IMPORTANT: This engine is not equipped with a spark arrester muffler. It is a violation of California Public Resource Code
Section 4442 to use or operate this engine on any forest-covered, brush-covered, or grass-covered unimproved land. Other
states or federal areas may have similar laws.
This spark ignition system complies with Canadian ICES-002.
The Engine Owner’s Manual provides information regarding the U.S. Environmental Protection Agency (EPA) and the
California Emission Control Regulation of emission systems, maintenance and warranty.
Keep Engine Owner’s Manual with your unit. S hould the Engine Owner’s Manual become damaged or illegible, replac e immediately. Replacements may be ordered per the information found in the Product Information sec tion of the
When ordering parts, you must use the part number as shown for each part, not the index number. Always give the tractor model
and serial number, and engine model and serial number to your parts and service representative.
Note: Items sold in bulk such as seals and hoses are sold by the foot.
Using this manual
http://www.parker.com
Illustrations used were current at the time of printing, but subsequent production changes may cause your machine to
vary slightly in detail. Excel Industries, Inc. reserves the right to redesign and change the machine as deemed necessary, without notification. If a change has been made to your machine which is not reflected in this parts manual, see
your Hustler dealer for current information and parts.
766238 8/061-1
Page 6
Hardware Description Codes & Abbreviations
The following codes are used throughout this parts manual. Refer to this list when ordering parts.
The following chart lists the standard torque values for the threaded fasteners found in this manual. Torque all cap
screws, nuts and set screws to these values unless a different torque is noted.
3. Pull plastic strap only tight enough so cable is parallel to backing plate. Cut off
excess strap.
4. Use plastic strap to hold right brake cable to tractor frame after cable is
attached to brake activation assembly. Pull strap tight, cut off excess strap.
5. Apply 3 drops of 609 Loctite to taper on wheel motor axle as shown.
Assemble within 15 minutes. Do not put drops on threads or backside of nut.
6. Install brake shoe with longest pad toward front of tractor (both sides).
7. Install strut with longest notch toward front of tractor (both sides).
8. Used on tractors with serial number prior to 04014000.
766238 8/066-3
Page 46
Tail Wheel Installation - 4500 & 4600
3
5
6
4
1
2
11
45°
See Detail A
ROD
HOOK
10
12
13
9
7
14
15
4
8
7
2
20
19
14
16
17
3
19
18
9
10
Turn item 10, grease zerk, as shown so rod hook
will not interfere with use of grease gun.
Detail A
1
21
6-4766238 8/06
Page 47
Tail Wheel Installation - 4500 & 4600
INDEX
NO.
10528600528602CS .375-16 X 1.250 HX G5 ZN
20170120170122LW .375 MEDIUM SPRING ZN
30493460493462FW .375 X .870 X .078 ZN
43858313858311PIVOT PIN
50362440362441CS .375-16 X 1.00 HX G5 ZN
67061687061681NT .375-16 HX JAM G5 ZN
7082180N/AA/RMB 1.00 X 1.50 X .049 PN
8018747N/A2BRONZE BUSHING 1.250 X 1.00 X 1.250
9508788N/A1TAIL WHEEL AXLE
10015511N/A1GREASE ZERK 45°
11016527N/A2CS .50-13 X 1.00 HX G5 ZN
12017046N/A2LW .50 MEDIUM SPRING ZN
13344267N/A2FW .510 X 2.150 X .187 SPL ZN
14077123N/A4BEARING
15387035N/A2SPACER
16082966N/A2BUSHING
17521989N/A2FORK
180414750414752CS .75-10 X 9.50 HX ZN
190252960252964FW .760 X 1.620 X .080 ZN
200611010611012NT .75-10 HX NY ZN
217477827477822WHEEL & TIRE ASSEMBLY
3. Wheel must rotate freely after wheel is assembled into fork and item 20, nut,
is tightened.
4. Ream tube to 1.250 (+.000/-.005) after welding. Then install item 8, bushings,
and ream bushing to 1.003 (+.005/-.005). Do not paint inside bushings.
14677534677531STEERING TUBE
27296167296161TEE BAR HANDLE ASSEMBLY (INCLUDES ITEM 3)
3792317N/A2GRIP RV-1.00 IDX5.00 LG
40051240051241ROLL PIN .250 X 1.375 ZN
50791860791862CS .312-18 X 1.250 HX G5 ZN
60170040170042LW .312 MEDIUM SPRING ZN
70342720342728NT .312-18 HX G5 ZN
87285847285842PIVOT TUBE BUSHING
94677794677791PIVOT TUBE
107043387043382BEARING DISC
114678454678451PIVOT SPACER
120000590000592NT .437-14 NC ZN
137296247296242CS .437-14 X 2.50 HX G5 ZN
147285927285922SHOCK ABSORBER
154677464677462SHOCK ABSORBER BUSHING
160733610733611CS .375-16 X 6.00 HX ZN
1703518803518812CW .375 X .750 X .040 CUP
180545020545022NT .375-16 HX G5 ZN
194677614677611STEERING ARM
200716130716132NT .375-24 HX G5 ZN
210170120170124LW .375 MEDIUM SPRING ZN
224749404749401R/H STEERING LINK ASSY (INCLUDES 24, 25, 26, 27 & 28)
234749324749321L/H STEERING LINK ASSY (INCLUDES 24, 25, 26, 27 & 29)
24741215N/A2ROD END
25706176N/A2NT .375-24 HX JAM ZN
26741207N/A2TURNBUCKLE .375-24
27741223N/A2NT .375-24 LH HX JAM ZN
28N/AN/A1R/H STEERING CONTROL LINKAGE
29N/AN/A1L/H STEERING CONTROL LINKAGE
300085810085812CS .250-20 X 1.50 HX G5 ZN
310254030254034FW .281 X .625 X .062 ZN
323138743138742STEERING ADJUSTMENT BRACKET
330765470765474FW .344 X .688 X .065 SAE ZN
347663037663031THREADED ROD 5/16-18 X 8.00
357663297663292COMPRESSION SPRING
363166123166121STEERING CONTROL BRACKET
374473674473671STEERING LINK BRACKET
380170380170384LW .250 MEDIUM SPRING ZN
390249270249274NT .25-20 HX G5 ZN
407049167049162CS .25-20 X 1.250 HX G5 ZN
417365047365044FW .281 X .625 X .098 ZN
420172440172442CP .125D X 1.00 LG HML ZN
434267754267752LEVER BUSHING & WASHER ASSEMBLY
445241815241812PUMP LEVER
450806550806552CS .375-16 X 1.50 HX G5 ZN
462996852996851LINKAGE STRAP
472943552943551LINKAGE STRAP
SERVICE
PAR T N O .
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Torque to 28-30 Ft. Lbs.
2. Glue grips 792317 to T-bar with 082511, 3M adhesive #130.
3. Recess item 4, roll pin, .06” from surface of steering tube.
4. See Chapter 15 for final adjustment.
5. Tighten item 17, nut, until items 16, cup washers, are just snug, then
tighten nut 1/2 to 3/4 of a turn, then add second nut.
766238 8/067-3
Page 54
Neutral Lock Assembly
3
4
1
9
8
5
2
8
9
8
2
7
6
10
11
3
4
5
8
1
7
12
7-4766238 8/06
Page 55
Neutral Lock Assembly
INDEX
NO.
14678114678111FRONT NEUTRAL LOCK
24677874677871ADJUSTMENT PLATE
30559470559473CS .25-20 X .50 HX G5 ZN
40170380170383LW .250 MEDIUM SPRING ZN
50254030254033FW .281 X .625 X .062 ZN
60837660837661GRIP
70560770560774CS .25-20 X 1.00 HX G5 ZN
80170790170798FW .250 X .560 X .040 SAE ZN
97157487157484NT .25-20 FLEX-LOC
104837354837351REAR NEUTRAL LOCK
114760514760511ADJUSTMENT PLATE
120745590745591GRIP
SERVICE
PAR T N O .
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Do not over tighten. Item 10, rear neutral lock, to rotate freely.
2. Do not over tighten. Item 1, front neutral lock, to rotate and hold in place.
766238 8/067-5
Page 56
Clutch Assembly
1
11
12
10
3
8
4
17
16
16
15
27
5
9
14
1
13
2
2
7
6
5
26
20
4
21
24
23
22
18
31
25
29
30
32
24
4
13
33
28
34
36
35
3
19
7-6766238 8/06
Page 57
Clutch Assembly
INDEX
NO.
100745590745591HAND GRIP
110164280164281CS .375-16 X 2.50 HX G5 ZN
120170120170121LW .375 MEDIUM SPRING ZN
130467630467632NT .375-16 FLEX-LOK ZN
144475574475571CLUTCH LEVER LINKAGE
150254030254031FW .281 X .625 X .062 ZN
160172360172362CP .093D X .750 LG HML ZN
170738660738661FW .281 X .50 X .060 ZN
183859223859221PIVOT BRACKET
190808380808381CLUTCH SPRING
207549377549371FW .406 X 1.250 X .080 ZN
210632970632971SB .370 X .50 SH .312-18 TD
224606344606341CLUTCH PIVOT ARM
237047187047181FW .406 X .688 X .060 ZN
247122817122812NT .312-18 HX FLK
250605410605411SB .50 X .625 SH .375-16 ZN
260588750588751MB .510 X .870 X .050 ZN
277061687061681NT .375-16 HX JAM G5 ZN
283863913863911IDLER ARM
297226787226781SB .375 X .620 SH .312-18 TH ZN
307047267047261FW .406 X 1.00 X .105 ZN
310164440164441CS .375-16 X 3.00 HX G5 ZN
320706720706721NT .375-16 HX FL CLK ZN
337365207365201CS .375-16 X 5.250 HX G5 ZN
343880743880741IDLER SPACER
355343965343961IDLER PULLEY
363880823880821IDLER SPACER
SERVICE
PAR T N O .
13870273870271CLUTCH LINKAGE
23848263848261CLUTCH MOUNT
30726110726111FW .406 X .812 X .065 BO
40172510172512CP .156D X 1.00 LG HML ZN
50640140640142CS .312-18 X .875 HX G5 ZN
60170040170042LW .312 MEDIUM SPRING ZN
70493460493462FW .375 X .870 X .078 ZN
80154950154951GREASE FITTING
93848343848341CLUTCH LEVER
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Tighten nut enough to allow free movement of item 9, clutch lever.
2. Lubricate with grease before assembly.
3. Position item 18, pivot bracket, with large hole on top.
4. Make sure item 28, idler arm, moves freely by tightening item 13, nut,
until it clamps idler arm so that it cannot move. Then back nut off
(loosen) until idler arm moves freely.
5. Pump clutch lever must break over center and hold.
1. Tighten nut then back off approximately 1/2 turn so linkage rotates
.
freely
2. Tighten nut enough to prevent throttle lever from moving when at 1/2
speed.
3. Used on tractors with serial number prior to 02034020.
766238 8/068-3
Page 62
Electronic Throttle Assembly - 4500
2
2
1
2
1
4
5
1
3
8
1
6
FOOTREST
7
6
8-4766238 8/06
Page 63
Electronic Throttle Assembly - 4500
2
INDEX
NO.
SERVICE
PAR T N O .
10297100297107CS .312-18 X .750 HXFLK ZNYC
278705178705114500 THROTTLE CONTROL SWITCH
337939637939614500 CONTROL CAP
4026237N/A2RELAY
50598320598322NT #10-24 HX NL ZN
6N/A8084857NUTSERT, 5/16-18 THREAD
73687873687871CONTROL SWITCH MOUNT BRACKET
878693978693914500 ELECTRONIC GOV THROTTLE DECAL
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Part of Item 2 (4500 Throttle Control Switch).
2. Used on tractors with serial number 02034020 and higher.
766238 8/068-5
Page 64
Throttle Control Cable - 4600
1
3
2
1
6
5
4
10
8
9
7
5
1
8-6766238 8/06
Page 65
Throttle Control Cable - 4600
INDEX
NO.
104974384974381THROTTLE LINK
SERVICE
PAR T N O .
17149987149983MS 10-24 X .625 HX ZN
20356910356912FW .210 X .50 X .046 ZN
30563330563331KNOB
47424377424371THROTTLE CONTROL ASSEMBLY
50561760561763LW #10 MEDIUM SPRING ZN
60356260356262NT 10-24 HX ZN
70436610436611CLAMP
84974464974461THROTTLE MOUNT PLATE
90118410118411CONDUIT CLIP
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Use Loctite® 242 sealant (703926) to install item 3, knob.
766238 8/068-7
Page 66
Choke Control Cable Assembly - 4500
See Detail A
1
2
7
4
8
3
8
10
11
5
6
1
9
REMOVE EXCESS ADHESIVE
FROM LEVER AFTER KNOB
IS INSTALLED
.750 INSTALLED
1
APPLY ADHESIVE
TO BOTH SIDES
OF THIS AREA
2
9
.620 APPROX.
Detail A
8-8766238 8/06
Page 67
Choke Assembly - 4500
INDEX
NO.
100560770560771CS .25-20 X 1.00 HX G5 ZN
110384220384221CHOKE CABLE ASSEMBLY
SERVICE
PAR T N O .
10835350835351KNOB
27149987149982MS 10-24 X .625 HX ZN
30356910356912FW .210 X .50 X .046 ZN
42917652917651LEVER MOUNT BRACKET
50561760561762LW #10 MEDIUM SPRING ZN
60356260356262NT 10-24 HX ZN
77157487157481NT .25-20 FLX LK
80580810580813FW .250 X .750 X .10 NY
92915422915421CHOKE LEVER
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Choke adjustment-position lever in middle of slot. Adjust cable so choke
plate is in maximum horizontal position that carburetor allows. Choke
plate must be vertical when lever is in off position.
2. Installation Instructions:
a. Use 3M™ Scotch-Grip™ 1300 adhesive or equivalent to install item
1, knob, onto item 9, choke lever.
b. Surface to be glued must be clean, dry & dust free. Wipe with solvent
if necessary.
c. Temperature of both surfaces should be 65° or more.
d. Allow to dry until adhesive is no longer tacky to the touch (minimum 5
minutes).
e. Use assembly tool 083535 to install knob on lever.
766238 8/068-9
Page 68
Carburetor Assembly - Mechanical Throttle
5
4
3
2
3
1
2
9
6
4
5
3
4
10
6
7
8
2
18
See Detail A
19
15
17
16
INTAKE
MANIFOLD
14
11
1
12
4
13
LINE FROM FUEL PUMP
Figure 1
INCORRECT
Figure 2
CORRECT
4
Detail A
8-10766238 8/06
Page 69
Carburetor Assembly - Mechanical Throttle
5
INDEX
NO.
100356260356261NT 10-24 HX ZN
110442550442551NT 10-32 HX ZN
12N/A1ELBOW 90°
13708677N/A1FILTER ASSEMBLY
14708644N/A2NT M8 X 1.250 HX ZN
15N/A1GASKET (CARBURETOR TO ADAPTER)
16N/A1GASKET (ADAPTER TO MANIFOLD)
17714659N/A1ADAPTER
18066142N/A2CS M6 X 1.00 X 2.00 SKHD
19708610N/A2STUD, M8 X 1.250 X 29.50
SERVICE
PAR T N O .
1N/A1CARBURETOR (FACET)
27102857102852CHOKE ROD SEAL
30356910356912FW .210 X .50 X .046 ZN
40561760561764LW #10 MEDIUM SPRING ZN
57155817155811NT 8-36 HX ZN
67149987149982MS 10-24 X .625 HX ZN
70118410118411CONDUIT CLIP
80384220384221CHOKE CABLE
94348864348861CHOKE WIRE BRACKET
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Torque 16-20 ft. lbs.
2. Apply Loctite® 242 to threads and torque to 12-15 ft. lbs.
3. Remove choke lever from right end of choke pivot shaft & reassemble
on left end of choke pivot shaft. With the choke butterfly in the horizontal
most position (fully choked) the choke lever should be positioned 1.00”
from the choke cable mount screw, as shown. Item 5 nut, item 4 lock
washer, item 3 flat washer & item 2 seal will have to be assembled on
right end of choke pivot shaft.
4. Item 17, adapter, can be installed two different ways, see Detail A.
Correct installation is shown in figure 2.
5. Used on tractors with serial numbers prior to 02034020.
766238 8/068-11
Page 70
Carburetor Connections- Electronic Throttle
1
PART OF
CARBURETOR
2
1
3
7
4
5
5
ENGINE
HARNESS
786749
REAR WIRING
HARNESS
751743
6
ENGINE
HARNESS
786749
8-12766238 8/06
Page 71
Carburetor Connections - Electric Throttle
INDEX
NO.
SERVICE
PAR T N O .
10384220384221CHOKE WIRE ASSEMBLY
27149987149981MS #10-24 X .625 HX ZN
30118410118411CONDUIT CLIP
40356910356911FW .210 X .500 X .046 ZNYC
50561760561762LW #10 MED SPRING ZNYC
60356260356261NT #10-24 HX ZN
70442550442551NT #10-32 HX ZN
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Used on tractors with serial numbers 02034020 and higher.
2. Torque to 70 ft. lbs. Check with torque wrench.
3. Apply anti seize compound 006395 to pulley ID & pump shaft.
4. Torque to 40 ft. lbs.
5. Do not tighten engine pulley until it is aligned with pump pulley.
6. Pump pulley must align with pulley on engine within
7. Packaged in bolt sack 391235, 1 each.
8. To adjust belt tension compress clutch spring 1 inch
9. Before assembly of item 24, stub shaft, to engine fly wheel, clean both
surfaces with solvent to remove any wax or dirt.
766238 8/069-3
+
.06 inch.
+
1/8.
Page 76
Front Engine Assembly - 4500
10
9
7
6
7
7
7
12
21
11
1
7
1
3
8
22
4
19
242527
29
3
28
5
14
2
2
151617
6
23
20
4
5
18
3
26
13
9-4766238 8/06
Page 77
Front Engine Assembly - 4500
INDEX
NO.
10563250563251CS .25-20 X 1.00 ZN
22994792994791HANGER
30170380170383LW .250 MEDIUM SPRING ZN
40249270249271NT .25-20 HX G5 ZN
50897550897551HOSE .625 O.D X .375 I.D. X 1.65”
60179210179211NT .312-18 HX ZN
70170040170045LW .312 MEDIUM SPRING ZN
80163370163371CS .312-18 X 2.50 HX ZN
90306920306921DRIVE SHAFT, P.T.O.
10015495N/A1GREASE ZERK
110156100156101CAP PLUG
120362360362364CS .312-18 X 1.00 HX G5 ZN
133629543629541CLUTCH SHROUD
140222850222851ELECTRIC CLUTCH ASSEMBLY
15715623N/A1CS .312-24 X 2.750 HX NYLK
16715649N/A1FW .330 X 1.50 X .240
173863593863591CLUTCH ANCHOR
180559470559472CS .25-20 X .50 HX G5
190733040733041Q.D. HUB
200349420349421Q.D. SHEAVE (6.35” O.D.)
210536780536786CS M8 X 1.250 X 16 HX G8 ZN
220157190157191WOODRUFF KEY
230817520817521WOODRUFF KEY
240554420554421STUB SHAFT
25717595N/A1WOODRUFF KEY
265242725242721PUMP DRIVE PULLEY (8” O.D.)
270337790337791V-BELT (PUMP DRIVE)
280170610170611LW .750 MEDIUM SPRING
290368550368551NT .75-16 HX ZN
SERVICE
PAR T N O .
073759N/A1U-JOINT REPAIR KIT
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Torque to 14-21 ft. lbs.
2. Torque to 25-27 ft. lbs.
3. Torque to 70 ft. lbs. Check with torque wrench.
4. Pump pulley must align with pulley on engine within ± .06 inch.
5. Apply anti seize compound 006395 to pulley ID & pump shaft.
6. Do not tighten engine pulley until it is aligned with pump pulley.
7. Packaged in bolt sack 391235, 1 each.
766238 8/069-5
Page 78
Rear Engine Assembly - 4600
27
31
30
29
1
28
Speed Control Lever
26
5
6
11
10
13
21
12
on Injector Pump
24
2
3
1
79
15
15
14
8
5
4
20
22
23
25
14
6
18
17
19
9-6766238 8/06
16
Page 79
Rear Engine Assembly - 4600
INDEX
NO.
17563047563041KUBOTA ENGINE, V-1505
2758888N/A1FAN BELT
37574197574191WATER TEMPERATURE SWITCH
44974124974121ENGINE MOUNT LH
503523803523817LW .437 MEDIUM SPRING ZN
603863803863817CS M10-1.25 X 25 HX G8 BO
70327060327061FUEL FILTER ASSEMBLY
8042341N/A1FUEL FILTER ELEMENT
90162870162872CS .312-18X1.000 HXFLK ZN
104974464974461THROTTLE MOUNT PLATE
117201777201771CS M8-1.25 X 20 HX FL ZN
127129277129272FW .344 X 1.00 X .120 HRD ZN
137202197202191CS M8-1.25 X 30 LG HXFLG ZN
140170040170042LW .312 MEDIUM SPRING ZN
150453360453361NT M8-1.25 HX G8.8 ZN
167149987149981MS 10-24 X .625 HX ZN
170561760561761LW #10 MEDIUM SPRING ZN
180118410118411CONDUIT CLIP
197424377424371THROTTLE ASSEMBLY
204974384974381THROTTLE LINK
210559390559391CS .25-20 X .750 HX G5 ZN
220170380170381LW .250 MEDIUM SPRING ZN
230249270249271NT .25-20 HX G5 ZN
240342800342801CS .312-18 X .750 HX G5 ZN
250179210179211NT .312-18 HX ZN
263869463869461HOSE MOUNT
270742520742524CS .50-13 X 1.50 HX G5 ZN
284973964973962ENGINE MOUNT RH
290171370171374FW .560 X 1.370 X .109 SAE ZN
300170460170464LW .50 MEDIUM SPRING ZN
310679180679184NT .50-13 HX G8 ZN
SERVICE
PAR T N O .
4974204974201ENGINE MOUNT LH
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Use Loctite® pipe sealant 592 (005488) on all pipe thread fittings.
766238 8/069-7
Page 80
Rear Engine Assembly (Mechanical Governor) - 4500
2
1
4
12
19
14
2
10
6
6
5
34 35
33
3
1
29
31
36
32
37
4
46
41
37
7
40
42
43
44
See Detail A
39
7
8
38
7
8
12
9
Hardware Supplied
by Vendor
1
1
30
23
22
9
21
10
8
11
18
20
15
13
16
28
8
25
47
5
3
45
Use Existing
Hardware
27
8
24
16
Hardware Supplied
17
by Vendor
26
7
4.45
(REF)
.70
1.125
.65
VIEW OF CARBURETOR AND
GOVERNOR LINKAGE TO SHOW
SPACING ON LINKAGE
MECHANICAL GOVERNOR ONLY
Detail A
9-8766238 8/06
Page 81
Rear Engine Assembly (Mechanical Governor) - 4500
12
INDEX
SERVICEPA
NO.
1753574N/A1ALTERNATOR ASSEMBLY
2753582N/A1ALTERNATOR PULLEY
3070656N/A1CS .375-16 X 1.00 HX G8 ZN
4753616N/A1ALTERNATOR ADJUSTMENT ARM
5017004N/A1LW .312 MEDIUM SPRING ZN
6028035N/A1CS M8-1.25 X 20 HX G8 ZN
7013730N/A9CS M10-1.50 X 40 HX G8 ZN
8035238N/A11LW .437 MEDIUM SPRING ZN
9527051N/A1CLAMP BRACKET
10753608N/A1ALTERNATOR MOUNT BRACKET
11387886N/A1REAR ENGINE MOUNT, R.S.
127163087163081ENGINE SUB-ASSEMBLY
13387845N/A1FRONT ENGINE MOUNT R.S.
140679180679184NT .50-13 HX G8 ZN
150170460170464LW .50 MEDIUM SPRING ZN
160171370171378FW .56 X 1.370 X .109 SAE ZN
170742520742524CS .50-13 X 1.50 HX G5 ZN
18036756N/A1UPPER REAR ENGINE PLATE
19006171N/A1STARTER MOTOR END SHIELD
20081125N/A1STARTER MOTOR SPACER
21085571N/A1STARTER MOTOR SEAL
22081117N/A1STARTER ASSEMBLY
23085837N/A2CS .312-18 X 1.00 SKT HD
24038836N/A2CS M10-1.5 X 25 HX G8 BO
25386946N/A1HOSE MOUNT
26387977N/A1FRONT ENGINE MOUNT, L.S.
27037168N/A2ENGINE DOWEL PIN
28045278N/A4NT M10-1.50 HX G8 ZN
29084681N/A1CS M8-1.25 X 30 HX G8 ZN
30N/A2LIFTING TAB
31N/A1WATER PUMP PULLEY
32N/A3CS M6-1 X 16 HX G5
33066001N/A1FAN BLADE ASSEMBLY
34065722N/A1FAN SUPPORT STRAP
35066134N/A3CS M8-1.25 X 20 HX FLG HD
36704916N/A1CS .25-20 X 1.250 HX G5 ZN
37076547N/A2FW .310 X .750 X .060 SAE ZN
38448852N/A1REAR ENGINE MOUNT, L.S.
39038273N/A1MECHANICAL GOVERNOR
40017038N/A1LW .250 MEDIUM SPRING ZN
41024927N/A1NT .25-20 HX G5 ZN
42049346N/A2FW .375 X .870 X .078 ZN
43017012N/A2LW .375 MEDIUM SPRING ZN
44052860N/A2CS .375-16 X 1.250 HX G5 ZN
45047100N/A1CRANKSHAFT PULLEY
46715045N/A1V-BELT (ALTERNATOR DRIVE)
47715862N/A1V-BELT (GOVERNOR DRIVE)
RT NO.
MFG. PART
NO.
QTY.DESCRIPTION
766238 8/069-9
Page 82
Rear Engine Assembly (Mechanical Governor) - 4500
NOTES:
1. Torque to 6-9 ft. lbs.
2. Torque to 14-21 ft. lbs.
3. Torque to 74-88 ft. lbs.
4. Tension belt to 79-124 lbs.
5. Tension belt to 75 lbs.
6. Assemble item 34, bowed fan retaining strap, with one item 35,
capscrew, to center hole in item 31, water pump pulley. Position bowed
strap ends against fan hub face & over unused holes in fan hub.
7. Spark plug wires (not shown) to be routed to clear governor & throttle
linkage.
8. .010-.050 clearance between tip of flywheel tooth to root of starter pinion
tooth.
9. Push item 21, starter motor seal, over starter shaft until firmly against
front surface of starter motor. Use Scotch 3M 1300 adhesive or
equivalent on outside edge of starter motor seal. Seal must contact
starter pilot.
10. When installing item 19, starter motor end shield, make sure it clears
ring gear on flywheel (outboard) upon engagment of starter.
11. Reposition dipstick tube (not shown) to clear engine mount.
12. Used on tractors with serial numbers prior to 02034020.
13. All except items 14 through 17 included in item 12 (713610 Ford
Engine).
9-10766238 8/06
Page 83
This page intentionally left blank.
766238 8/069-11
Page 84
Rear Engine Assembly (Electronic Governor)- 4500
2
1
4
2
34
35
4
19
5
33
10
6
5
3
1
7
8
23
22
7
21
8
6
9
Hardware Supplied
by Vendor
9
30
31
32
11
38
14
15
16
24
11
18
20
13
8
16
Hardware Supplied
17
by Vendor
12
25
7
26
27
41
Use Existing
3
Hardware
37
29
28
8
39
40
7
8
36
9-12766238 8/06
Page 85
Rear Engine Assembly (Electronic Governor) - 4500
10
INDEX
SERVICEPA
NO.
1753574N/A1ALTERNATOR ASSEMBLY
2753582N/A1ALTERNATOR PULLEY
3070656N/A1CS .375-16 X 1.00 HX G8 ZN
4753616N/A1ALTERNATOR ADJUSTMENT ARM
5017004N/A1LW .312 MEDIUM SPRING ZN
6028035N/A1CS M8-1.25 X 20 HX G8 ZN
7013730N/A9CS M10-1.50 X 40 HX G8 ZN
8035238N/A11LW .437 MEDIUM SPRING ZN
9447656N/A1CLAMP BRACKET
10753608N/A1ALTERNATOR MOUNT BRACKET
11387886N/A1REAR ENGINE MOUNT, R.S.
127163087163081ENGINE SUB-ASSEMBLY
133878453878451FRONT ENGINE MOUNT R.S.
140679180679184NT .50-13 HX G8 ZN
150170460170464LW .50 MEDIUM SPRING ZN
160171370171378FW .56 X 1.370 X .109 SAE ZN
170742520742524CS .50-13 X 1.50 HX G5 ZN
18036756N/A1UPPER REAR ENGINE PLATE
19006171N/A1STARTER MOTOR END SHIELD
20081125N/A1STARTER MOTOR SPACER
21085571N/A1STARTER MOTOR SEAL
22081117N/A1STARTER ASSEMBLY
23085837N/A2CS .312-18 X 1.00 SKT HD
24038836N/A2CS M10-1.5 X 25 HX G8 BO
25386946N/A1HOSE MOUNT
26387977N/A1FRONT ENGINE MOUNT, L.S.
27037168N/A2ENGINE DOWEL PIN
28045278N/A4NT M10-1.50 HX G8 ZN
29084681N/A1CS M8-1.25 X 30 HX G8 ZN
30N/A2LIFTING TAB
31N/A1WATER PUMP PULLEY
32N/A3CS M6-1 X 16 HX G5
33066001N/A1FAN BLADE ASSEMBLY
34065722N/A1FAN SUPPORT STRAP
35066134N/A3CS M8-1.25 X 20 HX FLG HD
36448852N/A1REAR ENGINE MOUNT, L.S.
37047100N/A1CRANKSHAFT PULLEY
38715045N/A1V-BELT (ALTERNATOR DRIVE)
39017012N/A1LW .375 MEDIUM SPRING ZN
400560690560691CS .375-16 X .625 HX G5 ZN
410003980003981CLAMP
RT NO.
MFG. PART
NO.
QTY.DESCRIPTION
766238 8/069-13
Page 86
Rear Engine Assembly (Electronic Governor) - 4500
NOTES:
1. Torque to 6-9 ft. lbs.
2. Torque to 14-21 ft. lbs.
3. Torque to 74-88 ft. lbs.
4. Tension belt to 79-124 lbs.
5. Assemble item 34, bowed fan retaining strap, with one item 35,
capscrew, to center hole in item 31, water pump pulley. Position bowed
strap ends against fan hub face & over unused holes in fan hub.
6. .010-.050 clearance between tip of flywheel tooth to root of starter pinion
tooth.
7. Push item 21, starter motor seal, over starter shaft until firmly against
front surface of starter motor. Use Scotch 3M 1300 adhesive or
equivalent on outside edge of starter motor seal. Seal must contact
starter pilot.
8. When installing item 19, starter motor end shield, make sure it clears
ring gear on flywheel (outboard) upon engagment of starter.
9. Reposition dipstick tube (not shown) to clear engine mount.
10. Used on tractors with serial numbers 02034020 and higher.
10036749N/A1WATER OUTLET
11036574N/A1WATER OUTLET GASKET
12045401N/A1THERMOSTAT
13715060N/A1LOWER HOSE 5.0
147215897215891RADIATOR OUTLET CAP
154237494237491TOP SUPPORT
160465080465081TOP SUPPORT SEAL 24.87”
174233434233431SHROUD
1802540302540318FW .281 X .625 X .062 ZN
1901703801703817LW .250 MEDIUM SPRING ZN
200133340133347CS .25-20 X .870 HX G5 ZN
214238224238221SEAL SUPPORT
220614730614732SEAL 28”
2306432906432911CS .25-20 X .625 HX G5 ZN
240080370080374NEOPRENE SPACER
250080450080454NEOPRENE BUSHING
264217844217844MOUNT BUSHING
270230690230694FW .281 X 1.250 X .047 ZN
287049167049164CS .25-20 X 1.250 HX G5 ZN
294225764225762RADIATOR BRACE
300370510370512CLIP
315201714238712DOOR FINAL ASSEMBLY
6
320249270249272NT .25-20 HX G5 ZN
334238144238141RH GUSSET STRAP
347061010287382LATCH CATCH
350176570176574RIVET .125 .062-.125 GRIP
360049110049112SEAL .120 X .50 X 23.50
370049110049112SEAL .120 X .50 X 16.50
385201894237981RH TOP AIR DEFLECTOR
394089974089971AIR DEFLECTOR
405202394238061LH TOP AIR DEFLECTOR
41715052N/A1HOSE ELBOW 90°
42715037N/A1WATER PUMP INLET TUBE
43715391N/A1TUBE CLAMP
44064006N/A1CS .312-18 X .625 HX G5 ZN
45447656N/A1CLAMP BRACKET
460170040170045LW .312 MEDIUM SPRING ZN
470342720342725NT .312-18 HX G5 ZN
48000307N/A4HOSE CLAMP
49010769N/A1WATER BYPASS HOSE
50060889N/A1PLASTIC STRAP
51447250N/A1HEAT SENDER BLOCK
52041202N/A1WATER TEMPERATURE SWITCH
53053736N/A1J-CLIP WIRE CLAMP
547111687111682SEAL 23.75”
550297100297103CS .312-18 X .750 HXFLK ZNYC
Adhesive side to tank, tuck ends
between corner gusset & core.
Detail C
49
2.0 + .12
-
4
5
-
HOSE MODIFICATION - NO SCALE
Detail E
10-4766238 8/06
Page 91
Cooling System - 4500
1. Attach item 5, overflow hose, from bottom of bottle to radiator overflow
port located on filler neck.
2. Use 3M™ Scotch Grip™ 1300 adhesive or equivalent to install seals.
Follow vendor’s instructions carefully for proper application of adhesive.
3. Use existing fasteners.
4. With item 49, water bypass hose, rotated to approximate position
shown, cut hose 1.50” from outside radius (as shown).
5. Measure 2.00” additional, cut again & discard this section of hose. Install
remaining 2 sections of hose.
6. See “Cooling System - 4600” on page 10-6 for breakdown.
7. Used on machines with electronic throttle and governor, serial number
02034020 and higher.
NOTES:
766238 8/0610-5
Page 92
Cooling System - 4600
1
34
4
33
AIR SCOOP
ANGLE SUPPORT
34
2
3
1
5
19
28
20
31
18
18
30
31
19
18
32
33
34
35
36
See
4
27
19
Detail D
9
15
16
21
See Detail B
11
14
9
12
8
10
10
6
38
7
See Detail C
5
37
39
17
See Detail A
28
25
23
18
20
13
3
24
26
19
17
10-6766238 8/06
Page 93
Cooling System - 4600
INDEX
NO.
107130407130404HOSE CLAMP
117574357574351TOP RADIATOR HOSE
127573857573851LOWER RADIATOR HOSE
134969194969191SHROUD
140614730614732SEAL .250 X .50 X 23.50
150176570176574RIVET .125 .062-.120 GRIP
167061010287382LATCH CATCH
174225764225762RADIATOR BRACE
1802540302540310FW .281 X .625 X .062 ZN
1901703801703810LW .250 MEDIUM SPRING ZN
200133340133344CS .25-20 X .870 HX G5 ZN
210370510370512CLIP
225201714238712DOOR FINAL ASSEMBLY
2
23N/A4223032DOOR
24N/A4238892DOOR SEAL
250370690370692SCREW ASSEMBLY
260370440370442RETAINER
274238144238141RH GUSSET STRAP
280249270249274NT .25-20 HX ZN
295241654239541GUSSET STRAP
304974874974871AIR DEFLECTOR
310643290643296CS .25-20 X .625 HX G5 ZN
320362360362364CS .312-18 X 1.00 HX G5 ZN
330170040170048LW .312 MEDIUM SPRING ZN
3407654707654712FW .344 X .688 X .065 SAE ZN
354972634972632RADIATOR BRACKET
367572377572372UPPER RADIATOR PAD
374973394973392LOWER RADIATOR PAD
384973704973701BOTTOM RADIATOR MOUNT
397375367375361SEAL .430 X .750 X 17.00
SERVICE
PART NO.
17610237610231COOLANT BOTTLE
20342800342804CS .312-18 X .750 HX G5 ZN
30414910414911HOSE CLAMP
40342720342724NT .312-18 HX G5 ZN
50342640342641OVERFLOW HOSE 26”
67568667568661RADIATOR ASSEMBLY
70769190769191RADIATOR CAP
87375367375362SEAL .430 X .750 X 20.00 (SEE FOLLOWING PAGE)
90614730614732SEAL .250 X .50 X 16.50 (SEE FOLLOWING PAGE)
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Attach item 5, overflow hose, from bottom of bottle to radiator overflow
port located on filler neck.
2. Includes items 23-26.
3. Use 3M™ Scotch Grip™ 1300 adhesive or equivalent to install seals.
Follow vendor’s instructions carefully for proper application of adhesive.
4. Use hole that best provides angular alignment.
5. Push radiator mount assembly against radiator & radiator against
shroud then tighten .312-18 nuts.
766238 8/0610-7
Page 94
Cooling System - 4600
.50 + .12
-
FAN LOCATION IN SHROUD
Detail A
UP
Clamp must be in this
postion before tightening
(this clamp only)
Detail B
13
6
14
.250 (typ)
9
9
14
SHROUD SEAL LOCATION
Adhesive side to tank, tuck ends
between corner gusset & core.
100168400168404NT .312-18 HX CLK ZN
110342800342804CS .312-18 X .750 HX G5 ZN
120170040170044LW .312 MEDIUM SPRING ZN
130765470765474FW .344 X .688 X .065 ZN
140513000513002SWIVEL ADAPTER, MALE 90°
150359310359311SWIVEL ADAPTER, MALE 90°
160385130385132HOSE ASSEMBLY
174480354480351HOSE BRACKET
180817450817451CS .312-24 X .750 HX G5 ZN
SERVICE
PAR T N O .
10080290080291LH FRAME FILLER
20080110080111RH FRAME FILLER
34217504217501LH COOLER SUPPORT
44217434217431RH COOLER SUPPORT
50297440297441OIL COOLER
60730070730074BEARING DISC
70493460493468FW .375 X .870 X .078 ZN
80856390856394COOLER MOUNT
90312290312294NT .312-18 WG ZN
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Locate items 1 & 2 left and right frame fillers between main frame and
radiator located on the sub-frame to prevent hot air recirculation through
radiator fan.
2. Use Loctite® Pipe Sealant 592 (005488) on the threads of all pipe
fittings.
3. Tighten item 9, wing nut, as tight as possible by hand, then flush item
10, nut, with end of bolt.
766238 8/0611-3
Page 98
Oil Cooler Assembly - 4600
1
1
3
1
2
4
6
7
8
7
3
9
2
17
To L/H Rear Tractor Frame
16
11
12
3
10
13
5
15
2
19
2
20
14
17
2
18
2
11-4766238 8/06
Page 99
Oil Cooler Assembly - 4600
INDEX
NO.
100168400168404NT .312-18 HX CLK ZN
110342800342804CS .312-18 X .750 HX G5 ZN
120170040170044LW .312 MEDIUM SPRING ZN
130765470765474FW .344 X .688 X .065 SAE ZN
147343357343351MALE ELBOW
157573937573931HYDRAULIC OIL TUBE
167574017574011ADAPTER, FEMALE CONNECTOR
170385130385132HOSE ASSEMBLY
180513000513001SWIVEL ADAPTER, MALE 90°
194480354480351HOSE BRACKET
200817450817451CS .312-24 X .750 HX G5 ZN
SERVICE
PAR T N O .
10080290080291LH FRAME FILLER
20080110080111RH FRAME FILLER
34973134973131LH COOLER SUPPORT
44973054973051RH COOLER SUPPORT
50297440297441OIL COOLER
60730070730074BEARING DISC
70493460493468FW .375 X .870 X .078 ZN
80856390856394COOLER MOUNT
90312290312294NT .312-18 WG ZN
MFG. PART
NO.
QTY.DESCRIPTION
NOTES:
1. Locate items 1 & 2 left and right frame fillers between main frame and
radiator located on the sub-frame to prevent hot air recirculation through
radiator fan.
2. Use Loctite® Pipe Sealant 592 (005488) on the threads of all pipe
fittings.
3. Tighten item 9, wing nut, as tight as possible by hand, then flush item
10, nut, with end of bolt.
766238 8/0611-5
Page 100
11-6766238 8/06
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