What is the requirement for partial technical examination of a crane? Maintenance of truck cranes with technical training and what
Takes upon itself the maintenance and repair of cranes of any modifications. PTO overhead crane. WHAT and PTO of beam cranes. Inspection of gantry cranes, Liebherr and Potain cranes. Checking all construction equipment in your fleet.
How much does it cost to inspect construction cranes?
The price of WHAT and PTO cranes is always determined individually. We do not deceive you with bargain prices and do not mark up for every little thing.
You give a task. We count, analyze, and name a fair price. We guarantee that upon completion of the work the estimate will not increase by a penny.
PTO of cranes - how often should it be carried out?
A full technical inspection of cranes must be carried out every 3 years! Partial – once a year. Otherwise, consequences cannot be avoided - sudden breakdowns, long downtime, missed construction deadlines, client claims...
KranAvto will insure you against these troubles. Call us - and we will prepare the crane for technical maintenance, check the equipment and draw up an inspection report - in accordance with all the Rules!
How to carry out PHT of cranes?
We have thoroughly studied the crane PHE technique, so we help clients avoid the slightest problem in the operation of construction equipment.
- inspect the equipment,
- We carry out static and dynamic tests,
- We check the safety of the crane installation,
- fill out the VET certificate and other necessary documents
We travel to any address up to 300 km from the Moscow Ring Road
And this is Tver, Ryazan, Vladimir - and any cities in the Moscow region! Carry out PTO of the manipulator? Checking the crane beam? Call - we go to sites seven days a week. Required urgent repairs technology? We have a 24/7 team of mechanics!
Full technical examination of the crane
VET is carried out at least once every three years. The inspection of the manipulator crane is carried out in order to establish that the manipulator crane complies with the passport data, the rules of PB 10-257-98, the operating manual, and also that the technical supervision and maintenance of the manipulator crane complies with the requirements of the rules of PB 10-257-98.
Technical inspection is carried out by: the person responsible for supervising the safe operation of the loader crane with the participation of the person responsible for maintaining the loader crane in good condition.
During PTO the following work is carried out:
1) Inspection of the crane.
2) Static tests.
3) Dynamic tests.
When inspecting the crane, pay attention to:
a) on the condition of metal structures (OPM, column, boom, extension, handle, etc.), welded joints (absence of cracks, deformations and other defects), attachment of the manipulator to the pedestal. b) Fastening the pin axes of the hinge joints, condition fastening elements for the absence of loosening of fastenings, the presence of locking.
c) Serviceability of the hydraulic system (pump, hydraulic valves, valves, hydraulic locks, hydraulic valves, etc.), absence of leaks in the hydraulic system through connections and seals, condition of pipelines and hoses.
d) Serviceability of electrical equipment (control panel, lighting, condition of wires), control, signaling and monitoring devices (AS-OAG, pressure sensors, pressure gauge, sound signal, temperature indicator, condition of limit switches on outriggers, hydraulic valve for one-way unloading of the hydraulic system).
e) Check the serviceability of the outriggers (their visual inspection, presence of locking).
f) Check the serviceability of the hook suspension, electromagnet, and grab.
2) Static tests are carried out to check the crane's strength and load stability.
These tests are carried out when the crane is installed on a prepared horizontal platform in a position corresponding to highest lifting capacity. In this case, the arrow is installed across the path. Tests are carried out at boom radii corresponding to the highest load capacity. Raise a load 25% greater than the lifting capacity of the crane at a given boom reach to 100 - 200 mm from the platform and keep it in this state for 10 minutes.
Example. On the AGS-1Sh manipulator crane at maximum boom reach with the mechanical extension extended, using an overhead or gantry crane, a load weighing 1.25 tons is suspended from the head of the extension and held for 10 minutes. Then the load is removed, the mechanical boom extension is removed, the handle is lowered perpendicularly down and a load weighing 4.0 tons is hung on the head of the handle extension and also held for 10 minutes. The load should not fall onto the platform. Then the crane is inspected. They check for cracks in the metal structure, deformations, and leaks in the hydraulic system.
3) Dynamic tests carried out to check the operation of all mechanisms and brakes of the crane. During dynamic tests, a load is lifted 10% greater than the load-carrying crane's load capacity at the maximum boom reach (for the AGS-1Sh loader crane - 1.1t) and it is used to carry out 3-fold operations of all operations of the loader crane. In this case, the mechanisms must work properly, the boom, arm, boom extension and arm must move without jerking.
If everything is normal, then the person responsible for supervising the safe operation of the loader crane makes an entry in the passport for the loader crane about the maintenance and its next date. A stencil of the next PTO is placed on the metal structure of the crane.
Technical examination of the crane allows us to determine its condition for compliance with the rules of GosgorTekhnadzor and the documentation issued during registration. During the inspection, the date and results of the inspection are recorded in the crane passport. Technical examination can be either full or partial. A full technical inspection of cranes is carried out at least once every three years. Partial - at least once a year.
The Mashzavod-Service company carries out major repairs and maintenance of truck cranes, aerial platforms, hydraulic manipulators with Full and Partial technical inspection, and also installs and repairs safety devices.
A full survey is an inspection that includes static and dynamic testing. An extraordinary full technical inspection is carried out after installation caused by the relocation of the crane to a new location, as well as after reconstruction of the crane, overhaul lifting mechanism, changing the hook of the hook suspension, repairing metal structures with replacing design elements or assemblies.
Partial inspection - inspection, without static and dynamic testing. After replacing worn cargo, boom or other ropes, as well as after re-recording the ropes, the Rules require a partial inspection to be carried out to check the correctness of the reeving and the reliability of fastening the ends of the rope, as well as the tightening of the ropes with a working (nominal) load.
The purpose of the inspection is to check the condition of the crane and its mechanisms. During the inspection, the operation of the electrical equipment and mechanisms of the crane, safety devices, brakes and control devices, lighting, alarms, metal structures of the crane, the hook and its suspension parts, ropes and their fastenings, blocks, axles and their fastening parts, as well as boom suspension elements are checked; control whether the crane is installed correctly, what condition the crane tracks are in, whether they are grounded, whether the mass of ballast and counterweight corresponds to the values specified in the crane passport.
The purpose of the static test is to check the crane's strength and load stability. Static testing is carried out under a load exceeding the crane's lifting capacity by 25%. To do this, the load raised to a height of 200 mm is held for 10 minutes. After lowering the load, inspect the lifting mechanism and check the metal structures of the crane for the absence of residual deformations. If the crane has several load characteristics, the test is carried out at flights corresponding to the most stressed state of the mechanisms, metal structures, ropes and the least stability of the crane,
The purpose of the dynamic test is to check the operation of the crane mechanisms and their brakes. Dynamic tests are carried out with a load exceeding the crane’s lifting capacity by 10%. It is allowed to carry out dynamic tests with a working (nominal) load. During dynamic testing, the load is repeatedly raised and lowered, as well as the operation of all other crane mechanisms is checked when moving this load.
The results of the technical examination are entered into the crane passport indicating the date of the next examination. When inspecting a newly installed crane, it is written in the passport that the crane was installed in accordance with the Rules of GosgorTekhnadzor, operational documentation and has passed the tests.