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Parts Manual
SOVEREIGN / 900 / 2800
SERIES GARDEN TRACTORS & MOWER DECKS
18HP TRACTORS
18HP OHC TRACTORS W/ POWER STEER
Mfg. No. Description
Mfg. No. Description
1692796 Sovereign 18HP Hydro
1692943 Sovereign 18HP OHC Hydro w/ PS
1692845 918H, 18HP Hydro
1692949 918H, 18HP OHC Hydro w/ PS
1692849 2818H, 18HP Hydro
1692953 2818H, 18HP OHC Hydro w/ PS
1693407 Sovereign 18HP OHC Hydro w/ PS
1693411 918H, 18HP OHC Hydro w/ PS
18HP TRACTORS W/ POWER STEER
1693415 2818H, 18HP OHC Hydro w PS
Mfg. No. D
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MANUFACTURING, INC. 500 N Spring Street / PO Box 997 © Copyright 1998 Simplicity Manufacturing, Inc. Port Washington, WI 53074-0997 USA All Rights Reserved. Printed In USA.
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Table of Contents This Manual Covers The Following Products: GARDEN TRACTOR COMPONENTS Frame & Footrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 18HP OHV Hydro Tractors PAGES Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 1692796 Sovereign 18HP Hydro 2, 4, 6, 10, 14, 16, Manual Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 1692845 918H, 18HP Hydro 18, 20, 22, 24, 26, 1692849 2818H, 18HP Hydro 28, 30, 32, 34, 38, Power Ste
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Frame & Footrest Group A-SV43001A NOTE: Unless noted otherwise, use the standard hardware torque specification chart. The above parts group applies to the following Mfg. Nos.: 1692796 Sov 18HP Hydro 1692889 Sov 75 Anv 18HP OHC Hydro 1692955 2818H, 18HP OHC Hydro 1693411 918H, 18HP OHC Hydro PS 1692798 Sov 18HP Hydro PS 1692943 Sov 18HP OHC Hydro PS 1693144 Sov 18HP OHC Hydro-Exp 1693413 918H, 18HP OHC Hydro 1692845 918H, 18HP Hydro 1692945 Sov 18HP OHC Hydro 1693146 Sov 18HP OHC Hydro PS-Exp 169
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Frame & Footrest Group REF NO. PART NO. QTY. DESCRIPTION 1 1708757* 1 FRAME ASSEMBLY, w/Bushings 2 1921212 4 CAPSCREW, Hex Hd, 7/16-14 x 1-1/2 3 1918199 4 LOCKWASHER, 7/16 4 1917356 8 LOCKWASHER, 5/16 5 1921332 2 CAPSCREW, Hex Hd, 5/16-18 x 3/4 6 174662 1 BUSHING 7 1931333 4 CARRIAGE BOLT, 5/16-18 x 3/4 8 1920470 2 NUT, Speed, 5/16-18 9 1928734 2 SETSCREW, 5/16-18 x 1/4 10 1928721 1 SETSCREW, 5/16-18 x 1/2 11 1665908 1 FOOTREST, L.H. 12 1665909 1 FOOTREST, R.H. 13 1917372 6 NUT, Hex, Full, 5/16
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Front Axle Group A-SV43002A NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Torquenut {Ref 26} to 80-120 ft. lbs. Lock nut in place after torquing by holding nut {Ref 26} and tightening jam nut {Ref 27} to 33-50 ft. lbs. 1 2 25 9 27 26 24 3 21 5 8 6 4 8 7 Apply grease thru fitting 8 7 {Ref 10} to lubricate spindle bearing {2 places}. 9 8 7 19 23 10 Torque to 13-20 ft. lbs. 20 18 {2 places} 21 22 Apply grease thru fitting Torque to 11 {Ref 10} to lubr
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Front Axle Group REF NO. PART NO. QTY. DESCRIPTION 1 157499 1 ROD ASSEMBLY, Tie 2 1921210 2 CAPSCREW, Hex Hd, 3/8-16 x 1 3 1924940 2 WASHER, Plain, 3/8 4 154177 2 SPACER 5 157427 2 KEY, Square, 3/16 x 1-1/4 6 170998 1 ARM ASSEMBLY, Steering 7 1960114 3 WASHER 8 154289 4 BUSHING 9 921133 2 FITTING, Grease 10 1930651 2 LOCKNUT, Hex, 3/8-16 11 171774 1 SPINDLE ASSEMBLY, LH 12 171375 4 SPACER 13 170168 2 SEAL 14 154486 4 CONE, Bearing 15 1928691 2 SETSCREW, 5/16-18 x 5/16 16 8021010 2 COLLAR, Set 17
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Manual Steering Group A-SV43003A NOTE: Unless noted otherwise, use the standard hardware torque specification chart. ?O2@@@@@@@@@@@@@@@@@@6K? O2@@@@@@@@@@@@@@@@@@@@@@@@@@@@@0M?hfI4@@@@6K O@?2@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@6K? ?@@@@@@@@@@@@@@@0MJ@(M I4@@@@6X ?I4@@1 ?J@@ 7@H? @@@@ ?7@5J@@Y @@@@ @@@@@@@6K?7@@@@6K? @@@@ @@eI4@@@6X?@@fI’@@)K 3@?@ @@f?V4@@@@6X?@@g?I4@@@)K @@?@L? 1 @@h?I4@@@@6K?@@@6X?heI’@@)K@@he?I4@@@@6X? N@@?3@@?7@1? @@@@)Khe?V4@@@6K ?I’@@@6KheI4@@@6K? ?@@? ?@@? V4@@@@6KheI4@@@6K
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Manual Steering Group REF NO. PART NO. QTY. DESCRIPTION 1 1714097 1 CAP, Steering Wheel 2 1686651 1 WHEEL ASSEMBLY, Steering, 15” (Includes CAP, Ref. No. 1) 3 1960540 1 PIN, Spring, 5/16 x 2 4 154264 1 RING, Retaining 5 1714440 1 SHAFT, Steering 6 910224 1 KEY, Woodruff, #6 7 8021010 1 COLLAR, Set 8 1928734 1 SETSCREW, 5/16-18 x 1/4 9 1924940 2 WASHER, Bevel, 3/8 10 1916965 3 LOCKWASHER, 3/8 11 1921210 3 CAPSCREW, Hex Hd, 3/8-16 x 1 12 171000 1 PLATE, Steering 13 1920415 2 CAPSCREW, Hex Hd, 3/8-
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Power Steering Group NOTE: Unless noted otherwise, A-SV43004A use the standard hardware torque specification chart. 1 2 37 36 3 35 4 30 31 29 32 28 11 33 27 6 10 7 8 26 9 12 34 13 25 14 24 23 15 39 5 22 38 21 17 17 20 40 18 16 19 Steering Torque to Cylinder 16-24 ft. lbs. Seal Kit The above parts group applies to the following Mfg. Nos.: 1692798 Sov 18HP Hydro PS 1692949 918H, 18HP OHC Hydro PS 1693411 918H, 18HP OHC Hydro PS 1692847 918H, 18HP Hydro PS 1692953 2818H, 18HP OHC Hydro PS 169341
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Power Steering Group REF NO. PART NO. QTY. DESCRIPTION 1 1657017 1 CAP, Steering Wheel 2 1679046 1 NUT, Hex, 5/8-18 3 1676468 1 WHEEL ASSEMBLY, Steering 4 1676418 1 BOOT, Steering Stem 5 1716863 1 UP STOP, Axle 6 1960558 1 CAPSCREW, Hex Hd, M12 x 1.75 x 20mm 7 1909589 1 LOCKWASHER, Int. Tooth, 1/2 8 1716502 1 PLATE, Mounting Weldment 9 1673686 1 STEERING UNIT, Hydrostatic 10 1917356 4 LOCKWASHER, 5/16 11 1920263 4 NUT, Hex, 5/16-24 12 927103 1 RING, Retaining, 5/8 13 1960020 1 WASHER 14 1706655
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Engine, Exhaust & Drive Shaft Group — Kohler 18HP OHV A-SV43005A NOTE: Unless noted otherwise, use the standard hardware torque specification chart. The above parts group applies to the following Mfg. Nos.: 1692796 Sov 18HP Hydro 1692849 2818H 18HP Hydro 1692798 Sov 18HP Hydro PS 1692852 2818H, 18HP Hydro PS 1692845 918H, 18HP Hydro 1692847 918H, 18HP Hydro PS © Copyright 1998 Simplicity Manufacturing, Inc. All Rights Reserved. TP 400-2218-00-SV-SMA 10
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Engine, Exhaust & Drive Shaft Group — Kohler 18HP OHV REF NO. PART NO. QTY. DESCRIPTION 1 1708405 1 SHUT OFF VALVE 2 1708873 1 HEAT SHIELD ASSEMBLY 3 171252 1 CAP, Fuel Tank 4 172744 2 STRAP, Fuel Tank 5 171330 2 STRAP, Tank 6 1666275 1 TANK ASSEMBLY, Fuel (Includes Ref. 6, 7, 8, 9, 10) 7 1654930 1 BUSHING 8 1664460 1 FITTING 9 1960112 2 CLAMP, Hose 10 1717557 1 HOSE, Fuel, 15” 11 * 1 ENGINE, Kohler, 18 HP 12 1925125 1 WASHER, 15/32 13 1708764 1 CHOKE CONTROL 14 1708763 1 THROTTLE CONTROL 15 196
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Engine, Exhaust & Drive Shaft Group — Kohler 18HP OHC A-SV43006A NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 1 2 3 33 31 30 4 5 6 8 8 24 32 32 17 7 26 29 28 9 21 21 10 17 17 11 12 25 13 27 22 22 14 15 17 18 18 19 20 17 23 19 22 18 16 21 17 17 Throttle Control 19 18 Plate 19 20 19 18 21 21 Use this Hole 21 19 The above parts group applies to the following Mfg. Nos.: 1692889 Sov 75 Anv 18HP OHC Hydro 1692951 918H, 18HP OHC Hydro 1693146 Sov 18HP OHC Hydro PS
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Engine, Exhaust & Drive Shaft Group — Kohler 18HP OHC REF NO. PART NO. QTY. DESCRIPTION 1 172744 2 STRAP, Rubber, Fuel Tank 2 1666275 1 TANK ASSEMBLY, Fuel 3 171252 1 CAP, Fuel Tank 4 171330 2 STRAP, Tank 5 1654930 1 BUSHING 6 1664460 1 FITTING 7 1717551 1 HOSE, Fuel, 15” 8 1960112 2 CLAMP, Hose 9 1701011 1 TIE, Cable, 7.3” Lg. 10 1708405 1 VALVE, Shut Off 11 166137 1 HOSE, Hydraulic, 1/2 ID x 3/4 x 12 12 1678371 1 CONTROL, Throttle 13 1708764 1 CONTROL, Choke 14 1960475 1 SETSCREW, 3/8-24 x 3/8
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Clutch & Brake Group A-SV43007A NOTE: Unless noted otherwise, use the standard hardware torque specification chart. The above parts group applies to the following Mfg. Nos.: 1692796 Sov 18HP Hydro 1692889 Sov 75 Anv 18HP OHC Hydro 1692955 2818H, 18HP OHC Hydro 1693411 918H, 18HP OHC Hydro PS 1692798 Sov 18HP Hydro PS 1692943 Sov 18HP OHC Hydro PS 1693144 Sov 18HP OHC Hydro-Exp 1693413 918H, 18HP OHC Hydro 1692845 918H, 18HP Hydro 1692945 Sov 18HP OHC Hydro 1693146 Sov 18HP OHC Hydro PS-Exp 16934
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Clutch & Brake Group REF NO. PART NO. QTY. DESCRIPTION 1 1919439 1 LOCKNUT, Hex, Esna, 3/8-16 2 1916950 1 NUT, Hex, Full, 3/8-16 3 166119 1 GUIDE ASSEMBLY, Rod 4 1650651 1 ROD, Brake 5 1921971 1 CAPSCREW, Hex Hd, 3/8-16 x 1-3/4 6 1916965 1 LOCKWASHER, 3/8 7 1930650 1 LOCKNUT, Hex, Flange, 7/16-14 8 1679354 1 BAND ASSEMBLY, Brake (Incl. Ref. Nos. 9 & 10) 9 * 1 BAND, Brake (See Ref. No. 8) 10 * 1 LINING, Brake (See Ref. No. 8) 11 1668737 1 WASHER, Curved Spring 12 1960251 3 LOCKNUT, Hex, 3/8-16 13
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Clutch & Brake Control Group A-SV43008A NOTE: Unless noted otherwise, use the standard hardware torque specification chart. The above parts group applies to the following Mfg. Nos.: 1692796 Sov 18HP Hydro 1692889 Sov 75 Anv 18HP OHC Hydro 1692955 2818H, 18HP OHC Hydro 1693411 918H, 18HP OHC Hydro PS 1692798 Sov 18HP Hydro PS 1692943 Sov 18HP OHC Hydro PS 1693144 Sov 18HP OHC Hydro-Exp 1693413 918H, 18HP OHC Hydro 1692845 918H, 18HP Hydro 1692945 Sov 18HP OHC Hydro 1693146 Sov 18HP OHC Hydro PS-E
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Clutch & Brake Control Group REF NO. PART NO. QTY. DESCRIPTION 1 1917372 3 NUT, Hex, Full, 5/16-18 2 1928721 1 SETSCREW, 5/16-18 x 1/2 3 166173 1 PULLEY, Drive, Transmission 4 1650502 1 V-BELT, Drive, Transmission 5 166122 1 GUARD ASSEMBLY 6 1650531 1 ROD, Clutch 7 121037 2 SPRING 8 1923362 2 LOCKNUT, Hex, 5/16-18 9 1923358 1 LOCKNUT, Hex, 1/4-20 10 171994 1 END, Rod 11 172108 1 LEVER, Parking Brake 12 1926771 1 CAPSCREW, Hex Hd, 1/4-20 x 1 13 1668419 1 ROD ASSEMBLY 14 1919381 1 WASHER, 5/16 15
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Hydrostatic Pump Group A-SV43009A NOTE: Unless noted otherwise, use the standard hardware torque specification chart. See Pages 56-59 for Service Parts The above parts group applies to the following Mfg. Nos.: 1692796 Sov 18HP Hydro 1692889 Sov 75 Anv 18HP OHC Hydro 1692955 2818H, 18HP OHC Hydro 1693411 918H, 18HP OHC Hydro PS 1692798 Sov 18HP Hydro PS 1692943 Sov 18HP OHC Hydro PS 1693144 Sov 18HP OHC Hydro-Exp 1693413 918H, 18HP OHC Hydro 1692845 918H, 18HP Hydro 1692945 Sov 18HP OHC Hydro 169
