The BKS-Z-3400 BKS-Z-3600 9-13-14 drive burks HP commercial grade gasoline engine high pressure cleaning machine

burks BKS-Z-3400/BKS-Z-3600 Gasoline-Engine Commercial Ultra-High-Pressure Washers

High-Pressure Cold Water Commercial Washers (Gasoline Engine Power 9/13/14 HP)

17 L/min, 24.8 MPa, long-lasting and durable, strong power, one machine for many uses, professional quality.

Heavy-duty gasoline engine, direct drive; forged brass pump head with crankshaft pump; solid heat-treated stainless steel plungers with ceramic coating; German Parker double U-seals; adjustable pressure. Large side oil sight glass for quickly checking the high-pressure pump oil level. Standard 3/8" quick connector with high-pressure liquid detergent suction. The powerful gasoline engine features low-oil protection; recoil start. 5-piece quick-connect nozzle set including 0°, 15°, 25° and 40° nozzles and a brass detergent nozzle. 10 m heavy-duty steel-wire braided high-pressure hose; professional trigger gun or 20" stainless steel lance. Foldable-handle frame for easy moving and storage, with 13" pneumatic tires for better shock absorption and balance.

Technical Data

Classification and Applications of Pressure Washers

Commercial / professional grade 3000psi-4000psi (service life over 500 hours)

Suitable for everyday cleaning work where the weekly use time does not exceed 20 hours. A series of cleaning accessories provides rich cleaning capability. Widely used for high-intensity cleaning jobs such as cleaning buildings, concrete and stone floors, agricultural machinery, large terraces, garages, food processing equipment, factory buildings, swimming pools, etc.

Industrial grade (service life over 1000 hours)

Suitable for cleaning work with a weekly use time of over 20 hours. For a longer service life and greater durability, industrial-grade washers are equipped with reduction systems such as gearbox and belt reduction systems. Used for paint removal, rust removal, concrete renovation, cleaning large areas of oil stains, sewer flushing, water tank and tank cleaning, etc. Different cleaning jobs require different accessories.

Avoid Wrong Operation and Bad Habits That Increase Maintenance Costs

Wrong operation will increase the maintenance cost of the washer. Washers need regular maintenance to keep their performance stable and efficient. High-pressure water wears seals, O-rings, springs and other parts, so regular maintenance of seals, check valves and O-rings and regular oil changes will effectively extend the service life of the washer. However, it is usually wrong operation that causes the extra repair costs.

1. Running the washer without water

Running without water inlet, the dry friction of the plungers and seals will quickly damage the plungers and seals.

2. Leaving the washer in bypass mode for a long time

Bypass mode means the spray gun is closed while the washer is running; the outlet passage is closed and the water in the pump keeps circulating back and forth in the pump head under the action of the plungers, so the water temperature rises quickly. Therefore do not let the washer run in bypass mode for a long time, because high-temperature water will soften and quickly wear the seals, O-rings and plastic valve covers. So please switch off the washer after each stage of work or when leaving for a long time. To prevent the damage caused by long-time bypass running, a temperature control valve / thermal relief valve can be fitted; the device works by opening the relief valve when the water temperature reaches the opening temperature, discharging the hot water and automatically injecting cold water to cool the system. However, even a washer fitted with a thermal relief valve must not be left in bypass mode for a long time.

3. Cavitation

Cavitation is caused by air entering the pump; the air entering the pump will damage the high-pressure pump because air expands or contracts quickly. The most obvious signs of cavitation are reduced pressure and a "hammering" noise. Cavitation is caused by insufficient water supply or air intake; for example, the rated flow of the washer is 15L/min but the water source supplies only 11L/min, while the high-pressure pump still draws at 15L/min, so the shortfall drawn in is air, which causes cavitation. So make sure the flow of the water source is greater than the rated flow of the washer, and make sure the inlet pipe has no leakage.

4. Freezing

In winter, water accumulated in the pump will freeze and damage the high-pressure pump. During winter maintenance, antifreeze can be added to the pump; also, in winter use, the machine can be kept running for a few seconds after the water supply is stopped so that the accumulated water in the pump is discharged.

5. Running with no oil or a low oil level

Both the high-pressure pump and the gasoline engine need lubricating oil for the transmission mechanism, such as the crankshaft, connecting rods, bearings and plungers. Lubricating oil both lubricates and cools the parts; running with no oil or a low oil level will cause complete damage to the pump. When there is no oil, too little oil, poor oil quality, the wrong oil, or water in the oil, the parts cannot be lubricated effectively, the part temperature will rise quickly and lead to cracking and damage. So check the oil level frequently and change the oil regularly.