Maintenance of the self-climbing type concrete placing boom
Release date: 2015-12-24Pay attention to:
In order to guaranteeing maintenance man safety,it is necessary to build up a platform for checking and maintaining the concrete placing boom on the floor.
1. periodic inspection
1.1 Daily inspection
● Inspect if the electrical control system works normally or not before operating.
● Inspect whether the hydraulic oil level which is 1ower than the half of the oil tank or not,and the hydraulic oi1 is emulsified or not.
● Check if the hydraulic system lines leak。
● Check the direction of rotation of the pump.
● Check if the balance valve which work reliably or not.
1.2 Weekly inspection
● Check whether the connecting bolts,the end clamping plates,pins and 1ock nuts 1ooseness or not.
● Check the delivery pipes and change the pipes immediately when the thickness of the pipes is less than 2 millimeters.
Act as the following to prolong the service life after approximately 6000m3pumped volume:
Rotate the bends through180°of the delivery line.
Rotate the all delivery pipes through 120°of the delivery line
● Check whether the cotter pins of the railing drop off or not.
1.3 Monthly inspection
● Check whether the slewing limit switch worknormally or not.
● Check if the slewing reducer works abnormally.
● Tighten the connecting bolts of the tower section.
● Check the shaft coupling of the motor.
● Check the motor,the insulation resistance of the circuit,the metal shell of the electrical equipment,and the earthed resistance of the metal structure.
● Visual inspection of electrical cable,repair and change it after burn in or breakage.
● Fully check and maintain a11 the parts of the equipment including hydraulic and electrical components.
2. Lubricate
Pour grease to the mobile pins periodically.
1.Slewing supporting bearing and gear rim 2.The choke at the end of rear section of the big arm3.The choke at the linkage pin of the hydraulic cylinder of big arm and the swivel table4.The choke at the linkage pin of the mid arm and the small arm 5.The choke at the linkage pin of the small arm and the small straight link 6.The choke at the linkage pin of the hydraulic cylinder of big arm and the rear section of the big arm7.The choke at the linkage pin of the mid arm and the hydraulic cylinder of the small arm8.The choke at the linkage pin of the fore section of big arm and the hydraulic cylinder of the big arm9.The choke at the linkage pin of the hydraulic cylinder of the mid arm and the big straight link.
10.The choke at the linkage pin of the big crooked link and the big straight link.11.The choke at the linkage pin of the big crooked link and the fore big arm.12.The choke at the linkage pin of the fore big arm and the mid arm13.The choke at the linkage pin of the mid arm and the big straight link.14.The choke at the linkage pin of the hydraulic cylinder of the sma11 arm and the small crooked link.15.The choke at the linkage pin of the small crooked link and the small straight link.16.The choke at the linkage pin of the small arm and the small crooked link.17.Pipe-clip of bend pipes
3. Clean out the delivery pipes
Use the concrete pump or water pump for pumping water to clean out the delivery pipes.
Clean out the delivery pipes in proper occasion,and use the remainder concrete in the delivery line for building.The remainder concrete in 1-meterφ125 delivery pipe is about 12.3 liters.
Use the concrete delivery pump of the equipment for pumping water to clean out the delivery,pipes as follow:After pumping,open the door of the hopper of the equipment,drain away the remainder concrete,dismantle the taper pipe at the export of the hopper,clean the taper pipe,start the delivery pump oppositely to drain away the remainder concrete in the concrete cylinder,clean the hopper with water,fix the taper pipe again with 2 sponge balls in it,close the door of the hopper,pour water into the hopper and start the pumping until the sponge ba1ls are drained out from the end of the delivery line.
The method of using water pump for cleaning out the delivery pipes as follow:After pumping,dismantle the vertical pipes to drain away remainder concrete,then connect the pipes again,dismantle the taper pipe at the export of the hopper,put 2 sponge balls into the delivery line,connect the delivery line with high-pressure pipe of the water pump,fix them with pipe clamps,start the water pump and send pressurized water into the delivery 1ine until the sponge balls are drained out from the end of the delivery line.
Notice!The delivery pipes must be cleaned out in any occasion after pumping.