1. After the new machine is working 250H, the fuel filter and the additional fuel filter should be replaced; check the clearance of the engine valve.
2. Daily maintenance; check, clean or replace the air filter; clean the inside of the cooling system; check and tighten the track plate bolts; check and adjust the track tension; check the intake heater; replace the teeth; adjust the bucket clearance; Front window cleaning fluid level; check and adjust air conditioning; clean the cab floor; replace the breaker filter (optional).
When cleaning the inside of the cooling system, after the engine is fully cooled, slowly loosen the water inlet cover to release the internal pressure of the water tank before releasing the water; do not perform cleaning when the engine is working, the high-speed rotating fan may cause danger; when cleaning or replacing the cooling When parking, park the machine on a level surface; replace the coolant and corrosion inhibitor. The ratio of antifreeze to water is as specified in Table 4.
Coolant type cooling system internal cleaning and replacement cycle anti-corrosion replacement cycle
AF-ACL antifreeze (super antifreeze) every 2 years or every 4000h every 1000h or when replacing coolant
AF-PTL antifreeze (long-acting antifreeze) every year or 2000h
AF-PT antifreeze (winter type) every 6 months (added only in autumn)
Table 4 Mixing ratio of antifreeze to water Ambient temperature °C/capacity L -5 -10 -15 -20 -25 -30
Antifreeze PC200 5.1 6.7 8.0 9.1 10.2 11.10
PC220 5.4 7.0 8.4 9.6 10.7 11.65
Water PC200 17.1 15.5 14.2 13.1 12.0 11.10
PC220 17.9 16.3 14.9 13.7 12.6 11.65
3. Excavator rental http: Check items before starting the engine. Check the liquid level of the coolant (add water); check the engine oil level, add oil; check the fuel level (fueling); check the hydraulic oil level (plus hydraulic oil); check the air filter is blocked; check the wire; Check that the horn is normal; check the lubrication of the bucket; check the water and sediment in the water separator.
4. Every 100 maintenance items. Boom cylinder head pin; boom pin; boom cylinder rod end; arm cylinder head pin; boom, stick connecting pin; arm cylinder end; bucket cylinder head pin ; half rod connecting rod; bucket, bucket cylinder rod end; bucket cylinder head pin; arm linkage pin; check the oil level in the swing mechanism box (add oil); from the fuel tank Drain water and sediment.
5. Every 250H maintenance project. Check the oil level in the final gearbox (plus gear oil); check the battery electrolyte; replace the oil in the engine oil sump, replace the engine filter; lubricate the slewing ring (2 places); check the tension of the fan belt and check The tension of the air conditioner compressor belt is adjusted.
6. Maintenance items every 500h. At the same time, every 100 and 250H maintenance items; replace the fuel filter; check the height of the rotary pinion grease (plus grease); check and clean the radiator fins, oil cooler fins and cold suspect fins; replace the hydraulic oil Filter element; replace the oil in the final gearbox (only for the first time at 500h, once 1000h later); clean the air filter inside and outside the air conditioner system; replace the hydraulic oil vent filter.
7. Maintenance items per 1000h. At the same time, every 100, 250 and 500h maintenance items; replace the oil in the swing mechanism box; check the oil level of the damper housing (return oil); check all the fasteners of the turbocharger; check the turbocharger rotor The clearance; check and replace the tension of the generator belt; replace the anti-corrosion filter; replace the oil in the final transmission.
8. Maintenance items every 2000h. First complete maintenance items for every 100, 250, 500 and 1000h; clean the hydraulic tank filter; clean and check the turbocharger; check the generator, start the motor; check the engine valve clearance (and adjust); check the shock absorber.
9. Maintenance above 4000h. Increase the inspection of the pump every 4000h; increase the item of hydraulic oil replacement every 5000h.
10. Long-term storage. When the machine is stored for a long time, in order to prevent the piston rod of the hydraulic cylinder from rusting, the working device should be placed on the ground; the whole machine should be washed and dried and stored in a dry indoor environment; if it is limited by conditions, it should be stored outdoors. The machine is parked on a well-drained concrete floor; fill the fuel tank before storage, lubricate all parts, replace hydraulic oil and oil, apply a thin layer of butter on the exposed metal surface of the piston rod of the hydraulic cylinder, and remove the negative terminal of the battery, or Remove the battery separately and store it; add an appropriate proportion of antifreeze to the cooling water according to the minimum ambient temperature; start the engine once a month and operate the machine to lubricate the moving parts while charging the battery; turn on the air conditioning and cooling operation for 5-10min.
Littrow prisms feature 30°, 60°, and 90° angles .30° - 60° - 90° Littrow Dispersion Prisms can be used for a variety of applications. Uncoated littrow dipersion prisms are used to disperse light into its component spectrum. Coated littrow dipersion prisms are used to deviate the line of sight by 60°.
Dispersion Prisms (Uncoated)
Collimated white light enters into the A-C surface of the prism, is reflected at the hypotenuse surface, and then dispersed into its component spectrum at the B-C surface. Although Littrow prisms produce narrower dispersion than equilateral prisms, Littrow prisms are typically less expensive.
Beam Deviation Prisms (Coated)
Incident light enters into the aluminum coated B-C surface of the prism at the nominal angle and returns back using the same path. In spectrum dispersion applications utilizing white light, the resolution performance of Littrow prisms is equal to equilateral prisms since the optical path length through the glass substrate is the same distance round-trip. Additionally, light entered into the A-C surface will reflect twice inside the glass substrate before being emitted through the hypotenuse surface at 60°.
Dispersion Prism,Optical Dispersion Prisms,Beam Deviation Prisms,Inked Dispersion Prism
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