How to install the excavator roller when it falls off?

There are several steps to replace the roller:

(1) After cleaning the dirt and sundries on the walking frame, park the equipment in a flat place.

(2) Loosen the pressure relief plug of the tensioning cylinder of the walking frame with a wrench, and the loosening shall not exceed 1 turn to prevent high-pressure grease from spraying out and hurting people.

(3) Support the car body with the working device (boom cylinder), lift the track shoe, and loosen the roller cover screw with a pneumatic wrench, but do not completely remove the screw.

(4) Lift the boom cylinder, lower the track shoe, support the track shoe with rollers, loosen the screws, remove the tile cover, support the car body again, and lift out the rollers.

⑤ Install the rollers according to the disassembly sequence. Roller screws should be coated with copper powder to prevent rust. After screwing it in place with a pneumatic wrench, you can increase the weight by adjusting the specified value through the weight table (torque tool).

⑥ After injecting high-pressure grease into the telescopic cylinder of the walking frame, measure the standard value when walking back and forth, and the gap at A is about10 ~ 30 mm. ..

If the screw thread can still be used without replacement, it will be very simple. Just remove the old one and replace it with a new one, and add some screw glue to the new one. If the thread of the screw is no longer useful, it will be more troublesome. Use a screw that is longer than the original screw and can have nuts, and fix it with two nuts, but it is easy to be damaged later. Preferably welding. It's best to go to the wx.5 1pj.cc specialized driver hunting market.