Simplicity Express Series User manual

Parts Manual
Rev. 5/00
TP 400-2247-02-EX-SMA
14.5HP GEAR TRACTORS
Mfg. No. Description
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 1415G (Export)
1693732 Express, 115G (Export)
15.5HP HYDRO TRACTORS
Mfg. No. Description
1693458 Express, 15.5HP Hydro
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 1416H (Export)
1693734 Express, 116H (Export)
EXPRESS SERIES
LAWN TRACTORS & MOWER DECKS
17HP HYDRO TRACTORS
Mfg. No. Description
1693525 Express, 17HP Hydro
1693641 Express, 17HP Hydro (Export)
1693670 Express, 1417H (Export)
1693736 Express, 117H (Export)
MOWER DECKS
Mfg. No. Description
1693464 38” Mower Deck
1693588 38” Mower Deck (Export)
1693527 44” Mower Deck
1693591 44” Mower Deck (Export)

© Copyright 1999 Simplicity Manufacturing, Inc.
All Rights Reserved. Printed In USA.
MANUFACTURING, INC.
500 N Spring Street / PO Box 997
Port Washington, WI 53074-0997 USA

Table of Contents
1
TP 400-2247-02-EX-SMA
This Manual Covers The Following Products:
14.5HP GEAR TRACTORS PAGES
Mfg. No. Description
1693452 Express, 14.5HP Gear 1-13, 22-33
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)
15.5HP HYDRO TRACTORS PAGES
Mfg. No. Description
1693458 Express, 15.5HP Hydro 1-7, 14-33
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 15.5HP Hydro (Export)
1693734 Express, 15.5HP Hydro (Export)
17HP HYDRO TRACTORS PAGES
Mfg. No. Description
1693525 Express, 17HP Hydro 1-7, 14-33
1693641 Express, 17HP Hydro (Export)
1693670 Express, 17HP Hydro (Export)
1693736 Express, 17HP Hydro (Export)
MOWER DECKS PAGES
Mfg. No. Description
1693464 38” Mower Deck 32-39
1693588 38” Mower Deck (Export)
Mfg. No. Description
1693527 44” Mower Deck 32, 33, 40-45
1693591 44” Mower Deck (Export)
LAWN TRACTOR COMPONENTS PAGES
Frame & Front Axle Group . . . . . . . . . . . . . . . . . . . . . .2
Steering Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Engine - 14.5HP, 15.5HP & 17HP B&S Intek . . . . . . . .6
Gear Transaxle - Peerless Model MST 205-515A
Transmission Drive & Carrier Group . . . . . . . . . . .8
REFERENCE: Service Parts
- Peerless Model MST 205-515A Transaxle . . . .10
Hydro Transaxle - Tuff-Torq Model K51
Transmission Drive & Carrier Group . . . . . . . . . .14
REFERENCE: Service Parts
- Tuff Torq K51 Transaxle . . . . . . . . . . . . . . . . . .18
Controls & Linkage Group . . . . . . . . . . . . . . . . . . . . .22
Hood, Grille & Dash Group . . . . . . . . . . . . . . . . . . . .24
Seat & Seat Deck Group . . . . . . . . . . . . . . . . . . . . . .26
Electrical Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Wheels & Tires Group . . . . . . . . . . . . . . . . . . . . . . . .30
Decals Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
MOWER DECK COMPONENTS PAGES
38” Mower Decks - Housing, Arbors & Blades . . . . .34
38” Mower Decks - Clutch & Support . . . . . . . . . . . .36
38” Mower Decks - Height Adjustment . . . . . . . . . . .38
44” Mower Decks - Housing, Arbors & Blades . . . . .40
44” Mower Decks - Clutch & Support . . . . . . . . . . . .42
44” Mower Decks - Height Adjustment . . . . . . . . . . .44
Part Number Index . . . . . . . . . . . . . . . . . . . . . . . . . .46
Torque Specification Chart . . . . . . . .Inside Back Cover
© Copyright 1997 Simplicity Manufacturing, Inc. All Rights Reserved.

1
4
3
5
9
6
8
21
17
13
13
14
12
13
15
12
15
23
18
22
24
21
21
20
19
16
7
10
10
2
21
11
2
TP 400-2247-02-EX-SMA
© Copyright 1999 Simplicity Manufacturing, Inc. All Rights Reserved.
Frame & Front Axle Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
985478_985495
The above parts group applies to the following Mfg. Nos.:
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)
1693458 Express, 15.5HP Hydro
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 15.5HP Hydro (Export)
1693734 Express, 15.5HP Hydro (Export)
1693525 Express, 17HP Hydro
1693641 Express, 17HP Hydro (Export)
1693670 Express, 17HP Hydro (Export)
1693736 Express, 17HP Hydro (Export)

3
TP 400-2247-02-EX-SMA
Frame & Front Axle Group
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
The above parts group applies to the following Mfg. Nos.:
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)
1693458 Express, 15.5HP Hydro
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 15.5HP Hydro (Export)
1693734 Express, 15.5HP Hydro (Export)
1693525 Express, 17HP Hydro
1693641 Express, 17HP Hydro (Export)
1693670 Express, 17HP Hydro (Export)
1693736 Express, 17HP Hydro (Export)
1 1720101 1 FRAME ASSEMBLY
2 1715015 1 PLUG, Hole
3 1715016 1 PAD, Footrest, R.H.
4 1714417 1 PAD, Footrest, L.H.
5 1704351 12 FASTENER, Plastic, Ratchet
6 1935255 4 SPEED NUT, Tinnerman Lug Type, 5/16-18
7 1715796 1 WRAPPER, Rear Frame (Gear Models Only)
8 1930591 4 CAPSCREW, Whiz Lock Hex Hd, 5/16-18 x 3/4
9 1715795 1 WRAPPER, Rear Frame (Hydro Models Only)
10 1924856 2 CAPSCREW, Taptite Hex Washer Hd, 5/16-18 x 1/2 (Hydro Models Only)
11 1719951 1 BRACKET, Speed Control (Hydro Models Only)
12 1920328 2 CAPSCREW, Hex Hd, 1/2-13 x 1-1/2
13 1918431 3 WASHER, 1/2
14 1709235 1 BUSHING
15 1930644 2 NUT, Hex Flange Hd, 1/2-13, 2-Way Lock
16 1717189 1 CARRIER, Transmission (Hydro Models Only)
16 1717458 1 CARRIER, Transmission (Gear Models Only)
17 1717286 1 SPACER
18 1713400 1 TORSION BAR (Gear Models Only)
18 1717424 1 TORSION BAR (Hydro Models Only)
19 1919439 1 NUT, ESNA Hex Lock, 3/8-16
20 1924356 1 WASHER , 3/8
21 176440 6 BUSHING
22 1719868 1 SPACER
23 1719869 1 HITCH, J-Hook
24 1922918 1 CAPSCREW, Hex Hd, 3/8 - 16 x 3-1/4 G5

Thread Lock (#271 Loctite)
on items 12 and 24.
2
1
4
5
26
13
25
19
18
21
11
24
17
20
6
8
7
28
16
22
12
9
23
15
27
11
10
3
29
16
13
16
17
18
16
15
14
4
TP 400-2247-02-EX-SMA
© Copyright 1999 Simplicity Manufacturing, Inc. All Rights Reserved.
Steering Group
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
985474
The above parts group applies to the following Mfg. Nos.:
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)
1693458 Express, 15.5HP Hydro
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 15.5HP Hydro (Export)
1693734 Express, 15.5HP Hydro (Export)
1693525 Express, 17HP Hydro
1693641 Express, 17HP Hydro (Export)
1693670 Express, 17HP Hydro (Export)
1693736 Express, 17HP Hydro (Export)

5
TP 400-2247-02-EX-SMA
Steering Group
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
The above parts group applies to the following Mfg. Nos.:
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)
1693458 Express, 15.5HP Hydro
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 15.5HP Hydro (Export)
1693734 Express, 15.5HP Hydro (Export)
1693525 Express, 17HP Hydro
1693641 Express, 17HP Hydro (Export)
1693670 Express, 17HP Hydro (Export)
1693736 Express, 17HP Hydro (Export)
1 1719810 1 CAP, Steering Wheel
2 1719471 1 STEERING WHEEL
3 1714400 1 TUBE, Flex
4 1960540 1 PIN, Spring, 5/16 x 2-1/2 (Domestic Only)
5 1719472 1 SHAFT & PINION ASSEMBLY, Steering
6 1931350 2 CARRIAGE BOLT, 3/8-16 x 1
7 1703508 1 PLATE, Steering, Mounting
8 1928352 2 NUT, Hex Flange Whiz Lock, 3/8-16
9 1920415 1 CAPSCREW, Hex Hd, 3/8-16 x 1-1/4
10 1922611 1 WASHER, 3/8
11 1930645 3 NUT, Hex Flange Whiz Lock, 3/8-16
12 1931335 1 CARRIAGE BOLT, 5/16-18 x 1
13 1611710 3 KLIPRING
14 1721472 1 ARM, Steering, L.H.
15 1960160 2 WASHER, 3/4
16 1960114 4 WASHER, 3/4
17 1721542 2 SPINDLE ASSEMBLY
18 1713791 2 SPACER
19 1721473 1 ARM, Steering, R.H.
20 1713454 1 TIE ROD
21 1960268 2 CARRIAGE BOLT, 3/8-16 x 1-1/4
22 1710437 1 SPACER
23 1935048 1 NUT, Hex Flange Lock, 5/16-18
24 1713469 1 DRAG LINK
25 1664847 1 CAPSCREW, Taptite Hex Washer Hd, 5/16-18 x 3/4
26 1713375 1 STEERING GEAR ASSEMBLY
27 1666001 1 BUSHING
28 176440 1 BUSHING
29 1919314 1 PIN, Cotter, 3/16 x 1-1/4

See
Transmission
Group
See
Electrical
Group
Furnished
by Engine
Mfr.
Torque to
15-20 in. lbs.
Service Only
Furnished
by Engine
Mfr.
Apply anti-seize
to muffler bolts.
Replaced by
Ref #9
5
22
18
6
7
17
16
21
20
23
19
2
1
4
15
14
13
12
10
11
17
18
17
3
9
8
24
25
27
26
6
TP 400-2247-02-EX-SMA
© Copyright 1999 Simplicity Manufacturing, Inc. All Rights Reserved.
Engine - 14.5HP, 15.5HP & 17HP B&S Intek
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
985469_985470_985559
The above parts group applies to the following Mfg. Nos.:
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)
1693458 Express, 15.5HP Hydro
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 15.5HP Hydro (Export)
1693734 Express, 15.5HP Hydro (Export)
1693525 Express, 17HP Hydro
1693641 Express, 17HP Hydro (Export)
1693670 Express, 17HP Hydro (Export)
1693736 Express, 17HP Hydro (Export)

7
TP 400-2247-02-EX-SMA
Engine - 14.5HP, 15.5HP & 17HP B&S Intek
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
* Obtain repair parts from your local Briggs & Stratton Distributor.
** Replaced by Reference 9.
The above parts group applies to the following Mfg. Nos.:
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)
1693458 Express, 15.5HP Hydro
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 15.5HP Hydro (Export)
1693734 Express, 15.5HP Hydro (Export)
1693525 Express, 17HP Hydro
1693641 Express, 17HP Hydro (Export)
1693670 Express, 17HP Hydro (Export)
1693736 Express, 17HP Hydro (Export)
1 1720040 1 SHIELD, Muffler Side
2 1720039 1 SHIELD, Muffler Top
3 1960001 2 CAPSCREW, Hex Washer Hd, Plastite, #10 - 14 x 5/8
4 1924856 1 CAPSCREW, Taptite Hex Washer Hd, 5/16-18 x 1/2
5 * 1 ENGINE, 14.5HP B&S INTEK
5 * 1 ENGINE, 15.5HP B&S INTEK
5 * 1 ENGINE, 17HP B&S INTEK
6 920427 1 LOCKWASHER, External Tooth, 3/8
7 916950 1 NUT, Hex, 3/8-16 NC-2B
8 1931648 2 CAPSCREW, Whiz Lock Hex Hd, 5/16-18 x 1/2
9 1721131 1 BAFFLE, Heat
10 173206 1 FUEL FILTER
11 1960112 2 HOSE CLAMP
12 1657575 1 HOSE, Fuel, 1/4 ID x 1/2 OD x 12
13 1719768 1 KNOB, Throttle (Red)
14 1960498 2 CAPSCREW, Plastite Hex Washer Hd, 1/4-10 x 5/8
15 1707388 1 CONTROL, Throttle
16 1719456 1 PULLEY (with Hub)
17 1933263 3 WASHER, 7/16
18 930598 3 CAPSCREW, Hex Washer Hd, Taptite, 3/8-16 x 1-1/2
19 1719460 1 GUIDE, Belt
20 1960370 1 CAPSCREW, Hex Hd, 7/16-20 x 2-1/2
21 1918199 1 LOCKWASHER, 7/16
22 960361 1 CAPSCREW, Hex Washer Hd, Taptite, 3/8-16 x 2
23 1719458 1 MUFFLER ASSEMBLY
24 1719961 1 SCREEN, Exhaust
25 1720037** 1 BAFFLE, Heat
26 1960034** 1 CAPSCREW, Plastite Hex Washer Hd, #10-14 x 1/2
27 1720046** 1 BAFFLE, Engine, LH

Transmission Drive & Carrier Group — Peerless Model MST 205-515ATransaxle
22
21 23
24
2626
27
30
29
28
31 32 33
34
35 32
36
43
37
19
42
39
41
40
39
38 38
44
3131
28
49
48
47
46
45
38
31
50
31
34
2
5
3
6
1
10
14 15
11
13
12
17
16
18
19
20
9
7
9
2525
8
8
TP 400-2247-02-EX-SMA
© Copyright 1999 Simplicity Manufacturing, Inc. All Rights Reserved.
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
985471
The above parts group applies to the following Mfg. Nos.:
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)

Transmission Drive & Carrier Group — Peerless Model MST 205-515ATransaxle
9
TP 400-2247-02-EX-SMA
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
The above parts group applies to the following Mfg. Nos.:
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)
1 1720619 1 TRANSMISSION ASSEMBLY
2 1716103 2 ANCHOR, Torsion Bar
3 960551 6 CAPSCREW, Taptite Hex Washer Hd, 5/16-18 x 2-1/2
4 1927557 2 NUT, Hex, Flange Whiz Lock, 5/16-18
5 1919381 2 WASHER, 5/16
6 1930601 2 CAPSCREW, Taptite Hex Washer Hd, 5/16-18 x 5/8
7 1715043 2 SPACER (Domestic Models)
8 927794 2 E-RING (Domestic Models)
9 960202 4 WASHER, 3/4 (Domestic Models)
10 905123 1 KEY, Woodruff #9 (Domestic Models)
11 1714764 1 PULLEY ASSEMBLY
12 927103 1 RING, Retaining
13 1664789 1 V-BELT, HA
14 1717749 2 KEY
15 1928703 1 SPEED NUT, “U” Type, #14A
16 1920415 1 CAPSCREW, Hex Hd, 3/8-16 x 1-1/4
17 1924940 2 WASHER, Plain, 3/8 (Domestic Models)
18 1719595 1 GUIDE, Belt
19 1916965 1 LOCKWASHER, 3/8
20 1916950 1 NUT, Hex, Full, 3/8-16
21 1713843 1 KNOB, Plastic, Gear Shift
22 1719762 1 ROD, Shift
23 156302 1 SPRING, Gear Shift
24 1918448 2 PIN, Cotter, 3/32 x 1
25 1960027 2 WASHER, 1/2
26 1714536 2 PULLEY HALF, Engine PTO (Gear Models)
27 1931333 1 CARRIAGE BOLT, 5/16-18 x 3/4
28 1917372 2 NUT, Hex, Full, 5/16-18
29 1917356 1 LOCKWASHER, 5/16
30 1720293 1 GUARD, Belt
31 1919438 5 NUT, Hex Nylon Lock, 5/16-18
32 1919326 2 WASHER, Plain, 5/16
33 1719824 1 SPRING, Compression
34 1719825 1 SPRING, Compression
35 1714767 1 ROD, Brake
36 1918447 1 PIN, Cotter, 3/32 x 3/4
37 1678341 1 SPRING, Return
38 1960223 3 CARRIAGE BOLT, 5/16-18 x 1-1/4
39 1663114 2 BUSHING, Plastic, 5/8
40 1660365 1 BELLCRANK ASSY
41 921133 1 FITTING, Grease
42 1924940 1 WASHER, Plain, 3/8
43 1921965 1 CAPSCREW, Hex Hd., 3/8-16 x 3/4
44 1715028 1 LINK, Shift, Lower
45 1960555 1 CARRIAGE BOLT, 5/16-18 x 1-1/2
46 1714556 1 LEVER, Shift
47 1921319 1 WASHER, Plain, 1/4
48 1916964 1 LOCKWASHER, 1/4
49 1922234 1 CAPSCREW, Hex Hd, 1/4-28 x 5/8
50 1715029 1 LINK, Shift, Upper

10
TP 400-2247-02-EX-SMA
© Copyright 1999 Simplicity Manufacturing, Inc. All Rights Reserved.
REFERENCE: Service Parts — Peerless Model MST 205-515ATransaxle
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
205-515A
The above parts group applies to the following Mfg. Nos.:
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)

11
TP 400-2247-02-EX-SMA
REFERENCE: Service Parts — Peerless Model MST 205-515ATransaxle
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
Peerless transmission parts must be ordered through your local Tecumseh/Peerless distributor.
© Copyright 1997 Tecumseh Products Company. All Rights Reserved.
The above parts group applies to the following Mfg. Nos.:
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)
1 772144 1 Transaxle Cover
2 780086A 2 Needle Bearing 5/8” ID
3 770128 1 Transaxle Case
4 776395 1 Countershaft
5 776409 1 Output Shaft
6 778364 1 Spur Gear (38 teeth)
6A 778365 1 Spur Gear (15 teeth-steel)
7 778330 1 Spur Gear (11 teeth-steel)
8 792136A 2 Shift Key
9 784352 1 Shift Collar
10 784378 1 Shift Rod & Fork
11 778334 1 Bevel Gear (30 teeth)
12 778309 1 Input Bevel Pinion (13 teeth)
13 778327 2 Bevel Gear (16 teeth-steel)(Incl. 14)
14 778327 2 Bevel Gear (16 teeth-steel)(Incl. 13)
15 778312A 1 Ring Gear (43 teeth)
17 786139 1 Drive Pin
18 786102 1 Spacer
20 792077 1 Ball 5/16” dia
21 792078 1 Set Screw 3/8-16 x 3/8”
22 792079 1 Spring
25 792073A 16 Screw 1/4-20 x 1-1/4”
25A 792177 2 Screw 1/4-20 X 1-3/8”
26 792125 4 Retaining Ring (pkg of 2)
27 792035 1 Retaining Ring
28 788040 1 Retaining Ring
29 780072 4 Washer
29A 780160 1 Washer
29B 780165 2 Thrust Washer
30 780108 4 Washer
31 780001 2 Washer (.056 wide) (USE AS NEEDED)
31A 780195 2 Flat Washer (.062 wide)
32 788083 1 Oil Seal 5/8”
34 780194 2 Bushing
35 780193 2 Flanged Bushing
35A 780197 2 Flanged Bushing 3/4”
36 790075 1 Brake Disk
37 790007 1 Brake Pad Plate
38 799021 2 Brake Pad (pkg of 2)
39 786026 2 Dowel Pin
40 792076A 1 Washer
41 790019 1 Brake Lever
42 792073A 1 Screw 1/4-20 x 1-1/4”
42A 792085A 1 Screw 1/4-20 x 2-1/4”
43 792075 1 Locknut 5/16-24
44 790025 1 Brake Pad Holder
45 786066 1 Spacer
46 786086 1 Brake Lever Bracket
47 774942 1 Axle (12-7/32” long)
48 774869 1 Axle (16-13/16” long)
49 778356 1 Spur Gear (29 teeth-steel)

12
TP 400-2247-02-EX-SMA
© Copyright 1999 Simplicity Manufacturing, Inc. All Rights Reserved.
REFERENCE: Service Parts — Peerless Model MST 205-515ATransaxle
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
205-515A
The above parts group applies to the following Mfg. Nos.:
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)

13
TP 400-2247-02-EX-SMA
REFERENCE: Service Parts — Peerless Model MST 205-515ATransaxle
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
Peerless transmission parts must be ordered through your local Tecumseh/Peerless distributor.
© Copyright 1997 Tecumseh Products Company. All Rights Reserved.
The above parts group applies to the following Mfg. Nos.:
1693452 Express, 14.5HP Gear
1693586 Express, 14.5HP Gear (Export)
1693666 Express, 14.5HP Gear (Export)
1693732 Express, 14.5HP Gear (Export)
50 778354 1 Spur Gear (23 teeth-steel)
51 778352 1 Spur Gear (19 teeth-steel)
52 778350 1 Spur Gear (16 teeth-steel)
53 778346 1 Spur Gear (15 teeth-steel)
56 778355 1 Spur Gear (11 teeth-steel)
57 778353 1 Spur Gear (17 teeth-steel)
58 778351 1 Spur Gear (21 teeth-steel)
59 778349 1 Spur Gear (24 teeth-steel)
60 778345 1 Spur Gear (25 teeth)
63 786071 1 Countershaft Spacer 1-1/8” x 3/8”
64 786072 1 Brake Shaft Spacer 1-3/8” X 3/8”
65 780189 1 Washer
66 776394 1 Input Shaft
67 776396 1 Shifter & Brake Shaft
69 792170 1 Retaining Ring
70 786178 1 Spacer
71B 788092 1 “O” Ring
72A 788091 1 “O” Ring
72 792165 1 Threaded Plug 9/16-18
73 780140 2 Needle Bearing 3/4”
75 786084 2 Sleeve .999 ID
76 780090 1 Washer
77 788078A 1 Inverted Retaining Ring
82 778333 1 Bevel & Spur Gear (30 & 13 teeth)
83 778338 1 Spur Gear (27 teeth)
85 792154 1 Oil Fill Plug
87 788089 1 Oil Seal 9/16”
150 788093 1 Liquid Gasket RTV Silicone
157 788088 2 Oil Seal 3/4”
180 730229A 1 Gear Oil 80W90

See Wheels & Tires in
Miscellaneous Group(s)
Changed by
Service Kit 1686794
6
7
8
9
10
6
54
12
11
3
44
2
52
53
55
46
48
42
51
45
49
17
18
19
56
20
21
2323
22
26
25
24
27
28
29
30
32
31
33
28
34
36
37
25
26
35
3838
42
43
13
14
15
47
44
55
16
1
57
50
23
41
40
39
44
42
50
41
40 39
52
14
TP 400-2247-02-EX-SMA
© Copyright 1999 Simplicity Manufacturing, Inc. All Rights Reserved.
Transmission Drive & Carrier Group — Tuff-Torq Model K51
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
985472
The above parts group applies to the following Mfg. Nos.:
1693458 Express, 15.5HP Hydro
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 15.5HP Hydro (Export)
1693734 Express, 15.5HP Hydro (Export)
1693525 Express, 17HP Hydro
1693641 Express, 17HP Hydro (Export)
1693670 Express, 17HP Hydro (Export)
1693736 Express, 17HP Hydro (Export)

15
TP 400-2247-02-EX-SMA
Transmission Drive & Carrier Group — Tuff-Torq Model K51
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
* Replaced by Service Kit 1686794.
The above parts group applies to the following Mfg. Nos.:
1693458 Express, 15.5HP Hydro
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 15.5HP Hydro (Export)
1693734 Express, 15.5HP Hydro (Export)
1693525 Express, 17HP Hydro
1693641 Express, 17HP Hydro (Export)
1693670 Express, 17HP Hydro (Export)
1693736 Express, 17HP Hydro (Export)
1 1719735 1 TRANSMISSION ASSEMBLY
2 1713843 1 KNOB, Plastic, Gear Shift
3 1719469 1 ROD, Shift
4 1918448 2 PIN, Cotter, 3/32 x 1
5 1960027 2 WASHER, 1/2
6 1919326 2 WASHER, Plain, 5/16
7 1960541 1 CAPSCREW, Taptite Hex Washer Hd, 5/16-18 x 3/4
8 1717292 1 GUIDE, Belt
9 1917372 1 NUT, Hex, Full, 5/16-18
10 1917356 1 LOCKWASHER, 5/16
11 1717425 1 FAN
12 1717397 1 BELT, Drive
13 1960353 1 WASHER, 1/4
14 1916964 1 LOCKWASHER, 1/4
15 1960613 1 CAPSCREW, Hex Hd, M06 - 1.00 x 30mm
16 1719902 1 PULLEY & HUB ASSEMBLY
17 1930810 3 CAPSCREW, Taptite Hex Washer Hd, 1/4-20 x 1-1/2
18 1928698 1 JAM NUT, Top Lock, 5/16-18
19 106681 1 SPRING, Brake Return
20 1717749 2 KEY
21 1717451 2 SPACER (Gear Models)
22 927794 2 E-RING (Gear Models)
23 960202 8 WASHER, 3/4 (Gear Models)
24 1923358 1 LOCK NUT, Center, 1/4-20
25 1930642 2 NUT, Hex Flange Lock, 1/4-20
26 1706495 2 SPACER
27 1717427 1 ANCHOR, Torsion Bar, L.H.
28 1960586 4 CAPSCREW, Whiz Lock Hex Hd, 5/16-18 x 2-1/2
29 960584 1 CAPSCREW, Taptite Hex Washer Hd, 5/16-18 x 3-1/2
30 960583 1 CAPSCREW, Taptite Hex Washer Hd, 5/16-18 x 3
31 1960585 1 CAPSCREW, Whiz Lock Hex Hd, 5/16-18 x 1-1/4
32 1927557 1 NUT, Hex, Flange Whiz Lock, 5/16-18
33 960551 2 CAPSCREW, Taptite Hex Washer Hd, 5/16-18 x 2-1/2
34 1717428 1 ANCHOR, Torsion Bar, R.H.
35 1717737 1 BRAKE LINK
36 1717452 1 PULLEY ASSEMBLY, Engine PTO (Hydro Models)
37 171241 1 KEY, PTO Pulley (Hydro Models)
38 1921960 2 CAPSCREW, Hex Hd, 1/4-20 x 1
39 1720675 1 SPACER
40 1918199 1 LOCKWASHER, Spring, 7/16
41 1950036 1 CAPSCREW, Hex Hd, M10-1 1/2 x 25MM
42 1919438 2 NUT, Hex Nylon Lock, 5/16-18
43 1931277 4 NUT, Hex Flange Whiz-Lock, 5/16-18
44 1960534 2 WASHER, 3/8
45 108717 1 SPACER
46 1924356 1 WASHER, 3/8

See Wheels & Tires in
Miscellaneous Group(s)
Changed by
Service Kit 1686794
6
7
8
9
10
6
54
12
11
3
44
2
52
53
55
46
48
42
51
45
49
17
18
19
56
20
21
2323
22
26
25
24
27
28
29
30
32
31
33
28
34
36
37
25
26
35
3838
42
43
13
14
15
47
44
55
16
1
57
50
23
41
40
39
44
42
50
41
40 39
52
16
TP 400-2247-02-EX-SMA
© Copyright 1999 Simplicity Manufacturing, Inc. All Rights Reserved.
Transmission Drive & Carrier Group — Tuff-Torq Model K51
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
985472
The above parts group applies to the following Mfg. Nos.:
1693458 Express, 15.5HP Hydro
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 15.5HP Hydro (Export)
1693734 Express, 15.5HP Hydro (Export)
1693525 Express, 17HP Hydro
1693641 Express, 17HP Hydro (Export)
1693670 Express, 17HP Hydro (Export)
1693736 Express, 17HP Hydro (Export)

17
TP 400-2247-02-EX-SMA
Transmission Drive & Carrier Group — Tuff-Torq Model K51
REF NO. PART NO. QTY. DESCRIPTION
Footnotes:
* Replaced by Service Kit 1686794.
The above parts group applies to the following Mfg. Nos.:
1693458 Express, 15.5HP Hydro
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 15.5HP Hydro (Export)
1693734 Express, 15.5HP Hydro (Export)
1693525 Express, 17HP Hydro
1693641 Express, 17HP Hydro (Export)
1693670 Express, 17HP Hydro (Export)
1693736 Express, 17HP Hydro (Export)
47 1916965 1 LOCKWASHER, 3/8
48 1916950 1 NUT, ESNA Hex Lock, 3/8-16
49 1921977 1 CAPSCREW, Hex Hd, 5/16-18 x 1-1/4
50 1678341* 1 SPRING, Return
50 1720700 1 SPRING, Torsion
51 1719728 1 LINK, Lower Shift
52 1719963* 1 LEVER & CLEVIS ASSEMBLY
52 1720681 1 LEVER & CLEVIS ASSEMBLY
53 1960223 1 CARRIAGE BOLT, 5/16-18 x 1-1/4
54 1921333 1 CAPSCREW, Hex Hd, 5/16-18 x 1
55 1960268 1 CARRIAGE BOLT, 3/8-16 x 1-1/4
56 1717442 1 ROD, Transmission Release
57 1918447 1 PIN, Cotter, 3/32 x 3/4

62
61
60
59 58
575655
54
53
52
51 50
49
48
47
46
45
44
43
42
41
40
39
38
37
36 35
34
33
32
19 18 17
28
27
31
30
29
28
27
26
25
24
23
22
21
20
20
19
18
17
16
15
14
13
11
12
11
10
9
8
7
6
5
4
3
2
63
64
65
66
67
68
69
70
71
72
58
56
57
63
21
1
2
69
70
55
56
18
TP 400-2247-02-EX-SMA
© Copyright 1999 Simplicity Manufacturing, Inc. All Rights Reserved.
REFERENCE: SERVICE PARTS — Tuff Torq K51 Transaxle
NOTE: Unless noted otherwise,
use the standard hardware torque
specification chart.
TTK51
The above parts group applies to the following Mfg. Nos.:
1693458 Express, 15.5HP Hydro
1693589 Express, 15.5HP Hydro (Export)
1693668 Express, 15.5HP Hydro (Export)
1693734 Express, 15.5HP Hydro (Export)
1693525 Express, 17HP Hydro
1693641 Express, 17HP Hydro (Export)
1693670 Express, 17HP Hydro (Export)
1693736 Express, 17HP Hydro (Export)