Agri-Fab LST42D Owner's Manual
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Agri-Fab LST42D Owner's Manual

Agri-Fab LST42D Owner's Manual

42" snow thrower
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OWNERS
MANUAL
Model No.
LST42D
42" SNOW THROWER
• Safety
CAUTION:
Read Rules for
• Assembly
Safe Operation
• Operation
and Instructions
• Maintenance
Carefully
• Parts
the fastest way to purchase parts www.speedepart.com
PRINTED IN U.S.A.
FORM NO. 42320 (06/16/11)

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Summary of Contents for Agri-Fab LST42D

  • Page 1 ™ OWNERS MANUAL Model No. LST42D 42" SNOW THROWER • Safety CAUTION: Read Rules for • Assembly Safe Operation • Operation and Instructions • Maintenance Carefully • Parts the fastest way to purchase parts www.speedepart.com PRINTED IN U.S.A. FORM NO. 42320 (06/16/11)

  • Page 2: Table Of Contents

    TABLE OF CONTENTS ACCESSORIES ..................................2 SAFETY RULES ................................... 3 FULL SIZE HARDWARE CHART ............................4 CARTON CONTENTS ................................6 ASSEMBLY ................................... 7 OPERATION ..................................25 MAINTENANCE ................................. 26 SERVICE AND ADJUSTMENTS ............................27 STORAGE ..................................28 TROUBLESHOOTING ................................ 28 REPAIR PARTS ILLUSTRATION ..........................

  • Page 3: Safety Rules

    SAFETY Read and understand the operating instructions before using. Keep the area of operation clear of all persons, especially small children and pets. Thoroughly inspect the area to be cleared and remove all door mats, sleds, boards, wires and other foreign objects. Use extreme caution when operating on or crossing gravel surfaces. Never direct discharge at bystanders or allow anyone in front of the snow thrower. 184045 199682 199683 Do not place hands near rotating parts. Keep clear of the Do not place feet near rotating parts. discharge opening at all times. • Never allow children to operate the equipment. • Take all possible precautions when leaving the unit • Never allow adults to operate the equipment without unattended. Disengage the attachment clutch lever or proper instruction. switch, lower the snow thrower, shift into neutral, set • Disengage all clutches and shift into neutral before the parking brake, stop the engine and remove the key.

  • Page 4: Full Size Hardware Chart

    HARDWARE PACKAGE CONTENTS SHOWN ACTUAL SIZE 43182 47630 43350 43661 47631 43084 43080 48106 44326 43682 47598 46938 44215 46584 43003 43088 43081 47572 47810 49933 44695 710-0890A 47605, 43070 R19172410 43082 NOT SHOWN ACTUAL SIZE 46959 731-0851A 711-0198 1643-60 47134 43343 43055...
  • Page 5 REF. QTY. DESCRIPTION REF. QTY. DESCRIPTION Hex Bolt, 3/8" x 3-1/4" Bowed Washer Hex Bolt, 5/16" x 1-3/4" Flanged Nut, 1/4" Hex Bolt, 5/16" x 3/4" Flanged Nut, 5/16" Hex Bolt, 1/4" x 1" Flanged Nut, 3/8" Hex Bolt, 3/8" x 1" (Thread Forming) Nylock Nut, 5/16" (2 spare parts) Hex Bolt, 5/16" x 3/4" (Thread Forming) Hex Lock Nut, 3/8"...

  • Page 6: Carton Contents

    CARTON CONTENTS Suspension Arms (2) 11. L.H. Hanger Bracket (Outside Mounting) Left Hand Side Plate 12. R.H. Hanger Bracket (Outside Mounting) 13. Clutch Idler Assembly Right Hand Side Plate V-Belt, Drive (Short) #46989 Anti-rotation Bracket Engagement Rod (Not used on some models) V-Belt, Drive (Long) #48138 Engine Pulley Keeper (Not used on some models) 16. V-Belt, Auger (Attached to Housing Assembly) 17. Chute and Control Cable Assembly Chute Crank Rod Assembly 18. Housing Assembly Support Tube, Crank Rod Lift Handle and Cable 19. L.H. Hanger Bracket (Inside Mounting) 10. Cable Bracket 20. R.H. Hanger Bracket (Inside Mounting) Hardware Package (Stored inside Plastic Keg) 46948...

  • Page 7: Assembly

    ASSEMBLY TOOLS REQUIRED FOR ASSEMBLY IDENTIFY YOU TRACTOR (2) 7/16" Wrenches STEP 1: (SEE FIGURE 1) (2) 1/2" Wrenches • Look under the front of your tractor. If there is a single (2) 9/16" Wrenches mower deck suspension bracket located underneath (2) 3/4" Wrenches the middle of the front axle, continue on to step (1) Screw Driver 2. If your tractor does not have a mower deck (1) Knife suspension bracket underneath the middle of the front axle, skip to step 21 on page 13 for tractors...
  • Page 8 INSTALL SIDE PLATES INSTALL HANGER BRACKETS AND SHOULDER BOLTS TO OUTSIDE OF FRAME STEP 3: (SEE FIGURE 3) • Fasten the R.H. Side Plate (bend facing out) to the STEP 5: (SEE FIGURE 5) front three holes in the tractor frame using three 3/8" • Remove the bolt, if present, in the hole directly behind x 1" carriage bolts (G), three 1/2" washers (R) (see the brake rod on the left side of the tractor frame. note) and three 3/8" flange nuts (X). For the rear hole, • Attach the L.H. Hanger Bracket (tube facing out) to the use a 5/16" x 1" carriage bolt (J), a 1/2" washer (R) hole using a 5/16" x 3/4" self threading bolt (F). and a 5/16" nylock nut (Y). Place the 1/2" washers (R) • Install a round head shoulder bolt (M) into the hole between the tractor frame and the side plate. Repeat that is 9-1/2" to the rear of the bolt you just installed.
  • Page 9 THIS SECTION IS FOR TRACTORS WITH A STEP 9: (SEE FIGURE 9) • Attach the cable bracket to the slot shown in the MANUAL ATTACHMENT CLUTCH clutch/idler assembly using a 5/16" x 3/4" carriage If your tractor has an electric attachment clutch go to bolt (K) and a 5/16" nylock nut (Y). Place the bolt in step 14 on page 11. the front hole of the bracket and in the end of the slot closest to the pulley. Do not tighten yet. STEP 7: (SEE FIGURE 7) • Attach the pulley (long end of hub facing down) and 5/16"...
  • Page 10 STEP 11: (SEE FIGURE 11) 1/8" HAIRPIN PIVOT LOCK PIN (GG) NYLON TIE (II) • Find the cable clip that is attached to the left side COTTER (EE) (use this hole) of the tractor frame underneath the footrest. Open the clip and remove the mower clutch cable. Do not L.H. HANGER SHOULDER BRACKET BOLT (M) remove the clip from the tractor frame. The cable reattaches to the clip when using the mower deck. • Move the attachment clutch lever on the dash panel to the disengaged position. • Place the clutch/idler assembly on the floor on the left side of the tractor. • Attach the tractor's mower clutch cable to the cable MOWER bracket on the clutch/idler assembly. Secure the cable...
  • Page 11 THIS SECTION IS FOR TRACTORS WITH AN STEP 16: (SEE FIGURE 16) • Hook one end of the spring supplied in the parts bag ELECTRIC ATTACHMENT CLUTCH through the end link of the tensioning chain. • With the clutch/idler assembly turned upside down, STEP 14: (SEE FIGURE 14) hook the other end of the spring onto the end of the • Attach the two suspension arms to the rear of the bolt and nut which secure the idler pulley to the upper clutch/idler assembly using two 5/16" x 3/4" hex bolts idler arm. Assemble a 3/8" hex lock nut (Z) onto the (C) and 5/16" nylock nuts (Y) for each arm. Place the bolt and nut, leaving enough gap between the nuts for arms on the outside of the frame with the notches to the spring to pivot freely. the rear. • Attach a 3/32" hairpin cotter (FF) to the chain, placing it in the fifth link from the spring.
  • Page 12 STEP 18: (SEE FIGURE 17) STEP 20: (SEE FIGURE 19) • Turn the clutch/idler assembly right side up. • Assemble the drive belt onto the engine pulley first • Slightly loosen the hex bolt next to the flat idler pulley. and then onto the large pulley on top of the clutch/ Install the drive belt down between the hex bolt and the idler assembly. Place the belt to the inside of the idler flat idler pulley with the flat side of the belt against the pulley and the belt keeper bolt located beside the pulley. Retighten the hex bolt. large pulley. • Loop the belt around the large v-pulley, placing it • Place tension on the belt by pulling the left side between the v-pulley and the hex bolt next to the pulley. tensioning chain (JJ) out as far as the 3/32" hairpin cotter in the chain will allow.
  • Page 13 INSTRUCTIONS FOR TRACTORS WITH DUAL STEP 23: (SEE FIGURE 22) FRONT DECK SUSPENSION BRACKETS • Remove any bolts found in the holes shown. REMOVE BOLTS FASTEN SIDE PLATES TO TRACTOR IF PRESENT f your tractor resembles figure 20, start with step 21. If your tractor resembles figure 22, start with step 23. STEP 21: (SEE FIGURE 20) • Remove bolts from front three holes shown. • If a bolt is present in the fourth hole, replace it with a 5/16" x 1" carriage bolt (J) without a nut. The bracket FRONT SUSPENSION fastened to inside of frame must remain in place. BRACKET REPLACE BOLT FIGURE 22...
  • Page 14 INSTALLING HANGER BRACKETS INSTALLING SHOULDER BOLTS For better clearance, lower the tractor's suspension arms using the attachment lift lever. STEP 27: (SEE FIGURE 27) • Remove the bolt, washer and nut which fasten the sway bar bracket to the L.H. side of the tractor frame. STEP 26: (SEE FIGURE 25 or 26) Replace with a shoulder bolt (L) and a 3/8" flanged On Tractors With Foot Rest Brackets nut (X). Bolt goes on inside of frame. • Remove the bolt and nut that fasten the L.H. and R.H. foot rest brackets to the frame. • Attach the L.H. Hanger Bracket (marked "L") to the inside of the tractor frame using two 3/8" x 1" carriage bolts (G) and 3/8" flanged nuts (X). Bolt heads go on inside of tractor frame. Repeat for the R.H. side. BOLT REMOVED FROM THIS HOLE 3/8"...
  • Page 15 INSTALLING CLUTCH/IDLER ASSEMBLY This section covers the installation of the Clutch/Idler assembly to tractors with attachment clutches that are either rod operated (p. 15), cable operated (p. 17) or electric (p. 19). Use the appropriate instructions for your tractor. ROD OPERATED MANUAL ATTACHMENT CLUTCH 5/16" NYLOCK NUT (Y) STEP 29: (SEE FIGURE 29) • Move the attachment clutch lever on the dash panel to 5/16" WASHER (Q) the disengaged (down) position.
  • Page 16 STEP 32: (SEE FIGURE 32) NEW ENGINE PULLEY KEEPER WITH • Be sure to lift up the front end of the engagement rod ORIGINAL BOLT, NUT AND WASHER as shown when performing the next operation. You can temporarily support the rod using a rubber band tied to the engine pulley keeper. • Attach the clutch/idler assembly to the tractor frame TRUNNION (CC) as follows. Hook the assembly's notched arms onto the two shoulder bolts you assembled to the inside STOP BOLT of the tractor frame. Lift the front of the assembly and attach it to the R.H. and L.H. hanger brackets using two pivot lock pins (GG) and 1/8" hairpin cotters (EE). IDLER ARM PIVOT LOCK PIN (GG) 3/8" THIN (use second hole) WASHER (S) ENGAGEMENT 5/64"...
  • Page 17 CABLE OPERATED MANUAL ATTACHMENT CLUTCH • Slightly loosen the hex bolt next to the flat idler pulley. Install the drive belt down between the hex bolt and the STEP 35: (SEE FIGURE 35) flat idler pulley with the flat side of the belt against the • Attach the two suspension arms to the rear of the pulley. Retighten the hex bolt. clutch/idler assembly using two 5/16" x 3/4" hex bolts • Loop the belt around the large v-pulley, placing it (C), 5/16" washer (Q) and 5/16" nylock nuts (Y) for between the v-pulley and the hex bolt next to the pulley. each arm. Place the arms on the outside of the frame with the notches to the rear. HEX BOLTS FLAT IDLER • Insert a tensioning chain through the hole shown and PULLEY attach the end link to the spring on the lower idler arm. (#46989) DRIVE BELT FIGURE 37 5/16"...
  • Page 18 STEP 39: (SEE FIGURE 39) STEP 40: (SEE FIGURE 40) • Remove the engine pulley keeper from the side of • Assemble the short "V" belt onto the engine pulley the tractor frame by removing the washer and nut and then onto the large pulley on top of the clutch/idler that secure the keeper. Attach the new pulley keeper assembly. The belt must be placed to the inside of the supplied with the snow thrower, reusing the original engine pulley keeper, the idler pulley and the keeper bolt, washer and nut. bolt located beside the large pulley. NOTE: Some tractors may already be equipped with a IMPORTANT: Do Not assemble the "V" belt around the pulley keeper that is identical to the new one supplied.
  • Page 19 ELECTRIC ATTACHMENT CLUTCHES STEP 43: (SEE FIGURE 43) • Hook the spring from the parts bag through the end of the tensioning chain. STEP 41: (SEE FIGURE 41) • Hook the other end of the spring onto the bottom of • Attach the two suspension arms to the rear of the the bolt and nut which secure the idler pulley to the clutch/idler assembly using two 5/16" x 3/4" hex bolts upper idler arm. Hold the bolt head and assemble a (C), 5/16" washer (Q) and 5/16" nylock nuts (Y) for 3/8" hex lock nut (Z) onto the bolt, leaving enough each arm. Place the arms on the outside of the frame space for the spring to pivot freely between the two with the notches to the rear. nuts. • Insert a tensioning chain through the hole shown and • Attach a 3/32" hairpin cotter (FF) to the chain, placing attach the end link to the spring on the lower idler arm.
  • Page 20 STEP 45: (SEE FIGURE 44) STEP 47: (SEE FIGURE 46) • Turn the clutch/idler assembly right side up. • Assemble the drive belt onto the engine pulley and • Slightly loosen the hex bolt next to the flat idler pulley. then onto the large pulley on top of the clutch/idler Install the drive belt down between the hex bolt and the assembly. The belt must be placed to the inside of flat idler pulley with the flat side of the belt against the the idler pulley and the keeper bolt located beside the pulley. Retighten the hex bolt. large pulley. • Loop the belt around the large v-pulley, placing it • Place tension on the belt by pulling the left side between the v-pulley and the hex bolt next to the pulley. tensioning chain out as far as the 3/32" hairpin cotter Place the belt to the inside of the other flat idler pulley.
  • Page 21 ASSEMBLY OF THE SNOW THROWER STEP 50: (SEE FIGURE 49) • Tilt the snow thrower back down to the ground. STEP 48: (SEE FIGURE 47) • Remove the nylon tie which fastens the auger • Place the lift handle into the lift bracket on the right side drive belt to the discharge housing, leaving the belt of the snow thrower. Fasten the handle to the bracket assembled around the pulleys. using two 5/16" x 1-3/4" hex bolts (B) and 5/16" Nylock • Remove the nylon tie which fastens the chute crank nuts (Y). rod to the crank rod support tube. • Assemble the crank rod support tube to the bracket on the left side of the discharge housing using two 5/16" x 1-1/4" carriage bolts (I), and 5/16" Nylock nuts (Y).
  • Page 22 STEP 52: (SEE FIGURE 51) STEP 53: (SEE FIGURE 52) • Attach the chute crank rod assembly brackets to • Coat the top of the ring around the discharge opening the plastic bracket on the left side of the discharge with general purpose grease. housing. Align the chute crank bracket beneath the • Place the discharge chute (facing forward) onto the rod support bracket and assemble both to the plastic ring. Place the anti-rotation bracket on top of the chute bracket using two 5/16" x 1" carriage bolts (J), 5/16" flange, aligning it with the holes on the right hand side washers (Q) and 5/16" Nylock nuts (Y). Do not of the flange. Attach the three chute keepers (BB) tighten yet. (right side up as shown) to the bottom of the flange using six 1/4" x 1" hex bolts (D), 1/4" flat washers (P) and 1/4" flanged lock nuts (V). Tighten carefully so 5/16" x 1" CHUTE CRANK that the nuts are snug but do not dig into the plastic CARRIAGE BOLT (J) BRACKET...
  • Page 23 ATTACHING SNOW THROWER TO TRACTOR INSTALLING THE AUGER BELT STEP 57: (SEE FIGURE 56) STEP 55: (SEE FIGURE 54) • Remove the attachment pin, if installed. • Place the snow thrower on a flat, level surface. • Push the lift handle down to increase slack in the belt. • Remove the Attachment Pin from the snow thrower. • Swing the lower idler arm over to the left side. • Extend the auger belt out behind the snow thrower, • Place the auger belt around the rear pulley and keeping the belt assembled to the snow thrower pulleys. between the two pulleys on the idler arm. The "V" • Roll the tractor up behind the snow thrower, centering side of the belt must be seated in the grooves of the it between the snow thrower's mounting plates. V-pulleys. • Raise the rear of the snow thrower by lifting up on the lift handle until the notches in the mounting plates CLUTCH/IDLER ASSEMBLY...
  • Page 24 INSTALLING THE ATTACHMENT PIN ATTACH REFLECTORS TO REAR FENDER STEP 59: (SEE FIGURE 58) STEP 58: (REFER BACK TO FIGURE 54 ON PAGE 23) • If your tractor is not equipped with rear reflectors, • Lift the front of the snow blower to align the holes in assemble the supplied rear reflectors (KK) to the rear the mounting plates and the side plates. From the left fender. Place the reflectors as close to the bottom of side of the tractor insert the attachment pin through the fender and as far apart as the shape of the fender the holes. Secure it with by reinstalling the 1/8" hairpin will allow.

  • Page 25: Operation

    OPERATION KNOW YOUR SNOW THROWER Read this owner's manual and safety rules before operating your snow thrower. Compare the illustration below with your snow thrower to familiarize yourself with the various controls and their locations. LIFT RELEASE TRIGGER CHUTE TILT HANDLE LIFT HANDLE CRANK ROD UPPER CHUTE LOWER CHUTE SKID SHOE SCRAPER PLATE SPIRAL AUGERS, R.H. & L.H. UPPER AND LOWER DISCHARGE CHUTE Controls CHUTE TILT HANDLE Pivots the Upper Chute up or down to control the angle and distance of discharge.

  • Page 26: Maintenance

    RAISING AND LOWERING • In extremely deep snow, raise the snow thrower from the ground to remove the top layer and drive forward • To raise, push down on the lift handle until the snow only until the tractors front tires reach the uncleared thrower locks in the raised transport position. bottom layer of snow. Depress the tractor's clutch- • To lower, push down slightly on the lift handle and pull brake pedal and allow the spiral auger to clear the the trigger. With the trigger pulled, slowly lower the snow. Reverse the tractor and lower the snow thrower snow thrower until it reaches the ground.

  • Page 27: Service And Adjustments

    SERVICE AND ADJUSTMENTS LIFT RELEASE CABLE ADJUSTMENT CAUTION : Before servicing or adjusting the snow thrower, shut off the engine, remove • If the lift rod does not lock the snow thrower securely the spark plug wire(s), set the parking brake in the transport position, loosen the upper hex nut on and remove the key from the tractor ignition. the lift bracket a few turns and tighten the lower hex nut. Refer to figure 48 on page 21. • If the lift rod fails to unlock completely to lower the REPLACING AUGER BELT snow thrower, loosen the lower hex nut on the lift • Disengage the tractor's attachment clutch.

  • Page 28: Storage

    STORAGE PARTS TO REMOVE AT END OF SEASON STORAGE RECOMMENDATIONS • Lower the snow thrower to the ground. • Remove the snow thrower from the tractor. • Remove the clutch/idler assembly. (The two hanger brackets and the two shoulder bolts may be left • Clean the snow thrower thoroughly. Wash off any salt attached to the tractor frame.) deposit which may have dried on the thrower and • Remove the drive belt from the engine pulley. housing. • Any bare metal that has become exposed should be • If you replaced the engine pulley keeper on a manual painted or coated with a light oil to prevent rust. attachment clutch tractor, reinstall the tractor's original engine pulley keeper. See figure 33 on page 16 or • Store in a dry place.
  • Page 29 NOTES...
  • Page 30 PARTS REPAIR PARTS FOR MODEL LST42D 42" SNOW THROWER...
  • Page 31 REPAIR PARTS FOR MODEL LST42D 42" SNOW THROWER REF. PART QTY. DESCRIPTION REF. PART QTY. DESCRIPTION 39 27280 Bracket, Idler 05931 Housing, Bearing 49933 Shoulder Bolt, Round Head 2 65701 Housing Assembly 41 65367 Hanger Bracket Assembly, L.H. 3 71464 Gear Assembly 42 65450 Hanger Bracket Assembly, R.H. 4...
  • Page 32 REPAIR PARTS FOR MODEL LST42D 42" SNOW THROWER 57 61...
  • Page 33 REPAIR PARTS FOR MODEL LST42D 42" SNOW THROWER REF. PART QTY. DESCRIPTION REF. PART QTY. DESCRIPTION 43070 Washer, 3/8" 1 64637 Lift Shaft Assembly 710-1233 Screw, Oval #10-24 x 1" 710-0865 Hex Bolt, 1/2-13 x 1" 44482 Grip, Handle 710-0367 Hex Bolt, 5/8-11 x 1-1/2"...
  • Page 34 REPAIR PARTS FOR MODEL LST42D 42" SNOW THROWER REF. PART QTY. DESCRIPTION 43080 Carriage Bolt, 5/16-18 x 3/4" 43182 Hex Bolt, 5/16-18 x 3/4" 43083 Hex Nut, 5/16-18 4 43086 Lock Washer, 5/16" 43081 Washer, 5/16" Std. Wrt. 6 25727 Frame, Clutch and Pulley 7...

  • Page 35: Slope Guide

    SLOPE GUIDE (Keep this sheet in a safe place for future reference.) Use this guide to determine if a slope is safe for the operation of your tractor and snow thrower. Refer also to the instructions in your vehicle owners manual.
  • Page 36 REPAIR PARTS Agri-Fab, Inc. 809 South Hamilton Sullivan, IL. 61951 217-728-8388 www.agri-fab.com This document (or manual) is protected under the U.S. Copyright Laws and the copyright laws of foreign countries, pursuant to the Universal Copyright Convention and the Berne convention. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying or recording, or by any information storage or retrieval system, without the express written permission of Agri-Fab, Inc. Unauthorized uses and/or reproductions of this manual will subject such unauthorized user to civil and criminal penalties as provided by the United States Copyright Laws. © 2003 Agri-Fab, Inc.

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