Simplicity SunStar 1692521 - Troubleshooting & Repair.20; General.20; Troubleshooting the Tractor.20

Troubleshooting a Repair
GENERAL
A WARNING
To avoid serious injury, perform maintenance on
the tractor or mower only when the engine is
stopped and the parking brake engaged. Always
remove the ignition key, disconnect spark plug
wire and fasten away from the plug before begin¬
ning the maintenance, to prevent accidental
starting of the engine.
This section of the manual provides troubleshooting and
repair instructions for the more common and easily
corrected problems. For other problems, it is recom¬
mended that you contact your dealer. Locate the problem
that best describes the trouble that you have encoun¬
tered. Check the possible causes one at a time, in the
order that they are listed.
TROUBLESHOOTING THE TRACTOR
Engine will not turnover or start.
1. Ground speed control lever not in neutral-start position.
Shift into neutral.
2. PTO (electric clutch) switch(es) in ON position. Place in
OFF position.
3. Out of fuel. If engine is hot, allow it to cool, then refill the
fuel tank.
4. Engine flooded. Push choke knob in (twin cylinder mod¬
els) or move throttle control out of CHOKE position.
5. Circuit breaker tripped. Wait one minute for automatic
reset. Replace if defective (see your dealer).
6. Battery terminals require cleaning. See Normal Care
section.
7. Battery discharged or dead. Recharge or replace.
8. Wiring loose or broken. Visually check wiring & replace
broken or frayed wires. Tighten loose connections.
9. Solenoid or starter motor faulty. Repair or replace.
10. Safety interlock switch or module faulty. Replace if
needed (see your dealer.)
11. Operator not in seat.
Engine cranks but will not start.
1. Out of gasoline.
2. Engine flooded. Push in choke and attempt to start.
Hold throttle wide open.
3. Crankcase oil too heavy. See engine manual.
4. Water in gasoline or gasoline is stale. Drain and fill
with fresh gasoline.
5. F aulty engine electrical or fuel system. See engine
manual or your dealer.
Engine starts hard or runs poorly.
1. Fuel mixture too rich. Clean air filter. Check choke
adjustment (engine speed control). See engine manual.
2. Carburetor adjusted incorrectly. See dngine manual.
3. Spark plug(s) faulty, fouled, or incorrectly gapped.
Clean and gap or replace. See engine manual.
4. In hot weather, fuel may evaporate from carburetor
when engine is shut off, causing engine to run rough
for a few minutes after starting. Do not shut off; allow
engine to clear itself.
5. Start engine with throttle midway between slow and
fast.
Engine knocks.
1. Low oil level. Check/add oil as required.
2. Using wrong grade oil. See engine manual.
3. Wrong grade of gasoline. Use fresh, regular grade of
gasoline.
Excessive oil consumption.
1. Engine running too hot. Clean engine fins, blower
screen and air cleaner.
2. Using wrong weight oil. See engine manual.
3. Too much oil in crankcase. Drain excessive oil.
Engine exhaust is black.
1. Dirty air filter. Clean air filter. See engine manual.
2. Check engine speed control adjustment (choke).
See engine manual.
3. Carburetor adjustment is incorrect. See engine man¬
ual or your dealer.
Tractor creeps in neutral.
1. T ractor creeps forward or backward with ground
speed control lever in neutral gate. See your dealer
for neutral adjustment.
Engine runs, but tractor will not drive or
lacks power.
1. Ground speed control lever in neutral. Shift in forward
or reverse.
2. On 20 HP models, two-speed axle shift in neutral.
Place in either low or high range.
3. Transmission oil cold. Allow 3 minutes for warm-up.
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