Toro 20978 Parts Catalogue

PartsCatalog

FormNo.3398-294RevB

TimeMaster76cm

LawnMower

ModelNo.20978—SerialNo.400000000andUp

Registeratwww.T oro.com.
OriginalInstructions(EN)

*3398-294*B

OrderingReplacementParts

Toorderreplacementparts,pleasesupplythepartnumber,
thequantity,andthedescriptionofeachpartdesired.

UnderstandingReferenceNumbers

Eachidentiedpartinanillustrationhasareference
number.Thereferencenumberforapartalsoappearsin
thepartslist,alongwithotherinformationaboutthepart.

Thiscatalogusestwospecialreferencenumberformats,
onetoindicatepartsinaserviceassemblyandanotherto
indicatethequantityofagivenpartinanillustration.

ServiceAssemblyReferenceNumbers

Partsinserviceassemblieshavereferencenumbersinthe
forma:b.Thearepresentsthereferencenumberofthe
entireserviceassemblyandthebrepresentsasequential
numberuniquetoeachpartwithintheserviceassembly .

Forexample,awheelassemblymightbeidentiedby
referencenumber6,thetireby6:1,thevalveby6:2,and
thewheelby6:3.Whenyouordertheassemblyidentied
byreferencenumber6,youreceiveallpartsidentiedby
referencenumbers6:1,6:2,and6:3.However,youmay
alsoorderanypartindividually .Referencenumbersofthis
typeappearinillustrationandinpartslists.

ReferenceNumbersIndicatingQuantity

Inanillustration,ifareferencenumberindicatesmorethan
onepart,thereferencenumberhastheformnXy .Then
representsthequantityofthepart,theXisthemultiplication
symbol,andtheyrepresentsthereferencenumber.

Forexample,inanillustration,thereferencenumber2X37
meansthattwoofthepartsidentiedbyreferencenumber
37areindicated.

2

Contents

HousingAssembly..........................................................................................4

SpindleandBladeAssembly.................................................................................6

DischargeChuteAssembly..................................................................................8

BagAssembly.............................................................................................10

EngineAssembly..........................................................................................12

FrontWheelandHeight-of-CutAssembly.....................................................................14

RearWheelandHeight-of-CutAssembly......................................................................16

HandleandElectricalAssembly..............................................................................18

AttachmentsandAccessories...............................................................................20

©2017—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420

Contactusatwww.Toro.com.

3

PrintedintheUSA.

AllRightsReserved

HousingAssembly

3398-294B4A2

HousingAssembly(continued)

Ref.

11:3131-45141Decal-Warning

PartNumber

1136-58741
3136-5908-011Frame
4133-81771
5

3230-52
6120-33441Rod-Release,Handle
7

120-70181
8121-91141Bracket-Door,LH
9121-91151Bracket-Door,RH

11120-70481

12115-28591
13114-79241
1446-80913
15107-74972
16120-52251Plug-Mulch
17120-62411
1849-20408

Qty.Description

HousingASM

Chute
Screw-CARR

Grip-Lever

RearDeectorASM

Spring-Torsion
Spring-Torsion
Screw-HWH
Bracket-Cable,Traction

Shield-Trailing
Screw-HWHTF

Ref.

99:1125-25421Plate-Frame
99:23229-33
99:33296-423Nut-Lock,NI

PartNumber

21117-10922
243296-292Nut-Lock,NI
25121-58101
26121-5793-031Door-Access
27121-58402Fastener
28125-25071Decal-AccessPanel
29130-2352-011
30125-5081-011Plate-Deck
3132144-861
331-3232831
34323-391
353296-391Nut-Lock,NI
99125-50721FramePlateKit

Qty.Description

Screw-PTH

Cover-Belt

Bafe-Control

Screw-HWHTF
Spacer-Shield
Screw-HH

Screw-CARR

53398-294B

SpindleandBladeAssembly

3398-294B6A3

SpindleandBladeAssembly(continued)

Ref.

PartNumber

1121-91072

1:2120-79352
1:3100-10482Bearing-Ball

232144-579
3120-52341
4120-52351
5

121-91002
6130-66641
7

109-95052
83296-192Nut-Hex
963-74001Washer-Rebound

10133-81021
11121-23052
12120-94901
1391145241Bolt-T AP ,HH
143256-34Washer-Flat
15322-71
163296-293Nut-Lock,NI

Qty.Description

SpindleASM
Spacer

Screw
Shaft-Spindle
Shaft-Spindle
Sprocket
Pulley-Brake,Spindle
Washer-Spring

BrakeArmASM
Washer-Friction,Composite
Spacer

Screw-HH

Ref.

17:2131-45041Adapter-Bore
17:3125-25331

PartNumber

17131-45292PulleyKit

18120-33481Bracket-Idler
19120-70242
20120-33351
21120-5245-031
22120-52362Adapter-Blade
23121-58081
24125-24662Bolt-Blade
2549-20402
26120-70821Pulley-Idler
27322-61
283296-471Nut-Lock,NI
29116-6358-032Blade-Rotary
30121-23361
33322-91
35133-19641

Qty.Description

Plug-Cap

Screw-Shoulder,HHF
Belt-Synchronous
Guide-Belt,Spindle

Spring-Extension,Brake

Screw-HWHTF

Screw-HH

Spring-Flat
Screw-HH
Hose-Coolant

73398-294B

DischargeChuteAssembly

3398-294B8A4