Ryobi RY29550 Operator's Manual - Page 14

OPERATION CHARGING A HOT BATTERY PACK When using the tool continuously, the batteries in the battery pack will become hot. You should let a hot battery pack cool down for approximately 30 minutes before attempting to recharge. NOTE: This situation only occurs when continuous use of the string trimmer causes the batteries to become hot. It does not occur under normal circumstances. Refer to CHARGING THE BATTERY PACK for normal recharging of batteries. If the charging assembly does not charge the battery pack under normal circumstances, return both the battery pack and charging assembly to your nearest Ryobi Authorized Service Center for electrical check. to install BATTERY PACK See Figure 8.  Place the battery pack in the string trimmer. Align raised rib on battery pack with groove in string trimmer's battery port.  Make sure the latches on each side of the battery pack snap in place and that battery pack is secured in string trimmer before beginning operation. TO REMOVE BATTERY PACK  Locate latches on side of battery pack and depress both sides to release battery pack from the string trimmer.  Remove battery pack from the string trimmer. OPERATING THE TRIMMER See Figure 9. 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. Always operate trimmer at full throttle. 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, disconnect the spark plug wire, and remove the grass. Prolonged cutting at partial throttle will result in lubricant dripping from the muffler. WARNING: Always hold the string trimmer away from the body keeping 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. TO ADVANCE THE CUTTING LINE String advance is controlled by tapping the string head on grass while running engine at full throttle.  Run engine at full throttle.  Tap the knob on ground to advance string. The string advances each time the knob is tapped. Do not hold the knob on the ground. NOTE: The line trimming cut-off blade on the grass deflector will cut the line to the correct length. NOTE: If the string is worn too short you may not be able to advance the string by tapping it on the ground. If so, stop the engine, and manually advance the string. To advance the cutting line manually:  Stop the engine and disconnect the spark plug wire.  Push the knob in while pulling on string(s) to manually advance the string. CUTTING TIPS See Figures 9 - 10.  Avoid hot surfaces by always keeping the tool away from your body. (Proper operating position shown in figure 9.)  Keep the trimmer tilted toward the area being cut; this is the best cutting area.  The trimmer cuts when passing the unit from left to right. This will avoid throwing debris at the operator. Avoid cutting in the dangerous area shown in illustration.  Use the tip of string to do the cutting; do not force string head into uncut grass.  Wire and picket fences cause extra string wear, even breakage. Stone and brick walls, curbs, and wood may wear string rapidly.  Avoid trees and shrubs. Tree bark, wood moldings, siding, and fence posts can easily be damaged by the string. GRASS DEFLECTOR String TRIMMING CUTOFF BLADE See Figure 11. The trimmer is equipped with a string trimming cut-off blade on the grass deflector. For best cutting, advance string until it is trimmed to length by the cut-off blade. Advance the string whenever you hear the engine running faster than normal, or when trimming efficiency diminishes. This will maintain best performance and keep the string long enough to advance properly. 10 - English