Ryobi RY29550 Operator's Manual - Page 16

MAINTENANCE WARNING: When servicing, use only identical replacement parts. Use of any other parts may create a hazard or cause product damage. WARNING: Always wear eye protection 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: Before inspecting, cleaning, or servicing the machine, shut off engine, wait for all moving parts to stop, and disconnect spark plug wire and move it away from spark plug. Failure to follow these instructions can result in serious personal injury or property damage. GENERAL MAINTENANCE Avoid using solvents when cleaning plastic parts. Most plastics are susceptible to damage from various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, dust, lubricant, grease, etc. WARNING: Do not at any time let brake fluids, gasoline, petroleumbased products, penetrating lubricants, etc., come in contact with plastic parts. Chemicals can damage, weaken or destroy plastic which may result in serious personal injury. You can often make adjustments and repairs described here. For other repairs, have the trimmer serviced by an authorized service dealer. installing reEl easy string head See Figures 15 - 16.  Stop the engine and disconnect the spark plug wire.  Remove currently installed string head.  Open the Reel Easy String Head by depressing the latches on each side. The contents of the string head are spring loaded, so keep your other hand over the string head cover while depressing the latches.  Remove the string head cover, knob, and spool and set aside.  Place the string head on the drive shaft. Make sure the string head is fully seated.  Install the hex bolt into the opening on the drive shaft and secure using the hex-shaped opening in the knob to tighten. NOTE: Only use the knob to tighten the bolt. The use of other tools may allow overtightening of the bolt, which could damage the string head. NOTE: For the BC30, the gear head locking tool can be inserted through the slot in the flanged washer and gear head to help hold the string head still.  If removed, replace the spring into the string head and push down to seat.  Reinstall the spool. The spool should be placed so "This side out for straight shaft" is visible.  Replace the knob in the spool.  Replace the string head cover, aligning latches with openings in the string head. Press cover and string head together until both latches snap into openings securely.  Install string as described in the next section of this manual. installing string in reel easy string head See Figures 17 - 18. Use .095 in. diameter monofilament string.  Stop the engine and disconnect the spark plug wire.  Cut one piece of string approximately 25 ft. in length.  Rotate knob on string head until line on knob aligns with arrows on top of string head.  Insert one end of string into eyelet located on the side of the string head and push until string comes out through eyelet on the other side. Continue to push string through the string head until the middle section of the string is inside the string head and string outside the string head is evenly divided on each side.  Rotate the knob on the string head to wind the string. If using the CS30, knob should be rotated counterclockwise. If using the SS30 or the BC30, knob should be rotated clockwise. Wind the string until approximately 8 in. remains protruding from the string head. installing pro cut II string headTM See Figure 19.  Stop the engine and disconnect the spark plug wire.  Remove currently installed string head.  Install the string head on the drive shaft until fully seated.  Install the spool retainer and turn counterclockwise.  Install string as described in the next section of this manual. 12 - English