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12

Work Pro WCW-Series Operator’s Manual

WATER SUPPLY:

1.

Select a water supply hose which is a quality grade of garden hose measuring
at least 3/4" ID and no longer than 50 feet.

2

Check the water inlet strainer (9) to ensure it is clean and free of any
obstructions.  Periodic cleaning of the water strainer will help prevent pump
problems.  As a strainer becomes obstructed, it restricts proper flow of water
to the pump.  This can result in cavitations which will cause premature failure
of pump packings.  Using a screw driver, remove the screen from the water
inlet.  Clean or replace with Mi-T-M #19-0001 if necessary.

 3. Connect the hoses.

a.

Water supply hose to the water inlet (10) of the unit.

b.

Water supply hose to your pressurized water supply.

c.

The high pressure discharge hose (16) to the water outlet (11) of the
unit.

d.

The high pressure discharge hose to the gun assembly (17).

Be certain all connections are securely tightened.

NOTE:

If there is a high mineral content in your water, it is recommended that an
additional  water strainer (Mi-T-M #851-0207), be added to the water inlet
to help reduce mineral content.  Clean both strainers before starting your
pressure washer.

4.

Follow the incoming water requirements listed below:
a.

Water pressure must be a minimum of 20 pounds per square inch (PSI)
and a maximum of 125 PSI.  (A typical outdoor faucet will generally
supply this PSI if turned completely "ON".)

b.

Incoming GPM must be  approximately one gallon more than the outgoing
GPM stated on the pressure washer nameplate.  (You can check GPM
by timing how long it takes to fill a 5 gallon container.)

c.

Incoming water temperature must not exceed 125°F.  Excessive pump
damage may result if water temperature exceeds this acceptable level.

5.

Never allow the unit to operate without the incoming water line attached and
the water supply completely turned on.

WATER INLET STRAINER

IN-STRN.TIF/D1

OMGEN123/61290/BAR

INSTALLATION & PREPARATION

UNLOADER:

The unloader on your machine is equipped with an adjustment  knob (13) to
adjust the pressure.  Should less pressure be required, simply turn the adjustment
knob counterclockwise.  To set back to maximum, turn adjustment knob
completely clockwise.  DO NOT OVERTIGHTEN!

CAUTION

RISK OF UNIT DAMAGE!

DO NOT OVERTIGHTEN THE
UNLOADER.  BREAKAGE
COULD RESULT IN  IMMEDIATE
LOSS OF WATER PRESSURE
AND COSTLY REPAIRS.

HEAT DUMP VALVE:

To ensure the water temperature does not exceed acceptable levels, never
allow the pressure washer to operate in the bypass mode (with the unit running
and the trigger gun closed) for more than three minutes.

A  "heat dump valve" (12) has been added to this unit to protect the pump.  It
may begin to open and release water if the water temperature in the pump has
exceeded 140°F.  This will allow fresh, cool water to enter the system.

Summary of Contents for WCW-SERIES

Page 1: ...AD MANUAL BEFORE OPERATING This manual is an important part of the pressure washer and must remain with this unit Copyright 1999 Mi T M Corporation Form 37 0526 020999R0 E S Issue Date 020999 WCW SERIES OPERATING INSTRUCTIONS FOR COLD WATER BELT DRIVE PRESSURE WASHER ...

Page 2: ...RES DRAWING 8 SAFETY DECALS 9 INSTALLATION PREPARATION 10 13 ATTIRE 10 SET UP 10 ENGINE FUEL TANK 10 QUICK CONNECT NOZZLES 11 NOZZLE CONNECTION 11 WATER SUPPLY 12 UNLOADER 12 HEAT DUMP VALVE 12 PRE START INSPECTION PROCEDURES 13 OPERATING INSTRUCTIONS 14 15 PRIMING THE PUMP 14 START UP 14 CLEANING WITH DETERGENTS 15 SHUTDOWN 15 STORAGE MAINTENANCE 16 17 SPECIFIC MAINTENANCE 16 WINTERIZING 17 TROUB...

Page 3: ...SNESS THE SIGNAL WORDS USED IN THIS MANUAL ARE AS FOLLOWS DANGER INDICATES AN IMMINENTLY HAZARDOUS SITUATION WHICH IF NOT AVOIDED WILL RESULT IN DEATH OR SERIOUS INJURY WARNING INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH IF NOT AVOIDED COULD RESULT IN DEATH OR SERIOUS INJURY CAUTION INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH IF NOT AVOIDED MAY RESULT IN MINOR OR MODERATE INJURY THE SY...

Page 4: ...Allow the engine to cool two minutes before refueling c DO NOT refuel indoors or in a poorly ventilated area d ALWAYS refuel slowly to avoid the possibility of spilled fuel which may cause a risk of fire 4 DO NOT operate the unit if gasoline is spilled Wipe unit clean and move the unit away from the spill Avoid creating any ignition until the gasoline has evaporated 5 DO NOT store the unit near an...

Page 5: ...ou are doing Do not operate the unit when fatigued or under the influence of alcohol or drugs 4 NEVER squeeze the trigger unless securely braced The thrust from the water traveling through the nozzle may be powerful enough to cause the operator to lose balance if unprepared DO NOT overreach or stand on unstable support Wet surfaces can be slippery wear protective foot gear and keep good footing an...

Page 6: ...art this unit if it has been transported in an open or underheated vehicle without first allowing the pump to thaw 4 When connecting the water inlet to the water supply mains local regulations of your water company must be observed In some areas the unit must not be connected directly to the public drinking water supply This is to ensure that there is no feedback of the detergents into the water s...

Page 7: ... while it is connected to the engine without first removing the ignition cable from spark plug Turning the machinery over by hand during adjustment or cleaning might start the engine and machinery with it causing serious injury to the operator 3 Know how to stop the pressure washer and bleed pressures quickly Be thoroughly familiar with controls 4 Before servicing the unit turn the unit off reliev...

Page 8: ...g Risk of Injection 19 Quick Connect Nozzle 1 Decal Warning Caution Operating 2 Decal Warning Beltguard in Place 3 Decal Caution Engine Fuel 4 Decal Warning Muffler Hot 5 Engine 6 Pump 7 Dipstick Pump Oil 8 Oil Sight Glass 9 Water Inlet Strainer FEATURES LISTING PDWCW003 010297 DCE NOTE This drawing is referenced throughout the manual Locations of specific items will be noted by listing the Refere...

Page 9: ...G WITH MOST CURRENT SAFETY DECAL Reference 3 Decal Caution Engine Fuel Part 34 0599 Reference 18 Decal Warning Risk of Injection Part 34 0572 Reference 2 Decal Warning Beltguard Reference 4 Decal Warning Muffler Hot Part 34 0826 Part 34 0598 Reference 1 Decal Warning Caution Operating Statements Part 34 0812 ...

Page 10: ...NOT STORE OPERATE UNIT IN A FREEZING ENVIRONMENT WARNING RISK OF ASPHYXIATION DO NOT OPERATE IN AN ENCLOSED AREA USE THIS PRODUCT ONLY IN WELL VENTILATEDAREAS THE EXHAUST FROM THE ENGINE CONTAINS CARBON MONOXIDE A POISONOUS ODORLESSANDINVISIBLEGAS BREATHING THIS GAS CAN CAUSE SERIOUS INJURY ILLNESS POSSIBLE DEATH WARNING RISK OF EXPLOSION OR FIRE ALWAYS STORE FUEL AWAY FROMTHEWASHERWHILETHE UNIT I...

Page 11: ...nd paint chips 3 The 25 nozzle GREEN This is a flushing nozzle This pattern is best suited for flushing dirt mud and grime Uses Wet sweeping leaves from walks curbs and driveways cleaning stable floors washing swimming pool bottoms degreasing engines 4 The 40 nozzle WHITE This is a wash nozzle This wide spray pattern disperses the water pressure over a large area and is recommended for moderate wa...

Page 12: ...I and a maximum of 125 PSI A typical outdoor faucet will generally supply this PSI if turned completely ON b Incoming GPM must be approximately one gallon more than the outgoing GPM stated on the pressure washer nameplate You can check GPM by timing how long it takes to fill a 5 gallon container c Incoming water temperature must not exceed 125 F Excessive pump damage may result if water temperatur...

Page 13: ...ce if necessary See Water Supply 2 pg 12 3 Check all hose connections to ensure they are securely tightened See Water Supply 5 pg 12 4 Inspect for system fuel leaks If a fuel leak is found DO NOT START UNIT See Fire Ventilation Precautions 2 and 4 pg 4 Be sure that all damaged parts are replaced and that the mechanical problems are corrected prior to operation of the unit If you require service co...

Page 14: ...he trigger Low pressure water will begin flowing from the nozzle 5 BE CERTAIN the trigger gun remains in an open position while starting the engine Brace yourself as the gun will kickback from the high pressure created by the pump once the engine has started 6 Steady the unit during engine start up Refer to the engine manual accompanying this pressure washer for the correct procedures needed to st...

Page 15: ...n and squeeze the trigger In a few moments a detergent water mixture will exit the low pressure nozzle Start spraying the lower portion of the surface being cleaned and move up using long overlapping strokes Applying from the bottom up helps avoid streaking Allow to soak briefly DO NOT allow detergent solution to dry on the surface Avoid working on hot surfaces or in direct sunlight to minimize th...

Page 16: ...ger resulting in a pressure loss Nozzles should be replaced whenever pressure is less than 85 of the maximum The frequency of replacement will depend upon such variables as mineral content in the water and number of hours the nozzle is used BELT TENSION ADJUSTMENT To maintain peak performance of your pressure washer it may be necessary to adjust the belt tension on occasion Follow the procedure ou...

Page 17: ... Proper winterizing is based on the recommended manufacturer s instructions listed on the Protection Chart shown on the back label of most antifreeze containers f Remove the water supply hose from the unit and attach the 3 foot hose securely to the inlet connection Submerge the other end into the anitfreeze solution g Shut off the detergent injector if applicable h Point the wand into the empty co...

Page 18: ...oader valve not operating correctly Repair or replace Water is leaking from the Heat Water temperature is too high Do not allow the unit to operate in Dump Valve the bypass mode with trigger gun closed for more than 3 minutes Defective valve Replace Oil appears milky or foamy Water in oil Change pump oil Fill to proper level Oil leaking from unit DO NOT USE Contact Mi T M Customer Service Detergen...

Page 19: ...006 3 4 SUPPLY HOSE 851 0007 3000 PSI EXTENSION HOSE 50 851 0006 4000 PSI EXTENSION HOSE 50 AW 3000 0000 SANDBLASTER CARBIDE NOZZLE AW 3020 0000 SANDBLASTER CERAMIC NOZZLE AW 4085 0016 PUMP OIL AW 7004 4045 ROTATING NOZZLE AW 7003 1500 ROTATING BRUSH AW 7015 1200 EXTENSION WAND 12 AW 7015 1800 EXTENSION WAND 18 AW 7015 2400 EXTENSION WAND 24 AW 7020 8000 ROTARY SURFACE CLEANER AW 7025 8000 25 POWE...

Page 20: ...20 Work Pro WCW Series Operator s Manual ...

Page 21: ...Valves Quick Couplings 3 This warranty does not cover parts damaged due to normal wear misapplication misuse operation at other than recommended speeds pressures or temperature Parts damaged or worn because of the use of caustic liquids or by operation in abrasive or corrosive environments or under conditions causing pump cavitation are not warranted Failure to follow recommended operating and mai...

Page 22: ...22 Work Pro WCW Series Operator s Manual ...

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