FormNo.3378-839RevA
PowerMax724OESnowthrower
ModelNo.38810—SerialNo.314000001andUp
Registeratwww.T oro.com.
OriginalInstructions(EN)
*3378-839*A
OrderingReplacementParts
Toorderreplacementparts,pleasesupplythepartnumber,
thequantity ,andthedescriptionofeachpartdesired.
UnderstandingReferenceNumbers
Eachidentiedpartinanillustrationhasareference
number.Thereferencenumberforapartalsoappearsin
thepartslist,alongwithotherinformationaboutthepart.
Thiscatalogusestwospecialreferencenumberformats,
onetoindicatepartsinaserviceassemblyandanotherto
indicatethequantityofagivenpartinanillustration.
ServiceAssemblyReferenceNumbers
Partsinserviceassemblieshavereferencenumbersinthe
forma:b.Thearepresentsthereferencenumberofthe
entireserviceassemblyandthebrepresentsasequential
numberuniquetoeachpartwithintheserviceassembly.
ListofAbbreviations
AR:asrequired
ASM:assembly
BBC:bladebrakecontrol
BHTF:buttonheadthreadforming
CARR:carriage
CCW:counterclockwise
CW:clockwise
DEG:degrees
DPA:DualPointAdjustment
ECM:electroniccontrolmodule
EXT:external
FH:athead
GA:gauge
HD:heavy-duty
HF:hexange
HH:hexhead
HHF:hexheadange
HHFTF:hexheadangethread
forming
HJ:hexjam
HLH:hexlaghead
HOC:height-of-cut
HSBH:hexsocketbuttonhead
HSFH:hexsocketathead
HSH:hexsockethead
HWH:hexwasherhead
HWHTF:hexwasherheadthread
forming
HYD:hydraulic
LH:lefthand
LP:LiqueedPetroleumGas
LPG:LiqueedPetroleumGas
NI:nyloninsert
NPTF:nationalpipethreadne
PFH:phillipsathead
PPH:phillipspanhead
PPHTF:phillipspanheadthread
forming
PRH:phillipsroundhead
PTH:phillipstrusshead
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.
PTO:power-take-off
RH:righthand
ROPS:roll-overprotectionsystem
RRB:rearrollerbrush
SFH:slottedllisterhead
SHH:slottedhexhead
SHWH:slottedhexwasherhead
SPH:slottedpanhead
SQH:squarehead
SRH:slottedroundhead
STD:standard
TAP:selftapping
TTH:torxtrusshead
2
Contents
Frame,HousingandBypassAssembly........................................................................4
PulleysandBellcrankAssembly..............................................................................5
ImpellerDriveAssembly.....................................................................................6
DriveAssembly.............................................................................................7
Gearbox,AugerandImpellerAssembly........................................................................8
24InchAugerGearcaseAssemblyNo.120-3859...............................................................9
ImpellerAssembly.........................................................................................10
EngineAssembly..........................................................................................11
ChuteAssembly...........................................................................................12
HandleAssembly..........................................................................................13
ControlAssembly..........................................................................................14
QuickLeverAssembly......................................................................................15
AttachmentsandAccessories...............................................................................16
©2013—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Contactusatwww.Toro.com.
3
PrintedintheUSA.
AllRightsReserved
Frame,HousingandBypassAssembly
Ref.
3378-839A4A2
PartNumber
146-80916
252-28614Washer
394-24134U-Nut
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
ChuteSupportASM
Cover-Belt
Ref.
17:2121-68171Decal-Danger,Auger
PartNumber
14120-71781
15120-7179-031Handle-Lower
16120-71811
17121-68101
18121-12181
213230-18
223234-294
233296-294Nut-Lock,NI
243296-47
2532144-8517
28121-68411
303230-234
Qty.Description
Cover-Lower
Seal-Housing,LH
FrameASM
EngineStudPlateASM
5
Screw-CARR
Screw-HHF
5
Nut-Lock,NI
Screw-HWH
Seal-Housing,RH
Screw-CARR
PulleysandBellcrankAssembly
Ref.
B253378-839A
PartNumber
13-42441Pulley-Idler
292-96981
3100-10482Bearing-Ball
425-56401Washer
5
117-77111Bushing-Idler
6119-76451Plate-Wheel,Friction
7
119-76481
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
TractionPulleyASM
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-Flange,NI
283256-241Washer-Flat
Qty.Description
7
Bracket-Anchor,Spring
Spring-Extension
Screw-HH
Screw-CARR
Screw-HWH
ImpellerDriveAssembly
Ref.
3378-839A6B3
PartNumber
13-42441Pulley-Idler
266-80601Pad-Brake
3119-33011Bolt-Pivot,Eccentric
4120-71671
5
120-9254-031
6120-92561Pivot-Brake,Impeller
7
120-9257-031Arm-Brake,Impeller
8120-92761Eccentric-Brake,Impeller
9323-291
103296-421Nut-Lock,NI
113296-591Nut-Lock,NI
1232144-853
Qty.Description
Bushing-Rod,Clutch
ImpellerClutchASM
Screw-HH
Screw-HWH