Ryobi RY13050 Benutzerhandbuch

11 — English



  Remove the air filter.



  Clean the foam filter element with warm soapy water. 

Rinse and let dry.

 

NOTE: If the foam filter element is damaged, it should be 
replaced.



  Apply a light coat of engine oil to the foam filter element, 

then squeeze it out.



  Reinstall the air filter.

 

NOTE: Make sure the filter is seated properly inside the 
cover. Installing the filter incorrectly will allow dirt to enter 
the engine, causing rapid engine wear.



  Reinstall the cover and tighten knob to secure.

Check for fuel leaks. A leaking fuel cap is a fire hazard 
and must be replaced immediately. If you find any leaks, 
correct the problem before using the product. Failure 
to do so could result in a fire that could cause serious 
personal injury.

The fuel cap contains a non-serviceable filter and a check 
valve. A clogged fuel filter will cause poor engine perfor-
mance. If performance improves when the fuel cap is loos-
ened, check valve may be faulty or filter clogged.  Replace 
fuel cap if required.

This engine uses a Champion RY4C spark plug with .025 in. 
electrode gap. Use an exact replacement and replace 
 annually.

See Figure 16.
For best performance, engine lubricant should be changed 
after every 25 hours of operation. 
To change the engine lubricant:


  Stop the engine and disconnect the spark plug wire. Allow 

the engine to cool completely before proceeding.



  Remove the oil fill cap/dipstick.



  Tip the unit backward so the handles rest on the ground 

and allow lubricant to drain from the oil fill hole into an 
approved container.

 

NOTE: Drain the lubricant while the engine is still warm 
but not hot. Warm lubricant will drain quickly and more 
completely.



  Return the unit to an upright position and refill with lubri-

cant following the instructions in the 

Engine Lubricant section previously in this manual.

NOTE: Used lubricant should be disposed of at an  approved 
disposal site. See your local retailer for more information.

See Figure 17.
The belt was designed to surpass the life of the unit, however, 
if you find a need to replace the belt, instructions are given 
below.  Changing the belt requires disassembly of the drive 
unit. If you are unsure if you are qualified to perform this 
operation, take the unit to an authorized service center.


  Remove blade and blade nut according to 

Blade.



  Use a flat head screwdriver to remove screws from ring 

washer and blade guard. Remove ring washer and blade 
guard. 



  Use a T25 Torx key, remove the screws from the belt 

cover. Remove the belt cover. 



  Using M10 and M8 wrenches, remove hex nuts and bolts 

gear/shaft assembly. Remove gear/shaft assembly.



  Replace belt.



   Reassemble in reverse order. Tighten all hardware se-

curely.

Ensure all components are completely and properly re-
assembled before operating edger.  Failure to correctly 
reassemble all belt components may result in serious 
injury or property damage.

See Figures 18 - 20.
Inspect the camshaft-to-rocker arm clearance after every 
25  hours of operation. This should be done in a clean, dust-
free environment.
NOTE: This procedure requires partial disassembly of the 
engine. If you are unsure if you are qualified to perform this 
operation, take the unit to an authorized service center. 


  Stop the engine and disconnect the spark plug wire. Allow 

the engine to cool completely before proceeding.



  Remove the screw from the top engine cover. Remove 

engine cover and set aside.



  Using a Torx screwdriver, remove the screw from the 

rocker arm cover. Remove the cover and set aside.



  Position camshaft by pulling the recoil starter grip just 

until the deep hole in the camshaft gear is located at the 
6 o’clock position as shown.



   Place the feeler gauge under each rocker arm and measure 

the gap. The gap should be between .006 in. (0.15 mm)  
and .008 in. (0.20 mm) for both rocker arms. 

 

NOTE:  Use a standard automotive feeler gauge. The 
.006 in. (0.15 mm) feeler gauge should slide between 
the rocker arm and valve stem with a slight amount of 
resistance but without binding. The 0.008 in. (0.20 mm)