DRIVE SYSTEMS
To replace the wheel bracket assembly on Model S-
620:
1.
2.
3.
Drain all fuel from the fuel tank. Refer to page 2 -
5.
Remove the upper shroud. After removing the
upper shroud, place the gas cap on the gas tank.
Remove the flange nut and cap screw at the base
of the engine support bracket refer to (Figure
129).
4.
5.
After tipping the unit forward, remove the
mounting bolts retaining the wheel brackets to the
lower handle (Refer to page 7 - 1, Figure 161).
Figure 129
0406-058
Inspect all parts and replace if necessary.
CHAIN DRIVE SYSTEM TROUBLESHOOTING CHART
CAUSES
CORRECTIVE ACTION
ENGINE RUNS BUT PADDLES DO NOT TURN OR CHAIN JUMPING
Sprocket not aligned properly.
Align sprockets. Refer to "Crankshaft Sprocket
Replacement (all models)" on page 5 - 21.
Improper chain tension.
Adjust chain tension.
Crankshaft and impeller sprocket damage.
Refer to "Crankshaft Sprocket Replacement (all
models)" on page 5 - 21 and "L.H. And R.H. (Left Hand
And Right Hand) End Cap/Bushing Replacement
(1972-1980) 14” And 21” Models" on page 5 - 22.
Note: To alleviate “icing” of drive parts, allow the unit to run until the heat generated from the engine melts any
compacted snow or ice that may have developed during operation of the unit.
Single Stage Snowthrower Service Manual
5 - 29
(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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