MTD 21A-450 Series manual Cleaning The Tine Area, Belt Replacement, Tires

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CLEANING THE TINE AREA

CLEANING THE TINE AREA

Clean the underside of the tine shield after each use. The dirt washes off the tines easier if washed off immediately instead of after it dries.

We do not recommend the use of pressure washers to clean your unit. They may cause damage to electric components, spindles, pulleys, bearings, or the engine. The use of pressure washers will result in shortened life and reduce serviceability.

BELT REPLACEMENT

CAUTION: Do not use an off-the-shelf belt.

Your tiller has been engineered with a belt made of special material (Kevlar Tensile) for longer life and better performance. It should not be replaced with an off-the-shelf belt.

If belt replacement is required, order belt by part number from your nearest authorized dealer.

Part No. 754-0434—‘‘V’’ Belt

Disconnect and ground the spark plug wire against the engine.

Remove the belt cover from the left side of the tiller as follows: See Figure 10.Remove two torx screws from the top of belt cover.

Remove the hex cap nut and flat washer from the side of the belt cover. Remove the self-tap screw at the bottom of the front of the cover.

Remove the belt keeper bracket located behind the engine pulley by removing two hex bolts and lock washers. See Figure 11.

Remove belt. Reassemble new belt, following instructions in reverse order.

Torx Screws

Belt Cover

Hex Cap Nut

BELT REPLACEMENTTIRESFlat Washer

Self Tap

Screw

Figure 10

Upon reassembly, make certain the belt is routed over the idler pulley and inside of belt keepers by engine pulley. See Figure 11.

Idler

Pulley

Rod

Engine

Belt Keeper

Idler

Pulley

Brkt.

Brkt.

 

 

 

Figure 11

 

TIRES

Recommended operating tire pressure is approximately 20 p.s.i. (check sidewall of tire for tire manufacturer’s recommended pressure). Maximum tire pressure under any circumstances is 30 p.s.i. Equal tire pressure should be maintained on both tires.

When installing a tire to the rim, be certain rim is clean and free of rust. Lubricate both the tire and rim generously. Never inflate to over 30 p.s.i. to seat beads.

WARNING: Excessive pressure (over 30 p.s.i.) when seating beads may cause tire/ rim assembly to burst with force sufficient to cause serious injury.

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Contents Operator’s Manual Rear Tine Tiller 21A-450 SeriesMTD PRODUCTS INC P.O. BOX 368022 CLEVELAND, OHIO TABLE OF CONTENTS FINDING MODEL NUMBERCALLING CUSTOMER SUPPORT MTD PRODUCTS INCSECTION 1 IMPORTANT SAFE OPERATION PRACTICES GENERAL OPERATIONSERVICE CHILDRENFigure 1 Safety labels found on your unit SECTION 2 LOOSE PARTS NOTE Cable tie not shownHandle Assembly Depth ControlStake RodAssembly ATTACHING DEPTH STAKE ASSEMBLY ATTACHING THE HANDLE ASSEMBLYSECTION 3 ASSEMBLING YOUR TILLER TO REMOVE UNIT FROM CARTONCHECKING THE CLUTCH ADJUSTMENT ATTACHING THE CLUTCH CABLEATTACHING THE CONTROL ROD NOTE Do not put fingers under the belt coverTIRE PRESSURE SECTION 4 KNOW YOUR TILLERCHOKE LEVER GEAR SELECTION HANDLEHANDLE ADJUSTMENT SECTION 5 OPERATING YOUR TILLERCLUTCH CONTROL BAIL DEPTH STAKESECTION 6 MAKING ADJUSTMENTS BELT TENSION ADJUSTMENTTO OPERATE THE TILLER SECTION 7 SERVICE CARBURETOR ADJUSTMENTSECTION 8 MAINTAINING YOUR TILLER ENGINECLEANING THE TINE AREA BELT REPLACEMENTTIRES SECTION 10 TROUBLE SHOOTING GUIDE SECTION 9 OFF-SEASON STORAGESECTION 11 PARTS LIST FOR MODEL 450 SERIES MODEL 450 SERIES 4449 2630Labels MODEL 450 SERIES DESCRIPTION MANUFACTURER’S LIMITED WARRANTY