Raider RD-GBC20 User Manual page 32

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3.9. Fitting the trimmer head.
Fit the trimmer head on the output shaft. Turn the blade shaft until one of the holes in the drive disc
aligns with the corresponding hole in the gear housing. Insert the locking pin in the hole to lock the
shaft. Screw on the trimmer head/plastic blades in the opposite direction to the direction of rotation. If
the length of cord is not enough, press the button in the middle of trimmer head and pull the cord to
the desired length. If the length of cord is greater than the diameter of the protective cap, when you
start the brush cutter, cord will cut of the required length from the knife mounted on the protective cap.
3.10. Adjust the shoulder strap for the most comfortable position at working. Adjust the shoulder
strap so that the cutting attachment is parallel to the ground.
Optimised the shaft length and 35 degree bevel gear facilitates operation and allows the cutting
equipment to work parallel with the ground.