Introduction
VEVOR is committed to providing tools at competitive prices. The terms "Save Half" or "Half Price" represent an estimate of potential savings compared to major brands and may not apply to all product categories. Customers are advised to verify savings at the time of purchase.
Product Overview
This manual provides operating instructions, installation criteria, and maintenance guidelines for the VEVOR Pressure Washer Pump, models KXD1810G and KXA1810G.
Pump Models:
- KXD1810G: Horizontal shaft pump.
- KXA1810G: Vertical shaft pump.
For product questions or technical support, contact: CustomerService@vevor.com
This is the original instruction manual. VEVOR reserves the right to interpret its content. Product appearance may vary. VEVOR may update technology or software without prior notice.
General Information
Purpose of the manual: To provide operating instructions and criteria for installing, using, and maintaining the pump. The original instructions are supplied in English, with other languages available as required. The manual is intended for skilled and trained operators. The manufacturer may amend the manual, except for safety-related information. Installation must comply with this manual, statutory requirements, and local regulations. Technical instructions are confidential.
Safety Symbols:
- ⚠️ Danger-Warning: Identifies information or procedures where failure to comply may constitute a serious threat to health and safety.
- ⚠️ Caution: Identifies information or procedures where failure to comply may constitute a threat to health and safety or cause damage.
- ℹ️ Information: Identifies useful and important information or procedures to bear in mind.
Technical Information
Product Specifications and Packing List
| Specification | KXD1810G | KXA1810G |
|---|---|---|
| Working Pressure | 3100 PSI | 3100 PSI |
| Gun Closing Pressure | 3400 PSI | 3400 PSI |
| Factory Set Pressure | 2300-2400 PSI | 2300-2400 PSI |
| Matching Horsepower | 6.5-7/HP | 6.5-7/HP |
| Maximum Flow | 2.5 GPM | 2.5 GPM |
| Adaptive Model | 196-230CC | 196-230CC |
| Packing List | 1 x Pressure Washer Pump; 1 x Siphon; 3 x Bolts; 1 x Shaft Key; 3 x Flat Pads; 3 x Spring Washers; 1 x Manual | 1 x Pressure Washer Pump; 1 x Siphon; 4 x Bolts; 1 x Shaft Key; 4 x Flat Pads; 4 x Spring Washers; 1 x Manual |
Technical Data
The pump's intake circuit requires a filter with a capacity at least twice the pump's delivery rate, ensuring no restrictions or head losses. Recommended filtration is 50-80 mesh. Maximum intake vacuum is 0.25 bar.
Environmental Operating Limits
The pump operates correctly between 10°C and 40°C with a relative humidity of 80%.
Note: To match engines with different power, the factory set pressure may be lower than the rated maximum. Adjust the pressure limiting valve to increase pressure.
Pressure Adjustment: Turn clockwise to increase pressure. Adjustment tools: 2.5 mm Allen wrench and 17 mm open-end wrench.
Operation Notice
1. Prepare
Before use, connect the outlet pipe, inlet pipe, and water absorption filter. Ensure fasteners and pipe joints are secure. Connect inlet and outlet pipes to the pump and install a filter (minimum 40 mesh/inch) at the inlet to prevent debris.
2. Adjust the Pressure
The pump is factory-set to the rated pressure. If lower pressure is needed, turn on the pressure washer gun and use the pressure regulating tool to adjust the screw while spraying until the desired pressure is reached.
⚠️ Danger-Warning: Do not aim the spray gun at people, animals, or equipment!
3. Precautions for Use
Do not exceed the maximum pressure to avoid pump overload. The pump has an internal backwater structure. If the water is shut off, operation time should not exceed 90 seconds. If it exceeds 2 minutes, shut down the equipment. Minor oil or water leakage (up to 1 ml/min or 10 drops/min) is normal.
4. Applicable Occasion
This pump is suitable for high-pressure cleaning and various commercial or civil high-pressure applications.
Operation Details
5. Medium and Temperature
The conveying medium is clear water. The highest water inlet temperature should not exceed 40°C. For continuous long-term operation, a booster pump is recommended. The booster pump's rated flow should be at least twice the main pump's, with an output of 2-3 bar. For other media or higher inlet temperatures, contact VEVOR personnel.
6. Maximum Flow Rate and Maximum Pressure
The flow and pressure values in the technical table represent the pump's maximum performance. Do not exceed the set rotational speed and pressure values.
7. Power Selection
The KX series pump is driven by a gasoline engine. Select an engine with a power value higher than the pump's set parameters to ensure optimal performance.
Misuses
- Do not use for drinking water, human consumption, or pharmaceutical products.
- Do not use in potentially explosive atmospheres.
- Do not use with flammable, toxic, or corrosive liquids, or liquids with unsuitable density.
- Do not use liquids at temperatures higher than specified in the technical data.
Residual Risks
Even with safety compliance, residual risks exist. Thermal hazard: The pump may reach high temperatures during operation. Installation designers must account for this and provide appropriate measures and warning signs.
Maintenance and Maintenance
1. Idle Pumps and Water Pipes for Long Periods
- Run the pump with clean water for a few minutes.
- After turning off the water source, run the pump for 10 seconds to empty water and prevent scale.
- Blow-dry the pump with compressed air.
- Take protective measures to avoid environmental impact.
- Run with tap water for 2 minutes until the gun is empty. If no water is present, stop and check.
Notes:
- When using a gasoline engine, check the oil quantity before each start.
- If pump performance significantly reduces, maintain it immediately.
- Continuous working time, water temperature, and water cleanliness affect performance; adjust maintenance accordingly.
2. Inspection and Repair
- Regularly check connection parts for looseness.
- Minor oil or water leakage from the moving seal (up to 1 ml/min or 10 drops/min) is normal. If leakage exceeds this, replace the oil or water seal.
Safety Information
General Safety Rules
Most workplace accidents result from carelessness or failure to follow safety rules. Accidents can be avoided by predicting causes and exercising care. Operators must read and understand the manual and installation design details. Do not tamper with safety devices, as this poses serious threats. Do not release pollutants. Dispose of waste according to regulations. Adopt appropriate safety measures before any procedure.
Installation Instructions
Safety Recommendations for Installation
Take all precautions for safe, risk-free installation. Consider all installation phases, mounting points, energy transmission, and safety devices required by regulations.
General Guidelines on Water Supply Connection
Water supply can be connected via:
- Mains water supply.
- Tank (gravity-feed).
- External pump (force-feed).
Requirements for all connections:
- Use a crush-proof hose of suitable diameter for the intake connection.
- Ensure no restrictions or kinks in the hose.
- Install a suitable filter at the pump intake.
- Seal all connections to prevent air suction.
- Connections and pipes must be suitable for operating pressure and delivery rate, complying with regulations.
- Install a relief valve (by-pass valve) downstream of the pump for operating safety.
Further Installation Requirements
- The relief valve dump line must not connect to the pump intake line.
- Install a pressure damper downstream to minimize water hammer effect.
Connection to the Mains Water Supply
The mains water system must have a flow rate twice the pump's rated delivery rate and a pressure of 2-3 bar.
Instructions for Use
Safety Recommendations for Use
Perform necessary safety checks before start-up. In case of leaks from pressurized pipes, stop the pump immediately and fix the cause. Do not operate the pump beyond its specified limits. If shutting down in temperatures near 0°C, run the pump without water for 10 seconds with the delivery pipeline open to empty the system and prevent ice formation.
Maintenance Instructions
Safety Recommendations for Maintenance
Before maintenance, depressurize the water system and isolate the pump from energy sources. After work, check for any tools or materials near moving parts. Replace worn components with original parts and recommended lubricants. Dispose of worn parts and lubricants according to regulations. Perform routine maintenance as specified.
Inspecting Pump Mounting
Check that pump fixing screws are tight. Tighten if necessary using the specified torque.
Inspecting Connections and Pipes
- Inspect for leaks: Tighten connections to fix minor leaks. If intake pipeline connections leak, seals must be repaired.
- Inspect hoses: Replace hoses showing signs of aging, breakage, swelling, or rubbing.
Inspecting the Filter
If the filter cartridge is fouled or damaged, consult the filter manufacturer's instructions for restoration.
Warning: When replacing water seals, apply grease to the plunger rod. Always use original accessories during maintenance.
Debugging
| Problem | Cause | Remedy |
|---|---|---|
| Pump does not reach the specified pressures | Pump sucking air | Restore the tightness of the intake line |
| Intake flow rate insufficient | Increase the size of the intake pipelines | |
| Remove any kinks from the pipes | ||
| Increase the filter capacity or clean the filter cartridge | ||
| Increase the rpm to the rated speed | ||
| Worn intake and delivery valves | Replace the valves(1) | |
| By-pass valve seat worn | Replace the valve | |
| Worn gaskets | Replace the gaskets(1) | |
| Unsuitable, worn nozzle | Replace nozzle | |
| Irregular variations in pressure | Worn intake and delivery valves | Replace the valves(1) |
| Valves blocked by dirt | Clean the valves(1) | |
| Air being sucked into a system | Restore the tightness of the intake pipeline connections | |
| Worn gaskets | Replace the gaskets(1) | |
| Valves jammed | Replace the valves(1) | |
| By-pass valve malfunction | Replace the by-pass valve | |
| Vibrations on pipes | By-pass valve dump line is too small | Increase the size of the by-pass valve dump line |
| Pressure damper flat | Restore pressure damper to correct inflation pressure | |
| Pressure drop | Pump sucking air | Restore the tightness of the intake line |
| Nozzle worn | Replace nozzle | |
| Worn intake and/or delivery valves | Replace the valves(1) | |
| Valves blocked by dirt | Clean the valves(1) | |
| By-pass valve seat worn | Replace the valve | |
| Worn gaskets | Replace the gaskets (1) |
(1) Operations that must be carried out at an authorized service center.
Troubleshooting
| Problem | Cause | Remedy |
|---|---|---|
| Pump noisy | Air being sucked into the system | Restore the tightness of the intake pipeline connections |
| Intake and/or delivery valve springs broken or collapsed | Replace the valves (1) | |
| Valves blocked by dirt | Clean the valves (1) | |
| Worn bearings | Replace the bearings (1) | |
| Intake liquid temperature too high | Reduce liquid temperature | |
| Pump overheating | High pump operating pressure | Reduce the pressure to the rated values |
| Drive belts too taut | Restore correct belt tension | |
| Pulley or drive coupling alignment poor | Restore the correct alignment | |
| Water in oil | Guide piston gaskets worn | Replace the gaskets (1) |
| High humidity percentage in air | Change the oil twice as often (as stated in the "Routine Maintenance" table) | |
| Oil leaks from dump lines underneath the pump | Worn gaskets | Replace the gaskets (1) |
| Worn pistons | Replace the pistons (1) | |
| Oil leaks from dump lines underneath the pump | Guide piston gaskets worn | Replace the gaskets (1) |
(1) Operations that must be carried out at an authorized service center.
General Information
After-Sales Service Procedures
To request after-sales service for pump malfunction or failure, contact your nearest service center or the manufacturer. When requesting service, provide the pump's data plate information and the problem description.
Note: Minor changes to numbers in this manual may occur without prior notice.
Made In China
Contact Us â Official VEVOR Support
