Husqvarna SC18/968981201, SC18/968999352 manual Troubleshooting

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TROUBLESHOOTING

PROBLEM

 

ANSWER/COMMENT

Blade not disengaging

New Unit or New Belt:

 

1.

Run the machine with the blade engaged until the belt

 

 

stretches.

 

Used Unit or Old Belt:

 

1.

Adjust the Belt Keeper so each leg touches when idler

 

 

pulley is not engaged and so idler pulley clears Belt Keeper

 

 

when engaged.

 

2.

Be sure the correct Husqvarna belt is being used. If not,

 

 

replace with a Husqvarna belt.

 

3.

Belt Idler Pivot Bolt may be too tight or need lubrication.

 

4.

Belt Idler Return Spring may be broken or came off

 

 

anchors. Reattach or replace as necessary.

 

5.

Check to see if the Tension Cable is out of pulley. Install

 

 

cable in pulley and squeeze bracket sides to minimize

 

 

the gap to pulley.

 

 

 

Belt coming off

1.

RPM may be too high. Set to 3000 RPM See Technical

 

 

Bulletin “Throttle Cable Adjustment.”

 

2.

Align pulleys. See Technical Bulletin “Inspection Procedure

 

 

for Belt Tension “.

 

3.

Replace the Belt Idler Pulley Arm if it is bent.

 

 

 

Belt glazed or slipping

1.

Limit maximum depth of cut to 2 1/2”.

 

2.

Be sure the updated Blade Lift Springs are installed.

 

 

(Springs have 1.5 inch OD.)

 

3.

If the Blade Lift Springs are worn they will allow the blade to

 

 

cut too deeply, which causes the belt to slip. Replace if

 

 

necessary.

 

4.

Be sure the maximum RPM is set at 3000. See Technical

 

 

Bulletin “Throttle Cable Adjustment.”

 

5.

Be sure the correct Husqvarna belt is being used. If not,

 

 

replace with a Husqvarna belt.

 

6.

Check if belt is being stretched by comparing with a new

 

 

belt.

 

7.

Check to see if the Tension Cable is out of pulley. Install

 

 

cable in pulley and squeeze bracket sides to minimize the

 

 

gap to pulley.

 

8.

If the Gear Box Pulley or the Engine Pulley is wet, oily, or

 

 

damaged, clean or replace.

 

9.

Belt tension can be increased by tightening the Cable

 

 

Tension nut. If additional adjustment is unavailable, add a

 

 

1/2” stack of washers between Tension Nut and Cable

 

 

Bracket.

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Contents Operators manual Manual no REV 12/01/05Contents Features and Controls General Information Safety ProceduresOperating Instructions Do notBefore YOU Start Operating on HillsTransporting Preventative Maintenance Schedule Saftey and MaintenanceEngine Service and Warranty TWO Minute WarningAdjusting Chain Tension Service and MaintenanceCleaning and Washing Blade WearTroubleshooting Problem ANSWER/COMMENTImportant Engine must be off before checking Troubleshooting Pulley, Right Angle Drive Pulley with belt removed. Lock Sound and Vibration Statment This page left black intentionally