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12

Operations

Detergents & General Cleaning 

Techniques

WARNING: Some detergents may 

be harmful if inhaled or ingested, 

causing severe nausea, fainting 

or poisoning. The harmful 

elements may cause property 

damage or severe injury.
AVERTISSEMENT: Certains 

détergents peuvent être 

dangereux s'ils sont inhalés ou 

ingérés, provoquant de fortes 

nausées, des évanouissements et 

l'empoisonnement. Les éléments dangereux 

peuvent causer des dommages à la propriété ou 

des blessures graves

STEP 1:

 Use detergent designed 

specifically for pressure washers. 

Household detergents could 

damage the pump. Prepare 

detergent solution as required by 

the manufacturer. Fill a container 

with pressure washer detergent. 

Place the filter end of detergent 

suction tube into the detergent 

container.

STEP 2:

Turn variable pressure control valve on the 

wand counter clockwise for low pressure until you 

observe detergent flowing through the detergent pick-

up tube

STEP 3:

 With the engine running, 

pull trigger to operate machine. 

Liquid detergent is drawn into the 

machine and mixed with water. 

Apply detergent to work area. Do 

not allow detergent to dry on 

surface.

IMPORTANT: You must flush the detergent 

injection system after each use by placing the 

suction tube into a bucket of clean water, then run 

the pressure washer with detergent valve open for 

1-2 minutes.

Thermal Pump Protection

If you run your pressure washer for 3-5 minutes without 

pressing the trigger on the spray gun, circulating water 

in the pump can reach high temperatures. When the 

water reaches this temperature, the pump protector 

engages and cools the pump by discharging the warm 

water onto the ground. This thermal device prevents 

internal damage to the pump.

Cleaning Tips

Pre-rinse cleaning surface with fresh water. Place 

detergent suction tube directly into cleaning solution 

and apply to surface at low pressure (for best results, 

limit your work area to sections approximately 6 feet 

square and always apply detergent from bottom to top). 

Allow detergent to remain on surface 1-3 minutes. Do 

not allow detergent to dry on surface. If surface 

appears to be drying, simply wet down surface with 

fresh water. If needed, use brush to remove stubborn 

dirt. Rinse at high pressure from top to bottom in an 

even sweeping motion keeping the spray nozzle 

approximately 1 foot from cleaning surface. Use over

-

lapping strokes as you clean and rinse any surface. For 

best surface cleaning action spray at a slight angle.

Recommendations:

Before cleaning any surface, an inconspicuous 

area should be cleaned to test spray pattern 

and distance for maximum cleaning results.

If painted surfaces are peeling or chipping, use 

extreme caution as pressure washer may 

remove the loose paint from the surface.

Keep the spray nozzle a safe distance from the 

surface you plan to clean. High pressure wash 

a small area, then check the surface for 

damage. If no damage is found, continue to 

pressure washing.

       

CAUTION - Never use:

Bleach, chlorine products and other corrosive 

chemicals

Liquids containing solvents (i.e., paint thinner, 

gasoline, oils)

Tri-sodium phosphate products

Ammonia products or acid-based products

        ATTENTION: Ne jamais utiliser

:

Eau de Javel, produits à base de chlore et 

autres produits chimiques corrosifs

Landa PGHW Operator’s Manual   8.916-485.0 - BW

WARNING

Detergent Injector

Summary of Contents for PGHW4-3000

Page 1: ...ty XXXX XXX XXXX XX X XXXX XXX XXXX XX XXXX XXX XXXX GAS 8 916 274 0 DIE SEL 8 932 960 0 MODELS PGHW4 3000 1 110 048 0 PGHW4 4000 1 110 047 0 PGHW5 3000 1 110 046 0 PGHW5 3500 1 110 045 0 PGHW8 3000 1...

Page 2: ...2 Landa PGHW Operator s Manual 8 916 485 0 BW Machine Data Label...

Page 3: ...ions 10 Battery Installation 10 Operation Instructions 11 Detergents General Cleaning Techniques 12 Thermal Pump Protection 12 Cleaning Tips 12 Shutting Down And Clean Up 13 Maintenance Storage 14 Aft...

Page 4: ...ion and function of the machine The MAINTENANCE section contains preventive main tenance to keep the machine and its components in good working condition They are listed in this general order Storage...

Page 5: ...by trained opera tors Important Safety Information WARNING To reduce the risk of injury read operating instructions carefully before using AVERTISSEMENT Pour r duire le risque de blessures lire attent...

Page 6: ...fueling If any fuel is spilled make sure the area is dry before testing the spark plug or starting the engine Fire and or explosion may occur if this is not done Gasoline engines on mobile or portable...

Page 7: ...des dommages l quipement Se tenir l cart de la buse Faire preuve de prudence lors de l utilisation Ne pas d charger directement le jet vers des personnes ou des animaux car cela risquerait de causer...

Page 8: ...100 before stopping the machine Then open the spray gun to relieve pressure Failure to properly cool down or maintain the heating coil may result in a steam explosion 26 Do not overreach or stand on u...

Page 9: ...tergent Valve Engine Switch Fuel Cap Hose Reel Garden Hose Not Included High Pressure Nozzle Spray Wand Pillow Tank Spray Gun Water Connection Hose Valve Assembly High Pressure Hose Float Tank Burner...

Page 10: ...Install proper battery making sure that the red cable is attached to the positive terminal Use a 12V Group 24 battery on all models except 4 40321 and 5 35321E These models use a U1 30 amp garden tra...

Page 11: ...t water turn the burner switch to ON when a steady stream of water flows out of the spray gun Burner will now light automatically NOTE Do not start machine with burner switch on STEP 3 Pull wand coupl...

Page 12: ...pump protector engages and cools the pump by discharging the warm water onto the ground This thermal device prevents internal damage to the pump Cleaning Tips Pre rinse cleaning surface with fresh wa...

Page 13: ...10 Burner Switch Se nD EC TAC H H OU R 1 10 Engine Key Switch Liquides contenant des solvants c d diluant peinture essence huiles etc Produits base de tripolyphosphate de sodium Ammoniac ou produits b...

Page 14: ...flame or sparks NOTE The use of a fuel additive such as STA BIL or an equivalent will minimize the formulation of fuel deposits during storage Such additives may be added to gasoline in fuel tank of t...

Page 15: ...hermostat For safety each machine is equipped with a tempera ture sensitive high limit control switch In the event that the water should exceed its operating temperature the high limit control will tu...

Page 16: ...low 130 PSI when checked at the post pump pressure port The fuel pressure may need to be adjusted due to altitude For every 500 ft altitude above sea level the boiling point of water goes down 1 F At...

Page 17: ...ocal state and federal regulations CAUTION If white smoke appears from burner exhaust vent during start up or operation discon tinue use and readjust air bands ATTENTION Si de la fum e blanche s chapp...

Page 18: ...n Leaking pressure control valve Rebuild or replace as needed Slow engine RPM Set engine speed at proper specifications Pump sucking air Check water supply and possibility of air seepage Valves sticki...

Page 19: ...ne altitude The gasoline engine is preset for operation at altitudes below 1000 feet above sea level If operated at higher altitudes it may be necessary to install a high altitude main jet in the carb...

Page 20: ...ce Incorrect fuel nozzle size See specifications for proper fuel nozzle Insufficient water supplied Check water G P M to machine Restricted water flow Check nozzle for obstruction proper size PUMP NOI...

Page 21: ...nt line s Repair hole Low detergent level Add detergent if needed PUMP RUNNING NORMALLY BUT PRESSURE LOW ON INSTALLATION Pump sucking air Check water supply and possibility of air seepage Valves stick...

Page 22: ...ent Contact your Landa dealer for maintenance Regular preventative maintenance will add many hours to the life of your pressure washer Perform maintenance more often under severe conditions Maintenanc...

Page 23: ...e pump oil after first 50 hours and every year or 500 hours thereafter Use SAE 10W 40 non foaming oil DateOilChanged Month Day Year Estimated Operating Hours Since Last Oil Change DateOilChanged Month...

Page 24: ...8 916 485 0 Printed in U S A...

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