Routine maintenance should be operated by the equipment driver or the use of the unit staff responsible for the installation and maintenance of the unit on the routine maintenance of the content of the obligation to supervise and inspect. Daily maintenance is summarized in the main content of the "cross operation method": cleaning, fastening, lubrication, adjustment, anti-corrosion. Every day before the shift, 10-30 minutes at the end of the shift, inspect the equipment parts, each part of the normal, according to the prescribed oil lubrication, pay attention to the sound of mechanical operation is normal, do a good job of cleaning and shift work to achieve the appearance of the equipment is neat and tidy, the normal operation of the purpose of the daily maintenance records and shift records should be made into a fixed form, and as a file management.
Second, the construction hoist weekly maintenance:
1. According to the operating instructions, to ensure that the daily inspection, lubrication.
2. Ensure that the pinion gear and pressure wheel are reliably fastened on the drive base plate, and also check the fixation of the drive base plate bolts.
3. Check the braking torque of the brake, refer to the manual brake torque checking requirements.
4. Check the oil level of the reducer, and replenish new oil if necessary.
5. Check the interlocking device of cage door and fence door, up and down travel and other safety protection switches.
6. Check the safety interlocking devices of all cage doors.
7. Check whether the upper and lower limit blocks of the rail frame are correctly positioned.
8. Check the cable guard of the cable guide frame.
9. Check the relative position between cable support wall and cable guide frame.
10. Check all standard knuckle and diagonal support attachment points. Also check the fastening bolts of the rack.
11. Keep motor cooling wings and mechanism clean.
12. Ensure that power cables and electrical wiring are not damaged.
13. For construction hoist with counterweight, check the adjustment and fixing of counterweight guide wheel. Check the wire rope equalization device, the overhead sheave and the counterweight wire rope bracket.
14. Check the attached wall bracket, support rods, over the bridge between the bolts, fasteners fastening situation, loose dislocation should be corrected and tightened.
Three, construction hoist monthly maintenance:
1. Check the weekly inspection program.
2. Check the wear and tear of pinion and rack, see the manual for specific requirements.
3. Check the wear of the worm gear of worm gear reducer with a plug ruler, see the manual for specific requirements.
4. Check the guide wheel wear and clearance.
Four, construction hoist quarterly maintenance:
1. Check the monthly check items.
2. Check the clearance of the ball bearings, hoist guide wheel wear. If the roller is worn, it must be adjusted or replaced. If bearings are worn replace guide wheel or bearings.
3. Drop test to check whether the braking distance of the safety speed limiter meets the specified requirements.
V. Construction hoist equipment transfer maintenance:
1. Check the coupling between the motor and worm gear reducer. And dismantle the gearbox, clean the parts and seals, replace excessive wear and deformation parts and lubricating oil.
2. Clean up and remove the rust and paint on the rusted structural parts such as cage and guide frame, and make up the reinforcement on the more serious corrosion of the stressed rods.
3. Adjust and repair the safety doors and mechanical interlocking devices.
4. Check and lubricate the wire rope and each buckle card parts, there is excessive wear and tear must be replaced.
5. Cleaning and inspection of the sky wheel frame assembly, repair or replacement of new parts.
6. Check and repair the electrical control lines and operating panel switching devices. If the line is aging phenomenon must be replaced.
7. Check and clean the drive gear and guide wheel, if there is excessive wear must be replaced.
8. Check whether the use of speed limiters expire, such as beyond the use of the period, must be sent to a professional unit with testing qualifications for testing and calibration.