Assembly instructions – Ryobi 790r User Manual

Page 9

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9

Install the cutting attachment shield when using
the unit as a grass trimmer

Install the cutting attachment shield on the shield mount
by inserting the three (3) screws into the shield mount.
Tighten securely with a flat blade screwdriver (Fig. 7).

REMOVE THE CUTTING ATTACHMENT AND
INSTALL THE CUTTING BLADE

NOTE: To make cutting blade removal and installation easier,

place the unit on the ground or on a work bench.

Remove the Cutting Attachment Shield

See Remove and Install the Cutting Attachment Shield.

Remove the Cutting Attachment

1. Align the shaft bushing hole with the locking rod slot and

insert the locking rod into the shaft bushing hole (Fig. 8).

(3) Screws

Cutting

Attachment

Shield

Shield Mount

Gear Housing

Fig. 7

ASSEMBLY INSTRUCTIONS

WARNING: The gear housing gets hot with
use. It can result in injury to the operator.
The housing remains hot for a short time
even after the unit is turned off. Do not
touch the gear housing until it has cooled.

WARNING: To avoid serious personal
injury, the cutting attachment shield MUST
be in place at all times while operating the
unit as a grass trimmer.

Cutting Attachment

Locking Rod

Slot

Locking Rod

Shaft Bushing Hole

Locking Rod Slot

Output Shaft

Bushing

Locking Rod

Output Shaft

2. Hold the locking rod in place by grasping it next to

the boom of the unit (Fig. 9).

3. While holding the locking rod, remove the cutting

attachment by turning it clockwise off of the output shaft
(Fig. 10). Store the cutting attachment for future use.

NOTE: The blade retainer under the cutting attachment

will be used when installing the cutting blade.

Fig. 8

Fig. 10

Fig. 9

Install the Cutting Blade

4. Place the cutting blade on the output shaft bushing

(Fig. 11).

WARNING: To avoid serious personal
injury, always wear gloves while handling or
installing the blade.

Shield

Mount

Locking Rod

Cutting

Blade

Blade Retainer

Nut

Output Shaft

Bushing

Pilot Hole

Fig. 11

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