MTD 993 manual Drive Belt

Page 12

Engine

Brake

 

 

Pulley

 

Auger Control

 

 

Bracket

 

 

 

 

 

 

Assembly

 

Belt

 

 

 

 

 

Large

 

 

 

 

Shoulder

 

 

 

 

Bolt

Pulley

 

 

 

 

Extension

 

 

 

 

 

 

 

 

Spring

 

 

Figure 18

 

 

 

Auger

Idler

Rod

Ferrule

 

Brake

 

Bracket

 

Assembly

Cable

 

Roller

“Z”

Guide

 

Fitting

 

Figure 19

Auger

Housing

 

Remove

Frame Assembly

Screw

Lock Washer

 

Figure 20

8.Separate the auger housing from the frame assembly by tilting the housing forward and pulling up the handles.

9.Using a 1/2” wrench remove the hex screw and belleville washer from the centre of the pulley on the auger housing. Lift the brake bracket assembly out of the pulley groove and remove the pulley. See Figure 21. Be careful not to lose the key.

10.Remove and replace auger belt inside belt keepers.

11.Reassemble pulley to auger housing with hex screw and belleville washer (cupped is toward the pulley). Be certain key is in place on shaft and brake puck is seated in the pulley groove.

Belt

Keepers Hex Screw

Belleville Washer

Figure 21

Proper Adjustment With the auger clutch lever in the disengaged position the top surface of the new belt should be even with the outside diameter of the pulley. To adjust, disconnect ferrule from the brake bracket assembly and thread ferrule in (towards idler) to increase tension on belt, out to decrease tension.

NOTE: The brake puck must always be firmly seated in the pulley groove when the auger clutch lever is in the disengaged position.

Drive Belt

1.Unhook extension spring from the belt cover plate. See Figure 18.

2.Remove drive belt from the engine pulley and bottom drive pulley.

3.Replace belt and reassemble in reverse order.

4.Reassemble the two halves of the unit hooking the lower portion of the auger housing over the stationary shoulder bolts in the frame assembly.

5.Secure the two halves with the two screws and lock washers

6.Attach the “Z” fitting of the cable into the brake bracket assembly. See Figure 19.

7.Slip the auger control belt over engine pulley.

8.Insert ferrule on auger idler rod into bracket assembly and secure with flat washer and cotter pin.

9.Reassemble the large shoulder bolt and lock washer as shown in Figure 18.

10.Reassemble belt cover and chute directional control.

11.Remove plastic film from gas cap.

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Contents OPERATOR’S Manual Finding Your Model Number Calling Customer SupportCopy the model number here Copy the serial number hereImportant Safe Operation Practices TrainingPreparation OperationMaintenance and Storage Safety Labels Found on Snow ThrowerSET-UP Instructions Auger Shear BoltsFinal Adjustments Auger and Traction Control Clutch AdjustmentSkid Shoe Adjustment See Figure Shift Lever Adjustment See FigureControls Shift LeverChute Directional Control Traction CONTROL/AUGER Clutch LockOperation GAS and OIL FILL-UPTo Start Engine Adjustments Lubrication Maintenance Belt Removal and ReplacementAugers Shave Plate and Skid ShoesDrive Belt OFF-SEASON Storage Changing the Friction WheelSpacer Support Bracket ShaftTrouble Shooting Guide Trouble Possible Causes Corrective ActionModel 193 6478 Model Model Model Model Model Model Model MANUFACTURER’S Limited Warranty for