Replacing Auger/Impeller Drive Belt - Toro 38083 Operator's Manual

2. Check tension of belt by operating the auger. If
belt still slips, replace the belt. USE ONLY
GENUINE TORO REPLACEMENT PARTS
TO ENSURE BEST PERFORMANCE AND
SAFETY.
3. Make sure that auger and impeller are not
rotating when auger/impeller control lever is
disengaged. While standing in the operator
position behind the handles, look around to the
side of the auger housing. If the auger and
impeller are rotating, a large screw head on the
side of the auger housing will be rotating
(Fig. 26). If the auger and impeller are
rotating when the the engine is running and
the auger/impeller control lever is not
engaged, immediately stop the unit. If the
problem persists, bring unit to an Authorized
Toro Service Dealer for repair.
IMPORTANT: Do not operate unit if auger
and impeller rotate when auger/impeller
control lever is not engaged.
Replacing Auger/Impeller Drive
Belt
When auger/impeller drive belt (Fig. 34) becomes
worn, oil–soaked or otherwise damaged, belt
replacement is required. USE ONLY GENUINE
TORO REPLACEMENT PARTS TO ENSURE
BEST PERFORMANCE AND SAFETY.
After 5-10 hours of snowthrower operation with a
new auger/impeller drive belt, check belt to ensure
proper belt tension is being maintained.
1. Pull wire off spark plug and make sure it does
not contact the plug accidentally (Fig. 25).
2. Remove (3) screws holding belt cover in place
and set cover aside (Fig. 32).
3. Loosen auger brake arm assembly by loosening
rear screw and removing front screw that fasten
auger brake arm assembly to frame (Fig. 33).
18
4. Remove idler pulley spring (Fig. 33). Let brake
arm assembly hang free but out of the way.
5. Remove (2) screws, (2) washers and (2) lock
washers securing belt guide (Fig. 34).
6. Remove engine crankshaft screw, lock washer
and washer (Fig. 34).
7. Separate and remove engine pulley sheave
(Fig. 34).
8. Remove auger/impeller drive belt from center
engine pulley and large auger/impeller pulley
(Fig. 34).
9. Pull idler pulley outward and install new belt
around large auger/impeller pulley (Fig. 34).
Next, loop belt in front of center engine pulley,
making sure that belt is on inside of idler pulley
and belt guide (Fig. 34).
10. Reinstall engine pulley sheave, washer, lock
washer and engine crankshaft screw. Make sure
the indexing rib in the engine pulley sheave is
aligned with the indexing notch in the center
engine pulley (Fig. 35).
11. Make sure brake pad is properly installed on
brake arm. Angled cut-off on brake pad must be
positioned as shown in Figure 36.
12. Reinstall (2) screws that secure auger brake arm
assembly. Make sure tabs fit into holes in left
side of machine (Fig. 37).
13. While someone squeezes the auger/impeller
control lever against the handgrip, reinstall belt
guide using (2) screws, (2) washers and (2) lock
washers removed previously. Check and readjust
belt guide, making sure it does not contact any
part of the engine pulley (Fig. NO TAG & Fig.
20).
14. Check and adjust auger drive linkage. Refer to
steps 5–7 of Install Auger/Impeller Drive
Control Linkage, page 9.
15. Reinstall idler pulley spring.
16. Reinstall belt cover with (3) screws.