FormNo.3412-294RevB
PowerMax
®
724OE
Snowthrower
ModelNo.37779—SerialNo.400000000andUp
Registeratwww.T oro.com.
OriginalInstructions(EN)
*3412-294*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
MainFrameandAugerHousingAssembly.....................................................................4
PulleyandBellcrankAssembly...............................................................................6
ImpellerDriveAssembly.....................................................................................8
DriveAssembly............................................................................................10
Gearbox,AugerandImpellerAssembly.......................................................................12
24InchAugerGearcaseAssemblyNo.120-3859..............................................................14
ImpellerAssembly.........................................................................................16
EnginePulleyandBeltAssembly............................................................................18
FuelSystemandCarburetorAssembly.......................................................................20
IntakeandExhaustAssembly...............................................................................22
IgnitionandElectricalAssembly.............................................................................24
CrankcaseAssembly.......................................................................................26
GovernorAssembly........................................................................................28
PistonandHeadAssembly..................................................................................30
BlowerHousingandShroudsAssembly.......................................................................32
EngineDecalAssembly....................................................................................34
ChuteAssembly...........................................................................................36
QuickStickAssembly......................................................................................38
HandleAssembly..........................................................................................40
ControlAssembly..........................................................................................42
AttachmentsandAccessories...............................................................................44
©2017—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Contactusatwww.Toro.com.
3
PrintedintheUSA.
AllRightsReserved
MainFrameandAugerHousingAssembly
3412-294B4A2
MainFrameandAugerHousingAssembly(continued)
Ref.
PartNumber
146-80916
252-28614Washer
394-24134Nut-U
4106-4588-012
5
114-37511
6121-68331
7
119-76261
8119-7601-011
9120-7158-011
10120-71591
11120-7161-011Brace-Frame
12120-7170-031
13120-71771
Qty.Description
Screw-HWH
Skid
Screw-HWH,Plastite
Stick-Cleanout
Guide-Chute
Scraper-24Inch
Cover-Liner
Cover
Support-Chute
Cover-Belt
Ref.
PartNumber
14120-71781
15120-7179-031Handle-Lower
16120-71811
17131-64681Frame
18121-12181
213230-18
223234-294
233296-294Nut-Lock,NI
243296-47
2532144-8517
27121-68171Decal-Danger,Auger
28121-68411
303230-234
Qty.Description
5
5
Cover-Lower
Seal-Housing,LH
Plate-StudEngine
Screw-CARR
Screw-HHF
Nut-Lock,NI
Screw-HWH
Seal-Housing,RH
Screw-CARR
53412-294B
PulleyandBellcrankAssembly
3412-294B6B2
PulleyandBellcrankAssembly(continued)
Ref.
PartNumber
13-42441Pulley-Idler
292-96981
338-78202Bearing-Ball
425-56401Washer
5
117-77111Bushing-Idler
6119-76451Plate-Wheel,Friction
7
119-76481Pulley-Traction
8119-76491Retainer-Bearing
9119-7670-031Bellcrank-Drive
10119-76761
11119-76791Bracket-Plate,Traction
12120-38831
13120-38881
14120-71562Bushing-Plate,Traction
Qty.Description
Screw-Shoulder
Spring-Extension
Spring-Extension
Spring-Extension
Ref.
PartNumber
15120-7165-031Bracket-Bellcrank
16120-71661Link-Drive
17120-92712
18120-92731Arm-Idler,Traction
19120-92751
20256-2572Bushing-Nyliner
21323-291
223230-101
233296-291Nut-Lock,NI
243296-591Nut-Lock,NI
253296-731Nut-Lock,NI
2632144-85
27104-83011Nut-HF,NI
283256-241Washer-Flat
Qty.Description
7
Bracket-Anchor,Spring
Spring-Extension
Screw-HH
Bolt-CARR
Screw-HWH
73412-294B
ImpellerDriveAssembly
3412-294B8B3
ImpellerDriveAssembly(continued)
Ref.
PartNumber
13-42441Pulley-Idler
266-80601Pad-Brake
3119-33011Bolt-Pivot,Eccentric
4120-71671
5
120-9254-031
6120-92561Pivot-Brake,Impeller
Qty.Description
Bushing-Rod,Clutch
ImpellerClutchASM
Ref.
PartNumber
7
120-9257-031Arm-Brake,Impeller
8120-92761Eccentric-Brake,Impeller
9323-291
103296-421Nut-Lock,NI
113296-591Nut-Lock,NI
1232144-853
Qty.Description
Screw-HH
Screw-HWH
93412-294B
DriveAssembly
3412-294B10B4
DriveAssembly(continued)
Ref.
PartNumber
13-86643Washer-Thrust
2119-15671Wheel-Friction
3107-30392
4120-79503
5
119-76131
6119-76151
7
119-76161
8121-68353Bearing-Ball
9119-76301Trunnion
10119-76841
11120-71622Bushing-Axle
12120-71801Axle
13120-71911
14120-7193-031
15120-92662Retainer-Bearing
Qty.Description
KlikPinASM
Screw-Shoulder
Gear-Axle
Shaft-Hex
Gear-Pinion,8T ooth
Spacer-Plate,Shift
Retainer-Plate,Shift
ShiftPlateASM
Ref.
PartNumber
161
Qty.Description
LHWheelAndTireASM
16:1121-12121Wheel
16:2121-68201Tire
16:3232-271
171
Stem-Valve
RHWheelAndTireASM
17:1121-12121Wheel
17:2121-68201Tire
17:3232-271
183257-71
Stem-Valve
Key-Woodruff
193290-3432Pin-Hair
203296-564Nut-Lock,NI
2132121-91
2232144-856
2332144-861
Pin-Roll,Slotted
Screw-HWH
Screw-HWHTF
24121-68402Washer-Rubber
●
●
●
Notservicedseparately
113412-294B
Gearbox,AugerandImpellerAssembly
3412-294B12C2
Gearbox,AugerandImpellerAssembly(continued)
Ref.
PartNumber
2119-7612-031
3120-38591
4120-38602Bearing-Auger
5
120-38622Washer-Thrust
6120-9287-031
Qty.Description
ImpellerASM
GearcaseASM
LHAugerASM
Ref.
PartNumber
7
120-9290-031
9322-32
103296-424Nut-Lock,NI
11321-104
1232144-704
Qty.Description
RHAugerASM
Screw-HH
Screw-HH
Screw-HWHTF
133412-294B
24InchAugerGearcaseAssemblyNo.120-3859
3412-294B14C2A1
24InchAugerGearcaseAssemblyNo.120-3859(continued)
Ref.
PartNumber
1121-12091
1:2121-66341
1:3120-92691
2119-76404Washer-Thrust
3120-38581
43257-51
5
119-15761
6119-76351Bushing-Input
7
119-76361
Qty.Description
RHAugerGearcaseASM
Seal-Shaft
Bushing-Sleeve
Shaft-Output,Auger
Key-Woodruff
Gear-Helical,20T ooth
Collar-Thrust
Ref.
12:2121-66341
12:3120-92691
PartNumber
8121-12341
962-11501Bushing-Worm
10107-88991Pin-Dowel
11121-66341
12121-12101
13121-68321
14108-48626
Qty.Description
Shaft-Impeller,Rolled
Seal-Shaft
LHAugerGearcaseASM
Seal-Shaft
Bushing-Sleeve
Plug-Pipe,SQH
Screw-HWHTF
153412-294B