Simplicity AGCO Allis 400 Series, Service & Repair Manual

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2 Troubleshooting
Rider Troubleshooting
2- 2
TROUBLESHOOTING
The troubleshooting guide below lists some common
problems, their causes, and remedies.
See the repair information in the following sections for
instructions on how to perform most of these minor
repairs yourself. If you prefer, all of these procedures
can be performed for you by your local authorized deal-
er.
WARNING
Never attempt to perform repairs while the engine
is running.
Always turn the engine off and remove the key.
FAILURE TO COMPLY WITH THIS, AND OTHER,
SAFETY REQUIREMENTS CAN RESULT IN SERI-
OUS PERSONAL INJURY.
TROUBLESHOOTING THE RIDER
PROBLEM CAUSES REMEDIES
Engine will not turnover or start. 1. Ground speed control lever Shift into neutral.
not in neutral-start position.
2. PTO (electric clutch) switch Place in OFF position.
in ON position.
3. Out of fuel. If engine is hot, allow it to cool, then refill
the fuel tank.
4. Engine flooded. Move throttle control out of CHOKE position
5. Circuit breaker tripped. Wait one minute for automatic reset.
Replace if defective.
6. Battery terminals require Clean Battery.
cleaning.
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. See Electrical
Troubleshooting Section.
10. Safety interlock switch or Replace as needed. See Electrical
module faulty. Troubleshooting Section.
11. Spark plug(s) faulty, fouled Clean and gap or replace.
or incorrectly gapped. See engine manual.
12. Water in fuel. Drain fuel & refill with fresh fuel.
13. Gas is old or stale. Drain fuel & replace with fresh fuel.
14. Foot pedal not fully depressed. Depress pedal.
Engine starts hard or runs poorly. 1. Fuel mixture too rich. Clean air filter. Check throttle adjustment
2. Carburetor adjusted incorrectly. See engine manual.
3. Spark plug(s) faulty, fouled, or Clean and gap or replace.
incorrectly gapped. See engine manual.
Engine knocks. 1. Low oil level. Check/add oil as required.
2. Using wrong grade oil. See engine manual.
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. Replace air filter. See engine manual.
2. Throttle is in choke position. Move throttle out of CHOKE position.
Engine runs, but rider will 1. Ground speed control lever Shift in forward or reverse.
not drive. in neutral.
2. Transmission release lever Move into “drive” position.
in “push” position.
(Hydro models only)
3. Drive belt is broken. See Drive Belt Replacement.
4. Drive belt slips. See problem and cause on next page.
5. Brake is not fully released. See Brake Adjustment.