Toro 74230 Parts Catalogue
Form No. 3328–244 REV A
Z257
Z Master with 52in SFS Side Discharge Mower
Model No. 74230—230000001 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 — 2002
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.
3328–244 REV A
Contents
Description Page Description Page
Front Frame Assembly 3. . . . . . . . . . . . . . . . . . . . .
Caster and Wheel Assembly 4. . . . . . . . . . . . . . . .
Main Frame Assembly 5. . . . . . . . . . . . . . . . . . . . .
Brake and Wheel Hub Assembly 6. . . . . . . . . . . .
Steering Control Assembly 7. . . . . . . . . . . . . . . . .
Hydraulic System Assembly 8. . . . . . . . . . . . . . . .
Seat Assembly 10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deck Connection Assembly 11. . . . . . . . . . . . . . . . .
Drive Idler Assembly 12. . . . . . . . . . . . . . . . . . . . . . .
Stand Assembly 13. . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine and Clutch Assembly 14. . . . . . . . . . . . . . . .
Guard Assembly 15. . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel System Assembly 16. . . . . . . . . . . . . . . . . . . . .
Electrical System Assembly 17. . . . . . . . . . . . . . . . .
Deck, Deflector and Roller Assembly 18. . . . . . . . .
Spindle and Pulley Assembly 19. . . . . . . . . . . . . . .
Belt and Idler Arm Assembly 20. . . . . . . . . . . . . . . .
Electrical Schematic 21. . . . . . . . . . . . . . . . . . . . . . .
Accessories
Description Model / Part No. Description Model / Part No.
Suspension Seat Kit 99–8522. . . . . . . . . . . . . . . . . . . .
Atomic Blade Assembly 104–1303. . . . . . . . . . . . . . . .
Striping Kit 30163. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recycler Kit 100–9600. . . . . . . . . . . . . . . . . . . . . . . . . .
Hitch Kit 99–8925. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark Arrestor Kit 105–1672. . . . . . . . . . . . . . . . . . . . .
Filter Minder 99–4664. . . . . . . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . . . . . . . .
2
22
15
1
37
18
1:6
24
21
10
19
22
24
17
16
24
20
36
10
25
1:7
1:4
11
11
3:2
65
3:5
24
1:2
27
12
14
3
7
8
1:7
9
10
25
24
23
26
3328–244 REV A
3:4
3:3
1:5
10
1:3
Front Frame Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 104–5131 1 Frame ASM
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
1:7 103–1918 1 Bushing
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
5 103–2083–03 1 Lever–Lift
6 1–633295 1 Grip–Lever, Lift
7 103–2064–03 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
14 323–29 2 Screw–HH
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
35:3
35:3
35:4
35:2
35:1
35:2
35:3
35:5
35:6
35:7
35:3
35:4
20 1–633097 1 Pin–Hitch W/Lanyard
21 1–806005 1 Pin–Hair
22 323–9 2 Screw–HH
23 98–5975 12 Washer–Belleville
24 3290–357 17 Nut–HHF
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
35
Sheet No.: 2
Not serviced separately
3
3328–244 REV A
11:2
11:1
1
2
3
4
5
5
4
7
8
22
11:3
11:5:1
11:5:2
11:5
11
11:5:3
11:4
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–Cone, Taper
5 254–72 4 Bearing–Cup, Tapered
7 1–543511 2 Seal–Grease
8 1–642111–01 2 Caster
11 1–644251 2 Caster Wheel ASM
11:1 1–633580 2 Seal–Bearing
11:2 1–633581 2 Spacer–Bearing
11:3 1–633585 2 Bearing–Cone, Taper
11:4 1–633959 1 Spacer–Caster, Front
11:5 1 Wheel And Tire ASM
11:5:1 1–523009 1 Tire
11:5:2 1–633987 1 Wheel
11:5:3 1–633584 2 Bearing–Cup
13 1–632802–01 1 Weight ASM
14 32144–70 4 Screw–HH
21 325–24 2 Screw–HH
22 3296–45 2 Nut–Lock, NI
13
14
21
Sheet No.: 3
Not serviced separately
4
26
13:2
13
22
42
13:4
25
27
24
11:2
9
19
28
11
3328–244 REV A
15
10
13:3
4
13:5
44
5
29
Main Frame Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–633964–03 1 Stop–Brake, Park
4 322–3 6 Screw–HH
5 323–6 2 Screw–HH
9 1–633696 1 Cable–Throttle
10 1–603336 1 Control–Choke
11 105–3648 1 Main Frame ASM
11:2 103–2433 1 Decal–Console, Top
12 1–653010 2 Wheel And 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
13:5 104–8172 1 Decal–Mobil 1
15 242–50 8 Nut–Lug
19 3296–2 2 Nut–Lock
21 3296–39 2 Nut–Lock, NI
22 1–807513 2 Bolt–CARR
24 1–513762 1 Clip–Loom
25 1–303335 1 Tie–Plastic
26 1–513592 1 Knob–Ball
27 321–4 1 Screw–HH
28 32128–33 1 Nut–HF
29 1–513658 2 Bumper–Catcher,
Grass
21
1
12:1
12:2
Sheet No.: 4
12
42 106–6561 1 Decal–Z257
44 3256–23 6 Washer–Flat
5
3328–244 REV A
24
12
5
13
19
23
19
13
23
11
3
27
22
1
1
4:2
25
18
13
4
19
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 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
15:1 103–0589 1 Hub–Wheel
15:2 1–633926 4 Stud–Wheel
18 323–4 4 Screw–HH
19 103–2399 4 Pin–Spring, 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–HHF
25 3253–7 8 Washer–Lock
26 3256–4 4 Washer–Flat
23
10
20
15
15:1
15:2
3
21
6
30
23
26
26
2
14
9
31
29
7
28
Sheet No.: 5
27 3272–10 1 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
6
22
2
18
11
37
25
14
23
10:1
34
11:1
37:1
10:6
10:3
10:2
10:7
10:4
8
10:5
10:6
10
3328–244 REV A
8
5
7
6
9:3
9:2
20
9:1
30
12
34
3
21
34
Steering Control Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 1–303105 2 Yoke–Adjustable
2 98–5975 4 Washer–Belleville
3 103–2913 2 Damper–Control,
Motion
5 1–603735 2 Bushing–Flanged
6 1–603737 2 Bolt–Return, Neutral
7 1–603807 2 Spring–Return,
Neutral
8 1–403180 4 Screw–HH
9 1–634275 1 LH Pump Linkage
ASM
9:1 1–543017 1 Balljoint–RH
9:2 3219–2 3 Nut–Hex
9:3 1–633153 1 Link–Rod, Tracking
9:4 1–804524 1 Nut
9:5 1–633152 1 Balljoint–Thread, LH
10 103–3061 1 Tracking Rod ASM
10:1 1–543017 1 Balljoint–RH
10:2 3219–2 1 Nut–Hex
10:3 103–3060 1 Knob–Tracking
10:4 1–804524 2 Nut
10:5 1–323245 2 Spring–Compression
10:6 1–633152 1 Balljoint–Thread, LH
10:7 103–3064 1 Link–Rod, Tracking
11 103–0632 1 RH Lever ASM
11:1 1–633257 1 Grip–Control, Motion
16
35
34
9
32
29
26
28
3
34
20
9:5
9:4
30
13
1
26
33
34
12 1–632208 2 Arm–Control, Pump
13 1–642319 1 Control–Motion, LH
14 1–642320 1 Control–Motion, RH
16 1–633102 4 Bearing–Flange, Side
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–Set
25 3296–39 6 Nut–Lock, NI
26 3219–2 4 Nut–Hex
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–HHF
37 103–0631 1 LH Lever ASM
37:1 1–633257 1 Grip–Control, Motion
24
Sheet No.: 6
7
3328–244 REV A
24
11
32
17
10:1
17
14
10
21
49
14:1
10:2
51
21
50
20
3
10
26:1
12
23
37
41
28
11
30
44
10
33
4
11:2
10:2
11:1
10:1
10
Sheet No.: 7
45
39
47
1
41
40
2
19:1
17
46
2:2
7
16
19
17
25
22
26
6
21:1
47
21
35
28
43
2:1:1
2:1:2
16
27
21:2
31
47
18:1
18
34
20
48
42
47
13
39
33:1
40
46
33:3
20:1
33:1
38
7:1
16
21:2
29
36
51
7
21:1
21
Hydraulic System Assembly
DescriptionPart No. Qty.Ref. No. DescriptionPart No. Qty.Ref. No.
1 103–1764 1 Upper RH Hose ASM
2 103–1947 1 HYD Reservoir ASM
2:1 1 Reservoir–HYD
2:1:1 103–1948 1 Cap–Reservoir, HYD
2:1:2 103–1949 1 Gasket–Cap
2:2 1–523552 1 Decal–Tank, HYD
3 104–7836 1 Head–Filter
4 103–1682 1 Upper LH Hose ASM
6 1–633752 1 Filter–HYD, Winter
6 1–633750 1 Filter–HYD
7 103–1799 2 Elbow–90
7:1 237–42 1 O–Ring
10 1–603991 4 Fitting–Straight
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 Seal Kit
*11:99 1–000139 1 Bearing Kit
*11:99 103–2748 1 Drive Link Kit
12 1–603384 1 Bushing–Pivot, Idler
13 1–633151 1 Spring–Extension
14 103–1828 1 Adapter–Run, Tee
14:1 237–42 1 O–Ring
16 103–1716 3 Clamp–Hose
17 103–1988 4 Clamp–Hose
18 103–1801 1 Adapter–Straight
18:1 237–42 1 O–Ring
19 103–1912 1 Adapter–Straight
19:1 237–42 1 O–Ring
20 103–1802 2 Elbow–HYD, 90
20:1 237–42 1 O–Ring
21 1–603990 4 Fitting–Straight
21:1 237–79 1 O–Ring
21:2 1–603992 1 O–Ring
22 103–1765 1 Lower RH Hose ASM
23 103–1683 1 Lower LH Hose ASM
24 103–1826 1 HYD Hose ASM
25 103–1808 1 Hose–HYD
26 103–1807 1 Elbow–45
26:1 237–42 1 O–Ring
27 103–1806 1 HYD 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
32 103–1827 1 HYD Hose ASM
33 1–634277 1 Bearing Arm ASM
33:1 1–513034 2 Sleeve–Bearing
33:3 302–40 1 Fitting–Grease
34 321–6 2 Screw–HH
Not serviced separately
* Not illustrated
8
Loading...