MTD 675 thru 689 - Manual (Page 9)

N
OFF-SEASON STORAGE
The following steps should be taken to prepare your
vacuum for storage.
1. Clean and lubricate the vacuum thoroughly as
described in the lubrication instructions.
2. Refer to engine manual for correct engine storage
instructions.
3. If storing in an unventilated or metal storage
shed, coat metal parts with a light oil or silicone to
prevent rust.
4. Store in a dry, clean area. Do not store next to
corrosive materials, such as fertilizer.
OPTIONAL EQUIPMENT^
Hose Attachment Kit Model 290-204-000 is available
as optional equipment. See figure 21.
Hose
Attachment
Kit
FIGURE 21.
TROUBLE SHOOTING
PROBLEM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Engine fails to start 1. Fuel tank empty, or stale fuel.
2. Spark plug wire disconnected.
3. Faulty spark plug.
1. Fill tank with clean, fresh fuel.
2. Connect wire to spark plug.
3. Clean, adjust gap or replace.
Loss of power;
operation erratic
1. Spark plug wire loose.
2. Unit running on CHOKE.
3. Blocked fuel line (if so equipped)
or stale fuel.
4. Water or dirt in fuel system.
5. Carburetor out of adjustment.
6. Dirty air cleaner.
1. Connect and tighten spark plug wire.
2. Move choke lever to OFF position.
3. Clean fuel line; fill tank with clean
fresh gasoline.
4. Disconnect fuel line at carburetor to drain fuel
tank. Refill with fresh fuel.
5. Adjust carburetor.f
6. Service air cleaner.t
Engine overheats 1. Carburetor not adjusted
properly.
2. Engine oil level low.
1. Adjust carburetor.f
2. Fill crankcase with proper oil.
Too much vibration Loose parts or damaged
crankshaft.
Stop engine immediately and disconnect
spark plug wire. Tighten all bolts and nuts.
Make all necessary repairs. If vibration continues,
have unit serviced by an authorized service
dealer.
Unit does not
discharge
1. Directional discharge or
nozzle clogged.
2. Foreign object or dirt lodged in
air vane plate assembly.
3. Vacuum bag is full.
4. Belt worn and/or stretched.
1. Stop engine immediately and disconnect
spark plug wire. Clean directional discharge
or nozzle.
2. Stop engine immediately and disconnect
spark plug wire. Remove lodged object or dirt.
3. Empty bag.
4. Replace belt. See maintenance section of
this manual.
tRefer to the engine manual packed with your unit.
NOTE: For repairs beyond the minor adjustments listed above, please contact your nearest authorized service dealer.