Troubleshooting - MTD 550 Thru 570 Operator's Manual

6
Trouble
Shooting
For repairs beyond
the minor adjust-
ments listed here,
contact an authorized
service dealer.
Hydraulic
Trouble
Shooting
Problem
Engine fails to start
Engine runs erratic
Engine Overheats
Problem
Cylinder rod will not
move
Cause
1. Spark plug wire disconnected.
2. Fuel tank empty or stale fuel.
3. Choke, if equipped, not in CHOKE
position.
4. Faulty spark plug.
5. Blocked fuel line.
6. Engine (if equipped with a primer) not
primed properly.
7. Throttle control lever not in correct
starting position.
1. Unit running with CHOKE applied, if so
equipped.
2. Spark plug wire loose.
3. Blocked fuel line or stale fuel.
4. Water or dirt in fuel system.
5. Dirty air cleaner.
6. Carburetor not adjusted properly.
1. Engine oil level low.
2. Dirty air cleaner.
3. Carburetor not adjusted properly.
Cause
1. Broken drive shaft.
2. Shipping plugs left in hydraulic hoses.
3. Set screws in coupling not adjusted
properly.
4. Loose shaft coupling.
5. Gear sections damaged.
6. Damaged relief valve.
7. Hydraulic lines blocked.
8. Incorrect oil level.
9. Damaged directional valve.
10. Blocked directional valve.
16
Remedy
1. Connect wire to spark plug.
2. Fill tank with clean, fresh gasoline.
3. Move choke to CHOKE position.
4. Clean, adjust gap, or replace.
5. Clean fuel line.
6. Prime engine.
7. Move throttle lever to FAST posi-
tion.
1. Move choke lever to OFF position.
2. Connect and tighten spark
plug wire.
3. Clean fuel line; fill tank with clean,
fresh (less than 30 days old)
gasoline.
4. Drain fuel tank. Refill with
fresh fuel.
5. Clean or replace air cleaner.
6. See authorized service dealer.
1. Fill crankcase with proper oil.
2. Clean or replace air cleaner.
3. See authorized service dealer.
Remedy
1. See authorized service dealer.
2. Disconnect hydraulic hoses,
remove shipping plugs, reconnect
hoses.
3. See operator's manual for correct
adjustment.
4. Correct engine/pump alignment as
necessary.
5. See authorized service dealer.
6. See authorized service dealer.
7. Flush and clean hydraulic system.
8. Check oil level.
9. See authorized service dealer.
10.Flush and clean hydraulic system.