Replacement and installation steps of the side guard plate of the jaw crusher
The crushing chamber of the jaw crusher contains mirror image side guards, two on each side. The side guards can be replaced without removing the movable jaw wedge, front wall wedge and jaw plate. However, in the detailed disassembly steps, it is recommended Remove it and replace the side guard. The recommended tools for disassembly and assembly of the broken jaw guard include a pry bar, nylon hammer, lifting rigging and chain mobile crane, lifting tool, and 36mm combination wrench. The detailed disassembly steps are as follows:
This article illustrates the upper side guard plate as an example, as shown in the figure below: The upper and lower side guard plates (1) are installed on the frame (5) with 7 bolts (2), and each bolt has a washer ( 3) And self-locking nut (4).
In the following disassembly process, make sure that the crane can move longitudinally relative to the jaw crusher; and if the side guard is severely worn, the lifting eye will be worn or deformed. Pay attention to prevent the danger of rolling during the disassembly process; it is necessary to weld on the jaw plate , Strengthen the worn or deformed lifting holes, and the welding rod used on the welding side guard must meet the welding standards. The detailed disassembly steps are as follows:
a) Remove the upper two nuts (4) and washers (3);
b) Knock out two bolts (2);
c) Loosen the remaining two bolts (2) below, but do not remove the nuts until the sling is connected;
d) Position the hook of the mobile crane vertically above the crushing chamber;
e) Hang the lifting tool (provided with the crusher) on the hook of the mobile crane, and connect the hook of the lifting tool to the lifting hole (1) of the side guard plate;
f) Pick up the sagging part of the sling;
Table 1: Weight of side guard
Spare part name Quantity
Upper left guard plate 1
Left bottom guard plate 1
Upper right guard plate 1
Right bottom guard plate 1
Please pay attention to the weight of the side guards (see Table 1); handle the side guards carefully, the rigging should be taut, but do not lift the side guards; please stay away from the suspended load and take safety precautions.
Crushing hazard warning signs
g) Remove the last nut (4) and washer (3), and knock out the bolt (2);
note! If the side guard is attached, a crowbar should be placed between the frame (5) and the side guard;
h) Carefully lift the side guards out of the crushing chamber;
l) Place the side guards horizontally on the ground.
Next, we will introduce the detailed steps of installing the jaw breaker guard:
a) Clean the frame (5) and the corners of the crushing chamber inside;
b) Position the hook of the mobile crane vertically on the new side guard plate surface to ensure that the crane can move to the jaw crusher;
c) Hang the lifting tool (provided with the crusher) on the hook of the mobile crane, and connect the hook of the lifting tool to the lifting hole of the new side guard plate;
d) Pick up the sagging part of the sling;
e) Carefully lift the side guards out of the crushing chamber;
f) Put the side guards in place. Use bolt 2) to find the correct position;
g) Install all bolts (2), put washers (3) and self-locking nuts (4) on each bolt, do not tighten;
h) Loosen the lifting sling;
i) Remove the hook of the lifting tool from the lifting hole;
j) Tighten all nuts (4).
Pay attention to the weight of the side guard during the installation process, and handle the side guard carefully. The rigging should be taut, but the side guard should not be lifted. During the installation process, please pay attention to the suspension not to overload, and always pay attention to safety precautions.
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