Filter
Top Products
10
• Install the flat washer (part no. 736-04088) and the
triplex edger blade (part no. 781-0748) that are
packed separately in the box.
• Secure with the bell washer and the hex lock nut
removed earlier. See Figure 13.
Figure 13
IMPORTANT:
Use a torque wrench to tighten the hex
lock nut to between 37 foot-lbs. and 50 foot-lbs.
• Reinstall the spindle belt guard with the self tapping
screws removed earlier.
• Carefully place the drive belt back onto the engine
flywheel pulley, and retighten the flange lock nut on
the top of the frame.
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 belt is
pinched.
• Set the bevel adjustment lever (refer to Figure 8) in
the center notch to place the edger blade in a 90°
position (see Figure 14) and place the blade depth
control lever in the lowest position.
Figure 14
IMPORTANT:
For best results, proceed slowly along the
path being trenched, slowly moving the edger back and
forth through the cutting area.
SECTION 6: MAINTAINING & SERVICING YOUR EDGER
WARNING: Disconnect the spark plug wire
and ground against the engine before
performing any adjustment, repairs or
maintenance.
Lubrication
Engine
Refer to the Engine Manual packed with your edger for
a detailed description of all engine-related service
specifications.
Wheels
Lubricate the wheels and bearings at least once a
season with a light oil. Also if the wheels are removed
for any reason, lubricate the surface of the axle bolt and
the inner surface of the wheel with light oil.
Pivot Points
Lubricate the pivot points on the blade control bail,
blade depth control lever, and if applicable, the blade
adjustment lever, and curb height adjustment lever with
light oil at least once a season.
Bearing Block
On the Model 550 and551, the bearing block is
equipped with a grease fitting. Lubricate with a grease
gun after every 25 hours or at least once a season. On
the Model 521, simply apply oil through the tiny hole in
the cover plate. See Figure 15.
Figure 15
Edger Blade
Flat Washer
Triplex Blade
Bell Washer
Hex Lock Nut
Edging/Trenching Position
90°
Model 550 and 551
Shown
Lube
Fitting