
FormNo.3393-605RevA
24in,28inand32inGearCase
PowerThrow
Snowthrower
ModelNo.74-1560
ModelNo.74-1561
ModelNo.74-1562
®
andPowerShift
®
Registeratwww.T oro.com.
OriginalInstructions(EN)
*3393-605*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
HP:highpressure
HSBH:hexsocketbuttonhead
HSFH:hexsocketathead
HSH:hexsockethead
HWH:hexwasherhead
HWHTF:hexwasherheadthread
forming
HYD:hydraulic
LH:lefthand
LP:lowpressure
LPG:LiqueedPetroleumGas
NI:nyloninsert
NPTF:nationalpipethreadne
PFH:phillipsathead
PPH:phillipspanhead
PPHTF:phillipspanheadthread
forming
PRH:phillipsroundhead
PTH:phillipstrusshead
PTO:power-take-off
RH:righthand
ROPS:roll-overprotectionsystem
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.
RRB:rearrollerbrush
SFH:slottedllisterhead
SHH:slottedhexhead
SHWH:slottedhexwasherhead
SPH:slottedpanhead
SQH:squarehead
SRH:slottedroundhead
STD:standard
TAP:selftapping
TTH:torxtrusshead
2

Contents
24InchGearCaseAssembly.................................................................................4
28InchGearCaseAssembly.................................................................................6
32InchGearCaseAssembly.................................................................................8
©2015—TheT oro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Contactusatwww .Toro.com.
3
PrintedintheUSA.
AllRightsReserved

24InchGearCaseAssembly(continued)
Ref.
PartNumber
1108-73251
1:11
1:1:2112-66351
1:1:37-00451
2252-712Washer-Thrust
462-01201
5
108-73271
5:11
5:1:2112-66351
5:1:37-00451
662-15301
Qty.Description
LHAugerGearcaseASM
Gearcase-Auger,LH
Bushing-Sleeve
Seal-Oil
Gear-Helical
RHAugerGearcaseASM
Gearcase-Auger,RH
Bushing-Sleeve
Seal-Oil
Shaft-Auger
Ref.
PartNumber
93257-101
●
1066-78111
11253-1491
Qty.Description
Key-Woodruff
Shaft-Impeller
Seal-Oil
1237-65601Bushing-Input
1362-11501Bushing-Worm
14252-782Washer-Thrust
15252-761Bearing-Thrust
●
1632151-331Ring-Retaining,Ext
17108-48629
18121-68321
19108-73301
Screw-HWHTF
Plug-Pipe,SQH
Gasket-Gearcase,Auger
●
Notservicedseparately
53393-605A

28InchGearCaseAssembly(continued)
Ref.
PartNumber
1108-73251
1:11
1:1:2112-66351
1:1:37-00451
2252-712Washer-Thrust
462-01201
5
108-73271
5:11
5:1:2112-66351
5:1:37-00451
7
62-15311
Qty.Description
LHAugerGearcaseASM
Gearcase-Auger,LH
Bushing-Sleeve
Seal-Oil
Gear-Helical
RHAugerGearcaseASM
Gearcase-Auger,RH
Bushing-Sleeve
Seal-Oil
Shaft-Auger
Ref.
PartNumber
93257-101
●
1066-78111
11253-1491
Qty.Description
Key-Woodruff
Shaft-Impeller
Seal-Oil
1237-65601Bushing-Input
1362-11501Bushing-Worm
14252-782Washer-Thrust
15252-761Bearing-Thrust
●
1632151-331Ring-Retaining,Ext
17108-48629
18121-68321
19108-73301
Screw-HWHTF
Plug-Pipe,SQH
Gasket-Gearcase,Auger
●
Notservicedseparately
73393-605A

32InchGearCaseAssembly(continued)
Ref.
PartNumber
1108-73251
1:11
1:1:2112-66351
1:1:37-00451
2252-712Washer-Thrust
462-01201
5
108-73271
5:11
5:1:2112-66351
5:1:37-00451
862-15321
Qty.Description
LHAugerGearcaseASM
Gearcase-Auger,LH
Bushing-Sleeve
Seal-Oil
Gear-Helical
RHAugerGearcaseASM
Gearcase-Auger,RH
Bushing-Sleeve
Seal-Oil
Shaft-Auger
Ref.
PartNumber
93257-101
●
1066-78111
11253-1491
Qty.Description
Key-Woodruff
Shaft-Impeller
Seal-Oil
1237-65601Bushing-Input
1362-11501Bushing-Worm
14252-782Washer-Thrust
15252-761Bearing-Thrust
●
1632151-331Ring-Retaining,Ext
17108-48629
18121-68321
19108-73301
Screw-HWHTF
Plug-Pipe,SQH
Gasket-Gearcase,Auger
●
Notservicedseparately
93393-605A