Ryobi S430 RY34441 - Manual (Page 13)

9 — English
OPERATION
WARNING:
Always shut off engine before fueling. Never add fuel to
a machine with a running or hot engine. Move at least
30 ft. from refueling site before starting engine. Do not
smoke and stay away from open flames and sparks.
Failure to safely handle fuel could result in serious per-
sonal injury.
OXYGENATED FUELS
DO NOT USE E85 FUEL. IT WILL VOID YOUR
WARRANTY.
NOTE: Fuel system damage or performance problems re-
sulting from the use of an oxygenated fuel containing more
than the percentages of oxygenates stated below
are not
covered under warranty.
Ethanol. Gasoline containing up to 10% ethanol by volume
(commonly referred to as E10) or 15% ethanol by volume
(commonly referred to as E15) are acceptable.
E85 is not.
CAUTION:
Attempting to start the engine before it has been properly
filled with lubricant will result in equipment failure.
ADDING/CHECKING ENGINE LUBRICANT
See Figure 8.
Engine lubricant has a major influence on engine perfor-
mance and service life. This unit is shipped with a 20W50
engine lubricant to assist in the break-in period. For best
operating performance, continuing to use 20W50 engine
lubricant is recommended, however, SAE 30, 10W30, or
10W40 are all acceptable lubricants to use in this product.
Always use a 4-stroke engine lubricant that meets or exceeds
the requirements for API service classification SJ. Check
lubricant level before each use.
NOTE: Non-detergent or 2-stroke engine lubricants will
damage the engine and should not be used.
To add engine lubricant:

Remove the cap and seal from lubricant bottle pro-
vided.
 Unscrew the oil cap/dipstick and remove.
 Using funnel provided, add entire bottle of engine lubricant
through oil fill hole.
 Reinstall the oil cap/dipstick and secure.
To check engine lubricant level:

Set unit on a flat surface.
 Wipe dipstick clean and re-seat in hole; do not rethread.
 Remove dipstick again and check lubricant level. Lubricant
level should fall within the hatched area on the dipstick.
 If level is low, add engine lubricant until the fluid level rises
to the upper portion of the hatched area on the dipstick.
 Replace and secure the oil cap/dipstick.
CAUTION:
Do not overfill. Overfilling the crankcase may cause
excessive smoke, oil loss, and engine damage.
OPERATING THE TRIMMER
See Figure 9.
WARNING:
Engine housing may become hot during trimmer opera-
tion. Do not rest or place your arm, hand, or any body
part against the engine housing during trimmer operation.
Only hold the trimmer as shown in Figure 9 with all body
parts clear of engine housing. Extended contact with the
engine housing may result in burns or other injuries.
WARNING:
Always position the unit on the operator’s right side. The
use of the unit on the operator’s left side will expose
the user to hot surfaces and can result in possible burn
injury.
WARNING:
To avoid burns from hot surfaces, never operate unit with
the bottom of the engine above waist level.
Hold the trimmer with your right hand on the rear handle
and your left hand on the front handle. Keep a firm grip with
both hands while in operation. Trimmer should be held at a
comfortable position with the rear handle about hip height.
Cut tall grass from the top down. This will prevent grass from
wrapping around the shaft housing and string head which
could cause damage from overheating. If grass becomes
wrapped around the string head, STOP THE ENGINE, dis-
connect the spark plug wire, and remove the grass.
WARNING:
Always hold the string trimmer away from the body keep-
ing clearance between the body and the product. Any
contact with the housing or string trimmer cutting head can
result in burns and/or other serious personal injury.