Toro 20351 Quality Guide

Toro 20351 - High Wheel CARB Walk Power Mower Manual

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  • Toro 20351 | Quality Guide - Page 1
    MANUAL
  • Toro 20351 | Quality Guide - Page 2
    If you have comments or questions about this manual contact your Distributor Service Manager or us directly at the following address: The Toro Company Consumer Service Department 8111 Lyndale Avenue South Bloomington, MN 55420-1196 The Toro Company reserves the right to change product specifications
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    Blade Level 4-4 Walk Behind Mowers 4-4 Specifications and Tolerances 4-4 Adjusting Height of Cut 4-5 Models with Height of Cut Lever on Each Wheel 4-5 Mechanism Descriptions 4-5 Slipping Height of Cut Adjuster 4-5 Wheel Does Not Touch Ground 4-6 Service Dealer's Guide to Great Quality of
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    Adjusting Side-to-Side Level 4-6 Adjusting Front-to-Rear Pitch 4-6 Models with Single Height of Cut Adjustment Lever 4-7 Wheel Does Not Touch Ground 4-7 Adjusting Side-to-Side Level 4-7 Adjusting Front-to-Rear Pitch 4-7 Riding Mowers 4-8 825 Rear Engine Rider 4-8 Adjusting Side-to-Side Level
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    Notch Repair Kits 6-1 Anti-scalping Roller Kit P/N 93-3898 6-2 Level Assist Kit P/N 94-9780 6-2 Level Assist Kit P/N 94-1592 6-2 Baffle Kits 6-2 Appendices Glossary 7-1 Special Tools 7-7 Mower Quality of Cut Checklist 7-8 Service Dealer's Guide to Great Quality of Cut iii
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    contains a Mower Quality of Cut Checklist for use when troubleshooting quality of cut problems. Contents This manual contains the following sections: 1. Introduction - This section. 2. Elements of a Great Quality of Cut - This section provides an overview of the setup and operator instruction that
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    the customer's lawn for demonstration of the problem and the suggested solution may be necessary. On all mowers, proper mower setup consists of doing the following and making any necessary adjustments: 1. Inspect for damage, scratches, dents, and for bent or crooked parts. Make sure the wheels roll
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    . Refer the operator to the operator's manual for details on operating the mower safely and effectively. Mower Preparation When reviewing mower operation procedures with an operator, do the following: • Identify the location of the air filter and explain how to check it. • Describe how often the
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    manual contains tips for getting a great quality of cut. Remind the operator of the following: • The best ground speed is normal walking speed. However, if the engine bogs down at this speed, slow down to avoid degrading the lawn appearance. • With a mulching mower rotary mowers designed the lawn
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    to avoid future starting problems. 1. Stop the engine and wait for all moving parts to stop. 2. Disconnect the wire from the spark plug. 3. Walk behind mowers: Drain the fuel and oil from the engine. Tip the mower on its side, air filter up. Riding mowers: Remove the mower attachment, or raise and
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    model and type of blade. Sand and other abrasive materials can wear away the metal that connects the flat and curved parts of the blade. Check the blade before using on the mower. If you notice a slot or wear, replace balanced when neither end drops. Service Dealer's Guide to Great Quality of Cut
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    to the owner's manual for your particular unit for proper blade bolt/nut torque. Some common Toro, Toro Wheel Horse, and Lawn-Boy torque values are shown in the following table. Blade Bolt (Nut) Torque Guide for Lawn-Boy, Toro, and Toro Wheel Horse Mowers built in 2002 Model Lawn-Boy 21-inch walk
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    discusses the height of cut system used on the mower. Cast deck models (Toro Super Recycler and Lawn-Boy Gold Series) use notches cast into the mower housing (Figure 10) and spring arms and pins to engage those notches. Figure 10 P2260001.JPG Service Dealer's Guide to Great Quality of Cut 4 - 1
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    models (Toro Recyclers and Lawn-Boy Silver Series) use spring arms and pins to engage notches in a plate bolted to the mower housing (Figure 11). Checking Blade Level- All Mowers measure from and will serve you for all mowers up to 48 inches wide and with a wheel base less than about 84 inches. For
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    . Always check the Operator's Manual for the correct pressure. 2. Make a simple sketch of the mower housing to use for recording measurements. Show the outline of the mower and the blade(s). Leave a Figure 16 MVC-725X.JPG Figure 15 sketch2.TIF Service Dealer's Guide to Great Quality of Cut 4 - 3
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    Mowers For instructions on checking and adjusting the blade tracking on a riding mower, see the subsection in these instructions that covers the mower measurements. Note: Tolerances in everything including wheels and pivot arms make the blade pitch Service Dealer's Guide to Great Quality of Cut
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    suspension or height of cut adjusters on a given mower determine the procedures to use in adjusting the height of cut. Models with Height of Cut Lever on Each Wheel Mechanism Descriptions Toro and Lawn-Boy have similar systems for individual wheel adjusters. A spring arm with a pin to engage a notch
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    ground, you can correct the problem by lowering one of the front wheels. Remove the front wheel that is on the ground mower is rarely necessary. If the blade pitch is significantly out of specification, it is best to replace the mower housing. 4 - 6 Figure 23 MVC-718X.JPG Service Dealer's Guide
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    If the connections at the ends of the link are worn, replace them. If the pitch is still dramatically out of specification, the front-to-rear link or one of the axles is bent. Replace the damaged parts. Figure 26 p2260004.JPG Service Dealer's Guide to Great Quality of Cut Figure 28 mvc-408x.jpg
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    passes the rear. This measurement can be between 1/8 inch (3.1mm) and 1/2 inch (12.7mm) low in front. If the difference is out of this range, the mower suspension is either worn or bent. Straighten or replace as needed. Figure 31 1222-05.TIF 4 - 8 Service Dealer's Guide to Great Quality of Cut
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    low in front. If the difference is out of this range, the mower suspension is either worn or bent. Straighten or replace as each other in the same cutting plane. This is considered part of blade tracking and is covered under that heading. Service Dealer's Guide to Great Quality of Cut 4 - 9
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    to the ground on each side. On single blade mowers use the same blade tip for both measurements (Figure 35). On multiple blade models. choose a tip on each blade and mark it so 2. Leveling bracket 3. Front hole 4. Rear hole XLlvlbkt.TIF 4 - 10 Service Dealer's Guide to Great Quality of Cut
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    . 32-inch (81.3cm) Cutting Unit The blade on this model should be 1/4-5/8 inch (6-16mm) lower in front. If the pitch mower. Figure 41 XL32pit3.TIF 1. Pitch adjusting nut (left) A = Down to raise mower B = Up to lower mower 2. Bolt and locknut 3. Mower pivot mount Service Dealer's Guide
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    adjusting nuts, move the mower pivot mount at the front of the mower housing (Figure 42). Note: Some models only have one pair of holes to select from. If the model you are working on only If it is not within specification, proceed to step 4. 4 - 12 Service Dealer's Guide to Great Quality of Cut
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    mower mount and secure in place mower. Figure 44 XL38pit2.TIF 1. Eye bolt locknut 2. Pivot mounting bolt 5. Rotate lock nuts on eyebolts to change the adjustment. To raise the front of the mower , tighten the eyebolt lock nuts. To lower the front of the mower and washer 4. Mower mount 3. Move
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    Side Level-All Cutting Units" on page 4-10). 10. Check gage wheel height. Each wheel should be approximately 3/8 inch (9.5mm) off the ground. Adjust as needed the mower, tighten the eyebolt lock nuts. To lower the front of the mower, loosen the eyebolt lock nuts. 4 - 14 Service Dealer's Guide to
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    To check for a bent spindle, remove the belt and spin the blade spindle. Look at is bent and should be replaced. Yet another way to check this with alternate way to check this is to remove the mower housing and turn it over. Remove both blades Service Dealer's Guide to Great Quality of Cut 4 - 15
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    mower or when you see an uneven cut on the lawn. Before you level the mower, set the air pressure in the front and rear tires to 12 psi (83kPa). This mower gage wheels. In the 3-4 inch (7.6-10.1cm) range, the mower is rotate hangar bracket to raise or lower mower (Figure 52). 2. After adjusting, tighten
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    in the height of cut ranges 3/4-2-3/4 inch (19.0-69.8mm). The gage wheels on the 52-inch (132.0cm) mower are on the ground in the height of cut ranges 1-1/2-3 inches (38-76mm). 1. Adjustable link 2. Jam nut Figure 55 3. Bolt 260_38_4.TIF Service Dealer's Guide to Great Quality of Cut 4 - 17
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    bolt on one side and rotate hangar bracket to raise or lower mower. 2. After adjusting, tighten bolt and check side-to-side level. The 48-inch and 52-inch (121.9cm and 132.0cm) models have two adjustable links (Figure 57). 1. Adjustable link 2. Jam nut Service Dealer's Guide to Great Quality of Cut
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    Side Level If the mower does not cut level side-to-side, check for a worn out gage wheel, a bent gage wheel support, or improperly tracking blades raise the front of the mower, turn the locknut clockwise. To lower, turn the locknut counterclockwise. Service Dealer's Guide to Great Quality of Cut
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    the adjustment point for the 60-inch (152.4cm) mower is different than the other models. 44-, 48-, 52-inch (111.7, 121.9, 132.0cm) Mowers Equalize side-to-side cut by adjusting the two carriage bolts on the gage wheel shaft on the back of the mower (Figure 65). Figure 63 .TIF Yet another way
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    wheels as shown (Figure 66). Adjusting Transport Blade Pitch Because the attachment lift is used when the PTO drive is engaged, blade pitch in transport must be adjusted to extend PTO drive belt of mower 6. Raises front of mower 1. Adjusting nut Figure 67 5XI_F2R.TIF Service Dealer's Guide to
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    the spindle mounts may be bent. Figure 71 2001-027.TIF Adjusting Side-to-Side Level These mowers should be level side-to-side within 3/16 inch (4.76mm). If adjustment is necessary, proceed bracket 3. Front hole 4. Rear hole Z_S2S.TIF 4 - 22 Service Dealer's Guide to Great Quality of Cut
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    housing may help align them. Loosen the spindle to mower housing bolts and insert shim washers until the saddles are in line. Then if you used washers to shim the spindle housing, remove the bolt and reassemble through the washer to secure it. Service Dealer's Guide to Great Quality of Cut 4 - 23
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    . Sharpen as instructed in the Operator's Manual. 8. Check for belt slippage on mowers using a belt in the blade drive system (Toro BBC, Riding Mowers, and Wide Area Mowers). 9. Keep the right (discharge) side of the mower over previously-cut grass. Specific Quality of Cut Problems and Possible
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    or the section "Checking and Adjusting the Blade Level" of this manual for adjustment instructions. 2. If the mower is equipped with an accelerator or mulch fan, replace it with a blade stiffener as used on some bagging mowers. Not all mowers require this. 3. Try a lower height of cut. 4. Check for
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    multiple blade mowers the blade tips should be in line within 1/8 inch. See the operator's manual or the section "Checking and Adjusting the Blade Level" of this manual for instructions on checking and repairing this problem. Uncut Grass 1. Verify the correct blade is being used. Some models have
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    issues. Toro Recycler Mulch Plug Model 59134 fits Toro 21-inch Recycler Steel Decks Model 59135 fits Toro 21-inch Super Recycler Cast operator to avoid replacing the deck. Note: These kits do not fit Vacu-Power, Landscaper, or commercial walk behind mowers. Service Dealer's Guide to Great Quality of
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    or bagging leaves. Baffle Kits/Applications Kit Number 85501 105-6979 68-7210 Mower Application 42-inch (3 blade) Side Discharge Mowers 44-inch (3 blade) Side Discharge Mowers (Recycler Baffles must be removed) 52-inch Side Discharge Mowers 6 - 2 Service Dealer's Guide to Great Quality of Cut
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    described in this manual • Quality of Cut Checklist-a form to copy and use when troubleshooting quality of cut problems Anti-scalp wheel-a wheel that contacts the ground only momentarily to prevent scalping when a mower encounters a high spot or crest in the lawn. Anti-scalp wheels cannot prevent
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    area, usually one square foot. A lawn that has more grass plants per square foot is refer to as more dense or thicker than a lawn with fewer plants per square foot. Disbursement-describes how well a mower spreads or disburses the clippings. 7 - 2 Service Dealer's Guide to Great Quality of Cut
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    is correctly positioned relative to the ground. See the instructions for the particular mower for the correct adjustment method and measurements. Lush grass-grass with a high water content. This is common in most areas during spring rains or on a lawn that is watered heavily. This term may be used
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    attachment through linkage attached to the tractor. raggdcut.TIF Rake-see Pitch. Recycler-Toro's patented mulching system. Rough terrain-terrain uneven enough to affect the quality of cut by causing the mower to bounce excessively. 7 - 4 1222-05.jpg Service Dealer's Guide to Great Quality of Cut
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    part of the plant, similar to a root, that is above ground but growing laterally rather than up, sometimes combined with grass clippings that have not decomposed. Some types of grass create little thatch; others need the thatch to be removed periodically. 5300-061.TIF Service Dealer's Guide
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    also appear as clumps of dry grass, generally in a row across the lawn. windrow.TIF 1/3 Rule-a recommendation by turf grass agronomists that not more than rotary mowers designed for urban and suburban lawns are designed to work best when operators follow this rule. 7 - 6 Service Dealer's Guide to
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    an arm that is slid under the mower attachment and pushed up to the bottom material with one smooth side is adequate for most mowers. MVC-732X.jpg An alternate height of cut the top inside of the mower deck. Wrap any kind of blade, make a mark in the tape. Pull the dowel out and measure from the end
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    The following page contains the Mower Quality of Cut Checklist. When troubleshooting quality of cut problems, copy this form and use it to record information about the problem, the troublshooting steps you take, and the results. MVC-714X.jpg 7 - 8 Service Dealer's Guide to Great Quality of Cut
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    or riding mower model/VIN S/N Mower attachment model/VIN S/N Bagger model/VIN S/N Clipping disposal: Side discharged Mulched Bagged 1. Complaint: Streaking Clumping 2. Description of problem: Ragged cut Other: Windrow 3. Is a vacuum or sweeper being used? Yes No 4. Service/Check/Adjust
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    QUALITY OF CUT MANUAL Form No. 492-4763
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MANUAL