Carburetor adjustment, Clutch rod adjustment (self propelled models only), Belt replacement (self propelled models oniy) – MTD 248-685-000 User Manual
Page 10: Lubrication, Maintenance
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CARBURETOR ADJUSTMENT
A
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 eng ne
manual.
CLUTCH ROD ADJUSTMENT (Self Propelled Models
Only)
To adjust the clutch rod, refer to step numbers 8 ; nd
9 under assembly instructions.
LUBRICATION
Wheels - Rear wheels are provided with oil I te
bearings. Place a few drops of SAE 30 oil on e ich
bearing once a season.
Gear Box (Self Propelled Models Only) - The gear box
lubricated with 2 ounces of High Temp. (450° F.)
grease. Order part number 737-0133. Periodic;illy
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
( V^NING {
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 Oniy)
1. Remove the nozzle or impeller guard from fr)nt
of blower housing.
2. Remove hex bolt and lock washer from centei of
impeller. See figure 18. A 9/16" socket wrench
with extension is needed.
3.
Remove hand knob and belleville washer fram
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
SQUARE
KEY
FIGURE 20
1 0