Stihl FS 490 C-M Instruction Manual - Page 27

Checking the Thrust Plate 2 2 N Pull the guard washer (1) and thrust plate (2) off the shaft. N Thoroughly clean the guard ring, shaft, thrust plate and guard washer - do not remove the guard ring. Blocking the Shaft English Fitting the mowing head with screw mounting Keep the supplement sheet for the mowing head in a safe place. 681BA196 KN 002BA385 KN 1 1 The thrust plate consists of the thrust plate body (1) to which a captive guard washer (2) is fitted. WARNING Never use a thrust plate without the guard washer. Always replace a thrust plate if the guard washer is missing. Cleaning Gearbox Mounting Hardware for Cutting Attachment 2 1 3 4 NOTICE Check inside of guard ring (4) and area around it for dirt at regular intervals, or when you change the cutting attachment, and clean if necessary as follows: 002BA407 KN 1 2 3 2 The output shaft (1) must be blocked with the stop pin (2) to mount or remove cutting attachments. The stop pin is included with the machine and is available as a special accessory. N Insert the stop pin (2) in the bore (3) in the gearbox as far as stop, apply slight pressure. N Rotate shaft or cutting attachment until the stop pin slips into position and blocks the shaft. Mounting the Cutting Attachment WARNING Use a deflector that matches the cutting attachment - see "Mounting the Deflector". 0812BA021 KN 1 N Fit the thrust plate N Turn the mowing head anticlockwise on the shaft (1) as far as it will go N Retain the shaft N Tighten the mowing head NOTICE Remove the tool that was used to block the shaft. Removing the Mowing Head N Retain the shaft N Turn the mowing head clockwise FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L 25