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Preparation

2.1 Insert a hook into the hole in the front deck and lift the front deck.

2.2 Clean the sundries fallen into the steps and grooves.

2.3 Clean the handrail for fear of polluting the mechanical driving parts.

 

3.Pre-check of the electric system

3.1 Check the power supply (power wire, phase order, zero wire, earthing wire).

3.2 To check whether the connection of power supply is in accordance with the wire-connection diagram and the local regulations.

3.3 Turn on the general switch of power supply.

3.4 on the governing switches of motor and controlling.

3.5 Connect the inspection box to the controller; push the up-running or down-running button to check whether the running direction of escalator is correct. Change the two phases joints of motor to amend the running direction when necessary.

3.6 Start testing:

◆Break the connection between the inspection box and controller.

◆Start escalator with the key switch.

◆Turn the key switch to the expected running direction.

◆After starting, turn the key to its neutral position and pull it out.

3.7 Stop running check:

◆Stop running of escalator normally (soft stopping):

Push the emergency switch to realize soft stopping;

◆Stop the escalator emergently :

Emergent stopping is realized when the safety circuit is broken.

 

4.Check-up and lubrication of the mechanical components

4.1 Check the lubricating state of the step shafts and their covers in the pit of escalator,lubricate them when necessary.

4.2 When there is a 100kg horizontal force against the comb, the safety switch of the comb should be operated.

4.3 Check whether the mesh centers of steps and combs are in accordance.

4.4 Single side horizontal gap between the skirt panels and steps is about 2-4mm, and double side gap is no more than 7mm.

4.5 Check the handrail entry, the two gaps on both sides between the handrail and its guide should be equal approximately, and the handrail shouldn’t scratch the rubber cover.

4.6 Clean the dust on the surface of handrail. Firstly, dip some detergent (petrol liquid is prohibited) with duster cloth and erase the handrail surface forcibly; then erase it again with dry cloth, after that at least10 minutes dry time is needed. Talcum powder is prohibited from being used to clean the inside of handrail.

4.7 Lubricate the conveying chains.

4.8 Check the tension of the step chain, and the tension force of the two step-chains should be uniform.

4.9 The gliding guides of the steps should not scratch the skirt panel.

 

 


Date: 2015-01-02; view: 771


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