Adjusting The Scraper And Skids; Adjusting The Speed Selector - Toro 38078 Operator's Manual

IMPORTANT:
Do not operate the snowthrower if the
auger and impeller rotate when the auger/impeller
control lever is not engaged.
Adjusting the Scraper and
Skids
Adjust the scraper to compensate for wear and to ensure
that the auger does not contact the pavement.
1. Pull the wire off of the spark plug and ensure that the
wire does not contact the plug (Fig. 19).
2. Check the tire pressure in both tires to ensure that they
are inflated equally between 7 and 15 psi
(48 and 103 kPa).
3. Move the snowthrower to a level surface.
4. Loosen the four flange nuts that secure both skids to
the auger side plates (Fig. 28) until the skids can slide
up and down easily.
Figure 28
1. Skid
2. Auger side plate
5. Support the auger blades so they are 1/8 in. (3 mm)
off the ground.
Note:
The scraper should be higher above than 1/8 in.
(3 mm) if the pavement surfaces are cracked, rough, or
uneven.
6. Check the scraper blade adjustment. The scraper blade
should be 1/8 in. (3 mm) above and parallel to a level
surface.
7. To adjust the scraper blade, loosen the five screws
(Fig. 29), level the blade, and tighten the five screws.
651
3. Flange nuts
652
1. Scraper
2. Mounting screws
For Concrete and Asphalt Surfaces
If the snowthrower does not clean up the snow close
enough to the pavement, adjust the skids to lower the
scraper; if the scraper catches on cracks in the pavement,
adjust the skids to raise the scraper.
1. Support the scraper at least 1/8 in. (3 mm) above the
pavement.
2. Move the skids down to sit flat on the ground.
3. Tighten the four flange nuts that secure both skids to
the auger side plates (Fig. 28).
For Gravel Surfaces
For gravel or crushed rock surfaces, adjust the skids to
prevent picking up rocks.
1. Support the auger blades a few inches (centimeters)
above the ground.
2. Slide the skids down as far as possible.
3. Tighten the four flange nuts.

Adjusting the Speed Selector

If there is slow or no ground speed in the No.1 speed
selection, or the speed selector cannot be moved into the
No. 3 speed selection, adjust the speed selector linkage.
1. Pull the wire off of the spark plug and ensure that the
wire does not contact the plug (Fig. 19).
2. Move the speed selector (Fig. 15) on the control panel
to the R (reverse) position.
2
3. Remove the cotter pin and washer.
4. Pull the speed selector rod out of the hole in the speed
selector arm (Fig. 5).
21
Figure 29
3. Auger blades