Troubleshooting - Snapper NZM19480KWV, NZM21520KWV Safety Instructions & Operator's Manual

PROBLEM
Starter Will Not Crank 1. Battery dead.
Engine 2. Blown fuse.
3. Electrical connections loose or corroded.
4. Defective ignition switch.
1. Blade engagement switch in the "ON" position.
Engine Will Not Start
2. Park brake not set or Operator not seated.
3. Motion Controls not in Neutral Lock Position.
4. Fuel tank empty.
5. Engine needs choking.
6. Spark plug wire disconnected.
7. Battery weak or dead.
8. Faulty parking brake, blade or ignition switch.
1. Operator not in seat.
Engine Stalls After
2. Choke control in the "CHOKE" position.
Running
3. Fuel tank empty.
4. Engine air pre-cleaner and or air cleaner dirty.
5. Spark plug defective or gap set improperly.
6. Fuel filter stopped up.
7. Water, debris or stale fuel in fuel system.
1. Excessive load on engine.
Engine Loses Power
2. Engine air pre-cleaner or air cleaner dirty.
3. Engine oil level low.
4. Engine cooling fins & air intake screen excessively dirty.
5. Spark plug faulty.
6. Water, debris or stale fuel in fuel system.
1. Throttle control set too "FAST".
Engine Backfires When
Turned To "STOP"
1. Damaged or bent mower blades.
Excessive Vibration
2. Loose blade components.
3. Worn or damaged components.
4. Loose or missing air lift (if equipped).

TROUBLESHOOTING

PROBABLE CAUSE
(Trouble Shooting Continued on Next Page)
30
CORRECTIVE ACTION
1. Service battery.
2. Replace fuse.
3. Clean and check connections for good contact.
4. Contact authorized SNAPPER dealer.
1. Move blade engagement switch to "OFF".
2. Set park brake and Operator in Operator Seat.
3. Place Motion Controls in Neutral Lock
Position.
4. Fill fuel tank with fresh fuel.
5. Move choke control to "CHOKE" position.
6. Place spark plug wire onto spark plug.
7. Service battery.
8. Contact authorized SNAPPER dealer.
1. Sit in operator's seat.
2. Move choke control to "OFF" position.
3. Fill with fuel to proper level.
4. Clean free of all debris.
5. Service spark plug.
6. Replace fuel filter.
7. Drain and clean fuel system.
1. Lessen load.
2. Clean or replace filters.
3. Fill with engine oil to proper level.
4. Clean cooling fins, air intake screen of all debris.
5. Service spark plug.
6. Drain and clean fuel system.
1. Set throttle control to "SLOW" and allow engine to
idle. Then, turn key to "OFF".
1. Service mower blade(s).
2. Service and tighten loose parts.
3. Inspect all belts and pulleys.
4. Replace air lifts. Tighten to proper torque.