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Snapper YT Series Parts Manual

Lawn tractors & mower decks
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See also: Service Manual
Lawn Tractors & Mower Decks
16HP Tractors
Mfg. No.
Description
1694368
YT1644, 16HP Hydro
18HP Tractors
Mfg. No.
Description
1694369
YT1850, 18HP Hydro
Mower Decks
Mfg. No.
Description
1694371
44" Mower Deck
1694372
50" Mower Deck
YT Series

Parts Manual

TP 400-3821-00-CQ-N
02/2003
Rev.

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Summary of Contents for Snapper YT Series

  • Page 1: Parts Manual

    YT Series Lawn Tractors & Mower Decks 16HP Tractors Mfg. No. Description 1694368 YT1644, 16HP Hydro 18HP Tractors Mfg. No. Description 1694369 YT1850, 18HP Hydro Mower Decks Mfg. No. Description 1694371 44" Mower Deck 1694372 50" Mower Deck Parts Manual 02/2003 Rev.

  • Page 3: Table Of Contents

    TRACTOR / MOWER DECK COMPONENTS Frame Group ... Steering Group - Manual Steering ... Engine & Electric Clutch Group - 16HP Briggs & Stratton, Vanguard ... Transmission Group ... 10 Transmission SERVICE PARTS - Tuff Torq K-66L ... 14 Lift Group - Manual Lift ... 20 Controls Group ...

  • Page 4: Frame Group

    Frame Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Torque to 150 ft. lbs. (202 Nm) The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. Torque to 150 ft.
  • Page 5 Frame Group REF NO. PART NO. QTY. 1721748 1923683 1960541 1723528 1928352 1930644 1722602 1923114 1921210 1721572 1930645 1922755 1960103 1722541 1919262 1702779 1708236 1931350 1722626 1611705 1721682 1930650 1722200 1931352 1721752 1927531 1721918 960645 1960035 1933260 1721805 1723502 1960086 960646 1722212 1919394...
  • Page 6 Frame Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Torque to 150 ft. lbs. (202 Nm) The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. Torque to 150 ft.
  • Page 7 Frame Group REF NO. PART NO. QTY. 1725112 930671 1724264 1704314 Footnotes The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. DESCRIPTION HUB & ARM ASSEMBLY KEY, WOodruff SPINDLE, LH FITTING, Lube...

  • Page 8: Steering Group - Manual Steering

    Steering Group - Manual Steering NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Torque to 36-44 ft. lbs. or 48-60 Nm Bearing mounts below frame. Slide pinion on steering shaft into gear before tightening nuts. The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 ©...
  • Page 9 Steering Group - Manual Steering REF NO. PART NO. QTY. 1722318 1725024 1960540 1722749 1960114 176440 928372 1721736 1960518 1931317 1722385 1960032 1930645 1664847 1721626 1611710 1722459 1722461 1931211 1933260 1919314 Footnotes The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 ©...

  • Page 10: Engine & Electric Clutch Group - 16Hp Briggs & Stratton, Vanguard

    Engine & Electric Clutch Group - 16HP Briggs & Stratton, Vanguard NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Engine manufactures gasket & hardware. Torque to 18 ft. lbs. (25 Nm) Note: Orentation of All Keys The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 ©...
  • Page 11 Engine & Electric Clutch Group - 16HP Briggs & Stratton, Vanguard REF NO. PART NO. QTY. 1723165 1719847 1722388 1925003 1721950 1701011 960112 1718678 1722392 1929000 1722288 932747 1708264 1918199 1960648 1717664 1720463 930598 920427 1722414 1960368 1960295 1935255 1722389 934683 1722390 1924856...

  • Page 12: Transmission Group

    Transmission Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Torque nut to 29 - 34 ft. lbs. (39 - 46 Nm) Spring to be compressed to 2-1/2 inches with brake locked. The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 ©...
  • Page 13 Transmission Group REF NO. PART NO. QTY. 1920397 1960654 1722174 1722173 1960636 1704351 1928352 1960637 1931350 1919438 1721728 1676148 1924940 1922130 1722460 1722151 1925125 1721360 1716289 1669105 1723126 1721622 1921210 1722903 1919326 1923141 1960590 1722152 1921333 1722383 1721952 1918447 1721424 1722684 8191045 1919439...
  • Page 14 Transmission Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Torque nut to 29 - 34 ft. lbs. (39 - 46 Nm) Spring to be compressed to 2-1/2 inches with brake locked. The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 ©...
  • Page 15 Transmission Group REF NO. PART NO. QTY. 1721392 1722194 1719968 1719233 1933958 1931335 1721593 1921719 Footnotes The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. DESCRIPTION V-BELT PULLEY &...

  • Page 16: Transmission Service Parts - Tuff Torq K-66L

    Transmission SERVICE PARTS - Tuff Torq K-66L NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 6 89 74 84 The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc.
  • Page 17 Transmission SERVICE PARTS - Tuff Torq K-66L REF NO. PART NO. QTY. 1718076 1724314 1708651 1708650 1708672 1718083 1724699 1722223 1724696 1720789 1724692 1724693 1718264 1724695 1724746 1724745 1724740 1724742 1724743 1707890 1724744 1724708 1724709 1721181 1721966 1707912 1724697 1718070 1724698 1718084 1718079...
  • Page 18 Transmission SERVICE PARTS - Tuff Torq K-66L NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 6 89 74 84 The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc.
  • Page 19 Transmission SERVICE PARTS - Tuff Torq K-66L REF NO. PART NO. QTY. 1724715 1724717 1724716 1720761 1724729 1724730 1724733 1724731 1724719 1720860 1720858 1720859 1724720 1724737 1724736 1724738 1718262 1724718 1718065 1720761 1724734 1724739 1724732 1724735 1720788 1724741 1720796 1720788 1718226 1707789 1720807...
  • Page 20 Transmission SERVICE PARTS - Tuff Torq K-66L NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 6 89 74 84 The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc.
  • Page 21 Transmission SERVICE PARTS - Tuff Torq K-66L REF NO. PART NO. QTY. 1718239 1724703 1718089 1718061 1708684 1724711 1718097 1707879 1708689 1708692 1724712 1718120 1724710 1720838 1708691 1720418 1720421 1724727 1724728 1708690 1724722 1718100 1724721 1724691 1724694 1724713 Footnotes The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 ©...

  • Page 22: Lift Group - Manual Lift

    Lift Group - Manual Lift 985894 NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Torque to 23-28 ft. lbs. (31-38 Nm) Rotate clockwise as far as possible before tighting. Assemble into lower hole of Ref. Item 20. The above parts group applies to the following Mfg.
  • Page 23 Lift Group - Manual Lift REF NO. PART NO. QTY. 1927557 1931333 1722291 1723124 1960518 1723321 1721581 1926149 1721712 1960636 1722482 1722112 156302 1723163 1721652 1919381 1921160 1722819 1960033 1721654 1935255 1675232 1723499 1722357 Footnotes The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 ©...

  • Page 24: Controls Group

    Controls Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. TP 400-3821-00-CQ-N 985882...
  • Page 25 Controls Group REF NO. PART NO. QTY. 1721353 1721891 1930591 1919326 1721476 1723242 1931353 1663114 921133 1723278 1722460 1724036 1960020 1704420 1721134 1924940 1919439 1721133 1723237 1722513 1722084 1931320 1918447 1721354 1664847 1919438 1919381 1927557 1722535 1721577 1931334 1921333 1722083 1923683 1722070 1960636...
  • Page 26 Controls Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. TP 400-3821-00-CQ-N 985882...
  • Page 27 Controls Group REF NO. PART NO. QTY. 1686612 1721995 Footnotes The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. DESCRIPTION CAM, Roller SPRING, Extension TP 400-3821-00-CQ-N...

  • Page 28: Cruise Control Group

    Cruise Control Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Control Arm from transmission group. Brake arm at idler pivot. The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 ©...
  • Page 29 Cruise Control Group REF NO. PART NO. QTY. 1722314 1722293 1722303 1920397 1722003 1960103 1931333 1924361 1709043 1931342 1960273 1722460 1722117 1722481 159106 1960636 1960001 1717050 1722080 1919326 1919381 1919438 1677746 1918447 Footnotes The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 ©...

  • Page 30: Electrical Group

    Electrical Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. HOOD MOUNTED UNDER HOOD Tie main harness and starter wire up. Wires should not hang below side panel with hood closed. To Electric Clutch To Charge Circuit To Fuel Shut-Off To Oil...
  • Page 31 Electrical Group REF NO. PART NO. QTY. 1721810 1677371 1723451 1722669 1722887 1925003 1665238 1665237 1722611 1722228 1920263 920426 1722739 1686734 1717163 1717550 1717549 1960547 101025 1722715 1701011 1716951 1713535 1721830 1603618 1677296 916622 916964 921319 923341 1713163 1685215 1722009 1930531 1917365 1722309...
  • Page 32 Electrical Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. HOOD MOUNTED UNDER HOOD Tie main harness and starter wire up. Wires should not hang below side panel with hood closed. To Electric Clutch To Charge Circuit To Fuel Shut-Off To Oil...
  • Page 33 Electrical Group REF NO. PART NO. QTY. 1717050 1722716 1685303 Footnotes The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. DESCRIPTION SWITCH, Cruise Control, Grey, NO HARNESS, Wiring Lower GASKET TP 400-3821-00-CQ-N...

  • Page 34: Hood, Grill & Dash Group

    Hood, Grill & Dash Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. See Electrical Group The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. 985897 TP 400-3821-00-CQ-N...
  • Page 35 Hood, Grill & Dash Group REF NO. PART NO. QTY. 1721804 41721804 1722110 41722110 1960295 1960392 1722107 1723123 1933896 1930641 1721803 41721803 1721808 1721802 41721802 1721810 1721809 1722391 Footnotes The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 ©...

  • Page 36: Seat & Seat Deck Group

    Seat & Seat Deck Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. See Electrical Group 985908...
  • Page 37 Seat & Seat Deck Group REF NO. PART NO. QTY. 1722129 1722307 1722306 1722128 172434 1709256 1714263 1919438 1717051 1930591 1931339 1931350 1722356 1935255 1930601 1722309 1722109 1921319 1916964 1921959 1931277 1715917 1722340 1654930 1722432 1960636 1722106 41722106 1722108 1722105 41722105 1663752 1930645...

  • Page 38: Wheels & Tires Group

    Wheels & Tires Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Front Wheels Rear Wheels The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. W985914 Use as required.
  • Page 39 Wheels & Tires Group REF NO. PART NO. QTY. 1722305 1722833 164247 1717056 1722834 172353 1919394 1722726 932577 1722676 105337 960200 1723112 1721400 1722766 1722830 157638 1722831 934712 177725 Footnotes The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 ©...

  • Page 40: Decals Group - Brand & Model

    Decals Group - Brand & Model B986279 NOTE: Unless noted otherwise, use the standard hardware torque specification chart. The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 TP 400-3821-00-CQ-N © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved.
  • Page 41 The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. DESCRIPTION DECAL, Snapper DECAL, Hood Stripe, Snapper, LH DECAL, Hood Stripe, Snapper, RH DECAL, YT1644 DECAL, YT1850 TP 400-3821-00-CQ-N...

  • Page 42: Decals Group - Safety & Common

    Decals Group - Safety & Common NOTE: Unless noted otherwise, use the standard hardware torque specification chart. The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. DANGER OPERATING ON SLOPES CAN BE DANGEROUS...
  • Page 43 Decals Group - Safety & Common REF NO. PART NO. QTY. 1722806 1718025 1722814 1723175 1723143 1723410 1720454 1720456 1723296 1708927 1723160 1704276 1722771 1722789 1722790 1722791 1704277 1721197 Footnotes The above parts group applies to the following Mfg. Nos.: 1694368 - YT1644 1694369 - YT1850 ©...

  • Page 44: 44" & 50" Mower Deck - Clutch & Support

    44" & 50" Mower Deck - Clutch & Support NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Engine Pulley Arbor Drive Pulley Arbor Drive Idler Pulley Pulley Insert Must Face Out The above parts group applies to the following Mfg. Nos.: 1694371 - 44"...
  • Page 45 44" & 50" Mower Deck - Clutch & Support REF NO. PART NO. QTY. 1601672 1707740 1703836 1721532 1665835 1916950 1916965 1677135 1924940 1666294 1685150 1960339 1676148 1715435 1674669 912808 1704658 1960315 1718561 1924356 1931352 1656936 1923938 1921969 157081 960641 156302 1707432 1715759...

  • Page 46: 44" & 50" Mower Decks - Housing, Arbors & Blades

    44" & 50" Mower Decks - Housing, Arbors & Blades NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Apply gasket former to this surface if foam gasket is not used. Fill arbors with multipurpose grease after gasket former has cured. The above parts group applies to the following Mfg.
  • Page 47 44" & 50" Mower Decks - Housing, Arbors & Blades REF NO. PART NO. QTY. 1714419 1713675 1713161 1713158 1713098 1713533 1655729 108202 1715724 1715723 1705897 1707335 1713338 1704314 1720560 1664847 1924856 1931277 1713619 1713612 1713196 1704100 1708229 1713089 1656916 923471 1713195 1685411...
  • Page 48 44" & 50" Mower Decks - Housing, Arbors & Blades NOTE: Unless noted otherwise, use the standard hardware torque specification chart. Apply gasket former to this surface if foam gasket is not used. Fill arbors with multipurpose grease after gasket former has cured. The above parts group applies to the following Mfg.
  • Page 49 44" & 50" Mower Decks - Housing, Arbors & Blades REF NO. PART NO. QTY. 1916622 1706709 1705449 1713197 Footnotes The above parts group applies to the following Mfg. Nos.: 1694371 - 44" Mower 1694372 - 50" Mower © Copyright 2003 Simplicity Manufacturing, Inc.

  • Page 50: 44" Mower Deck - Height Adjustment & Roller Bar

    44" Mower Deck - Height Adjustment & Roller Bar NOTE: Unless noted otherwise, use the standard hardware torque specification chart. GREASE 43 31 The above parts group applies to the following Mfg. Nos.: 1694371 - 44" Mower © Copyright 2003 Simplicity Manufacturing, Inc.
  • Page 51 44" Mower Deck - Height Adjustment & Roller Bar REF NO. PART NO. QTY. 1685443 1704082 960641 1677507 1924361 172622 1602946 1722036 1960520 1924366 1668513 1704074 1930644 1664847 1924940 1722747 1665374 1931352 1723407 1930570 1919381 1707514 1919438 1704093 1706644 1922606 1722748 1960020 1960373...
  • Page 52 44" Mower Deck - Height Adjustment & Roller Bar NOTE: Unless noted otherwise, use the standard hardware torque specification chart. GREASE 43 31 The above parts group applies to the following Mfg. Nos.: 1694371 - 44" Mower © Copyright 2003 Simplicity Manufacturing, Inc.
  • Page 53 44" Mower Deck - Height Adjustment & Roller Bar REF NO. PART NO. QTY. 1917372 1917356 1704116 1704083 1921977 1704087 1719901 1714084 1960093 Footnotes The above parts group applies to the following Mfg. Nos.: 1694371 - 44" Mower © Copyright 2003 Simplicity Manufacturing, Inc.

  • Page 54: 50" Mower Deck - Height Adjustment & Roller Bar

    50" Mower Deck - Height Adjustment & Roller Bar NOTE: Unless noted otherwise, use the standard hardware torque specification chart. GREASE 43 27 The above parts group applies to the following Mfg. Nos.: 1694372 - 50" Mower © Copyright 2003 Simplicity Manufacturing, Inc.
  • Page 55 50" Mower Deck - Height Adjustment & Roller Bar REF NO. PART NO. QTY. 1686687 1704082 960641 1677507 1924361 172622 1924366 1709195 1722036 1960520 1668513 1704074 1930644 1665374 1664847 1931352 1718828 1930570 1919381 1708088 1919438 1722995 1706644 1924940 1922606 1704080 1931202 1704114 1704097...
  • Page 56 50" Mower Deck - Height Adjustment & Roller Bar NOTE: Unless noted otherwise, use the standard hardware torque specification chart. GREASE 43 27 The above parts group applies to the following Mfg. Nos.: 1694372 - 50" Mower © Copyright 2003 Simplicity Manufacturing, Inc.
  • Page 57 50" Mower Deck - Height Adjustment & Roller Bar REF NO. PART NO. QTY. 1921977 1704087 1719901 1714084 1960093 Footnotes The above parts group applies to the following Mfg. Nos.: 1694372 - 50" Mower © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. DESCRIPTION CAPSCREW, Hex Head, 5/16-18 x 1-1/4 TRUNNION, Threaded...

  • Page 59: Torque Specification Chart

    Hardware Identification & Torque Specifications Common Hardware Types Hex Head Capscrew Carriage Bolt Standard Hardware Sizing When a washer or nut is identified as 1/2”, this is the Nominal size , meaning the inside diameter is 1/2 inch; if a second number is present it represent the threads per inch When bolt or capscrew is identified as 1/2 - 16 x 2”, this means the Nominal size , or body diameter is 1/2 inch;...
  • Page 60 MANUFACTURING, INC. 500 N. Spring Street / PO Box 997 Port Washington, WI 53074-0997 USA www.simplicitymfg.com © Copyright 2003 Simplicity Manufacturing, Inc. All Rights Reserved. Printed In USA.

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