MTD White 315E646F190 - Manual (Page 12)

AUGERS
The augers are secured to the spiral shaft with two
hex bolts and hex lock nuts. See figure 16. If you hit a
foreign object or ice jam, the snow thrower is
designed so that the hex bolts will shear.
If the augers will not turn, check to see if the hex bolts
have sheared. Two replacement hex bolts and hex
lock nuts have been provided with the snow thrower.
For future use, order part number 710-0890 (hex bolt
5/16-18 X 1.5" long) and 712-0158 (hex lock nut
SHAVE PLATE AND SKID SHDES
The shave plate and skid shoes on the bottom of the
snow thrower are subject to wear. They should be
checked periodically and replaced when necessary.
To remove skid shoes, remove the four carriage bolts,
belleville washers and hex nuts which attach them to
the snow thrower. Reassemble new skid shoes with
the four carriage bolts, belleville washers (cupped
side goes against skid shoes) and hex nuts. Make
certain the skid shoes are adjusted to be level.
To remove shave plate, remove the carriage bolts,
belleville washers and hex nuts which attach it to the
snow thrower housing. Reassemble new shave plate,
making sure heads of the carriage bolts are to the
inside of the housing. Tighten securely.
ENGINE
Refer to separate engine manual for all engine
maintenance procedures.
BELT REMOVAL AND REPLACEMENT
WARNING: Disconnect the spark plug
wire from the spark plug and ground. A
AUGER BELTS
NOTE: It is necessary to remove both belts in order to
change either one. If changing just one belt, be cer­
tain to check the condition of the other belt (model
616E has only one auger belt).
1. Remove the plastic belt cover on the front of the
engine by removing the two self-tapping screws.
See figure 17.
Cover
Self-Tapping
Screws
FIGURE 17.
2. Drain the gasoline from the snow thrower, or
place a piece of plastic under the gas cap.
3. Tip the snow thrower up and forward so that it
rests on the housing.
4. Remove six self-tapping screws from the frame
cover underneath the snow thrower.
5. Roll the front and rear auger belts off the engine
pulley. See figure 18.
FIGURE 18.
6. Unhook the idler spring from the hex bolt on the
auger housing. See figure 19.
7. Unhook the support bracket spring from the
frame.
8. Lift the front auger belt from the auger pulley, and
slip belt between the support bracket and the
auger pulley. See figure 19. Repeat this step for
rear auger belt (except Model 616E).
9. Replace both auger drive belts by following
instructions in reverse order.
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