Ryobi SP450 - Manual (Page 8)

8 – English
OPERATION
WARNING:
Do not allow familiarity with tools to make you care-
less. Remember that a careless fraction of a second is
sufficient to inflict serious injury.
WARNING:
Always wear eye protection with side shields marked to
comply with ANSI Z87.1. Failure to do so could result in
objects being thrown into your eyes resulting in possible
serious injury.
WARNING:
Do not use any attachments or accessories not
recommended by the manufacturer of this tool. The use
of attachments or accessories not recommended can
result in serious personal injury.
WARNING:
Do not wear loose clothing or jewelry when operating this
product. They could get caught in moving parts causing
serious injury. Keep head away from sander/polisher
and sanding or polishing area. Hair could be drawn into
sander/polisher causing serious injury.
APPLICATIONS
You may use this tool for the purpose listed below:

Sanding on wood and wood product surfaces
 Removing rust from and sanding steel surfaces
 Polishing and buffing painted surfaces
TWO-SPEED SWITCH TRIGGER
See Figure 2, page 11.
WARNING:
Before connecting the sander/polisher to a power supply,
always make sure it is not in the “locked-on” position.
Failure to do so could result in accidental starting of the
sander resulting in possible serious injury.
The sander/polisher is equipped with a two-speed switch
trigger located in the handle. To turn ON, depress switch
trigger. To turn OFF, release switch trigger. For low speed
sanding or polishing, depress switch trigger halfway. For
high speed sanding or polishing depress switch trigger all
the way. Be sure switch trigger is in OFF position before
connecting to power supply.
LOCK-ON BUTTON
See Figure 2, page 11.
This sander/polisher is equipped with a lock-on feature,
which is convenient for continuous sanding/polishing for
extended periods of time.
To lock-on:

Depress the switch trigger.
 Push in and hold the lock-on button, located on the side
of the handle.
 Release the switch trigger.
 Release the lock-on button and the sander/polisher will
continue running.
 To release the lock, depress and release the switch trigger.
If the lock-on feature is engaged during use and the sander/
polisher becomes disconnected from the power supply,
disengage the lock-on feature immediately.
NOTE: Since the sander/polisher has two speeds, it is possible
to lock-on in both speeds. To lock-on in low speed, press
two-speed switch trigger halfway and follow above lock-on
directions for lock-on sanding/polishing. To lock-on at high
speed, depress trigger fully and follow above directions.
INSTALLING/REMOVING POLISHING
BONNET
See Figure 3, page 11.
NOTICE:
Make sure the polishing bonnet is installed with the
polishing surface completely covering the edges of the
rubber pad. Failure to do so may result in the bonnet
tearing, resulting in possible property damage.
 Unplug the sander/polisher.
 Remove the sanding disc if necessary.
 Slip polishing bonnet edges over rubber disc.
 To remove, pull polishing bonnet edges over and off rub-
ber disc.
POLISHING
See Figure 4, page 12.
WARNING:
Keep a firm grip on the tool with both hands at all times.
Failure to do so could result in loss of control leading to
possible serious injury.
When polishing, hold the sander/polisher firmly, allowing it
to operate freely without unnecessary pressure. The weight
of the tool alone will provide adequate pressure for polish-
ing at top efficiency. For best results, always operate at low
speed when polishing.
Bonnets must be kept clean and free from grit, dirt, and
other abrasive particles. When bonnets become dirty and