HOTSY DB-2323 (01) PDF Document

To reduce the risk of injury, read all operating instructions carefully before using the HOTSY DB-2323. Always follow these safety guidelines:

General Safety:

• Know how to stop the machine and bleed pressure quickly. Be thoroughly familiar with all controls.

• Stay alert and watch what you are doing.

• Keep the operating area clear of all persons.

• Do not operate the machine when fatigued or under the influence of alcohol or drugs.

• Keep good footing and balance at all times. Do not overreach or stand on unstable support.

• Be extremely careful when using a ladder or scaffolding.

Operational Hazards:

• Risk of Asphyxiation: Use this product only in a well-ventilated area. Exhaust contains poisonous carbon monoxide gas.

• Risk of Fire/Explosion: Do not add fuel while the machine is operating. Allow the engine to cool for 1-2 minutes before refueling. Do not spray flammable liquids. Refuel outdoors, with the engine stopped, and with no ignition sources within 10 feet.

• Risk of Injection: High pressure can cause severe personal injury. Keep clear of the nozzle and do not direct the discharge stream at people.

• Electric Shock: Keep wand, hose, and water spray away from electric wiring and components.

• Kickback: Grip the cleaning wand securely with both hands before starting to prevent injury from a whipping wand.

• Airborne Particles: High-pressure spray can cause paint chips or other particles to become airborne. Wear protective eye, hand, and foot safety devices.

• Noise: This machine exceeds 85 db; appropriate ear protection must be worn.

Equipment Protection:

• Freezing: Protect the machine from freezing. Failure to do so can cause malfunction and damage not covered by warranty. Follow storage instructions.

• Water Supply: Inlet water must be clean fresh water and no hotter than 90°F.

• Pump Damage: Never run the pump dry. Do not leave the spray gun closed for longer than 1-2 minutes.

• Chemicals: Do not allow acids, caustic, or abrasive fluids to pass through the pump.

• Tires: If your model has pneumatic tires, check the air pressure before use and ensure it does not exceed a maximum of 25 PSI.

The main components of the HOTSY DB-2323 and their functions are:

• Pump: Develops high pressure.

• Starter Grip: Used for starting the engine manually.

• Spray Gun: Controls the application of water and detergent with a trigger device. Includes a safety latch.

• Detergent Injector: Allows you to siphon and mix detergents with the water stream.

• Wand: Must be connected to the spray gun. The pressure nozzle attaches to the end of the wand.

• High Pressure Hose: Connects the water pump discharge to the spray gun.

• Pump Protector: Cycles fresh cool water through the pump when recirculating water reaches 140°F to prevent internal pump damage. Water will leak from this valve if the spray gun trigger is released for more than 1-2 minutes.

• Unloader: A device that regulates pressure within the pump.

• Pressure Nozzle: Attaches to the wand to create the desired spray pattern.

• Inlet Screen: Filters water coming into the pump from the garden hose.

Follow these steps to assemble your HOTSY DB-2323:

Step 1. Attach Handle: Attach the handle to the frame. You may need to move the handle supports from side to side to align them with the frame supports.

Step 2. Secure Handle: Insert the carriage bolt through the holes from the outside and attach a nut from the inside. Tighten the nuts.

Step 3. Attach Storage Bracket: Attach the spray gun/hose storage handle and bracket to the main handle and tighten the nuts.

Step 4. Connect High Pressure Hose to Gun: Attach the high pressure hose to the spray gun. It is recommended to use teflon tape on the hose threads.

Step 5. Attach Nozzle Extension: Attach the nozzle extension to the spray gun/wand. Tighten both by hand.

Step 6. Insert Pressure Nozzle: Pull back the spring-loaded collar of the wand coupler to insert your choice of pressure nozzle.

Step 7. Secure Nozzle: Release the coupler collar and push the nozzle in until the collar clicks. Pull the nozzle to ensure it is seated properly.

Step 8. Connect High Pressure Hose to Pump: Connect the other end of the high pressure hose to the pump discharge nipple. Push the coupler collar forward until secure.

Step 9. Connect Water Source: Connect a garden hose (minimum 7.5m) to a cold water source.

Step 10. Connect Garden Hose to Pump: Check the inlet filters for debris, then connect the garden hose to the pump water inlet. CAUTION: Do not run the pump without water, as pump damage will result.

Before Starting:

1. Check Engine Oil: Ensure the machine is level. The oil level should be level with the bottom of the oil filler neck. Refer to the engine’s manual for specifics. IMPORTANT: Do not run the engine with high or low oil levels, as this will cause engine damage.

2. Check Pump Oil: Check the pump oil level using the dipstick or by observing the oil level in the oil window (if equipped). Use 30 wt. (non-detergent) oil.

3. Fill Gas Tank: Fill the gas tank with unleaded gasoline. Do not use leaded gasoline.

4. Purge Air: Turn on the water supply. Trigger the spray gun to eliminate trapped air and wait for a steady flow of water to emerge from the spray nozzle.

Starting Procedure:

5. Fuel Valve: Rotate the fuel shut-off valve to the “On” position.

6. Choke: Move the choke lever to the “Choke” or “Closed” position. For a warm engine, leave the choke lever in the “Run” or “Open” position.

7. Engine Switch: Turn the engine switch to the “On” position. On Briggs engines, move the throttle lever to the “Fast” position (shown as a rabbit symbol).

8. Pull Starter: Pull the starter grip. If the engine doesn’t start after two pulls, squeeze the trigger gun to release water pressure, then repeat the pull. Return the starter grip gently. CAUTION: Small engines may kick back. Do not hold the pull starter grip tightly in hand.

9. Warm Up: After the engine warms up and runs smoothly, move the choke to the “Run” position and set the throttle to the “Fast” position.

The HOTSY DB-2323 comes with four color-coded quick connect nozzles that provide a range of spray widths. Always engage the safety latch on the spray gun trigger before changing nozzles.

• White 40° Nozzle: Provides a wide spray for gentle rinsing.

• Green 25° Nozzle: Provides a medium spray for general cleaning and gentle rinsing.

• Yellow 15° Nozzle: Provides a narrow, high-impact spray for scouring tough surfaces.

• Black (Soap) Nozzle: This is a low-pressure nozzle used exclusively for applying detergent.

Step 1. Connect Injector: Connect the detergent injector to the discharge nipple on the machine. Then connect the high pressure hose to the injector.

Step 2. Prepare Detergent: Use a detergent specifically designed for pressure washers. Prepare the solution as required by the manufacturer and place the filter end of the detergent suction tube into the container.

Step 3. Install Black Nozzle: With the spray gun safety latch engaged, secure the black detergent nozzle into the quick coupler on the wand. NOTE: Detergent cannot be applied using the high-pressure (yellow, green, or white) nozzles.

Step 4. Apply Detergent: With the engine running, pull the trigger to operate the machine. The detergent will be drawn into the machine and mixed with water. Apply detergent to the work area from the bottom up to avoid streaking. Do not allow detergent to dry on the surface.

IMPORTANT: After each use, you must flush the detergent injection system. Place the suction tube into a bucket of clean water and run the pressure washer in low pressure for 1-2 minutes.

For the best cleaning results with your HOTSY DB-2323, follow these tips:

• Pre-rinse: Pre-rinse the cleaning surface with fresh water.

• Detergent Application: Apply detergent at low pressure. For best results, work in sections approximately 6 feet square and always apply detergent from the bottom up to prevent streaking.

• Dwell Time: Allow the detergent to remain on the surface for 1-3 minutes. Do not let it dry. If the surface appears to be drying, wet it down with fresh water.

• Rinsing: Rinse at high pressure from the top to the bottom in an even, sweeping motion. Keep the spray nozzle approximately 1 foot from the cleaning surface. Use overlapping strokes as you clean.

• Test Area: Before cleaning any surface, test the spray pattern and distance on an inconspicuous area to prevent damage.

• Painted Surfaces: If painted surfaces are peeling or chipping, use extreme caution as the pressure washer may remove the loose paint.

Follow these steps to safely shut down your HOTSY DB-2323:

Step 1. Flush Detergent System: If detergent was used, remove the suction tube from the container and insert it into one gallon of fresh water. Pull the trigger on the spray gun and siphon water for one minute to flush the system.

Step 2. Turn Off Engine: Turn the engine off using the On/Off switch.

Step 3. Turn Off Water: Turn off the water supply.

Step 4. Release Pressure: Press the trigger on the spray gun to release any remaining water pressure in the hose.

Step 5. Disconnect Garden Hose: Disconnect the garden hose from the water inlet on the machine.

Step 6. Disconnect High Pressure Hose: Disconnect the high pressure hose from the pump discharge nipple.

Step 7. Engage Safety Lock: Engage the spray gun safety lock to prevent accidental discharge.

CAUTION: Always store your pressure washer where the temperature will not fall below 32°F (0°C). The pump is susceptible to permanent damage if frozen. FREEZE DAMAGE IS NOT COVERED BY WARRANTY.

Short-Term Storage:

1. Follow the full “Shutting Down and Clean-Up” procedure.

2. Do not allow the high pressure hose to become kinked.

3. Store the machine and accessories in a room that does not reach freezing temperatures.

Long-Term Storage (more than one month):

1. Replenish engine oil to the upper level.

2. Drain all gasoline from the fuel tank, fuel line, fuel valve, and carburetor.

3. Pour about one teaspoon of engine oil through the spark plug hole. Pull the starter grip several times, then replace the plug. Pull the starter grip slowly until you feel increased pressure, which closes the valves to prevent rusting.

4. Cover the pressure washer and store it in a clean, dry, well-ventilated place away from open flames or sparks.

After Extended Storage: Before restarting, thaw out any possible ice from the pressure washer hoses, spray gun, or wand.

If you experience pressure issues with your HOTSY DB-2323, check the following:

• Insufficient Water Supply: Ensure the faucet is fully open. Use a larger diameter garden hose and check for kinks.

• Clogged Inlet Screen: Disconnect the garden hose and clean the inlet water screen.

• Air in System: Check that all pump lines, hoses, and connections are airtight. Purge the pump by turning off the machine and squeezing the trigger gun until a steady flow of water emerges.

• Obstructed Nozzle: Check the nozzle for debris. Clean it out carefully with a fine needle.

• Worn Nozzle: If pressure is low after a period of normal use, the nozzle may be worn out and require replacement.

• Frozen Components: If the machine was stored in freezing temperatures, thaw it out completely, including the hose, spray gun, and wand.

• Incorrect Engine RPM: Ensure the engine is running at the correct speed. If the RPM is too slow, contact a local dealer.

• Internal Components: The unloader valve may be faulty, or pump valves/packing may be worn or dirty. These issues may require service from a local dealer.

If the engine on your HOTSY DB-2323 is not performing correctly, consider these common causes and solutions:

• Engine Will Not Start or Stops While Operating:

– Check for low oil in the engine; the low oil shutdown feature may have been triggered. Fill with oil.

– The machine may be out of gas. Fill the fuel tank.

– There may be water in the gasoline. Drain the gas tank and fill with clean fuel.

• Engine Operates for 15 Minutes Then Stops:

– Check for insufficient gas or engine oil.

– Vapor lock may have developed due to heat. Keep the gas tank full to help avoid this.

– The fuel filter may be obstructed. Clean or replace it.

• Engine Lacks Power: The air filter may be dirty. Replace the air filter.

• Engine Falters: The choke may have been opened too soon after starting. Move the choke to a halfway position until the engine runs smoothly.

• Engine is Overloaded: The pressure nozzle may be partially blocked, or the engine throttle is set too high causing excessive pressure. Clean the nozzle or adjust the engine throttle to a lower RPM.

Leaks can occur from several places. Here is how to identify and fix them:

• Water or Oil Leaking from Bottom of Pump: A small amount of water leaking is normal. If leaking is excessive, the piston packing or oil seals may be worn and need to be replaced by a local dealer.

• Water in Pump Oil: This can be caused by water being sprayed at the machine or high humidity in the air. Change the oil and direct the spray away from the machine. In high humidity, check and change the oil more often.

• Water Leaking from Pump Protector: This happens if the spray gun has been closed with the machine running for more than 1-2 minutes, or if the water supply pressure is excessive. Open the spray gun or turn off the machine. If water pressure is too high, place a pressure regulator at the end of the garden hose.

• Water Dripping from Under Pump: The piston packing, O-ring plunger retainer, or the piston itself may be worn or cracked. Contact a local dealer for service.

• Oil Dripping: The oil seal is likely worn or damaged and should be serviced by a local dealer.

• Garden Hose Connection Leaks: Check for loose fittings and tighten them. The rubber washer inside the connection may be missing or worn; insert a new washer.

• Spray Wand Leaks: The wand may not be properly attached. Ensure the spray wand is slid into the gun and the wand collar is turned clockwise until tight. The O-ring may be broken; contact your distributor to order a new O-ring.

If your HOTSY DB-2323 is not siphoning detergent, check the following potential causes:

• Incorrect Nozzle: You must use the black, low-pressure detergent nozzle. Detergent will not be drawn if a high-pressure nozzle (white, green, yellow) is attached.

• Connection Issue: Ensure the detergent suction tube is properly and securely connected to the machine.

• Detergent Consistency: The detergent may be too thick. Dilute the detergent. For best results, use detergents made for pressure washers.

• Clogged Filter/Tube: The filter on the end of the suction tube may be clogged. Run warm water through the filter to remove debris. Also, check the suction tube itself for damage or clogs.

• Discharge Nozzle Obstruction: Check the black nozzle for any obstructions and blow it out or clean with a fine needle.

• Filter Valve Setting: If equipped, the detergent filter valve may be at its lowest setting. Set the valve to a higher setting.

Regular preventative maintenance will add many hours to the life of your HOTSY DB-2323. Perform maintenance more often under severe conditions.

NOTE: Read the engine manual for any additional maintenance or service questions.