FormNo.3385-221RevB
PowerClear
®
721QZR
Snowthrower
ModelNo.38743—SerialNo.315000001andUp
Registeratwww.T oro.com.
OriginalInstructions(EN)
*3385-221*B
OrderingReplacementParts
Toorderreplacementparts,pleasesupplythepartnumber,
thequantity,andthedescriptionofeachpartdesired.
UnderstandingReferenceNumbers
Eachidentiedpartinanillustrationhasareference
number.Thereferencenumberforapartalsoappearsin
thepartslist,alongwithotherinformationaboutthepart.
Thiscatalogusestwospecialreferencenumberformats,
onetoindicatepartsinaserviceassemblyandanotherto
indicatethequantityofagivenpartinanillustration.
ServiceAssemblyReferenceNumbers
Partsinserviceassemblieshavereferencenumbersinthe
forma:b.Thearepresentsthereferencenumberofthe
entireserviceassemblyandthebrepresentsasequential
numberuniquetoeachpartwithintheserviceassembly .
Forexample,awheelassemblymightbeidentiedby
referencenumber6,thetireby6:1,thevalveby6:2,and
thewheelby6:3.Whenyouordertheassemblyidentied
byreferencenumber6,youreceiveallpartsidentiedby
referencenumbers6:1,6:2,and6:3.However,youmay
alsoorderanypartindividually .Referencenumbersofthis
typeappearinillustrationandinpartslists.
ReferenceNumbersIndicatingQuantity
Inanillustration,ifareferencenumberindicatesmorethan
onepart,thereferencenumberhastheformnXy .Then
representsthequantityofthepart,theXisthemultiplication
symbol,andtheyrepresentsthereferencenumber.
Forexample,inanillustration,thereferencenumber2X37
meansthattwoofthepartsidentiedbyreferencenumber
37areindicated.
2
Contents
MainFrame,ChuteandWheelAssembly......................................................................4
CluchCableandBeltDriveAssembly..........................................................................6
RotorAssembly............................................................................................8
EngineAssembly..........................................................................................10
EngineAssemblyNo.1.....................................................................................12
EngineAssemblyNo.2.....................................................................................14
EngineAssemblyNo.3.....................................................................................16
ShroudandFuelTankAssembly.............................................................................18
ChuteControlAssembly....................................................................................20
UpperHandleControlAssembly.............................................................................22
HandleChuteControlAssembly.............................................................................24
AttachmentsandAccessories...............................................................................26
©2017—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Contactusatwww.Toro.com.
3
PrintedintheUSA.
AllRightsReserved
MainFrame,ChuteandWheelAssembly
3385-221B4A2
MainFrame,ChuteandWheelAssembly(continued)
Ref.
PartNumber
11070692
232144-114
332144-863
4108-49432Flange-Bearing
5
110-93801
656-65902Bolt-Wheel
7
3296-392Nut-Lock,NI
8108-48841
9114-37811
10110-93531Washer-Rubber
11100-10482Bearing-Ball
1252-72802Washer-Thrust
1332144-43
Qty.Description
Clip
Screw-HWHTF
Screw-HWHTF
Screw-HWH
Blade-Scraper
Spacer-Bearing,RH
Screw-HWH
Ref.
PartNumber
14108-4868-031Housing-Auger
1594-44961
16108-49051Brace-Frame
17108-49191
18108-49062
1946-80913
20108-48711
21117-23092
2232112-142Nut-Push
2332144-853
24108-4893-031
281-6335452
297012432
Qty.Description
Screw-PPH
Guide-Cable,Clutch
Spring-Extension
Screw-HWH
Chute-Lower
WheelASM
Screw-HWH
Cover-Belt
Spacer
Screw-HWHTF
53385-221B
CluchCableandBeltDriveAssembly
3385-221B6B2
CluchCableandBeltDriveAssembly(continued)
Ref.
PartNumber
13234-291
2108-49381
3108-49251Washer
4108-49161Bushing-Pivot
5
3296-291Nut-Lock,NI
6121-66241Pulley
7
3290-4562Washer-Belleville
8110-93811
11121-66221Belt-Drive
Qty.Description
Screw-HHF
Clip-Spring,Brake
Screw-HH
Ref.
PartNumber
12323-291
13114-37851Pulley-Idler
14115-56821
15114-37821Arm-Idler
1632152-21
17121-66301
18125-79271Pulley-Engine
19121-66461
Qty.Description
Screw-HH
Cable-Clutch
Nut-Lock,Cone
Spring-Extension
Screw-HH
73385-221B
RotorAssembly
3385-221B8B3
RotorAssembly(continued)
Ref.
PartNumber
155-93704
266-6600-032
3321-44
43296-5613Nut-Lock,NI
Qty.Description
Spacer-Blade,Rotor
Half-Rotor
Screw-HH
Ref.
PartNumber
5
321-81
699-93132Blade-Rotor
7
84-19718
8108-4894-031Rotor
Qty.Description
Screw-HH
Screw
93385-221B