Bolens 550 Operator's Manual page 9

Remove the spindle belt guard by removing the two
self tapping screws which secure it to the blade
plate assembly. See Figure 9.
\ Blade Plate
Guard
Sheaves
Note: Wheel and blade styles vary by model.
Figure 9
Use two wrenches (one wrench to prevent the hex
bolt head from spinning and the other to unthread
the hex lock nut) to remove the hex lock nut and
bell washer that secure the edger blade, leaving the
dual edger blade in place. See Figure 10.
/
Hex Bolt Head Hex rock Nut
Note: Wheel styles vary by model.
Figure 10
Install the flat washer (part no. 736-0366) and the
triplex edger blade (part no. 781-0748) that are
packed separately in the box.
• Secure with the betl washer and the hex lock nut
removed earlier. See Figure 11.
Bell Washer
Figure 11
IMPORTANT: Use a torque wrench to tighten the hex
lock nut to between 37 foot-lbs, and 50 foot-lbs.
• Reinstall the spindle bett guard with the setf tapping
screws removed earlier.
• Grasp the spindle bett guard with one hand and
push towards the rear of the unit to compress the
spring, and with your other hand carefully place the
drive belt back onto the engine flywheel pulley.
IMPORTANT: Make certain that the drive belt is seated
correctly on the blade spindle and that it is riding
smoothly on the spindle sheaves and is not pinched
between them. Repeat the first three steps if the bett is
pinched.
• Set the blade adjustment lever (refer to Figure 5) in
the center notch to place the edger blade in a 90 °
position (see Figure 7) and place the blade depth
control lever in the lowest position.
Edging AlongA Curb(modelsso
equipped)
NOTE: Edger features vary by modeL All edger models
do NOT come equipped to edge along a curb nor is
there a curb wheel kit available to modify your edger if it
was not purchased equipped to do so.
On models so equipped, the right, rear wheel of the
edger can be lowered into one of five positions to ease
the task of edging along a curb.
To adjust the height of the curb wheel, proceed as
follows: