Toro 74228 Parts Catalogue
Form No. 3325–859
Z255
Z Master SFS Side Discharge Mower
Model No. 74228—210000001 and Up
Parts Catalog
Ordering Replacement Parts
To order replacement parts, please supply: the part
number, the quantity, and the description of each
part desired.
Understanding Reference Numbers
Each identified part in an illustration has a reference
number. The reference number for a part also appears in
the parts list, along with other information about the part.
This catalog uses two special reference number formats,
one to indicate parts in a service assembly and another
to indicate the quantity of a given part in an illustration.
Service Assembly Reference Numbers
Parts in service assemblies have reference numbers in
the form a:b.
the entire service assembly and the b represents a
sequential number unique to each part within the service
assembly.
The a represents the reference number of
The TORO Company — 2001
All Rights Reserved
For example, a wheel assembly might be identified by
reference number 6, the tire by 6:1, the valve by 6:2,
and the wheel by 6:3. When you order the assembly
identified by reference number 6, you receive all parts
identified by reference numbers 6:1, 6:2, and 6:3.
However, you may also order any part individually.
Reference numbers of this type appear in illustrations
and in part lists.
Reference Numbers Indicating Quantity
In an illustration, if a reference number indicates more
than one part, the reference number has the form nX y.
The n represents the quantity of the part, the X is the
multiplication symbol, and the y represents the reference
number.
For example, in an illustration, the reference number
2X 37 means that two of the parts identified by reference
number 37 are indicated.
3325–859
Contents
Description Page Description Page
Front Frame Assembly 4. . . . . . . . . . . . . . . . . . . . .
Caster and Wheel Assembly 5. . . . . . . . . . . . . . . .
Rear Frame and Wheel Assembly 6. . . . . . . . . . .
Brake and Wheel Hub Assembly 7. . . . . . . . . . . .
Control Panel Assembly 8. . . . . . . . . . . . . . . . . . . .
Hydraulic System Assembly 9. . . . . . . . . . . . . . . .
Tank and Fuel Line Assembly 11. . . . . . . . . . . . . . .
Shield and Clutch Assembly 12. . . . . . . . . . . . . . . .
Idler Assembly 14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical System Assembly 15. . . . . . . . . . . . . . . . .
Frame and Deck Assembly 16. . . . . . . . . . . . . . . . .
Deck, Deflector and Wheels Assembly 17. . . . . . .
Deck and Pulleys Assembly 18. . . . . . . . . . . . . . . .
Deck, Belts and Idler Arm Assembly 19. . . . . . . . .
Stand Assembly 20. . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankshaft Assembly
(Engine: Kohler CH25S PS–68606) 21. . . . . . . .
Oil Pan/Lubrication Assembly
(Engine: Kohler CH25S PS–68606) 23. . . . . . . .
Head/Valve/Breather Assembly
(Engine: Kohler CH25S PS–68606) 24. . . . . . . .
Ignition/Electrical Assembly
(Engine: Kohler CH25S PS–68606) 25. . . . . . . .
Blower Housing and Baffle
(Engine: Kohler CH25S PS–68606) 26. . . . . . . .
Starting System Assembly
(Engine: Kohler CH25S PS–68606) 27. . . . . . . .
Fuel System Assembly
(Engine: Kohler CH25S PS–68606) 28. . . . . . . .
Engine Controls Assembly
(Engine: Kohler CH25S PS–68606) 30. . . . . . . .
Air Intake/Filtration Assembly
(Engine: Kohler CH25S PS–68606) 31. . . . . . . .
Exhaust Assembly
(Engine: Kohler CH25S PS–68606) 32. . . . . . . .
Accessories
Description Model / Part No. Description Model / Part No.
Seat–Suspension, High 74210. . . . . . . . . . . . . . . . . . . .
Foot Lift Assist 78473. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ROPS Kit 78480. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hitch Kit 99–8925. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blade ASM–Atomic 104–1301. . . . . . . . . . . . . . . . . . . .
Striping Kit 30121. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recycler Kit 59225. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mulching Kit 59227. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
Part Description Abbreviations
Part descriptions in this catalog may include the following abbreviations.
Abbreviation Meaning Abbreviation Meaning
AR as required. . . . . . . . . . . . . . . . .
ASM assembly. . . . . . . . . . . . . . . .
CARR carriage. . . . . . . . . . . . . .
DEG degrees. . . . . . . . . . . . . . . .
FH flat head. . . . . . . . . . . . . . . . .
GA gauge. . . . . . . . . . . . . . . . .
HF hex flange. . . . . . . . . . . . . . . . .
HH hex head. . . . . . . . . . . . . . . . .
HHF hex head flange. . . . . . . . . . . . . . . .
HLH hex lag head. . . . . . . . . . . . . . . .
HJ hex jam. . . . . . . . . . . . . . . . . .
HOC height-of-cut. . . . . . . . . . . . . . . .
HS hex socket. . . . . . . . . . . . . . . . .
HSBH hex socket button head. . . . . . . . . . . . . .
HSFH hex socket flat head. . . . . . . . . . . . . . .
HSH hex socket head. . . . . . . . . . . . . . . .
HWH hex washer head. . . . . . . . . . . . . . .
HWHTF hex washer head. . . . . . . . . . . . .
thread forming
HYD hydraulic. . . . . . . . . . . . . . . .
INC incorporated. . . . . . . . . . . . . . . . .
LH left hand. . . . . . . . . . . . . . . . .
NI nylon insert. . . . . . . . . . . . . . . . . .
PPH Phillips pan head. . . . . . . . . . . . . . . .
PTH Phillips truss head. . . . . . . . . . . . . . . .
PTO power take off. . . . . . . . . . . . . . . .
RH right hand. . . . . . . . . . . . . . . . .
SFH slotted fillister head. . . . . . . . . . . . . . . .
SHH slotted hex head. . . . . . . . . . . . . . . .
SQH square head. . . . . . . . . . . . . . . .
SHWH slotted hex washer head. . . . . . . . . . . . . .
SPH slotted pan head. . . . . . . . . . . . . . . .
SRH slotted round head. . . . . . . . . . . . . . . .
STD standard. . . . . . . . . . . . . . . .
TAP self tapping. . . . . . . . . . . . . . . .
TTH Torx truss head. . . . . . . . . . . . . . . .
WH wing head. . . . . . . . . . . . . . . . .
3325–859
3
3325–859
22
15
37
18
24
21
10
1:6
1:5
19
22
5
24
17
16
24
20
10
25
11
1:4
36
1
10
1:3
11
13
27
35:3
3:5
1:2
35:2
12
35:3
14
35:4
3
7
8
35:3
9
10
35:7
35:6
35:5
35:4
25
24
23
26
35:2
35:1
35:3
3:4
3:3
Sheet No.: 2
3:2
6
Front Frame Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 104–5131 1 Frame ASM W/ Decals
– 52
1:2 1–633818 1 Decal–Warning
1:3 1–811010 2 Plug
1:4 302–19 5 Fitting–Grease
1:5 94–1291 2 Bushing–Special
1:6 104–7759 1 Decal–Warning
3 100–6509 1 Floorpan ASM
3:2 1–633553 3 Pad–Antiskid
3:3 1–633766 1 Decal–Check
3:4 98–5954 1 Decal–Missing, Cover
3:5 1–633737 1 Decal–Z–Master
5 1–632324–03 1 Lever–Lift
6 1–633295 1 Grip–Lever, Lift
7 1–632219–03 1 Arm–Lift, Deck
8 1–633325 1 Spring–Compression
9 3256–24 1 Washer–Flat
10 3296–39 5 Nut–Lock, NI
11 32151–103 5 Ring–Snap
12 1–633068 2 Arm–Lift, Deck
13 3272–10 2 Pin–Cotter
14 1–808284 2 Pin–Clevis
15 1–633889–01 1 Plate–Lift, Deck
16 1–632899–01 1 Plate–Lift, Deck
17 1–633082 1 Bushing–Lever, Lift
18 1–633080 1 Bushing–Lever, Lift
19 323–13 1 Screw–HH
20 1–633097 1 Pin–Hitch W/Lanyard
21 1–806005 1 Pin–Cotter, Hair
22 323–9 2 Screw–HH
23 98–5975 12 Washer–Belleville
24 3290–357 15 Nut–Flange, Lock
25 323–6 3 Screw–HH
26 323–7 12 Screw–HH
27 3256–29 4 Washer–Flat
35 2 Spring ASM
35:1 1–633096 1 Rod–Lift, Deck
35:2 1–633441 2 Swivel–Deck Mount,
Rear
35:3 3217–11 4 Nut–Hex
35:4 3218–6 2 Nut–Jam
35:5 3256–7 1 Washer–Flat
35:6 1–653009 1 Spring–Compression
35:7 3256–27 1 Washer–Flat
36 1–633706 1 Decal–Height, Deck
37 1–633345 1 Decal–Height, Deck
4
1
2
3
4
3325–859
1 1:5
1 1:4
1 1:1
11
22
1 1:6
5
4
7
8
1 1:6:1
5
21
1 1:6:2
1 1:6:3
1 1:3
Sheet No.: 3
Caster and Wheel Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–543513 2 Cap–Grease
2 3296–51 2 Nut–Lock, NI
3 1–633508 6 Washer–Bellville
4 254–94 4 Bearing–Taper, Cone
5 254–72 4 Bearing–Taper, Cup
7 1–543511 2 Seal–Grease
8 1–642111–01 2 Caster
11 1–644251 2 Caster Wheel ASM
11:1 1–633585 2 Bearing–Cone, Taper
11:3 1–633959 1 Spacer–Caster, Front
11:4 1–633580 2 Seal–Bearing
11:5 1–633581 2 Spacer–Bearing
11:6 1 Wheel & Tire ASM
11:6:1 1–523009 1 Tire
11:6:2 1–633987 1 Wheel
11:6:3 1–633584 2 Bearing–Cup
21 325–24 2 Screw–HH
22 3296–45 2 Nut–Lock, NI
5
3325–859
30
34
2:3
2:4
2:7
2:2
2
2:5
2:1
2:6
20
21
14
13:2
13
23
16
11:2
17
9
27
24
31
33
28
25
11
15
26
42
22
10
13:4
13:3
4
44
Rear Frame and Wheel Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–633964–03 1 Stop–Brake, Park
2 1–633705 1 Seat W/Tracks
2:1 103–0290 1 Cushion–Bottom, Seat
2:2 104–7754 1 Cushion–Back, Seat
2:3 1–633710 1 Cushion–Armrest, RH
2:4 1–633711 1 Cushion–Armrest, LH
2:5 1–543401 4 Spacer–Track
2:6 1–643255 1 Grp,Track Seat 4”
2:7 1–633859 1 Frame–Seat
4 322–3 6 Screw–HH
5 323–6 2 Screw–HH
9 1–633696 1 Cable–Throttle
10 1–603336 1 Control–Choke
11 100–4261 1 Rear Frame ASM
11:2 103–0245 1 Decal–Console, Top
12 1–653010 2 Wheel & Tire ASM
12:1 1–653160 1 Tire
12:2 1–653158 1 Wheel
13 99–4623 1 Console ASM
13:2 100–4311 1 Decal–Panel, Control
13:3 103–0262 1 Decal–Valve, Fuel
13:4 98–4387 1 Decal–Protection, Ear
14 1–632187–03 1 Frame–Seat
15 242–50 8 Nut–Lug
16 1–633293 1 Rod–Holdup, Seat
17 322–5 1 Screw–HH
18
19
21
1
29
12:1
5
12:2
Sheet No.: 4
12
18 323–39 2 Screw–HH
19 3296–2 2 Nut–Lock
20 3296–29 1 Nut–Lock
21 3296–39 4 Nut–Lock, NI
22 1–807513 2 Bolt–CARR
23 32128–20 4 Nut–HF
24 1–513762 1 Clip–Loom
25 1–303335 1 Tie–Plastic
26 1–513592 1 Knob–Ball, Red
27 321–4 1 Screw–HH
28 32128–33 1 Nut–HF
29 1–513658 2 Bumper–Catcher,
Grass
30 2412–120 2 R–Clamp
31 32104–76 2 Screw
33 74–0720 1 Tube–Manual
34 99–4693 1 Decal–Toro
42 1–633736 1 Decal–Toro, Z255
44 3256–23 6 Washer–Flat
6
12
3325–859
5
27
13
19
17
3
15:1
23
15:2
15
28
Sheet No.: 5
24
18
27
1
1
4
27
19
13
22
14
23
25
23
3
26
10
21
6
30
26
2
9
23
31
13
29
27
19
11
20
7
Brake and Wheel Hub Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–513140 2 Bearing–Control
2 1–633454 2 Spring–Brake
3 1–633477 3 Rod–Brake
4 1–634500 1 Brake Lever/Grip ASM
4:2 1–633268 1 Grip–Lever, Brake
5 1–632217–03 1 Shaft–Brake
6 103–0352–03 2 Bracket–Brake
7 1–523157 2 Washer–Spacer
9 103–0355 2 Band–Brake
10 1–633380 4 Spacer–Wheel, Short
11 1–633382 4 Spacer–Wheel, Long
12 1–633102 2 Bearing–Flange, Side
13 1–633131 4 Yoke–Linkage, Brake
14 1–633144 2 Pin–Trunion
15 103–0590 2 Hub–Wheel W/Studs
15:1 103–0589 1 Hub–Wheel
15:2 1–633926 4 Stud–Wheel
18 323–4 4 Screw–HH
19 1–808285 4 Pin–Clevis
20 325–17 8 Screw–HH
21 1481 2 Fitting–Grease
22 103–0131 8 Nut–Square
23 3219–3 8 Nut–HH
24 3290–357 4 Nut–Flange, Lock
25 3253–7 8 Washer–Lock
26 3256–4 4 Washer–Flat
27 3272–10 7 Pin–Cotter
28 1–806800 2 Pin–Cotter
29 322–9 6 Screw–HH
30 103–0384 6 Spacer
31 103–0374 2 Retainer–Band, Brake
7
3325–859
11
22
11:1
23
2
34
3
8
18
25
14
21
34
16
35
20
Control Panel Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–303105 2 Yoke–Adjustable
2 98–5975 4 Washer–Belleville
3 1–523027 2 Damper–Control
4 1–543017 2 Balljoint–RH
5 1–603735 2 Bushing–Flanged,
Nylon
6 1–603737 2 Bolt–Return, Neutral
7 1–603807 2 Spring–Return,
Neutral
8 1–403180 4 Screw–HH
11 103–0632 1 RH Lever/Grip ASM
11:1 1–633257 1 Grip–Control, Motion
12 1–632208 2 Wld,Pump Control Arm
13 1–642319 1 Control–Motion, LH
14 1–642320 1 Control–Motion, RH
15 1–633153 2 Linkage–Pump/Lever
16 1–633102 4 Bearing–Flange, Side
17 1–633152 2 Balljoint–Thread, LH
18 103–0407 2 Arm–Shaft, Control
20 322–6 4 Screw–HH
21 323–4 8 Screw–HH
22 323–6 4 Screw–HH
23 323–9 6 Screw–HH
24 1–803022 2 Screw
25 3296–39 6 Nut–Lock, NI
26 3219–2 10 Nut–Hex
27
5
7
6
8
3
34
8
15
26
20
4
30
12
24
34
32
34
29
26
17
30
13
1
34
28
26
33
27 1–804524 2 Nut
28 3220–2 2 Nut
29 3256–2 2 Washer–Flat
30 3256–3 4 Washer–Flat
32 3272–5 2 Pin–Cotter
33 1–808280 2 Pin–Clevis
34 32128–20 16 Nut–HF
35 3290–357 8 Nut–Flange, Lock
*37 103–0631 1 LH Lever/Grip ASM
Sheet No.: 6
* Not illustrated
8
10
46
40
41
28
31
35
13
47
29
39
3325–859
36
12
44
45
37
40
7:1
21
33
30
41
28
7
1
10:2
10
10:1
10:2
10
10:1
1 1:1
11:2
Sheet No.: 7
1
47
43
51
21
22
11
20
3
17
6
32
24
17
25
17
7
26
2
19
27
14
16
16
15
16
32
2:2
48
18
5
9
34
51
20:1
20
47
17
33:1
21
8
22
33:1
33:3
46
38
21:1
21:2
11
Hydraulic System Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–633774 2 Hose–Upper
2 99–4625 1 Hydraulic Tank ASM
2:2 1–523552 1 Decal–Tank, Hydraulic
3 1–513006 1 Filter–Head
5 1–513167 1 Cap
6 1–633750 1 Filter–HYD
6 1–633752 1 Filter–HYD, Winter
7 1–513840 2 Fitting–90
7:1 237–42 1 O–Ring
8 1–522217 1 Low Pressure Hose
ASM
9 1–523103 1 Gasket–Cap, Tank
10 1–633786 4 Fitting–90
10:1 237–80 1 O–Ring
10:2 1–603992 1 O–Ring
11 1–523328 2 Motor–Wheel
11:1 1–809036 1 Nut–HH
11:2 3257–42 1 Key–Woodruff
*11:99 1–000099 1 Kit–Seal
*11:99 1–000139 1 Kit–Bearing
12 1–603384 1 Bushing–Pivot, Idler
13 1–603413 1 Spring–Extension
14 1–603721 1 Fitting–Tee, Hose
15 1–603722 1 Fitting–Tee, Hose
16 1–603826 3 Clamp–Hose
17 1–603827 5 Clamp–Hose
18 1–603987 1 Fitting–Elbow
19 1–603988 1 Fitting–Elbow
20 1–603989 2 Fitting
20:1 237–78 1 O–Ring
21 1–603990 4 Fitting–Straight
21:1 237–79 1 O–Ring
21:2 1–603992 1 O–Ring
22 1–633775 2 Hose–Lower
24 1–632281 1 Hose ASM
25 1–632282 1 Hose ASM
26 1–632285 1 Hose ASM
27 1–632286 1 Hose ASM
28 1–633568 2 Sheave
29 1–633567 1 Sheave
30 1–633749 1 Belt–Drive, Pump
31 1–633167 1 Sheave–Idler
32 1–633335 2 Hose–Pressure, Low
33 1–634277 1 Bearing Arm ASM
33:1 1–513034 2 Sleeve–Bearing
33:3 302–40 1 Fitting–Grease
34 321–4 2 Screw–HH
35 323–8 1 Screw–HH
36 323–9 1 Screw–HH
37 1–800805 1 Screw–HH
38 323–7 4 Screw–HH
39 1–803022 2 Screw
* Not illustrated
9
3325–859
10
46
40
41
28
31
35
13
47
29
39
36
12
44
45
37
40
7:1
21
33
30
41
28
7
1
10:2
10
10:1
10:2
10
10:1
1 1:1
11:2
Sheet No.: 7
1
47
43
51
21
22
11
20
3
17
6
32
24
17
25
17
7
26
2
19
27
14
16
16
15
16
32
2:2
48
18
5
9
34
51
20:1
20
47
17
33:1
21
8
22
33:1
33:3
46
38
21:1
21:2
11
Hydraulic System Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
40 30–1710 2 Screw
41 1–803050 2 Screw–Set
43 3256–3 1 Washer–Flat
44 3256–4 1 Washer–Flat
45 13–2840 1 Key–Square
46 1–807272 2 Key–Machine
47 3290–357 8 Nut–Flange, Lock
48 32128–33 2 Nut–HF
51 1–603841 2 Pump–Hydraulic
*51 80–6130 1 Kit–Seal, Overhaul
* Not illustrated
10
23
24
3325–859
10
21
2
22
1
5
1
5
5:3
11
9
20
14
17
4
8
20
19
16
13
UNIT FRONT
15
18
15
18
3
1
1
12
1
3
8
6
7
Sheet No.: 8
Tank and Fuel Line Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–303077 6 Clamp–Line, Fuel
2 99–4656–03 1 Panel–Control
3 1–513762 2 Clip–Loom
4 1–303335 1 Tie–Plastic
5 88–3980 2 Gas Cap ASM
5:3 88–4010 1 Gasket–Cap, Gas
6 1–513645 2 Bushing–Valve, Fuel
7 1–543277 2 Elbow–Tank, Fuel
8 1–543456 2 Hose–Fuel
9 1–633023 6 Stud
10 104–5100 1 Tank–Fuel, LH
11 104–5101 1 Tank–Fuel, RH
12 1–633347 1 Valve–Fuel
13 103–0216 1 Hose–Fuel
14 1–633349 6 Spring–Tank, Fuel
15 321–3 2 Screw–HH
16 322–3 2 Screw–HH
17 3296–47 6 Nut–Lock, NI
18 1–805004 2 Wshr,Lck Hlclsprg
1/4hvy
19 1–805005 2 Washer–Lock
20 3256–23 8 Washer–Flat
21 99–4632 1 Decal–Panel, Control
22 99–4940 1 Shield–Panel, Control
23 1–803071 4 Screw
24 1–303435 4 Washer–Spring
11
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