20
English / USA
FS 500, FS 550
15 Limit stop for circular saw 
blades 225
16 Limit stop for circular saw 
blades 250
Mounting the stop
: First remove the grass shield 
(if fitted).
: Place limit stop 15 or 16 in position.
: Insert the screws and tighten them 
down firmly.
: If you use one of the mowing heads, 
note that the skirt (17) must be 
attached to the deflector (11).
: Use lower guide slot (18) for 
mowing heads 1 and 2. Push the 
blade (19) into the upper guide slot 
and line it up with the hole.
: Fit the screw and tighten it down 
firmly.
: Use the skirt’s upper guide slot (20) 
for mowing head 3.
Blocking the Drive Shaft
: Insert the stop pin (1) in the bore (2) 
in the gearhead as far as stop, apply 
slight pressure.
: Rotate the output shaft until the stop 
pin slips into position.
: Use combination wrench (3) to 
loosen and unscrew the nut (4) 
clockwise.
: Remove the rider plate (5) and 
thrust washer (6).
398BA049 KN
15
16
398BA044 KN
20
19
18
17
11
Mounting the Cutting Tools
6
5
4
3
2
1
398BA051 KN