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Classify- Worry-free Service
- Routine Maintenance
- Frequently Asked Questions
Frequently Asked Questions
Common Problems
Regular Maintenance
Conduct regular inspection and maintenance in accordance with the following procedures
Fault Type Fault Location Common Problems Troubleshooting Methods Remarks Difficult
to
Start
Engine
Electrical
Equipment
Battery Dead/Low Power Recharge/Use Manual Starting Device Battery Electrodes Not Tightened Tighten with Special Tools Fuse Blown Replace Fuse Inside the Start Control Box Wires Loose Tighten Spark Plug Cap Fallen Off Put on the Spark Plug Cap Spark Plug Not Tightened Tighten with Special Tools Spark Plug Socket Spark Plug Burned, Fouled, or Damaged Replace Fuel
System
Fuel Tank Not Filled with Suitable Fuel Fill with Pure Gasoline of 92# or Higher Fuel Tank Switch (with Filter) Closed Open Use of Inferior Fuel (Expired or Fouled) Replace and Clean with New Gasoline Pipeline Clogged Clean/Replace Carburetor Clogged Clean/Replace Choke Lever in Improper Position Adjust the Position Appropriately Others
Insufficient Cylinder Compression Adjust the Throttle Oil Pressure Sensor Activated Check the Oil Level in the Fuel Tank Engine Governor Lever in Improper Position Adjust the Governor Lever Position Difficult
to
Absorb
Water
No
Vacuum
Formed
Suction Pipe End Not Submerged in Water Submerge Completely in Water Suction Pipe Not Tightly Connected Tighten the Suction Pipe Wrench Suction Pipe Gasket Damaged Replace Suction Pipe Cracked or Damaged Replace Vacuum Gauge Hose Cracked Replace Pump Drain Valve Open Close Vacuum Pump Connecting Pipe Loose Tighten Located Next to the Pump V-belt Damaged or Worn Replace Cannot Press Down the Vacuum Pump Handle Check if the V-belt has Fallen Off Rotor or Shaft Seized Repair Water Outlet Valve Cannot Close Completely Remove Dirt or Replace Mechanical Seal Fouled or Damaged Replace Vacuum Pump Oil Cup Empty Fill with Engine Oil Vacuum
Formed
Suction Inlet Too High Lower the Suction Inlet Height Suction Filter Clogged Remove Debris Intermittent Vacuum Level the Suction Pipe Suction Pipe End Close to Water Surface Poor
Water
Output
Pump
Suction Height Too High Lower the Suction Height Suction Pipe Too Long Shorten Filter or Suction Pipe Clogged Remove Debris Suction Pipe Damaged Check the Damaged Area and Wrap It Up Pump Inlet Cover Damaged Replace Water Outlet Valve Half Open Open Fully Impeller Clogged Remove Debris Engine
Incorrect Nozzle Diameter Select the Appropriate Nozzle Caliber Throttle Not Opened Wide Enough Open the Throttle Wider Carburetor Clogged Clean the Carburetor Regular Maintenance
Conduct regular inspection and maintenance in accordance with the following procedures
Fault Type Fault Location Common Problems Troubleshooting Methods Remarks Difficult
to
Start
Engine
Electrical
Equipment
Battery Dead/Low Power Recharge/Use Manual Starting Device Battery Electrodes Not Tightened Tighten with Special Tools Fuse Blown Replace Fuse Inside the Start Control Box Wires Loose Tighten Spark Plug Cap Fallen Off Put on the Spark Plug Cap Spark Plug Not Tightened Tighten with Special Tools Spark Plug Socket Spark Plug Burned, Fouled, or Damaged Replace Fuel
System
Fuel Tank Not Filled with Suitable Fuel Fill with Pure Gasoline of 92# or Higher Fuel Tank Switch (with Filter) Closed Open Use of Inferior Fuel (Expired or Fouled) Replace and Clean with New Gasoline Pipeline Clogged Clean/Replace Carburetor Clogged Clean/Replace Choke Lever in Improper Position Adjust the Position Appropriately Others
Insufficient Cylinder Compression Adjust the Throttle Oil Pressure Sensor Activated Check the Oil Level in the Fuel Tank Engine Governor Lever in Improper Position Adjust the Governor Lever Position Difficult
to
Absorb
Water
Water
Inlet
System
Water Tank Empty Add Water to the Water Tank Fire Hydrant Coupling in Wrong Clockwise/Counterclockwise Position Adjust the Wrench Position to Align with the Water Tank Water Inlet Pipeline Leaking Retighten the Leaking Position Foam Solution Switch Not Closed Close the Foam Solution Switch Tightly Water
Outlet
System
High-Pressure Pipe Ruptured Replace the High-Pressure Pipe High-Pressure Water Valve Closed Open the High-Pressure Water Valve Pressure Relief Valve Closed Open the Pressure Relief Valve to the Appropriate Position Regular Maintenance
Conduct regular inspection and maintenance in accordance with the following procedures
Fault Type Fault Location Cause of Fault Troubleshooting Methods Remarks Difficult
to
Start
Engine
Electrical
Equipment
Battery Dead/Low Power Recharge/Use Manual Starting Device Battery Electrodes Not Tightened Tighten with Special Tools Fuse Blown Replace Fuse Inside the Start Control Box Wires Loose Tighten Spark Plug Cap Fallen Off Put on the Spark Plug Cap Spark Plug Not Tightened Tighten with Special Tools Spark Plug Socket Spark Plug Burned, Fouled, or Damaged Replace Fuel
System
Fuel Tank Not Filled with Suitable Fuel Fill with Pure Gasoline of 92# or Higher Fuel Tank Switch (with Filter) Closed Open Use of Inferior Fuel (Expired or Fouled) Replace and Clean with New Gasoline Pipeline Clogged Clean/Replace Carburetor Clogged Clean/Replace Oil Pressure Sensor Activated Adjust the Position Appropriately Regular Maintenance
Conduct regular inspection and maintenance in accordance with the following procedures
1. Open and close slowly during use; rapid opening will generate sudden thrust, and rapid opening or closing may cause water hammer;
2. When the pressure is lower than indicated on the label, the nozzle flow rate will decrease; ensure sufficient flow rate and pressure;
3. Do not use for electrical fires, as it may cause electric shock;
4. Use fresh water or standard fire-fighting foam; salt water is not recommended. Rinse with fresh water after using foam or salt water.
Regular Maintenance
Conduct regular inspection and maintenance in accordance with the following procedures
Fault Type Fault Location Common Problems Troubleshooting Methods Remarks Difficult
to
Start
Engine
Electrical
Equipment
Battery Dead/Low Power Recharge/Use Manual Starting Device HQZW-4L Battery Electrodes Not Tightened Tighten with Special Tools Fuse Blown Replace Fuse Inside the Start Control Box Wires Loose Tighten Spark Plug Cap Fallen Off Put on the Spark Plug Cap Spark Plug Not Tightened Tighten with Special Tools Spark Plug Socket Spark Plug Burned, Fouled, or Damaged Replace Fuel
System
Fuel Tank Not Filled with Suitable Fuel Fill with Pure Gasoline of 92# or Higher Fuel Tank Switch (with Filter) Closed Open Use of Inferior Fuel (Expired or Fouled) Replace and Clean with New Gasoline Pipeline Clogged Clean/Replace Carburetor Clogged Clean/Replace Choke Lever in Improper Position Adjust the Position Appropriately Others
Insufficient Cylinder Compression Adjust the Throttle Oil Pressure Sensor Activated Check the Oil Level in the Fuel Tank Engine Governor Lever in Improper Position Adjust the Governor Lever Position Poor
Water
Output
Pump
Water Source Height Too Low Add Water to a Height of Over 20CM Suction Inlet Clogged Remove Debris Impeller Clogged Remove Debris Engine
The diameter of the nozzle is incorrect. Select the appropriate nozzle diameter; Throttle Not Opened Wide Enough Open the Throttle Wider Carburetor Clogged Clean the Carburetor -
Phone
Tel:
0575-87062288
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WeChat
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Contact Us-
Office Phone:+86-575-87062288
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After-sales Hotline:400-8585-119
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Corporate Email:hqjxzz@163.com
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Office Address:
No. 91 Xueyuan Road, Yaojiang Town, Zhuji City, Zhejiang Province
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