1. What are the aspects of daily maintenance of excavator?
All grease nipples and slewing bearings shall be greased every 10 days and 15 days. The butter shall be beaten twice every 4-8 hours at different angles. Each reducer shall be replaced within 520 hours for the first time and 2-3 years later. The engine must be warmed up for 10-15 minutes before it can work.
Second, hydraulic oil is divided into winter and summer
Winter oil is No. 32 or No. 46, summer oil No. 68 or No. 100, must be anti-wear hydraulic oil, the difference is high temperature in summer, high viscosity of hydraulic oil used, low temperature in winter, low viscosity of hydraulic oil used.
3. What parts of the excavator are easy to loosen?
Answer: The screws of the slewing bearing reducer and the engine are loose. It is required to apply thread glue and it must be tight and firm.
Fourth, what do you notice after parking?
Answer: You must run at low speed for 10-15 minutes before turning off the flame. First, put the stick and bucket perpendicular to the ground, and move the pilot valve a few times to relieve the pressure in the hydraulic oil system.
Fifth, what is the internal structure of the rotary reducer?
Answer: Rotary motor, motor fixing frame, one-axis transmission, Samsung frame, one axis, Samsung hoist, drive ring gear, vertical shaft.
6. What is the internal structure of the walking reducer?
Answer: Walking motor, first-class reducer, internal gear ring, Samsung frame, Samsung hoist, reducer fixing frame, half shaft, drive wheel ring gear.
Seven, how to change gear oil for rotary reducer and walking reducer?
Answer: Let go of the gear oil. After adding diesel oil, lift the car to idle for 5 minutes, then let go of the diesel oil and then add the gear oil. The gear oil should be added with double drive line No. 18, 120-9 walking reducer plus 3.5 liters of gear oil, Rotary reducer plus gear oil 3.5 liters, 70-8 walking reducer plus gear oil 7 liters each, rotary reducer plus gear oil 3 liters. 85-7 wheeled front axle with gear oil, rear axle with gear oil
8. What should be paid attention to before operation of the wheeled excavator?
Answer: Before working, the wheel excavator must level the bulldozer and the rear legs, and the front steering wheel must be level with the vehicle plate before it can work.
Nine, the comprehensive maintenance of wheel excavator is divided into several aspects?
Answer: Regularly check the looseness of the vehicle screws, the slewing bearing and the front and rear axle screw connection plates of the walking part are tightly tightened.
Ten, hydraulic oil cylinder, oil leakage?
Answer: It is strictly forbidden to terminate the hydraulic cylinder, which will lead to the early loosening of the cylinder and damage to the guide sleeve, wear of the seal ring, control of the cylinder stroke, normal wear of the seal ring, and replacement of the seal. Impurities of hydraulic oil cause damage to seals, replacement of filtered hydraulic oil
Seals.
Eleven, how to maintain the main pump for excavator work?
Answer: The hydraulic oil used first must be clean, in accordance with the use label of the season, to ensure that the oil inlet pipeline is unblocked, and air is not allowed. Regularly clean the net or replace the filter element. Water content is not allowed in the hydraulic oil. Replace the hydraulic oil according to the season. The source pump should loosen the exhaust bolt when replacing oil and refuel, to exhaust air.
