How to Check the Weak Crankshaft of Diesel Generator Set

Crankshaft is one of the main components of the diesel generator set. Its function is to collect the work done by each cylinder of the diesel generator and output it in the form of rotary motion. When the diesel generator set is started, sometimes users will find that the crankshaft will not rotate at all times or rotate slowly. This phenomenon of weak crankshaft operation will cause the diesel generator set to fail to enter the automatic operation state, affecting the normal use of the diesel generator set, Based on years of maintenance experience, Dingbo Power suggests that you can check the cause of the fault from the following aspects.

1. First, check whether the starting battery of diesel generator set has sufficient power.

2. Check the contact between the brush of diesel generator set and the commutator (or commutator). Under normal conditions, the contact surface between the bottom surface of the diesel generator brush and the commutator shall be more than 85%. If the technical requirements are not met, replace the brush with a new one.

3. Check the commutator (commutator) for burning, abrasion, scratches, pits, etc. If there is much dirt on the commutator surface, clean it with diesel or gasoline. If there is serious burning, scratch and wear, resulting in the surface is not smooth or out of round, repair or replace according to the situation. During repair, the commutator can be machined with a lathe and polished with fine emery cloth.

4. Check the working surfaces of the movable contacts and the two static contacts inside the electromagnetic switch of the generator. If the movable contacts and the static contacts are burnt and cause the starter to run weakly, the movable contacts and the static contacts can be smoothed with fine emery cloth.

When encountering the condition that the crankshaft of the diesel generator set is weak after starting, the user can go in for self inspection according to the above methods. In addition to the condition that the crankshaft of the diesel generator set is weak, the common damage forms of the crankshaft of the diesel generator set include journal wear, cracks, burns, bending or fracture. Different conditions will have different effects on the operation of the diesel generator set. When encountering the fault phenomenon that cannot be handled by the user, Please contact the professional diesel generator set maintenance manufacturer in time.

If you have purchasing plan of diesel generator set, please contact us by email dingbo@dieselgeneratortech.com, we will reply you at any time.