Troy-Bilt 42012 - Manual (Page 26)

26
Section 5: Maintenance
Brake Arm Adjustment
The brake arm adjustment is set at the
factory to 1/16 - 1/8” for proper belt/brake
clearance. Due to wear this may need
adjustment. To perform this adjustment:
1. Remove the bolts, flat washer, lock
washer and belt cover (AB, Fig. 5-9).
2. Squeeze the auger drive control lever
(AL, Fig. 5-9) against handlebar.
3. Using a flashlight, look down through
the pulleys and belts (Fig. 5-11).
Check the gap between the brake arm
(A, Fig. 5-15) and the belt (B). The
gap should measure between 1/16"
and 1/8" (1.5–3 mm).
4. To adjust the gap: Loosen nut (C).
Hold the bolt (D) in place and rotate
nut (E) until the proper clearance is
obtained. Secure nut (C).
5. Reinstall the bolts and belt cover.
Skid shoes/Scraper blade
1. The unit should be adjusted so the
auger housing and the scraper blade
(N, Fig. 5-16) are 1/8” above the
surface to be cleared. If the unit is
used to clear gravel or uneven
surfaces, this adjustment should be
increased so gravel or other foreign
objects are not scooped into the auger.
To adjust the auger housing/scraper
blade height:
a. Move the unit onto a level surface.
b. Loosen the hardware securing the
skid shoes (M, Fig. 5-16).
c. Adjust the skid shoes (M) until
they are in the correct position to
support the auger housing and the
scraper blade (adjust both skid
shoes the same to prevent uneven
snow removal).
d. Tighten the hardware to lock the
skid shoes (M) into the proper
position.
2. The scraper blade (N, Fig. 5-16) can
also be adjusted. Adjust the scraper
blade (N) at the carriage bolts. Adjust
the bottom edge of the scraper blade
so it is parallel with the bottom edge of
the auger.
Off-season storage
When storing the unit for more than 90
days, follow these procedures to help keep
the unit in good condition for future use:
• Clean dirt, grime and grease from the
unit and engine.
• Perform routine lubrication as
instructed earlier in this section.
• Add a fuel stabilizer to the fuel tank,
according to the instructions provided
with the stabilizer. Avoid leaving non-
stabilized fuel in the fuel tank for
longer than 30 days because gum and
other deposits can form which could
foul the carburetor and fuel line.
• If the unit is equipped with a fuel shut-
off valve, rotate the valve to the “OFF”
position.
• Change the engine oil.
• Remove the spark plug and squirt 1/2
ounce of engine oil into the spark plug
hole. Hold a rag over the hole (be
careful to prevent the rag from
entering the hole). Slowly pull the
recoil starter several times to coat the
cylinder wall with oil. Re-install the
spark plug, but leave the spark plug
wire disconnected from the spark plug.
• Thoroughly inspect the unit for any
loose, damaged, or missing parts.
Repair or replace the parts as
necessary.
• Check all nuts, bolts and other
fasteners for tightness and tighten as
necessary.
• Touch-up scratches and chipped paint
to prevent corrosion.
• Store the unit on a level surface, out of
the reach of children.
Fig. 5-16
N
M
Fig. 5-15
A
B
D
E
C
1/16"-1/8"
1.5 - 3 mm