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16

Electrodes

On a yearly basis the electrodes should be
inspected and any necessary adjustments made.
1.  Tip the machine back until it rests on the frame.

2.  Remove the 4 nuts that attach the burner to the

heating chamber.  You do not have to
disconnect the fuel lines or the electric cords.

3. Let the burner fall away from the heat exchanger.

4. Clean off carbon deposits which may have

accumulated on the tips of the electrodes.

5.  Reset the spacing as shown below.

1/16”

1/8”

7/16”

Electrodes

4 Nuts

00793

00794

Summary of Contents for MHOTPWR

Page 1: ...shipped with oil Change oil plug and check pump oil level before starting Use SAE 30 Non detergent pump oil item 4043 or Cat Pump oil item 22158 for oil changes Water Make sure your water flow is 20 h...

Page 2: ...e without sufficient lubrication or sufficient water to cool the pump 9 Wear safety glasses gloves face protection and appropriate clothing when operating the machine 10 Do not operate this machine wi...

Page 3: ...tection from the risk of electric shock Should replacement of the plug or cord become necessary use only identical replacement parts that include GFCI protection 2 For a product rated more than 125 vo...

Page 4: ...270 000 BTU 270 000 BTU Temperature Rise 140 F 140 F 190 F steam mode 140 F 140 F 190 F steam mode Maximum Temperature 210 F 250 F 210 F 250 F Approved Fuels 1 or 2 Diesel Kerosene Fuel Oil 1 or 2 Die...

Page 5: ...Heating Coil 2 High Pressure Water Outlet 11 Fuel Filter 20 Garden Hose Water Inlet 3 Nozzle Holders 12 Main Power Switch 21 Spray Gun 4 Pump 13 Service Panel 22 Grip 5 Burner 14 Thermostat optional...

Page 6: ...l components Use the assembly instructions in this manual for assembly High Pressure Hose Qty 1 Wheel Retainer Qty 2 Nozzle 157321 157325 Qty 4 157322 157326 Qty 5 Spray Gun Grip Qty 1 00786 Hex Wrenc...

Page 7: ...e 3 Slide the two wheel retainers onto the end of the axle Tighten the set screw with the hex wrench provided in the parts bag Description Qty Wheel 2 Wheel Retainer 2 B 1 Install the pressure hose on...

Page 8: ...l cap B Make sure the oil is 1 2 way up oil sight glass CAT PUMPS Quantities Of Fluid Pump Type of Fluid QTY AR XTV SAE 30 8 0oz 0 24L AR XMV SAE 30 14 0oz 0 41L Cat 2SFX SAE 30 11 83oz 0 35L SAE Non...

Page 9: ...fficient supply of oxygen Proper combustion can only be obtained when there is a sufficient supply of oxygen available for the amount of fuel being burned If it is necessary to install a unit in a poo...

Page 10: ...r a pressurized water source such as a city water faucet Sucking water out of a tank may cause pump cavitation and damage to your pump However the inlet pressure of the pump must not exceed 115 psi 8...

Page 11: ...The fuel pump will be damaged if it is run dry To Clean WARNING Wear eye ear hand foot and skin protection at all times while operating this pressure washer DANGER Do not point the spray wand at your...

Page 12: ...otate the grip slightly to allow some flow to pass through the left lance See step 3 b Or turn the black unloader knob counter clockwise WARNING Do not alter the unloader valve s maximum pressure Exce...

Page 13: ...stocking Description 157321 157322 157325 157326 0 Nozzle 25302 25302 305280 305280 15 Nozzle 25309 25309 253010 253010 25 Nozzle 253091 253091 253017 253017 45 Nozzle 253024 253024 253025 253025 Stea...

Page 14: ...ate the skin causing serious injury Do not operate the pressure washer if the hose is cracked worn or leaking A Check all hoses for leaks B Check all hoses of worn areas Changing The Pump Oil Change o...

Page 15: ...the inlet strainer when finished Coil Desooting Poor grades of fuel oil or inadequate combustion air will cause heavy soot build up on the outside surface of the heating coil These deposits will insul...

Page 16: ...me 2 Remove the 4 nuts that attach the burner to the heating chamber You do not have to disconnect the fuel lines or the electric cords 3 Let the burner fall away from the heat exchanger 4 Clean off c...

Page 17: ...arting Follow these instructions to prevent the pump from freezing during storage Winter Storage Items needed 12 piece of garden hose or equivalent funnel and RV antifreeze approximately 2gallons 1 At...

Page 18: ...nd gun for leaks Tighten loose components and replace damaged components Gun leaking internally Replace spray gun Smoke From Heat Exchanger Causes Solutions Air band not adjusted properly due to diffe...

Page 19: ...19 HOTPWR 157321 157322 157325 157326 Parts Breakdown...

Page 20: ...un 3 8 FPT Inlet 1 all 33 777247 Control Box 1 all 34 2212 Chemical Strainer 1 all 35 ST12 Electric Shock Label 1 all 36 30388 Wheel Tire Assembly 2 all 37 777165 Clear Hose Chemical Line 3ft all 38 3...

Page 21: ...77410 3 8 street elbow 1 157322 157326 9 777749 Unloader 1 157322 157326 10 37549 High pressure hose assembly 1 all 11 35104 Safety relief valve 1 157321 157322 22392 Safety relief valve 1 157325 1573...

Page 22: ...3 69 20017 Washer M24 all 3 70 25461 Seal Oil all 3 100 44869 Retainer Seal all 3 106 44876 LPS w S Spg all 3 110 44874 Manifold Inlet all 1 124 45847 Ceramic Plunger all 3 125 43245 HPS w S PS all 3...

Page 23: ...Piston 3 21 480480 O Ring 3 22 1260091 Spacer Disc 3 23 1780070 Piston 3 24 1260100 Piston Washer 3 25 1260110 Nut 3 27 740290 O Ring 2 28 880530 Plug 2 30 1260460 Seal 3 ITEM PART DESCRIPTION QTY 31...

Page 24: ...091 Disc Separator 3 29 1260070 Piston Guide 3 30 1260080 Piston Pin 3 31 1260760 Screw 6 32 1321030 Rear Cover 1 36 1260060 Con Rod 3 37 1260040 Rear Gasket Cover 1 38 740290 O Ring 3 39 880530 Oil D...

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