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15

Operator's Manual    

 

 

 

 

 

 

 

17

operating instructions

  

Hot water operation: 

1.  Follow the steps outlined for "START-UP/COLD WATER OPERATION".
2.  Move the Burner Switch  to the ON position.  On initial start-up, water will begin 

turning hot in approximately 20 seconds and will reach maximum temperature in 

approximately 2-1/2 minutes, provided the trigger remains squeezed.  The burner 

will stop firing when the trigger is released.

NOTE:  While spraying, it is normal for the burner to fire intermittently.  The high-limit 

switch will cause combustion to cease when the temperature of the discharged 

water exceeds the maximum temperature setting of the switch.  Combustion 

will begin again when the temperature drops below the minimum setting.

At this point, the unit is operating as a hot water pressure washer.  Be certain to be 

extremely cautious when adjusting the pressure and controlling the trigger gun/lance 

assembly to avoid the possibility of burns.

cleaning witH detergents:  

NOTE:  This feature is designed for use with mild detergents only.  Since the cleaning 

solution travels through various parts of the pressure washer, do not use corrosives 

as they will cause extensive damage as well as pose a considerable safety hazard.

1.  Refer to “Risk of Bodily Injury / Detergents”.  Be certain to wear protective safety 

attire as stated in warnings. 

2.  Prepare detergent solution according to label directions.  (Never pump acids, alkalines, 

abrasive fluids or solvents through the unit. Due to the unknown and often corrosive 

characteristics of many detergents commonly used in the pressure washer cleaning 

industry, it is recommended to use only mild detergents with this unit.)

3.  Fully immerse the strainer end of the clear vinyl detergent hose into the  

detergent solution.

4.  DIRECT FEED: Be certain the adjustable grip on the dual lance is turned completely 

clockwise for low  pressure detergent operation.

NOTE:  This injection system is designed to apply detergents under low pressure 

only.  It will not allow detergent solutions to be introduced into the system unless 

the dual lance is set in the low pressure mode.

5.  To apply solution;  unlock the trigger gun and squeeze the trigger.  In a few moments 

a  detergent/water mixture will exit the 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.  Avoid working on 

hot surfaces or in direct sunlight to minimize the chances of the detergent drying, 

which may result in damaging surfaces.  Be certain to apply cleaning solution to 

a small section at a time.

6.  To rinse;  lock the trigger gun in the “OFF” position,
 

DIRECT FEED: Rotate the adjustable grip on the dual lance counterclockwise 

for high pressure.  

7.  Siphon a gallon of water through the detergent injection system after each use.  

This prevents the possibility of corrosion or detergent residue causing mechanical 

problems during the next use.

sHut-down:

1.  Move the Burner Switch to the OFF position.
2.  Squeeze the trigger and discharge the water for a period of three minutes to cool 

the heat exchanger and high pressure hose.  (Insufficient cool down period of 

the high pressure hose will cause excessive wear and eventual rupturing of the 

hose.)

3. 

do not close the choke to stop the engine. 

 Backfire or engine damage may 

occur.  Turn the engine "OFF" as directed in the engine manual.

4.  Close the engine fuel shut-off valve.
5.  Turn the water supply "OFF". 
6.  Pointing the gun in a safe direction, trigger the gun momentarily to relieve trapped 

pressure.

7.  Disconnect and drain the nozzle assembly, gun, wand and hoses.
8.  Store complete assembly in a non-freezing environment.

WARNING

risK of burn!

 

tHe  water  temperature 

could  become  Very  Hot 

during  Hot  water  oper-

ation.    be  cautious  wHen 

adJusting  pressure  or 

controlling  tHe  trigger 

gun/lance assembly.

detergent metering ValVe

Summary of Contents for MN2765HAHW

Page 1: ...operation manual MN2765HAHW MODEL NUMBER...

Page 2: ...REVIEW 11 NOZZLE CONNECTION 11 WATER SUPPLY 11 UNLOADER 12 HEAT DUMP VALVE 12 PRE START INSPECTION PROCEDURES 12 operating instructions 14 15 PRIMING THE PUMP 14 START UP COLD WATER OPERATION 14 HOT W...

Page 3: ...l 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...

Page 4: ...fuel tank Refuel with gasoline only Do not use diesel or fuel oil burner fuel tank Black When refueling the Burner Fuel Tank use No 1 or No 2 fuel oil diesel or kerosene Do not use gasoline Do not op...

Page 5: ...ighpressuredischargespray at yourself or anyone else Always keep operating area clear of all persons DO NOT allow children to operate this unit SEEK EMERGENCY MEDICAL CARE if the spray appears to have...

Page 6: ...asive surfaces such as cement Use only manufacturer recommended repair parts for your pressure washer In freezing temperatures the unit must always be warm enough to ensure there is no ice formationin...

Page 7: ...ring could occur Stay alert watch what you are doing Do not operate the unit when fatigued or under the influence of alcohol or drugs NEVER squeeze the trigger unless securely braced DO NOT overreach...

Page 8: ...8 8 Operator s Manual features 2500 psi HSP 2500 FEATURES 122208 CH...

Page 9: ...aution Risk of Fire 16 Decal Warning Caution Operating 17 Air Shutter Adjusting Arm 18 Burner On Off Switch 19 Gasoline Engine Tank 20 High Pressure Hose 21 Trigger Safety Lock 22 Trigger Gun 23 Insul...

Page 10: ...uel oil diesel or kerosene 4 Purchase gasoline fuel in quantities that may be used within 30 days Use of clean fresh lead free gasoline is recommended Leaded gasoline may be used if lead free is unava...

Page 11: ...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...

Page 12: ...ck the oil level in the pump and engine 2 Inspect the water inlet strainer Clean or replace if necessary See Water Supply 2 pg 11 3 Check all hose connections to ensure they are securely tightened See...

Page 13: ...intenance instructions do not attempt to operate tHis pressure wasHer until you HaVe read and understood all safety precautions and instructions listed in tHis manual incorrect operation of tHis unit...

Page 14: ...he engine has started c Hold the trigger gun open while starting the engine according to the manufacturer s instructions in the engine manual accompanying this unit 5 Once the engine has started perfo...

Page 15: ...ergent operation NOTE This injection system is designed to apply detergents under low pressure only It will not allow detergent solutions to be introduced into the system unless the dual lance is set...

Page 16: ...preset for proper operation between sea level and 2000 feet elevation at standard conditions 60 F ambient water and air temperatures To assure maximum combustion efficiency at colder temperatures and...

Page 17: ...ater Then plug the open end of the hose with your thumb or finger Place the plugged end into the 5 gallon container of water i Start the unit Trigger the gun several times until all the air is worked...

Page 18: ...ly Water is leaking from the Heat Dump Water temperature is too high Do not allow unit to operate in Valve bypass mode with the trigger gun closed for more than 3 minutes Defective valve Replace Oil a...

Page 19: ...s to ensure there is sparking across electrodes No voltage Consult your Customer Service Pressure switch override Pressure should be over 250 PSI 18 Bar to allow burner to come on High limit switch ov...

Page 20: ...k burner air adjustment X X X X Check burner electrodes X Test water pressure X X X X Test fuel pressure X X X X Test water temperature X X X X Descale coil X Must be performed by an authorized servic...

Page 21: ...ae10W 30 engine oil capacity 20 oz pump oil grade Sae30W non detergent pump oil capacity 14 oz Fuel noZZle 1 10 60 B delaVan Btu input 185 500 hour preSSure noZZle SiZe 3 0 partS liSt For C2765HAHW ho...

Page 22: ...ions and will VOID warranty 2 NEVER make adjustments on machinery while the unit is connected to the engine without first removing the ignition cable from the spark plug Turning over the machinery by...

Page 23: ...downstream from pump Burner Fuel System Fuel Type No 1 or No 2 Fuel Oil Diesel or Kerosene Fuel Capacity gallons liters 4 15 Fuel Filter Inline Filter Fuel Pump Two Line Single Stage Fuel Pressure PSI...

Page 24: ...24 4 Copyright 2011 EX 9836 101011 FLOW CHART EMF SYSTEM HSP115 080499 BAR HSP046 072996 BAR...

Page 25: ...on when the trigger gun is closed the SAFETY RELIEF 12 will relieve and allow water to exit safely The heated water then flows through the HIGH PRESSURE HOSE 13 and to the TRIGGER GUN ASSEMBLY 14 whi...

Page 26: ...1 3 Decal Warning Hot Coil Exhaust E S See 34 9001 N A Sep 1 4 Decal Allow to Cool E S See 34 9001 N A Sep 1 5 Decal Hot Surface E S See 34 9001 N A Sep 1 6 Decal Risk of Fire E S See 34 9001 N A Sep...

Page 27: ...2 33 Elbow 23 0034 1 10 Grommet 33 0366 1 34 Switch 32 0798 1 11 Washer 28 0057 1 35 Coil Outlet Block 24 0138 1 12 Brake Handle Assembly 20 0552A01 1 36 Pressure Relief Valve 22 0272 1 13 Screw 27 0...

Page 28: ...ressure Hose 15 0090 1 4 Garden Hose Swivel 23 0095 1 17 Elbow 24 0004 1 5 Pump 3 0146 1 18 Pressure Switch 22 0243 1 6 Thermo Valve 22 0005 1 19 Bolt 27 0118 4 7 Pump Adapter 38 0054 1 20 Lockwasher...

Page 29: ...29 12 yright 2011 EX 9836 101011 PUMP ASSEMBLY 3 0146...

Page 30: ...ckwasher 29 0153 8 12 O ring 25 0370 1 38 Bolt 27 8875 8 13 Oil Sight Glass 46 0670 1 39 Manifold 46 0730 1 14 Reflector 46 0824 1 40 O ring 25 0372 1 15 Retainer 46 0671 1 41 Plug 39 0088 1 16 O ring...

Page 31: ...31 14 EX 983 UNLOADER ASSEMBLY 8 0515...

Page 32: ...See 70 0338 N A Sep 1 11 O ring See 70 0292 70 0366 N A Sep 1 34 Chemical Injector Body See 70 0338 N A Sep 1 12 Piston Guide 8 0502 1 35 Spring 8 0520 1 13 O ring 25 0403 2 36 Ball 8 0521 1 14 O ring...

Page 33: ...rew N A 4 3 Cover N A 1 4 O ring See 70 0306 N A Sep 1 5 Micro Switch N A 1 6 Retainer Clip N A 1 7 Body N A 1 8 O ring See 70 0306 N A Sep 2 9 Back up Ring See 70 0306 N A Sep 1 10 Piston N A 1 11 Wa...

Page 34: ...g 32 0465 3 7 Flatwasher 28 0022 5 25 Elbow 23 0287 1 8 Tensioner Base 10 0071 1 26 Solenoid 44 0098 1 9 Tensioner Sheave Shaft Assembly Inc 6 10 11 850 0166 1 27 Elbow 23 0249 1 10 Shaft 33 0212 1 28...

Page 35: ...Nozzle Holder 33 0182 1 6 Air Diverter Stem Assembly 20 0377A01 1 22 Electrode 32 0377 2 7 Lockwasher 28 1009 1 23 Washer 28 1007 2 8 Nut 30 6001 1 24 Electrode Mounting Plate 33 0180 1 9 Insulation...

Page 36: ...es 7 850 0214 121797 BAR FUEL TANK 850 0214 22 EX 9836 101011 850 0214 34 9001 121797 BAR FUEL TANK 850 0214 REF DESCRIPTION PART QTY 1 Fuel Tank Assembly Inc 2 8 850 0214 1 2 Plug 23 0296 1 3 Fuel Ta...

Page 37: ...Plug 7 Body 8 Plug FUEL PUMP 3 0020 OMHSP018 040694 BAR 23 EX 9836 101011 HSP018 3 0020 041597 BAR FUEL PUMP 3 0020 REF DESCRIPTION PART QTY 1 Fuel Pump Complete Right Hand 3 0020 1 2 Cover Screw 46...

Page 38: ...r Cord FUEL SOLENOID 44 0098 OMHSP013 121698 BAR 24 EX 9836 101011 HSP013 44 0098 121698 BAR FUEL SOLENOID 44 0098 REF DESCRIPTION PART QTY 1 Solenoid Complete 12V 44 0098 1 2 Solenoid Body 46 1013 1...

Page 39: ...9836 101011 HSP121 052908 CH EMF SYSTEM 850 0271 REF DESCRIPTION PART QTY 1 EMF Assembly Includes 2 17 850 0271 1 2 Blower Flange Assembly Includes 3 6 850 0162 1 3 Bearing 48 0041 2 4 Flange Blower 3...

Page 40: ...40 26 yright 2011 EX 9836 1010 WIRING SCHEMATIC WIRING DIAGRAM...

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