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MAINTENANCE AND REPAIR INSTRUCTIONS

10

BLADE REPLACEMENT

WARNING

: To avoid serious personal 

injury, be sure the unit is off and unplugged
before cleaning or performing any
maintenance on it.

WARNING:

When servicing, use only

identical Ryobi replacement parts. Use of 
any other parts may create a hazard or cause
product damage. 

WARNING:

To prevent serious personal

injury, wear gloves when handling, removing
or installing the cutting blades. When
handling blade assembly, do not place your
hand or fingers between blades or in any
position where they could get pinched or cut.

Disconnect hedge trimmer from power supply.

1. Remove blade cover screw (Fig. 10).

2. Remove blade cover: To remove, push blade cover

forward and lift from hedge trimmer. 

3. Remove blade screws (Fig. 11).

NOTE:

A flat blade or # T20 Torx bit screwdriver. is
required to remove blade screws.

4. Remove grease cover and blade assembly.

5. Make sure drive washer remains installed on drive

pin (Fig. 11).

6. Align slot in new blade assembly and grease cover

with drive washer on gear assembly (Fig. 12).

7. After aligning, continue to hold blade assembly in

place, then manually slide blade assembly back and
forth until screw holes in grease cover align with
screw holes in gear housing (Fig. 13).

WARNING:

Blades are sharp. When

manually sliding blade assembly, do not
place your hand or fingers between blades 
or in any position where they could get
pinched or cut.

Fig. 10

Fig. 11

Drive Washer

Blade Screws

Summary of Contents for HT816r, HT818r, HT822r

Page 1: ...HT816r HT818r HT822r Electric Hedge Trimmer OPERATOR S MANUAL FOR QUESTIONS CALL 1 800 345 8746 in U S or 1 800 265 6778 in CANADA www ryobi com IMPORTANT MANUAL DO NOT THROW AWAY...

Page 2: ...with easy to understand operating instructions Read the whole manual and follow all the instructions to keep your new outdoor power tool in top operating condition PRODUCT REFERENCES ILLUSTRATIONS AN...

Page 3: ...Trimmer plugged in Unplug from outlet when not in use changing attachments blades or before servicing Avoid dangerous environments Never operate your unit in damp or wet conditions Moisture is a shoc...

Page 4: ...age FOR SAFE OPERATION Avoid unintentional starting Do not carry plugged in unit with your finger on the switch Be sure switch is off when plugging in Always remain alert Use common sense To prevent i...

Page 5: ...specially children and pets at least 50 feet 15 m from the operating area KEEP HANDS AWAY FROM BLADES WARNING Moving blades can cause severe injury Do not touch the blades when starting or while opera...

Page 6: ...shes with a branch diameter of up to 3 8 inch Fig 2 KNOW YOUR UNIT Screw Screw Lock Nut Handle Slot Blade Guard Front Handle Rear Handle Ears Rear Handle Lock Nut Front Handle Blade Guard Cutting Blad...

Page 7: ...Depress and hold the switch trigger 3 Release the lock off button 4 Pull lock on tab back with your thumb and hold 5 Release switch trigger then release lock on tab To Release the Lock On 1 Depress th...

Page 8: ...reduce your pace TO TRIM A HEDGE WARNING Clear the area to be cut before each use Remove all objects such as cords lights wire or string which can become entangled in the cutting blade 1 Use hedge tr...

Page 9: ...act with plastic parts They contain chemicals that can damage weaken or destroy plastic Wipe off the unit with a clean dry soft cloth Keep handles dry clean and free from oil and grease at all times S...

Page 10: ...ve blade cover screw Fig 10 2 Remove blade cover To remove push blade cover forward and lift from hedge trimmer 3 Remove blade screws Fig 11 NOTE A flat blade or T20 Torx bit screwdriver is required t...

Page 11: ...slots in housing then slide blade cover back into its correct position Fig 15 11 Tighten blade cover screw securely WARNING Make sure blade cover is replaced before connecting your hedge trimmer to po...

Page 12: ...a double insulated unit must be identical to the parts they replace Refer any repair to an authorized service dealer A double insulated unit is marked with the words DOUBLE INSULATION or DOUBLE INSUL...

Page 13: ...el HT816r 1 180183 REPLACEMENT BLADE Model HT818r 1 180184 REPLACEMENT BLADE Model HT822r 2 180185 BLADE PLATE 3 180398 BLADE SCREW 4 180049 FRONT WRAP AROUND HANDLE 5 180048 FRONT HANDLE SCREW 6 1800...

Page 14: ...found in the reasonable judgement of RYOBI to be defective in material or workmanship will be repaired or replaced by an authorized RYOBI service dealer without charge for parts and labor The RYOBI P...

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