DRIVE SYSTEMS
Should you need to replace the drive chain on your
snowthrower, perform the following service procedure:
Rotor Shell Replacement (1972 - 1980):
Note: Does not apply to models prior to 1972 – the
1.
2.
Refer to "Crankshaft Sprocket Replacement (all
models)" on page 5 - 21. Complete steps 1 and 2.
rotor shell design was not used.
1.
Refer to "Chain Adjustment Procedure (all
models)" on page 5 - 20. Complete steps 1
through 5.
Using a needle nose pliers, remove the locking
clip on the master connecting link of the chain
(Figure 109). The master connecting link can now
be pulled apart and the old chain removed.
2.
3.
Slide the engine forward until the chain is slack.
Note: When replacing the new chain, inspect both
the crankshaft sprocket and impeller sprocket for
unusual wear. It may be necessary to replace one
or both sprockets. If sprocket replacement is
needed, refer to the "Crankshaft Sprocket
Replacement (all models)" on page 5 - 21, the
"L.H. And R.H. (Left Hand And Right Hand) End
Cap/Bushing Replacement (1972-1980) 14” And
21” Models" on page 5 - 22, and "Impeller
Sprocket/Tube Assembly And Bushing
Using a needle nose pliers, remove the locking
clip on the master connecting link of the chain
(Figure 109). The master link can now be pulled
apart.
4.
5.
Remove the chain from both the crankshaft
sprocket and impeller sprocket.
Remove the four bolts retaining the rotor in the
impeller housing (Figure 116). Two of the bolts
are on the left side and two are on the right side of
the impeller housing.
Replacement (1965 - 1971) 14” And 21” Models"
on page 5 - 25.
3.
Place the chain around both sprockets (Figure
121). Install the master connecting link. Install the
locking clip with the use of a needle nose pliers.
6.
7.
8.
9.
Remove the entire rotor shell assembly from the
snowthrower (Figure 117).
Remove all ten screws retaining the rubber
paddles to the rotor shells (Figure 119).
Note: If sprockets were also replaced with the
chain, be certain to align the chain with respect to
both sprockets. Refer to "Crankshaft Sprocket
Replacement (all models)" on page 5 - 21, step 6.
Replace the rotor shells. When replacing, fit the
end cap tabs into the slots in the rotor shells.
4.
Refer to "Crankshaft Sprocket Replacement (all
models)" on page 5 - 21. Complete 7 through 10.
Slide the paddles into position and torque the
screws to 15 in·lbs (Figure 120). (DO NOT
OVERTORQUE!)
10.
11.
After installing both rotor shafts in the bushings of
the end plates, slide the rotor shell assembly back
into the housing of the snowthrower, and align the
rotor shafts with the four mounting holes. Tighten
all four bolts firmly (Figure 116).
Refer to "L.H. And R.H. (Left Hand And Right
Hand) End Cap/Bushing Replacement (1972-
1980) 14” And 21” Models" on page 5 - 22.
Proceed with steps 13 through 16.
5 - 26
Single Stage Snowthrower Service Manual
(3 votes, average: 4.67 out of 5)
Lawn and Garden readers have rated Toro Single Stage Snow Blower Service Manual 4.7 out of 5.0 based on 3 product reviews. EXCELLENT . Hard to find manual and very detailed . Only downside is the pics and wording in pics are backwards , but I can deal with that
The manual provides detailed step-by-step instructions for engine removal and installation but there is nothing in it about repair of the recoil starter. The engine removal instructions will be helpful because the starter is buried behind the fuel tank and engine support bracket. I think my problem is a sticking starter dog but getting to it will be a major project.
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