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  4. MHP4-3000
  5. Operator's Manual

Landa MHP4-3000 Operator's Manual

Summary of MHP4-3000

  • Page 1

    Mhp for technical assistance or the dealer nearest you, consult our web page at www.Landa.Com 8.913-925.0 operator’s manual listed ® 89139250-7 mhp4-3000  mhp4-3500

  • Page 2: Contents

    Contents 2 model number ______________________________ serial number ______________________________ date of purchase ____________________________ 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 ...

  • Page 3: Important Safety

    Landa mhp • 8.913-925.0 • rev. 8/13 3 pressure w asher opera tor’s manu al introduction & important safety information thank you for purchasing this pressure washer. We reserve the right to make changes at any time without incurring any obligation. Owner/user responsibility: the owner and/or user mu...

  • Page 4

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 4 15. Be certain all quick coupler fittings are secured before using pressure washer. Risk of injection or severe injury to persons. Keep clear of nozzle. Warning warning: high pressure devel- oped by these machines will cause ...

  • Page 5

    Landa mhp • 8.913-925.0 • rev. 8/13 5 pressure w asher opera tor’s manu al important safety information 21. Do not allow acids, caustic or abrasive fluids to pass through the pump. 22. Never run pump dry or leave spray gun closed longer than 1-2 minutes. 23. Machines with shut-off spray gun should n...

  • Page 6: Component Identification

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 6 component identification 89139250-4 water supply hose (not included) variable pressure control wand brass soap nozzle pull rope high pressure hose swivel connector battery box quick coupler collar detergent injector discharge...

  • Page 7: Assembly Instructions

    Landa mhp • 8.913-925.0 • rev. 8/13 7 pressure w asher opera tor’s manu al 89139250-5 assembly instructions step 1: attach a 5/8" water supply hose to inlet connector. Minimum flow should be 5 gpm. Step 3: attach variable pressure control wand to spray gun and swivel connector on high pressure hose ...

  • Page 8: Operating Instructions

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 8 89139250-10 89139250-11 operating instructions step 1: read operator’s manual before operating. Before installing nozzle, turn on water supply and run machine allowing water to flush through the system until clear. Pull wand ...

  • Page 9: Thermal Pump

    Landa mhp • 8.913-925.0 • rev. 8/13 9 pressure w asher opera tor’s manu al warning: some detergents may be harmful if inhaled or ingested, causing severe nau- sea, fainting or poisoning. The harmful elements may cause property damage or severe injury. Step 1: use detergent designed specifically for ...

  • Page 10: Storage

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 10 89139250-8 shutting down and clean-up caution: always store your pressure washer in a location where the temperature will not fall below 32°f (0°c). The pump in this machine is susceptible to permanent damage if frozen. Free...

  • Page 11: Troubleshooting

    Landa mhp • 8.913-925.0 • rev. 8/13 11 pressure w asher t roub leshooting guide troubleshooting problem possible cause solution low operating pressure faulty pressure gauge install new gauge. Insufficient water supply use larger garden hose; clean filter washer at water inlet. Old, worn or incorrect...

  • Page 12: Troubleshooting

    Landa mhp • 8.913-925.0 • rev. 8/13 pressure w asher tr oub leshooting guide 12 troubleshooting problem possible cause solution burner will not light (continued from previous page) clogged burner nozzle clean as required. Thermostat faulty or slow engine speed increase engine rpm to increase voltage...

  • Page 13: Troubleshooting

    Landa mhp • 8.913-925.0 • rev. 8/13 13 pressure w asher t roub leshooting guide troubleshooting problem possible cause solution water temperature too hot incoming water to machine warm or hot lower incoming water temperature. Fuel pump pressure too high call local landa dealer for proper fuel pres- ...

  • Page 14: Troubleshooting

    Landa mhp • 8.913-925.0 • rev. 8/13 pressure w asher tr oub leshooting guide 14 troubleshooting problem possible cause solution pump noisy air in suction line check water supply and connections on suction line. Broken or weak inlet or discharge valve springs check and replace if necessary. Excessive...

  • Page 15: Maintenance And Service

    Landa mhp • 8.913-925.0 • rev. 8/13 15 pressure w asher opera tor’s manu al 1. Check to see that water pump is properly lubricated. 2. Follow winterizing instructions to prevent freeze damage to pump and coils. 3. Always neutralize and flush detergent from system after use. 4. If water is known to b...

  • Page 16: Preventative Maintenance

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 16 step 4 after circulating solution flush entire system with fresh water. Reinstall wand assembly to spray gun. Removal of soot and heating coil in the heating process, fuel residue in the form of soot deposits may develop bet...

  • Page 17: Preventative Maintenance

    Landa mhp • 8.913-925.0 • rev. 8/13 17 pressure w asher opera tor’s manu al initial air adjustments: allow sufficient air to obtain a clean burning flame by loosening the lock screws and moving the air shutter and if necessary the bulk air band. Reduce the air supply until the flame tips appear slig...

  • Page 18: Oil Change Record

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 18 this pressure washer was produced with the best available materials and quality craftsmanship. However, you as the owner have certain responsibilities for the correct care of the equipment. Attention to regular preventa- tiv...

  • Page 19: Control Panel Parts List

    Landa mhp • 8.913-925.0 • rev. 8/13 19 pressure w asher opera tor’s manu al 89139250-9 item part no. Description qty 1 9.802-771.0 screw, 10/32" x 3/4" bh soc 3 2 8.912-711.0 box, mhp electrical, welded 1 3 9.802-530.0 rectifier, bridge, mb156, 12 vdc, 30 amp 1 4 9.802-470.0 relay, p & b/vf41f11, 12...

  • Page 20

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 20 exploded view - left side exp osed p ull eys an d bel ts ca n caus e inju ry pr ec au cio n/a ve rt isseme nt warni ng ex pos ed pull ey s an d be lts ca n ca us e inju ry pre cau cio n/av ert iss em en t warnin g 89139250-2...

  • Page 21

    Landa mhp • 8.913-925.0 • rev. 8/13 21 pressure w asher opera tor’s manu al exploded view - right side 89139250-3 37 58 65 88 56 50 36 24 119 66 44 83 89, 90, 94 63 63 48 49 100 95 96 97 98 55 57 107 24 39 46 45 54 69 75 43 42 67 68 41 43 42 78 80 53 52 82 84 92 57 87, 90, 93 14 101 99 90 89 34 79 5...

  • Page 22: Exploded View Parts List

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 22 exploded view parts list item part no. Description qty 1 8.912-187.0 wrap, top (all) yellow 1 2 9.802-071.0 trim, 1/16", black, 750 - b2 36" 3 9.802-766.0 screw, 3/8" x 1" hx 6 4 8.717-424.0 insulation, gasket, skid, stackle...

  • Page 23: Exploded View Parts List

    Landa mhp • 8.913-925.0 • rev. 8/13 23 pressure w asher opera tor’s manu al exploded view parts list item part no. Description qty 70 see pump pulley specifications, pages 28-29 71 see engine pulley specifications, pages 28-29 72 see engine bushing specifications, pages 28-29 73 see pump bushing spe...

  • Page 24

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 24 89139250-1 22 17 20 21 16 11 22 23 13 14 15 19 18 10 5 4 3 1 2 2 26 25 12 30 30 29 24 9 optional wheel kit assembly 22 22 float tank option landa pump with float tank option detergent valve option 7 8 6 27 exploded view - de...

  • Page 25

    Landa mhp • 8.913-925.0 • rev. 8/13 25 pressure w asher opera tor’s manu al item part no. Description qty 1 8.707-317.0 valve/control, metering 1 9.802-810.0  washer, 5/8" sae flat zinc 1 8.719-011.0  washer, 5/8" interval star zinc 1 2 8.706-958.0 hose barb, 1/4" barb x 1/4" pipe, 90° 2 3 6.390-1...

  • Page 26

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 26 item part no. Description qty 1 9.802-166.0 coupler, 3/8" female 1 9.802-100.0  quick coupler o-ring lg 1 2 8.739-213.0 hose, 3/8" x 50', 2 wire tuff skin 1 3 8.751-234.0 gun, landa, l1050 5000 psi, 10.4 gpm 1 4 8.711-293.0...

  • Page 27

    Landa mhp • 8.913-925.0 • rev. 8/13 27 pressure w asher opera tor’s manu al item part no. Description qty 1 9.802-216.0 injector, detergent, non adjust, #3 1 2 6.390-126.0 clamp, hose, .46-, .54 st 2 3 9.802-251.0 tube, 1/4" x 1/2", clear vinyl 6 ft. 4 8.707-057.0 strainer, 1/4", hose barb 1 3 2 1 4...

  • Page 28: Specifications

    Landa mhp • 8.913-925.0 • rev. 8/13 pressure w asher specifications 28 specifications model model part # pulley pulley part # bushing bushing part # belt size/qty model belt part # model type part # pulley pulley part # bushing part# mhp4-30324e lt4035 8.904-869.0 2ak84h 9.802-375.0 25mm 9.802-403.0...

  • Page 29: Specifications

    Landa mhp • 8.913-925.0 • rev. 8/13 29 pressure w asher specifications model model part # pulley pulley part # bushing bushing part # belt size/qty model belt part # model type part # pulley pulley part # bushing part# mhp4-30324e lt4035 8.904-869.0 2ak84h 9.802-375.0 25mm 9.802-403.0 ax38 (2) 4-303...

  • Page 30

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 30 for best performance specify genuine landa sure fire replacement parts landa sure fire burner replacement parts.

  • Page 31

    Landa mhp • 8.913-925.0 • rev. 8/13 31 pressure w asher opera tor’s manu al for best performance specify genuine landa sure fire replacement parts landa sure fire burner replacement parts item # p ar t # description q ty item # p ar t # description q ty 1 8.919-050.0 b urner housing assembl y 1 25 8...

  • Page 32

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 32 torque specs item # ft.-lbs. 17 75 18 45 27 18 37 10 48 30 53 7.6 lt.1 series pump exploded view lt.1 series pump exploded view parts list 8.904-869.0 lt4035.1 right 8.904-870.0 lt4035.1 left 8.904-871.0 lt4040.1 right 8.904...

  • Page 33

    Landa mhp • 8.913-925.0 • rev. 8/13 33 pressure w asher opera tor’s manu al lt.1 series pump parts list (cont) item part no. Description qty 39* see kit o-ring Ø1.78 x10.82 3 40* see kit teflon ring 3 41* see kit plunger 3 42* see kit copper spacer 3 43 9.803-143.0 plunger rod 3 44 9.803-157.0 conne...

  • Page 34

    Landa mhp • 8.913-925.0 • rev. 8/13 opera tor’s manu al pressure w asher 34 vrt3 unloader exploded view and parts list unloader adjustment procedures 1. Remove lock nut (item 19). 2. Remove adjustment knob (item 18). 3. Loosen the two (2) nuts (item 15), move them upward on stem (item 8) until you s...

  • Page 35

    Landa mhp • 8.913-925.0 • rev. 8/13 pressure w asher w arranty landa limited new product warranty pressure washers what this warranty covers all landa pressure washers are warranted by landa to the original purchaser to be free from defects in materials and workmanship under normal use, for the peri...

  • Page 36

    Form#8.913-925.0• revised8/13•printedinu.S.A..