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TO TURN YOUR HEDGE TRIMMER ON

WARNING: 

Before connecting your hedge

trimmer to power supply source, always
check to be sure it is not in lock-on position
(depress and release the switch trigger).
Failure to do so could result in accidental
starting of your trimmer resulting in possible
serious injury. Also, do not lock the trigger on
jobs where your trimmer may need to be
stopped suddenly.

Your hedge trimmer is equipped with a lock-off button,
that reduces the possibility of accidental starting. 

1. Slide the lock-off button forward (Fig. 3).

2. Depress and hold the switch trigger. 

3. Release the lock-off button. 

NOTE:

The lock-off button is located on top of the
handle. The lock resets each time the switch
trigger is released.

LOCK-ON FEATURE

Your hedge trimmer is also equipped with a lock-on 
feature, which is convenient when continuous trimming
for extended periods of time is required. 

To Lock-On

1. Slide the lock-off button forward (Fig. 4).

2. 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 the switch trigger and release it.

If you have the lock-on feature engaged during use and
your hedge trimmer becomes disconnected from power
supply, disengage the lock-on feature immediately.

EXTENSION CORD RETAINER 

An extension cord retainer has been provided to prevent
extension cord from becoming disconnected from your
trimmer during use. It is molded into the switch handle of
your hedge trimmer. Plug extension cord into plug
recess below switch handle, then snugly fit cord into 
retainer as shown in Figure 5.

Extension cord retainer works best with 16 A.W.G.
extension cords. When using 14 A.W.G. extension 
cords the cord may be tight in extension cord retainer.
We suggest an alternate method as shown in figure 5 for
securing tight extension cords.

OPERATING INSTRUCTIONS

7

Fig. 3

Fig. 4

Fig. 5

Alternate Method

of Securing

Extension Cord

Extension Cord

Retainer

Lock-Off Button

Switch Trigger

Switch Trigger

Lock-Off Button

Lock-On Tab

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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