Landa MHP4-3000 Operator's Manual
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Landa MHP4-3000 Operator's Manual

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MHP
OPERATOR'S MANUAL
 MHP4-3000
 MHP4-3500
89139250-7
®
For technical assistance or the dealer nearest you,
consult our web page at www.landa.com
8.913-925.0

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Summary of Contents for Landa MHP4-3000

  • Page 1 OPERATOR’S MANUAL  MHP4-3000  MHP4-3500 89139250-7 ® For technical assistance or the dealer nearest you, consult our web page at www.landa.com 8.913-925.0...

  • Page 2: Table Of Contents

    The model and serial numbers will be found on a decal attached to the pressure washer. You should record both serial number and date of purchase and keep in a safe place for future reference. LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 3: Introduction & Important Safety Information

    SPRay aWay fROM utility company or the selling d. with an allowance made for expansion of the eleCTRICal WIRINg. distributor for specific details. fuel should the equipment be exposed to a higher ambient temperature. LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 4: Important Safety Information

    Failure to do this could USINg laDDeR. result in injury from a whipping wand. 14. Never make adjustments on machine while in operation. TRIggeR gUN kICkS baCk - HOlD WITH bOTH HaNDS LANDA MHP • 8.913-925.0 • Rev. 8/13...
  • Page 5 28. In oil burning models, use only kerosene, No. 1 home heating fuel, or diesel. If diesel is used, add a soot remover to every tankful. Follow the maintenance instructions speci- fied in the manual. LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 6: Component Identification

    This system prevents internal pump damage. Wand — Must be connected to the spray gun. High Pressure Hose — Connect one end to water pump high pressure discharge nipple and the other end to spray gun. LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 7: Assembly Instructions

    (diesel) tanks. Keep proper a U1 30 amp garden tractor style The oil level can also be checked fuel in proper tanks. battery (battery not included). by using the dipstick on the top of the pump. LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 8: Operating Instructions

    To or green 25° nozzle. To scour the surface, select the apply soap, read washing techniques section. yellow 15° or red 0° nozzle. LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 9: Detergents & General Washing Techniques

    It will take a few seconds for the detergent to clear. valves then run the pressure washer for 1-2 min- Apply safety latch to spray gun and close detergent utes. valve. Select and install the desired high pressure nozzle. LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 10: Shutdown & Cleanup

    3. Pour about one teaspoon of engine oil through engine manufacturer's manual for service and mainte- the spark plug hole, pull the starter grip several nance of the engine. times and replace the plug. Then pull the starter LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 11: Troubleshooting

    Operator’s Manual Fuel not reaching combustion Check fuel pump for proper flow. Check chamber solenoid flow switch on machines with spray (Continued on gun control, for proper on-off fuel flow control. next page) LANDA MHP • 8.913-925.0 • Rev. 8/13...
  • Page 12 Weak fuel pump Check fuel pump pressure. Replace pump if needed. Fuel filter partially clogged Replace as needed. Soot build-up on coils not allowing heat Clean coils. transfer Improper burner nozzle See specifications. LANDA MHP • 8.913-925.0 • Rev. 8/13...
  • Page 13 SOlUTION WaTeR Incoming water to machine warm or hot Lower incoming water temperature. TeMPeRaTURe Fuel pump pressure too high Call local Landa Dealer for proper fuel pres- TOO HOT sure. Fuel pump defective Replace fuel pump. Detergent line sucking air Tighten all clamps.
  • Page 14 Position correctly, tighten set screw. NOT RUN Defective control switch Replace switch. Loose wire Check and replace or tighten wiring. Defective burner motor Replace motor RelIef ValVe Relief valve defective Replace or repair. leakS WaTeR LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 15: Preventative Maintenance

    Powder (Landa Part #9-028008) will remove lime ment clean and dry. and other deposits before coil becomes plugged. The areas around the Landa washer should be kept (See Deliming Instructions for use of Landa Deliming Powder.) clean and free of combustible materials, gasoline and other flammable vapors and liquids.

  • Page 16: Fuel Pressure Adjustment

    This can be done by operating the ma- chine and checking to see that when the trigger on the spray gun is in the off position, the burner fuel Pump is not firing. adjustment Screw LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 17: Coil Removal

    NOTe: If a flue is installed, have a professional serviceman adjust your burner for a #1 or #2 smoke spot on the Bacharach scale. LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 18: Maintenance Schedule & Oil Change Record

    Attention to regular preventa- tive maintenance procedures will assist in preserving the performance of your equipment. Contact your Landa dealer for maintenance. Regular preventative maintenance will add many hours to the life of your pressure washer.

  • Page 19: Exploded View, Control Panel And Parts List

    Breaker, Circuit, 25 Amp 9.802-791.0 Nut, Cage, 10/32" 16 Gauge 9.802-794.0 Nut, Cage, 1/4" x 12 Gauge 9.800-094.0 Label, Instruction/Warning 8.912-712.0 Cover, MHP Control 9.800-049.0 Label, Manuf. Cleaning Solution 1 9.802-283.0 Meter, Hour  Not Shown LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 20: Exploded View, Left Side, All Models

    VIeW - lefT SIDe 73 70 89139250-2 LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 21: Exploded View, Right Side, All Models

    VIeW - RIgHT SIDe 89, 90, 94 87, 90, Detail See Control Panel Illus. Wheel kit (Optional) 89139250-3 LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 22: Exploded View Parts List, All Models

    9.802-146.0 Swivel, 1/2" MP x 3/4" GHF 9.802-754.0 Screw, 1/4" x 1/2" HH, NC, Whiz Loc 8.707-055.0 Strainer, Inlet Garden Hose 8.750-246.0 Screw, 1/4" x 1/2" Whiz Loc 8.718-618.0 Bolt, 5/16" x 3/4" LANDA MHP • 8.913-925.0 • Rev. 8/13...
  • Page 23 (11,13 HP) 9.802-151.0 Swivel, 1/2" JIC FEM, Push-on (16 HP) 9.802-126.0 Plug, 1/2" JIC, Flare (16 HP) 9.802-125.0 Plug, 1/4" JIC, Flare (11,13 HP) 9.802-776.0 Nut, 5/16", ESNA, NC 8.912-723.0 Shield, Heat, MHP LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 24: Exploded View, Detergent/Float Combination

    VIeW - DeTeRgeNT/flOaT TaNk landa Pump With float Tank Option float Tank Option Detergent Valve Option 89139250-1 Optional Wheel kit assembly LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 25: Detergent/Float Combination Parts List

    Tank, Plastic Universal Float 8.706-829.0 Elbow, 1/2" Street, Brass 9.802-119.0 Cross, 1/2" Female, Cast 8.706-915.0 Bushing, 1/2 x 1/4 Brass 8.706-965.0 Hose Barb 1/4" x Barb x 3/8" 9.802-254.0 Hose, 1/4" Push-on  Not Shown LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 26: Hose And Spray Gun Assembly

     Quick Coupler O-Ring, Sm Yellow (4-3000, 4-3500) 8.712-347.0 Nozzle, SAQC MEG 2504,  Not Shown Green (4-3000, 4-3500) 8.712-348.0 Nozzle, SAQC MEG 4004 White (4-3000, 4-3500) 8.712-345.0 Nozzle, SAQC MEG 0004, Red (4-3000, 4-3500) LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 27: Downstream Injector Assembly

    DeTeRgeNT INjeCTOR PaRTS lIST ITeM PaRT NO. DeSCRIPTION 9.802-216.0 Injector, Detergent, Non Adjust, #3 6.390-126.0 Clamp, Hose, .46-, .54 ST 9.802-251.0 Tube, 1/4" x 1/2", Clear Vinyl 6 ft. 8.707-057.0 Strainer, 1/4", Hose Barb LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 28: Pump Specifications

    Bushing Bushing Part # Belt Size/Qty MHP4-30324E LT4035 8.904-869.0 2AK84H 9.802-375.0 25mm 9.802-403.0 AX38 (2) MHP4-35224E LT4035 8.904-869.0 2BK90 8.715-593.0 25mm 9.802-403.0 BX44 (2) MHP4-35324E LT4035 8.904-869.0 2BK90 8.715-593.0 25mm 9.802-403.0 BX39 (2) LANDA MHP • 8.913-925.0 • Rev. 8/13...
  • Page 29 Pulley Part # Bushing Part# 4-30324E 9.802-410.0 GX340 (389cc) HONDA 8.750-578.0 2AK30 9.803-298.0 HX1" 5-11100 4-35224E 8.715-705.0 Vanguard (479cc) BRIGGS 9.802-325.0 2BK32 8.715-576.0 HX1" 5-11100 4-35324E 5-604039 GX390 (389cc) HONDA 8.750-579.0 2BK32 8.715-576.0 HX1" 5-11100 LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 30: Landa Sure Fire Burner Replacement Parts

    SURe fIRe bURNeR RePlaCeMeNT PaRTS For best performance specify genuine Landa Sure Fire replacement parts LANDA MHP • 8.913-925.0 • Rev. 8/13...
  • Page 31 SURe fIRe bURNeR RePlaCeMeNT PaRTS For best performance specify genuine Landa Sure Fire replacement parts LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 32: Lt.1 Pump Exploded View And Parts List

    O-Ring Ø2.62 x 17.13 9.803-177.0 Shim See Kit Valve Assembly 9.803-181.0 Bearing Housing See Kit O-Ring Ø2.62 x 20.29 See Kit Plunger Bolt 9.802-928.0 Valve Plug See Kit Copper Spacer 9.802-943.0 Manifold Stud Bolt LANDA MHP • 8.913-925.0 • Rev. 8/13...
  • Page 33 NUMBER OF CYLINDERS KIT WILL SERVICE REPAIR KIT 9.802-603.0 9.802-606.0 NUMBER Complete Valve Plunger Oil Seals KIT DESCRIPTION (all pumps) (all pumps) ITEM NUMBERS 14, 15, 16 INCLUDED NUMBER OF CYLINDERS KIT WILL SERVICE LANDA MHP • 8.913-925.0 • Rev. 8/13...

  • Page 34: Vrt3 Unloader Exploded View And Parts List

    If “spike” pressure exceeds the 500 psi limit, remove the adjusting knob (Item 18) and re-adjust (lower) the nuts (Items 15) on the stem (Item 8). Re-attach the adjusting knob (Item 18), then repeat step #6. LANDA MHP • 8.913-925.0 • Rev. 8/13...
  • Page 35 Authorized LANDA Dealer of the defect. Your Authorized LANDA Dealer will file a claim with Landa, who must subsequently verify the defect. In most cases, the part must be returned to LANDA freight prepaid with the claim. For warranty service on components warranted by other manufacturer’s, your Authorized LANDA Dealer can help you obtain warranty service through these manufacturers’...
  • Page 36 Form #8.913-925.0 • Revised 8/13 • Printed in U.S.A.

This manual is also suitable for:

Mhp4-3500

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