Start Fail. The fire pump does not start. Troubleshooting

Greetings! Today our fire pump does not start; the “Start Fail” signal is displayed on the motor controller. The Reset button does not reset the error.

We open the starter panel, open the fire pump start-up and operation circuit, and look for the “Start Fail” signal. The motor controller produces this signal in many cases.

The crane hook goes up slowly. The cargo crane is not working. Troubleshooting

Greetings! The hook of the cargo crane goes up very slowly. There is no accompanying information or prompts from the automation.

In this article, let's figure out what this problem is and how to fix it. First of all, you need to understand that we are only interested in the section of the circuit that is responsible for the “hoist up” hook command (not the jib). 

General Directions on Replacement of Faulty Components

Prior to replacing faulty components and adjusting new ones in compliance with the circuit requirements, apart from general acquaintance with the principle of operation and the design of separate components and the unit as a whole, it is required to analyze thoroughly the arrangement of separate parts in the unit, their fastening and accessibility on the sample.

When eliminating the faults detected, the units should be disassembled only in case of actual necessity.

When replacing the faulty components or adjusting the units, it is required to use only the appropriate tools, i. e. all nuts and bolts should be turned out and in by the proper size box spanners or flat keys, and all screws — by screwdrivers corresponding to the sizes of the heads and slits.