Assessments - 3, GPA: 4.3
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During grass cutting. firmly hold the machine to allow easy, controlled handling 4. Never strike or tap objects with the nylon cutting headicutter blade Idle adjustment The nylon cutting head should not run when the throttle lever is fully released If necessary. adjust the idle rpm using the idle adjusting screw (Fig 24). I Idle ad!ilsiing screw Fig 24 USE THE PROPER PROTECTOR FOR THE NYLON CUTTING HEAD OR CUTTER BLADE AS SHOWN BELOW STRING TRIMMER RBC253 N y lor1 c U "i r q head Protec!or for nylon cutting head Fig 25 _ - BRUSH CUTTER RBC252 Star blade Protecroi i , j r P i l t a i cutter blade 1 Grass-pasture Fig 26 To meet the applicable safety provisions, only t h e tool/protector combination as indicated in the table must be used. Be sure to use genuine MAKITA cutter blade or nylon cutting head. - CAUTION: - . The appropriate protector must always b e installed, for your own safety and in order t o comply with accident-prevention regulations. Operation of t h e equipment without t h e protector being in place is not permitted. 12 DAlLY CHECK-UP AND MAINTENANCE cover Fig. 27 0 6 mm - 0 7 mm (0024' - 0028") I Fig. 29 , I Sponge element - FIY 28 I x I Fig. 30 1 . Before operation, pay particular attention to the tightness of the nylon cutting head. Re-tighten the ,~yIc:~ cutting head if necessary (every 8 hours or daily). 2. Check for clogged cooling air passage and cylinder fins. Clean them if necessary (every 8 hours or da!ly) 3. Clean the air cleaner every 8 hours or daily. using the following procedure: i). Remove the air cleaner cover. Clean the sponge element and remove any excessive dust or dirt adhering to the cleaner (Fig. 27 and 28). A clogged air cleaner may make it difficult or impossible to start the engine or to increase the engine rotational speed ii). Re-install the sponge element around the ribs of the air cleaner case. 4. Check the spark plug every 8 hours or daily. The gap between the two electrodes of the spark plug should be 0.6 to 0.7 mm (0.024" to 0.028"). If the gap is too wide or too narrow, adjust it. If the spark plug is clogged with carbon or fouled, clean it thoroughly or replace it (Fig. 29). 5. Apply grease (SHELL ALVANIA No. 3 or equivalent) to the gear case through the grease hole every 30 hours (Fig. 30). 6. Clean the muffler exhaust port every 50 hours or monthly. 7. Check the fuel filter. If clogged, replace it with a new one every 50 hours or monthly. 8. Replace the fuel lines every 200 hours or yearly. 9 Overhaul the engine eyery.200 hours or yearly 10 Replace the packing andgaskets with new ones every time the engine is reassembled - 13 i STORAGE When storing the machine for a icng time drain the fuel from the fuel tank and cdrbLretor as follows ' 1 2 3 Drain all fuel from the fuel tank Gently push on the primer pump repeatedly i i n t r l all fuel IS expelled out of the primer pump Properly dispose of the fuel in accordance with all local laws Remove the spark aluy and add a few drops of oil into the spark plug hole Then pull the starter geMy to assure that dn oil ;ilm coats the engine inside, then insert and tighten the S D k~ d u g Clear or olow any dirt or d u s t from the nylon cutting head and engine housing wpe them with an oil-immersed cloth and store the machine in a dry location REASSEMBLY 1NSTRUCTlONS Brush Cutter RBC2.52 and String Trimmer RBC253 Reassembling t h e drive s h a f t and t h e engine. The shaft and the engine on this machine have been assembled in the factory. If you remove the shaft (example, for maintenavce) carefully reassemble it as shown be I ow: 1 . Loosen the screws M5x18 and insert the drive shaft into the holder case (Fig. 31). Note: i ) . Always inserr the drive shaft into the holder case fully (approx. 60mm; 2-3/8"). If the inner shaft resists full insertion of the drive shaft, t r y to insert it again while slightly rotating the siqport washer on the gear case. i i ) . 5~2c aiitio~isn ot to allow the switch cords to !:;: ;jinih;d between the holder case and the gt1i end. 2. After making scire that the drive shaft is installed fully and properly. tighten the screws M5x18 to secure the drive shaft. Connecting t h e wires (String Trimmer only RBC253) 1 . Insert the nipple of the throttle wire through the square hole in the grip until it fits into an inner square hole in the moving part which is inside the grip. The nipple should move when the throttle lever is squeezed (Fig. 32). Note: Squeeze the throttle lever to make sure that the throttle wire moves smoothly. 2. Connect the two switch wires to the engine wires by inserting one into the other. 3. Cover the throttle wire and switch wires with split tubing. _No-te: It is easier to install the split tubing if the bullet connectors are partially pushed into the motor cover to remove slack from the wires (Fig. 33). j ~ I I I I ~ Hoidsr case Fig 31 i- 1 . Nipple of throttle wire Fig. 32 Fig. 3: 14 INSTRUCTIONS FOR USE OF THE CUTTER BLADE safety instructions 1 . Read this section carefu...
Este manual também é adequado para os modelos :Ferramentas para Jardim - RBC253 (2.56 mb)