The operation process of installing the brush knob and gear of the multimeter
Regarding the installation and operation method of the multimeter, when installing the multimeter, you need to master the sequence, first install the brush knob, and then install the gear switch, and friends in need refer to it.
Multimeter installation brush knob and gear
The specific method is as follows:
1. Installation of the brush knob
1. Take out the spring and steel ball, put it in Vaseline oil, put the spring with lubricating oil into the small hole of the brush knob, and the steel ball will stick to the top of the spring. Never lose it.
The operation process of installing the brush knob and gear of the multimeter
2. The installation part of the brush knob on the back of the observation panel is composed of 3 brush knob fixing cards, 2 brush rotating steel positioning arcs, 1 steel ball installation groove and 1 petal-shaped steel ball rolling groove.
The operation process of installing the brush knob and gear of the multimeter
3. Place the brush knob on the panel, and pay attention to the direction of the brush placement. Use a screwdriver to gently push the steel ball into the petal groove, carefully roll it off, and press the brush knob into the fixed card evenly with your fingers.
The operation process of installing the brush knob and gear of the multimeter
4. Flip the panel to the front, gently put the gear switch knob on the small handle protruding from the round hole, slowly turn the knob, check whether the brush knob is installed correctly, you can hear "click", "click" click" positioning sound.
If you can't hear it, it means that the steel ball is lost or fell into the gap between the brush knob and the panel, the gear switch cannot be positioned, and needs to be removed and re-installed.
The operation process of installing the brush knob and gear of the multimeter
5. Gently remove the gear switch knob, gently push the handle in the small hole with your hand, and at the same time gently pull the 3 positioning cards on the opposite side by hand, the force must be light and even, so as not to break the positioning card, be careful Steel balls cannot roll off.
The operation process of installing the brush knob and gear of the multimeter
Second, the installation of the gear switch
1. After the brush knob is installed correctly, turn it to the upward position of the brush installation card, put the white line of the gear switch knob upward on the small handle of the front brush knob, and press it down.
The operation process of installing the brush knob and gear of the multimeter
2. If it is found that the white wire is in the opposite direction to the brush installation card, it must be removed and reinstalled. When removing, gently pry it symmetrically with a flat-blade screwdriver, and pry it off in the order of left, right, up, and down.
Pay attention to the force is light and symmetrical, so as not to pry it.
