MTD 240-685-000 - Manual (Page 10)

CARBURETOR ADJUSTMENT
A
I WARNING ^
If any adjustments are made to the
engine while the engine is running
(e.g. carburetor), disengage all clutches.
Keep clear of all moving parts. Be
careful of heated surfaces and muffler.
If carburetor needs adjustment to start or for oper­
ation, see "Carburetor Adjustment" section of engine
manual.
CLUTCH ROD ADJUSTMENT (Self-Propelled Models
Only)
To adjust the clutch rod, refer to step numbers £ and
9 under assembly instructions.
LUBRICATION
Wheels - Rear wheels are provided with oil lite
bearings. Place a few drops of SAE 30 oil on each
bearing once a season.
Gear Box (Self-Propelled Models Only). The gear box
is lubricated with 2 ounces of High Temp. (450° F.)
grease. Order part number 737-0133. Periodically
check lubricant level by removing the two self­
tapping screws on the gear box cover and lifting off
the cover. Do not change grease; simply add if
necessary.
MAINTENANCE
FIGURE 19
A
t
W aning }
5. Slide belt off the impeller pulley. Slide housing
and impeller off engine crankshaft. Be careful
to not lose square key. See figure 20.
Disconnect spark plug wire and ground
it against the engine before performing
any repairs or maintenance.
BELT REPLACEMENT (Self-Propelled Models Only)
1. Remove the nozzle or impeller guard from front
of blower housing.
2. Remove hex bolt and lock washer from cen :er of
impeller. See figure 18. A 9/16" socket w ench
with extension is needed.
3. Remove hand knob and belleville washer from
top of housing.
4. Remove two self-tapping screws which hold the
belt guard. See figure 19. A 3/8" wrench is
required. Lift off belt guard.
ENGINE
CRANKSHAFT
P.T.O.
PULLEY
FIGURE
10