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5 Maintenance and Operation
It is recommended to inspect the following items every three months:
Screw looseness
Open the upper cover of the Barrier, and control the barrier arm up and down to inspect
whether the screws of the spring rod are loose and whether the retainer rings of the
connecting rod are in place. If any of them is not in place the barrier arm will fall off and
even smash vehicles. If the screws are loose, first cut off the power, manually tighten the
screws, and then power on.
Screw looseness Figure 5-1
Table 5-1 Description of screw looseness
No. Description No. Description
1 Driven rocker arm
5 Connecting rod
2 M12 screw 6 M10 screw
3, 7
Retainer ring 8 Driving rocker arm
4 Spring rod
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Damage of cushion rubber gasket
Open the upper cover of the Barrier, and control the barrier arm up and down to check
whether the cushion rubber gaskets are damaged when they are being impacted. Remove
damaged cushion rubber gaskets and replace them with new ones.
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