Husqvarna W448 Operation Manual - Page 21

Adjusting Brakes NOTE: The traction belt must disengage as the brake starts to engage. 1. Turn off the engine, remove the ignition key and allow unit to cool. 2. If brakes do not disengage fully when traction belt is engaged, the brakes are too tight. Disconnect trunnion from the clutch weldment and turn the trunnion up the brake rod to reduce braking. Reconnect the trunnion to the clutch weldment. 10. Replace traction belt guard. 11. Replace clutch idler pulley spring. 12. Lower the unit. 13. Check steering lever adjustment. WARNING! Avoid injury. An extension spring can be dangerous. Always use tools specifically designed for installing or removing an these springs. Always compress or extend springs slowly. Wheel Clutch Brake Rod Trunnion Steering Rod Trunnion Wheel Clutch Shaft Pulley 3. If brakes do not engage fully when traction belt is disengaged, the brakes are too loose. Disconnect trunnion from the clutch weldment and turn the trunnion down the brake rod to increase braking. Reconnect the trunnion to the clutch weldment. 4. Start engine and test in low gear for proper brake engagement. Replacing Traction Belts 1. Turn off the engine, remove the ignition key and allow unit to cool. 2. Release the steering levers. 3. Raise the rear of the unit so that the drive wheels are off the ground. Make sure the unit is securely supported. 4. Disconnect clutch idler pulley spring. 5. Remove traction belt guard. 6. Remove hair pin and trunnion holding steering control rod to wheel clutch weldment. 7. While slowly turning the drive wheel, work the traction belt off the transmission shaft pulley and drive wheel. 8. Install new traction belt. 9. Connect steering control rod to wheel clutch arm weldment with trunnion and hair pin. - 21 - Idler Spring Traction Belt