NISSAN QX-35 Engine Pump User Manual

NISSAN QX-35 Engine Pump

PREFACE

Dear users:
Thank you very much for purchasing engine pump. Before using, please read this instruction manual carefully to know well about the machine’s performance, so as to operate the machine safety and correctly. Please keep carefully to consulting it later. Transfer or lend the instruction manual following the machine if transferring or lending this machine. Interpret receiver fully if necessary so as not to damage the machine or be injured because of incorrect operation. By the way, due to changes of specifications, all details of your machine may not agree with this manual. Please understand accordingly.

Thank you again for having choosed our products.

MAIN SPECIFICATIONS

P U M P

| Suction port diameter| 25mm
Discharge port diameter| 25mm
Discharge(Max.)| ≥8m3/h
Total water head (Max.)| 30m
Suction water head (Max.)| 8m
Self-suction time(3m)| ≤80s
SHAFT SEALANT| Mechanical seal(ceramic carbon)
E N G I N E| Type| Air-cooled 4 stroke engine
Model| 140F
Power(Max.kW)| 0.9
Total displacement| 37.7cc
Way of ignition| Electronic ignition (CDI)
Ignition system| Transistor magneto
Fuel applicable| Four-stroke engine oil(100ml)

Specifications are subject to change without notice.

PREPARATIONS PRIOR TO OPERATION

Inspection

1. Check every part, such as fuel tank cap, spark plug, etc., to confirm that they are not loose nor have fallen off.

2. Make sure that cooling air inlet and outlet are not clogged with dirt or dust. A clogged air passage will overheat the air-cooled engine during operation.

3. Take notice of air cleaner. If it is stained, conduce to irregular service and addition of fuel-consumption.

4. Check spark plug. If it is stained, fully clean the spark plug and adjust spark plug gap.
   (An appropriate spark gap is 0.6 to 0.7mm.) Installing pump

5. Install your pump at a flat place where is as near as the water source.

6. Remove self-suction plug and pour water in your pump until water overflows. After that tighten the plug firmly.

7. Fully tighten self-suction plug, suction hose and others connections. If they are loose; air will enter into your pump, which may not self-suck.
   Fuel supply

8. Pour the clean fuel to the fuel tank.

9. Fuel is a mixture of branded 70 octane or higher gasoline and approved two-cycle engine oil, the mixture ratio is 40～50:1.Ensure gasoline and oil are of good quality.

10. Don’t refuel your pump without completely stopping engine. Refueling during operation involves the possibility of catching on fire.

STARTING

Never start your pump without any water there in.

1. Move the fuel cock to the open position. Move the choke lever to the closed position.

2. Move the throttle lever to the starting position.

3. Pull recoil starter at a sharp stroke.
   Never pull the entire rope or never let the rope return by freeing the rope.

4. Once engine has fired, move choke lever gradually to the open position.
   If fuel sucked in too much, close fuel cock and fully open throttle lever and choke lever.Then pull the recoil starter.

5. After engine has started confirm the water in suction hose rises

6. up to pump and adjust the quantity of water by opening throttle lever.
   Pump may fail to suck up water initially, if a valve connected on the discharge side is closed or hose is doubled.

PRECAUTIONS IN OPERATION

• Should water fall short during operation, engine should be stopped immediately.
  Running your pump with no water in it will considerably shorten the life of engine and pump. Never put your pump in operation, without any water there in.

• Do not refuel your pump without completely stopping engine. Refueling during operation involves the possibility of catching on fire.
  Never smoke nor make a fire around your gasoline-engine pump.

INTERNAL COMBUSTION ENGINE SAFETY

WARNING: Internal combustion engines present special hazards during operation and fueling. Read and follow the warning instructions in the engine Owner’s Manual and the safety guidelines below. Failure to follow the warnings and safety standards could result in severe injury or death.

• DO NOT run the machine indoors or in an enclosed area such as a deep trench unless adequate ventilation, through such items as exhaust fans or hoses, is provided. Exhaust gas from the engine contains poisonous carbon monoxide gas; exposure to carbon monoxide can cause loss of consciousness and may lead to death.
• DO NOT smoke while operating the machine.
• DO NOT smoke when refueling the engine.
• DO NOT refuel a hot or running engine.
• DO NOT refuel the engine near an open flame.
• DO NOT spill fuel when refueling the engine.
• DO NOT run the engine near open flames.
• ALWAYS refill the fuel tank in a well-ventilated area.
• ALWAYS replace the fuel tank cap after refueling.
• ALWAYS check the fuel lines and the fuel tank for leaks and cracks before starting the engine. Do not run the machine if fuel leaks are present or the fuel lines are loose.

ALWAYS avoid contact with hot fuel, oil, exhaust fumes and solid surfaces.

• Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a water pump while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating water pumps may result in serious personal injury.
• Dress properly. Do not wear loose clothing, dangling objects, or jewelry. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts. Air vents often cover moving parts and should be avoided.
• Use safety apparel and equipment. Use safety goggles or safety glasses with side shields which comply with current national standards, or when needed, a face shield. Use as dust mask in dusty work conditions. This applies to all persons in the work area. Also use non-skid safety shoes, hardhat, gloves, dust collection systems, and hearing protection when appropriate.
• Do not overreach. Keep proper footing and balance at all times. Remove adjusting keys or wrenches before connecting to the power supply or turning on the tool. A wrench or key that is left attached to a rotating part of the tool may result in personal injury.

Installation of connective soft pipe:
Set the rubber soft pipe on the connector of inlet pipe. Please note it must be set over the thread. Then tighten it with clipper joint.
In the orther side of the rubber soft pipe, a filter should be attached.

OPERATION

• When the pump is used in winter, screw off the drain cock under the pump and draw off water thoroughly after stopping the machine. This prevents the pump from being damaged by frozen water.

• If the gap between impeller and the surface of flow guidance is over 1/32 inch (1mm), it can continue to be used after adding an adjustment shim on the shaft shoulder.

• When changing self-priming pump’s machinery seal, be sure to apply adhesive between the seal and pump cover. Otherwise, a heavy hit may break the seal during operation.

• When changing machinery seal, install silent ring set in the pump cover, install movable ring set in the engine output shaft. Be careful not to force the ring set when installing to prevent breaking the grind piece.

• The fuel of the pump is a fuel/oil mixture (50:1 ratio). Keep fire and other explosives and inflammables away from the pump. Operate the pump on a level

• Do not add fuel into fuel tank or crank case when the machine is running.

• Exhaust gas contains poisonous carbon monoxide. Never use the machine without proper ventilation, otherwise people and animals would be affected.

• Do not touch muffler and muffler cover while the machine is running or had just been turned off. The muffler area will be very hot. Allow to cool before servicing, if needed

• Run new or newly maintained machine at low speed with low load during the first 20 hours. Do not run it at high speed with full load.

ADJUSTMENT OF IDLING

• Idling rpm is factory adjusted by us , but readjust if requires.
• Turning idling adjustment screw. Clockwise will heighten engine
• speed and counterclockwise will lower engine speed.

Idling should be adjusted five minutes after engine start.

STOP OF ENGINE

• Move the throttle lever to the slow speed position, and operate
• the engine for its cooling at time 2 or 3 minutes.
• 2.Close fuel cock.
• 3.Keep pressing the stop button until the engine stops completely.
  The sudden stoppage of the engine during high-speed operation may  cause the engine trouble; there-fore, avoid it except for the emergency case.

MAINTENANCE

• The Water Pump has a life expectancy dependent upon the quality of maintenance. It is recommended to inspect your unit before and after operation.

Maintenance after operation

• After operation, remove dirt and dust entirely from engine.
• Check engine to confirm that no fuel is leaking.
• Check every tightened part for possible looseness.
• When water mixed with soil and sand has been pumped, pass fresh
• water through your pump to clean the internal parts of pump,
• ( suction and discharge pipes, etc.)

When it is extremely cold in winter, the pump may be damaged due to freezing of water inside the pump case. After finishing the day work, make sure to drain water inside the case and the hose.

• Maintenance every 40 hours Remove and clean spark plug and
• adjust spark gap. (An appropriate spark gap is 0.6 to 0.7mm.)

Maintenance every 50 hours

• Remove air cleaner and flush it well with gasoline.
• After flushing air cleaner, firmly squeeze and install it.

STORING FOR A LONG PERIOD

•  Drain water out of pump, sucking and discharge pipes.
• Drain fuel out of fuel tank and carburetor float chambers.
• Store it at dry and no dust place

TROUBLE SHOOTING

Cannot start engine

4． The  poles

burned

| of| sparking| plug| Replace it
5． The insulation damaged| Replace it
Magneto| 1． The junction of wire drop off or broken| Tighten

replace it

| or
2． The insulation of coil bad| Change
3． The  gap  between  stator  and

rotor is too big

| Adjust gap at

0.4mm

**** The spark plug works normally| Compression ratio is fine and fuelling normally| 1. The fuel suck in excess| Reduce

fuel

| the
2. The quality of fuel is bad and mix with water and dirty| Change fuel| the
Fueling well but compression

ratio bad

| Cylinder and piston ring wore or tore| Replace them

Carburetor no fueling

| 1.    No fuel in the tank| Feed the fuel
2.    Fuel cock is not open| Open it
3.    The  air

clogged

| hole| of  the| tank| Clean

THE ENGINE OUTPUT IS INSUFFICIENT

The compression ratio is fine and the fire has not gone out

| 1.    The union of fuel pipe suck

in the air

| Tighten it
2.    The connection of

carburetor suck in air

| Change    seal    and

tighten it

3.    The fuel mix with water| Change the fuel
4.    The filter plate clogged| Clean
5.    The carbon clogs

muffler, cylinder

| Clean

Engine overheats

| 1.    Mixed gas thin| Adjust the carburetor
2.    Cylinder covered withb carbon| Clean

Engine noisy or knocking

| 1.    Fuel bad| Replace
2.    Firing chamber covered with carbon| Clean
3.The running parts wore and tore| Check and replace

Engine stops while running

Engine stops suddenly

| The piston bitten| Change the piston or remedy it
1.    The sparking plug    laid    down    the carbon and short circuited| Clean out the carbon
2.    Magneto is bad| Check and remedy
The    engine stops

slowly

| 1.    Fuel is short| Feed the tank
2.    Carburetor clogged| Clean
3.    Water in fuel| Refill with fresh fuel

Engine hard to stop

gap
2.    Stop button is bad| Check and remedy

Trouble and remedy of pump

Can not self-suck

| 1.    No water or water shortage in pump| Feed| water
2.    Sealing of junction damaged or junction    loosened    make    the suction hose suck in air| Change or tighten
3.    Suction hose broken up make the air is sucked in| Change the pipe
4.    The    valve    connected    on    the discharge side is closed or doubled| Check and adjust
5.    The gap of impeller and volute

shell is incorrect

| Adjust
6. The pump clogged by foreign body| Clean
Water outlet is insufficient and pressure is too low| 1.    The strainer of sucking pipe clogged| Clean
2.    The suction hose doubled and clogged| Clean
3.    The pump clogged by foreign body| Clean
4.    Impeller and volute shell wore out| Change
5.    The position of discharge port is too high| Change the installing of pump
Can not pull the starter| 1.    Impeller

rusting

| and| volute| shell| Clean
2.    The pump clogged| Clean
Leaking water| 1.    Mechanical seal wore out| Change
2.  O-sealing damaged| ring| of  pump| shaft| Change

DECOMPOSITION·ASSEMBLY· REPAIR

• Please operate according to following methods if decompose imperatively

  • Loose screw and take down the handle and pump case in turn. Remember the position of installing volute shell in pump case.
  • The screw of impeller is clockwise levorotation will take down the impeller.
    Please attend not to lose the probable adjusting shim between the impeller and shaft .

• Please assemble according to following methods

  1. If change impeller and volute shell, please adjust the gap at 0.8mm through adding or reducing the adjusting shim.
  2. The tightening torque of screws on the pump refer to following list.

Attention: Please do not decompose engine anyhow. If necessary, please contact our local dealer or service station we designated.

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