Guide; Troubleshooting Guide - Snapper LT180H48DBV2 Safety Instructions & Operator's Manual

TROUBLESHOOTING GUIDE (Part 1)
When using the Trouble-Shooting Guides on this page and the next, don't overlook the simplest cause
first, even though it may seem too obvious to consider. For example, if the engine will not start, it simply
may be out of fuel. The Guides generally list the most simple causes first in each problem category to
help you locate the cause through the process of elimination.
PROBLEM
Starter Will Not
Crank Engine
Engine Will Not
Start
Engine Stalls After
Running
Engine Loses
Power
Engine Backfires
When Turned To
"STOP"
Excessive
Vibration
PROBABLE CAUSE
1. Battery dead.
2. Blown fuse.
3. Electrical connections loose or
corroded.
4. Defective ignition switch.
5. Starter Spins without engaging.
1. Blade engagement switch in the
"ON" position.
2. Park brake not set.
3. Fuel tank empty.
4. Engine needs choking.
5. Spark plug wire disconnected.
6. Battery weak or dead.
7. Faulty interlock switch.
1. Operator not in seat.
2. Engine speed control in the
"CHOKE" position.
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.
2. Engine air pre-cleaner or air
cleaner dirty.
3. Engine oil level low.
4. Engine cooling fins and air
screens excessively dirty.
5. Spark plug faulty.
6. Water, debris or stale fuel in
fuel system.
1. Engine speed control set too
"FAST".
1. Damaged or bent mower
blades.
2. Loose blade components.
3. Loose or missing air lift (if
equipped).
CORRECTIVE ACTION
1. Service battery.
2. Replace fuse.
3. Clean and check connections for good
contact.
4. Contact authorized SNAPPER dealer.
5. Release Start key and repeat attempt. If
starter continues to spin, contact Dealer.
1. Move blade engagement switch to
=OFF".
2. Set park brake.
3. Fill fuel tank with fresh fuel.
4. Move engine speed control to "CHOKE".
5. Place spark plug wire onto spark plug.
6. Service battery.
7. Contact authorized SNAPPER dealer.
1. Sit in operator's seat.
2. Move engine speed control to "FAST".
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 by slowing ground speed.
2. Clean or replace filters.
3. Fill with engine oil to proper level.
4. Clean free of all debris.
5. Service spark plug.
6. Drain and clean fuel system.
1. Set engine speed 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. Replace air lifts. Tighten to proper
torque.
(Continued on next Page)
12