Container reach stackers are heavy equipment commonly used in ports and logistics centers. They are a type of crane used to load and unload containers, and can also be said to be a type of mobile machinery. They are mainly used for stacking containers and for horizontal transportation within docks and yards. They are particularly used for container loading and unloading at small and medium-sized ports, railway transfer stations, and highway transfer stations, and can also be used as auxiliary equipment at large container terminals.

Le gerbeur à conteneurs est un équipement lourd couramment utilisé dans les ports et les centres logistiques. Il s’agit d’un type de grue utilisée pour charger et décharger des conteneurs, et peut également être considérée comme un type de machine mobile. Il est principalement utilisé pour l’empilage de conteneurs et le transport horizontal dans les quais et les parcs de stockage. Il est particulièrement utilisé pour le chargement et le déchargement de conteneurs dans les ports de petite et moyenne taille, les stations de transfert ferroviaires et les stations de transfert autoroutiers, et peut également être utilisé comme équipement auxiliaire dans les grands terminaux à conteneurs.

Due to long-term high-load operation, various faults are prone to occur. The following are common faults and maintenance methods of container reach stackers:

1. The lifting device does not move/Le dispositif de levage ne bouge pas

Possible causes:
The emergency stop button was accidentally pressed.
The fuse of the hoist control circuit is blown.
The actuating solenoid valve is not energized (this can be determined by observing the indicator light).
Hydraulic system failure (such as oil pump damage, oil circuit blockage).
Repair method:
Check and reset the emergency stop button.
Use a multimeter to test the fuse and replace any blown fuse.
Check the power supply of the solenoid valve, repair the circuit or replace the solenoid valve.
Check the hydraulic oil circuit, clean the filter or replace the hydraulic oil.

2. The indicator light of the spreader is abnormal/Le voyant de l’épandeur est anormal

There are three common situations when the indicator light of the spreader shows abnormality:
1) The indicator light for the sling in position is not on, which may be due to a damaged bulb.
2) The indicator light of the hoist in place flashes, which may be due to improper adjustment of the distance of the in-place sensor or damage of the sensor.
3) The indicator light of the sling flashes red and green alternately. It may be that the rotary lock cylinder is not in place, causing the piston rod of the rotary lock cylinder to reciprocate when extending and retracting, resulting in the red and green lights flashing alternately.
Repair method:
Replace any defective bulbs.
Adjust or replace seat sensor.
Check the twist lock cylinder piston rod to ensure it retracts and extends normally.

3. The spreader rotates without movement or too slowly

L’épandeur tourne sans mouvement ou trop lentement

Possible causes:
The rotary motor output shaft key is cut off (“lost rotation”).
Single motor operation results in slow rotation.
Repair method:
Replace damaged key or motor shaft.
Check and repair the motor control circuit to ensure that the dual motors operate normally.

4. The telescopic chain is broken/La chaîne télescopique est cassée

Possible causes:
The chain tension is improperly adjusted.
Long-term wear or overload operation.
Repair method:
Replace the broken chain and adjust the tension (tighten it and loosen the thread by 2 to 3 buckles). When replacing the chain, first remove the oil pipe and wire in the horizontal telescopic arm guide rail; secondly, pull out the telescopic beam of the spreader horizontally, remove the dead end of the chain, and take out the chain; thirdly, cut the corresponding length of the chain according to the length of the broken part and connect it; finally, adjust the tension of the chain, tighten the chain and loosen the thread by 2 to 3 buckles. When replacing the chain, do not stack the chains together, otherwise the chain may get stuck in the telescopic arm tube and deform, causing hidden dangers of failure.
Check the chain wear regularly and avoid overloading.

5. Broken or deformed metal components

Composants métalliques cassés ou déformés

Possible causes:
Fatigue fracture (long-term alternating load).
Structural damage due to overloading or collision.
Repair method:
Welding reinforcement is performed on the broken parts (such as U-shaped plate reinforcement).
Replace damaged parts (e.g. boom, telescopic beam) and upgrade material strength.

6. Steering system failure/Défaillance du système de direction

Possible causes:
Insufficient or contaminated hydraulic oil.
Steering valve, priority valve or steering cylinder fault.
Repair method:
Check and replenish hydraulic oil and replace filter element.
Clean or replace the stuck valve core and repair the steering cylinder seal.

7. Insufficient hydraulic system pressure/ Pression insuffisante du système hydraulique

Possible causes:
Oil pump efficiency reduced.
The relief valve is set to improper pressure.
Repair method:
Replace worn oil pump.
Adjust the relief valve pressure to the standard value (such as 14MPa or 17.5MPa).

8. Maintenance suggestions/Suggestions d’entretien

Regular inspection: including hydraulic oil quality, electrical circuits, and metal component flaw detection.
Avoid overloading: Prevent metal fatigue and overloading of the hydraulic system.
Standardized operation: reduce failures caused by collision and misoperation

Summarize
As a commonly used auxiliary tool in ports and docks, container reach cranes require proper knowledge and maintenance skills to ensure their normal operation. At the same time, it is also necessary to pay attention to the daily maintenance and care of container reach cranes in order to improve their work efficiency and extend their service life.

Les gerbeurs à conteneurs sont des outils auxiliaires couramment utilisés dans les ports et les quais. Une bonne maîtrise des connaissances de base et des compétences de maintenance peut assurer leur fonctionnement normal. Dans le même temps, il est également nécessaire de prêter attention à l’entretien et à la maintenance quotidiens de la grue à conteneurs afin d’améliorer son efficacité de travail et de prolonger sa durée de vie.

How to buy   Container reach stacker maintenance related accessories at CCMIE?

If you need to buy Container reach stacker/Gerbeur à conteneurs , you can contact us. If you need to buy a second-hand Container reach stacker , you can also contact us. CCMIE provides you with comprehensive Container reach stacker.