainer is clogged or damaged.
3. Pump is clogged or damaged.
4. Nozzles are clogged.
5. Hoses are clogged, kinked, or damaged.
6. Agitation is on.
7. Spray control not on.
8. Spray pressure and speed incorrect.
9. Spray mixture is incorrect.
10. Spray system is leaking.
1. Hopper screen is plugged.
2. Gate not adjusted properly.
1. Tank is empty.
2. Control valve in wrong position.
3. Wand is clogged or damaged.
4. Nozzle is clogged.
5. Trigger is not pressed.
6. Hoses are clogged or damaged.
7. Hose is not connected to wand
8. Hose is kinked.
62
Corrective Action
1. Reduce the ground speed.
2. Add oil to the crankcase.
3. Remove the obstructions from the
cooling fins and air passages.
1. Adjust tire pressure in the drive tires.
2. Replace steering rods.
3. Adjust the toe-out. See Adjusting Front
Wheel Toe-Out section in Adjustments.
4. Repair or replace front wheel axles.
5. Repair or replace steering control.
1. Tighten the bypass valve.
1. Tighten the engine mounting bolts.
2. Tighten the appropriate fasteners.
1. Clean impeller.
2. Clean hopper screen.
3. Repair or replace motor.
4. Check connections.
5. Check controller knob positions.
6. Replace shaft pin.
7. Replace bearing or entire motor.
1. Clean, repair, or replace impeller.
2. Adjust the gate. See Spreader Pattern
Adjustment section in Operation.
3. Unclog or replace nozzles.
4. Clean hopper screen.
5. Check motor shaft agitator pin presence.
6. Adjust control cable position.
1. Fill tank.
2. Clean, repair, or replace strainer.
3. Clean, repair, or replace pump.
4. Unclog or replace nozzles.
5. Clean, repair, or replace hoses.
6. Shut off agitation.
7. Turn on spray.
8. Adjust pressure and speed.
9. Follow chemical manufacturer's
recommendation.
10. Inspect system and clean, repair, or
replace components as needed.
1. Clean hopper screen.
2. Adjust the gate. See Spreader Pattern
Adjustment section in Operation.
1. Fill tank.
2. Place in "open" position.
3. Clean, repair, or replace wand.
4. Unclog or replace nozzle.
5. Press trigger.
6. Clean, repair, or replace hoses.
7. Reconnect hose.
8. Unkink hose.