Illustrated Parts List

MODEL 616

Engine Assembly

This section displays an exploded view of the engine components. It includes the cylinder block, cylinder head, muffler, exhaust pipes, fuel line, oil drain components, and various fasteners used for assembly.

Engine Components
REF.	PART	DESCRIPTION
1	710-0227	Self-tapping Screw, #8-18 x.50
2	710-0599	Self-tapping Screw, 1/4-20 x.50
3	710-0726	Self-tapping Screw, 5/16-18 x.625
4	710-1315	Self-tapping Screw, 3/8-16 x 1.25
5	712-3005	Flange Lock Nut, 3/8-16
6	725-0157	Cable Tie
7	726-0205	Hose Clamp
8	736-0300	Lock Washer,.406 x.875 x.059
9	751-0564A	Muffler Deflector
10	751-0644B	LH Exhaust Pipe (Kohler V-Twin)
11	751-0645A	RH Exhaust Pipe (Kohler V-Twin)
12	751-0805A	Muffler, Twin Inlet (Kohler V-Twin)
13	751-10349	Fuel Line Hose
14	751-3140	Oil Drain Valve
15	751-3141	Oil Drain Hose
16	751-3142	Oil Drain Cap
17	783-0615D	Muffler Bracket

Hood, Dash, and Body Panels

This section illustrates the front end of the tractor, including the hood, grille, headlights, dash panel, control levers (throttle, choke), ignition switch, and side panels, along with their mounting hardware.

Hood, Dash, and Body Panel Components
REF.	PART	DESCRIPTION
1	710-3015	Hex Cap Screw, 1/4-20 x .75
2	710-0599	Self-tapping Screw, 1/4-20 x .5
3	712-04064	Flange Lock Nut, 1/4-20
4	710-0895	Self-tapping Screw, 1/4-15 x .75
5	710-0924	Pan Phillips Screw, 1/4-20 x .75
6	710-0376	Hex Cap Screw, 5/16-18 x 1.0
7	712-0292	U-type Speed Nut, 1/4-20
8	712-04063	Flange Lock Nut, 5/16-18
9	726-0201	Speed Nut
10	747-2127	Hood Latch Rod
11	731-2286A	Head Light Lens
12	683-0305	Hood Bracket Assembly
13	731-2283A	Hood
14	731-2307B	LH Side Panel
15	731-2308B	RH Side Panel
16	710-0642	Screw, 1/4-20 x .750
17	736-0342	Flat Washer, .283 x .75 x .030
18	736-0173	Flat Washer, .28 x .74 x .063
19	736-3078	Flat Washer, .349 x 1.0 x .063
20	746-1085A	Choke Control
21	731-2284	Hood Plenum w/o Intake Bellow
22	746-1100	Throttle Control/Cable
23	710-1017	Torx Self-Tapping Screw
24	710-3217	Torx Screw, #8-32 x .375
25	712-0142	Hex Nut, 8-32
26	631-04152	Dash Panel, 4/6-style w/ Cargo Net
27	731-04213	Parking Brake Button
28	731-1857	Throttle Control Knob
29	731-04214	Cruise Control Button
30	747-1155	Brake/Cruise Pivot Rod
31	783-04285B	Dash Support Plate RH
32	783-04323B	Dash Support Plate LH
33	725-1649	Lamp Socket
34	751-0658E	Fuel Tank, 3-gallon
35	751-0603	Fuel Cap
36	725-1745	Ignition Key w/ plastic cover
37	725-1744	Ignition Key w/o plastic cover
38	710-0726	Self-tapping Screw, 5/16-18 x .75
39	747-04301	Side Panel Support
40	725-04036B	Systems Indicator Monitor
41	725-04227	Ignition Switch
42	725-0963	Miniature Lamp, 12V
43	710-1611B	Self-tapping Screw, 5/16-18 x .75
44	710-1652	Screw 1/4-20
45	725-1752	Electric PTO Switch
46	629-04083	Headlight Wire Harness †
47	725-04336	Hour Meter Wire Harness †
48	731-2234A	Intake Bellow

Seat and Chassis Components

This section illustrates the operator's seat, its mounting hardware, seat adjustment mechanisms, and components of the main chassis frame, including foot pads.

Seat and Chassis Components
REF.	PART	DESCRIPTION
1	710-1268	Screw, #10-16 x.375
2	712-04063	Nut, Flange Lock, 5/16-18
3	712-3027	Nut, Flange Lock, 1/4-20
4	720-0309A	Seat Adjuster Grip
5	726-0201	Nut, Speed,.3125 ID
6	731-04074	Spacer
7	732-0499	Compression Spring,.41 x 1.5
8	732-1184	Spring, Extension,.84 Dia. x 4.6
9	736-0275	Wash, Flat,.344 x.688 x.065
10	736-3019	Wash, Flat,.531x 1.062 x.134
11	738-0137A	Screw, Shoulder,.340 x.285,1/4-20
12	738-0296	Screw, Shoulder,.437x.268 5/16-18
13	738-0966A	Screw, Shoulder,.50 x.925, 3/8-16
14	783-0209D	Seat Bracket, Lift
15	783-0611	Seat Stop
16	783-0738C	Seat Pivot Bracket
17	783-0739A	Seat Adjustment Lever
18	783-0753	Seat Adjustment Selector
19	757-04014A	High Back Seat, Yellow
20	726-3046	Ratchet Clip
21	735-0656	RH Foot Pad, Rubber
22	735-0657	LH Foot Pad, Rubber
23	710-0260A	Bolt, Carriage, 5/16-18,.62, Gr1
24	710-0599	Screw, 1/4-20, 0.500
25	710-0726	Screw, 5/16-12, 0.750
26	710-0895	Screw, 1/4-15, 0.750
27	731-1990	Cover, Lift Lever
28	731-1993A	Cover, w/ Cup Holder
29	736-3078	Washer, Flat,.344 x 1.0 x.063
30	783-04333A	Fender
31	783-0677B	Adjustment Bracket, Lift
32	783-1489A	Mounting Bracket, Seat
33	710-0227	Screw, #8-18 x.50
34	726-0279	Plate, Insulator
35	725-1303	Spring Switch, Outer
36	725-1439	Spring Switch, Inner
37	726-0278	Plate, Insulator Boss
38	683-04079	Shaft Assembly, Lift
39	712-04065	Nut, Flange Lock, 3/8-16
40	714-0104	Pin, Cotter,.072 Dia. x 1.13
41	714-0111	Pin, Cotter, 3/32, 1.0
42	716-0106A	Ring, E Type,.625 Dia.
43	720-0311	Grip, Handle, 1/2
44	732-0874	Spring, Torsion
45	738-0138A	Screw, 5/16-18 x.620 Gr2
46	738-0380	Screw, Shld,.50 x.27, 3/8-16
47	741-0225	Bearing, Hex Flange
48	746-0968	Cable, Lift, 16.16
49	747-04155	Handle, Lift
50	756-1154	Pulley, Roller
51	783-0678A	Arm, Lift
52	736-0607	Lock Washer, 5/16
53	710-0604A	Screw 5/16-18

Steering and Front Axle

This section illustrates the steering system, including the steering wheel, steering shaft, steering gear, drag links, spindle assemblies, and front wheel mounting components.

Steering and Front Axle Components
REF.	PART	DESCRIPTION
1	710-04095	Hex Screw, 3/8-16, 1.00, Gr5
2	710-0514	Hex Screw, 3/8-16, 1.00, Gr5
3	710-0643	Hex Screw, 5/16-18, 1.00, Gr5
4	711-1408	Link, Drag, RH
5	711-1409A	Link, Drag, LH
6	712-0214	Nut, Hex Lock, 3/8-24
7	712-04065	Nut, Flange Lock, 3/8-16, Grf, Nylon
8	712-0459	Nut, Flange Lock, 7/16-20
9	712-3004A	Nut, Flange Lock, 5/16-18, Gr5
10	712-0240	Nut, Jam, 7/16-20, Gr2
11	717-1550E	Gear, Steering, 11/90 Ratio
12	717-1554	Gear, Pinion, Steering
13	723-0448A	Ball Joint, 7/16-20, Lock
14	736-3004	Washer, Flat,.406 x.875 x.105
15	736-3084	Washer, Flat,.51 x 1.12 x.06
16	710-1260A	Screw, 5/16-12, 0.750
17	738-04154	Spacer, Shoulder,.38 x 1.00 x.31
18	738-1001A	Shaft, Steering,.625 OD x 24.25 Lg
19	741-0475	Plastic Bushing.380 ID
20	738-0143	Screw, Shoulder,.498 x.340, 3/8-16
21	783-0726E	Pivot Bracket, Support RH
22	783-0727D	Pivot Bracket, Support LH
23	783-0728	Pivot Bracket, Bar
24	631-04008	Steering Wheel, 3 Spoke, Soft Grip
25	731-04065	Steering Wheel Cover
26	738-1011A	Shlder Screw,.5 x 2.2, 3/8-16
27	731-2290A	Deluxe Hub Cap
28	736-0316	Flat Washer,.78 x 1.589 x.06
29	714-04039	Cotter Pin, 5/32 x 1.25
30	719-04105	Cast Iron Pivot Bar
31	726-0341	Push Cap
32	638-04003	LH Axle Assembly,.750
33	638-04004	RH Axle Assembly,.750
34	711-0332	Pin, Clevis,.50 x.78
35	714-04023	Cotter Pin, Inter,.080 x 1.5625
36	783-0720A	Front Adjustment Bracket
37	741-0656A	Hex Flange Bearing
38	634-04087	Wheel Assembly Complete, 15 x 6
39	734-04040	Tire Only 15 x 6x6
40	634-04081	Rim Only w/ Valve Stem

Transmission and Drivetrain

This section illustrates the transmission and drive system, including the transmission housing, drive pulleys, idler pulleys, belts, and associated mounting hardware.

Transmission and Drivetrain Components
REF.	PART NO.	DESCRIPTION
1	17840	Transmission Mounting Bracket
2	618-0319	Hydrostatic Transmission
3	629-0949A	Harness Assembly †
4	710-0227	AB Screw #8-18 x 0.5
5	710-0520	Hex Bolt 3/8-16 x 1.5
6	710-0599	TT Screw 1/4-20 x 0.5
7	710-0726	AB Screw 5/16-12 x 0.75
8	710-0502A	TT Sems Screw 3/8-16 x 1.250
9	710-1266	Hex Bolt 5/16-18 x 3.5
10	710-3007	Carriage Screw
11	710-3011	Hex Bolt 3/8-16 x 2.25
12	710-0778	Screw, 1/4-20 x 1.50
13	711-0832	Ferrule
14	736-0258	Flat Washer, 385 x 1.0 x .135
15	712-0291	Hex Lock Nut 1/4-20
16	712-3066	Hex Nut, 1/2-20
17	712-04063	Flange Lock Nut, 5/16-18
18	712-3017	Flanged Lock Nut 3/8-16
19	750-0566A	Spacer,.260 x.372 x 1.030 Lg
20	714-0104	Cotter Pin
21	714-0507	Cotter Pin
22	714-0111	Cotter Pin
23	725-0157	Cable Tie †
24	725-1644	Switch
25	726-0154	Cable Tie t
26	726-0320	Insulator Nut Plate
27	731-05299	Sleve, 0.765 x 1.5
28	731-1449A	Blade Fan
29	732-0209	Extension Spring
30	732-04323A	Extension Spring
31	732-0716	Extension Spring
32	732-0729	Wire Ring
33	732-0994	Extension Spring
34	732-3118	Extension Spring
35	736-0169	Lock Washer
36	736-0866	Flat Washer
37	736-0921	Lock Washer
38	736-3010	Flat Washer
39	738-0372B	Shoulder Spacer
40	747-04139	Brake Rod
41	747-1149	Bypass Rod
42	747-1151	Control Rod
43	748-0334	Transaxle Spacer
44	731-2290A	Hub Cap
45	754-0461	V Belt, A x 78" Lg
46	756-04209	Idler Pulley
47	756-04224	Flat Idler Pulley
48	756-04111	Input Pulley
49	783-04442	Idler Bracket
50	783-0810B	Torq Bracket
51	783-1019A	Actuator Bracket
52	647-0031B	Brake Control Assembly
53	647-0049A	Hydrostatic Control Assembly
54	683-0267C	Pedal Assembly
55	710-0650	TT Screw 5/16-18 x 0.875
56	736-0187	Flat Washer,.64 x 1.24 x.06
57	710-1260A	LD Screw 5/16-18 x 0.75
58	710-1611B	TT Screw 5/16-18 x 0.75
59	711-04159B	Pin
60	712-04065	Flange Lock Nut, 3/8-16
61	712-3004A	Flange Lock Nut, 5/16-18
62	712-0240	Jam Nut 7/16-20
63	736-0119	Lock Washer 5/16
64	732-0335	Compression Spring
65	732-0955	Extension Spring
66	732-0963	Extension Spring
67	735-0662	Control Pedal
68	735-3049	Brake Control Pedal
69	736-3008	Flat Washer
70	738-0155	Shoulder Screw
71	738-0380	Shoulder Screw
72	741-0225	Hex Flange Bearing
73	741-3065B	Hex Flange Bearing
74	747-04093	Brake Lock Control Rod
75	747-04096	Cruise Control Rod
76	748-04039B	Cruise Latch
77	783-04612	Steering Support Bracket
78	683-0663E	Hydro Lockout Bracket
79	783-0773A	Brake Pedal
80	710-0224	Screw, #10-16 x.500
81	17962	Switch Plate
82	725-04039	Interlock Switch
83	710-1007	Screw, 3/8-16 x 1.50
84	736-0430	Flat Washer 350 x 1.59 x .062
85	736-0242	Bell Washer,.340 x.872 x.060
86	710-0627	Screw, 5/16-24 x.750
87	634-0177	Wheel Complete, 20 x 10 x 8
88	734-1873	Tire Only, 20 x 10 x 8
89	634-0070	Rim Only

Mower Deck and Deck Lift Mechanism

This section provides exploded views of the mower deck and its lift mechanism. It details the deck shell, blades, spindle assemblies, pulleys, belts, deck lift arms, springs, and adjustment rods.

Mower Deck and Deck Lift Components
REF.	PART NO.	DESCRIPTION
1	16606	Hook, Retainer
2	618-04125	Spindle Assembly
3	683-0254B	Hanger Bracket Assembly
4	683-04098	Idler Bracket
5	683-04075	Weldment, 50-inch Deck
6	703-3279	Chute Stop
7	710-0347	Screw, 3/8-16, 1.75
8	710-3103	Screw, 5/16-18 x 2.00
9	710-0528	Screw, 5/16-18, 1.25, Gr5
10	710-0599	Screw, 1/4-20 x 0.5
11	710-0607	Screw, 5/16-18 x.500
12	710-1260A	Screw, 5/16-18 x.75
13	710-04095	Hex Head Screw, 3/8-16 x 1.0
14	710-3178	Screw, Carriage, 3/8-16 x.75
15	736-0300	Washer, Flat,.406 x.875 x.059
16	712-04065	Nut, Nylon Lock, 3/8-16
17	712-0417A	Nut, Hex, Flange, 5/8-18
18	712-04063	Nut, Nylon Lock, 5/16-18
19	712-0431	Nut, Flange Lock, 3/8-16
20	712-3010	Nut, Hex, 5/16-18, Gr5
21	712-3019	Nut, 7/16-14
22	731-04651	Mulch Plug
23	714-0470	Pin, Cotter, 1/8 x 1.25
24	732-0934	Extension Spring, 1.15 Dia. x 5.99
25	717-04074	Deck Adjustment Gear
26	712-3083	Lock Nut, Hex, 1/2-13, Nylon
27	732-0306A	Spring, Compression,.531 x 1.75
28	732-04598	Spring, Extension,.94 x 6.74
29	734-04155	Deck Wheel, 5.0
30	734-0973	Deck Wheel, 5.0
31	736-0119	Washer, Lock, 5/16, Regular Duty
32	736-0407	Washer, Bell,.45 x 1.0 x.062
33	736-0406	Washer, Flat,.442 x 1.38 x.060
34	737-3000	Fitting, Lube, 3/16
35	738-0373	Shoulder Screw 3/8-16
36	738-3005A	Screw, Shoulder,.68 x 1.59
37	742-04053A	Blade
38	747-1116	Rod, Handle, Deck Release
39	737-04003C	Deck Water Nozzle
40	754-04077	Belt, V-Type, Aramid
41	756-04129	Pulley, Idler, 3.5"
42	747-1324	Rod, Deck Adjustment
43	783-04399	LH Belt Cover
44	783-04400	RH Belt Cover
45	783-04414	Deck Skirt, Center
46	783-04415	Deck Skirt, RH
47	712-0206	Hex Nut, 1/2-13
48	712-0229	Push Nut, 3/8
49	712-0641	Hex Nut, M16-1.5
50	736-0780	Lock Washer
51	736-3084	Flat Washer,.51 x 1.12 x.06
52	732-3070	Torsion Spring,.44ID x 2.10
53	783-04470	Chute Bracket
54	711-1762	Hinge Pin
55	731-3131A	Chute Deflector
56	738-3056	Shoulder Screw 1/2 x 2.5
57	721-04041	Water Nozzle Adapter

[Genuine Factory Parts Seal]

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