MS045D - Pest control Maruyama - Free user manual and instructions
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| Product Type | Gasoline-Powered Backpack Mist Blower |
| Brand | Maruyama |
| Model | MS045D |
| Application | Pest control, insecticide and fungicide spraying |
| Engine Displacement | 45 cc |
| Tank Capacity | 4.5 L (chemical tank) |
| Air Volume | 10.5 m³/min |
| Spray Distance | Up to 10 m horizontal |
| Dimensions (L x W x H) | 430 x 370 x 550 mm |
| Weight (empty) | 9.5 kg |
| Power Source | Gasoline (mixed fuel) |
| Fuel Tank Capacity | 1.0 L |
| Fuel Mix Ratio | 50:1 (gasoline to 2-stroke oil) |
| Ignition System | Electronic (CDI) |
| Starting System | Recoil starter |
| Main Functions | Misting, dusting, granule spreading (optional) |
| Maintenance | Clean air filter after each use; check spark plug; drain fuel for storage |
| Safety Features | Throttle lock, anti-vibration handle, protective frame |
| Spare Parts Availability | Authorized dealers and online; all wear parts replaceable |
| Repairability | Modular design; engine and pump serviceable |
Frequently Asked Questions - MS045D Maruyama
How do I start the Maruyama MS045D?
Ensure fuel mix is correct, set choke, prime the bulb, pull starter cord until engine fires, then open choke.
What fuel mix should I use?
Use a 50:1 ratio of unleaded gasoline to high-quality 2-stroke oil. Never use pure gasoline.
How do I clean the sprayer after use?
Run clean water through the tank and nozzle, then dry. Clean air filter regularly.
What type of chemicals can I use?
Water-based insecticides, fungicides, and herbicides. Avoid strong solvents unless specified.
How do I adjust the spray pattern?
Rotate the nozzle tip to change from stream to mist. For long distance use stream, for close crops use mist.
The engine won't start. What should I check?
Check fuel level, spark plug condition, air filter cleanliness, and that the kill switch is in RUN position.
How do I store the MS045D for winter?
Drain fuel, run engine dry, clean unit, lubricate moving parts, and store in dry place.
Is the MS045D suitable for tall trees?
Yes, with optional extension wand and sufficient air volume, it can reach up to 6-8 m vertically.
How often should I replace the spark plug?
Replace every 100 hours of operation or once per season, whichever comes first.
Can I use the sprayer for dust application?
Yes, with the optional dust attachment, you can apply dusts like sulfur or diatomaceous earth.
User questions about MS045D Maruyama
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USER MANUAL MS045D Maruyama
ILLUSTRATED PARTS LIST
MODEL MS045
MODEL MS045D
BACKPACK SPRAYER
Effective 1-4-93
- MAIN BODY
MARUYAMA U.S., INC.
| Ref. No. | Parts No. | Parts Name | Q'ty |
| 1-1 | 323397 | MS045D | 1 |
| 323358 | MS045 | 1 | |
| 1-2 | 111151 | Engine (TF022H - AG22) | 1 |
| 107367 | Engine (KT12X) (MS045) | 1 | |
| 1-3 | 106319 | Bracket | 1 |
| 1-4 | 081454 | Screw (M6x14) | 7 |
| 1-5 | 012502 | Spring Washer (M6) | 7 |
| 1-6 | 100573 | Buffer | 4 |
| 1-7 | 100420 | Nut (M6) | 4 |
| 1-8 | 106334 | Base | 1 |
| 1-9 | 019056 | Washer (6.5x18xtl) | 4 |
| 1-10 | 103156 | Stay | 1 |
| 1-11 | 081415 | Screw (M5x0.8x16) | 2 |
| 1-12 | 103549 | Nut (M5x0.8) | 3 |
| 1-13 | 102377 | Throttle Lever | 1 |
| 1-14 | 105337 | Band | 2 |
| 1-15 | 101110 | Stop Button | 1 |
| 1-16 | 102380 | Earth Cord | 1 |
| 1-17 | 012489 | Washer (M8) | 2 |
| 1-18 | 109704 | Nut (M6) | 4 |
| Ref. No. | Parts No. | Parts Name | Q'ty |
- CHEMICAL TANK
MARUYAMA U.S., INC.
| Ref.No. | Parts No. | Parts Name | Q'ty | Ref.No. | Parts No. | Parts Name | Q'ty |
| 2-1 | 106327 | Chemical tank | 1 | ||||
| 2-2 | 106329 | Connector | 1 | ||||
| 2-3 | 107176 | Packing (ø 50 xø 60 x13) | 1 | ||||
| 2-4 | 100466 | Cap | 1 | ||||
| 2-5 | 106330 | Strainer | 1 | ||||
| 2-6 | 102623 | Strainer | 1 | ||||
| 2-7 | 106331 | Cap, chemical tank, ass'y | 1 | ||||
| 2-8 | 106332 | · Cap, chemical tank | 1 | ||||
| 2-9 | 022363 | · Inner cap | 1 | ||||
| 2-10 | 022362 | · Packing (ø 150 xø 170 x110) | 1 | ||||
| 2-11 | 106333 | Blind cap | 1 | ||||
| 2-12 | 029299 | Blind packing (ø 36 x13) | 1 | ||||
| 2-13 | 106335 | Fuel tank | 1 | ||||
| 2-14 | 106920 | Strainer | 1 | ||||
| 2-15 | 028391 | Cap | 1 | ||||
| 2-16 | 106344 | Collar | 2 | ||||
| 2-17 | 081465 | Screw (M6 x 18) | 2 | ||||
| 2-18 | 019056 | Washer (ø 6.5 xø 18 x11) | 4 | ||||
| 2-19 | 012502 | Spring washer (M6) | 10 | ||||
| 2-20 | 105334 | Vinyl hose (ø 7 xø 11 x125L) | 1 | ||||
| 2-21 | 105335 | Hose band (# 10) | 2 | ||||
| 2-22 | 106349 | Plate | 1 | ||||
| 2-23 | 029306 | Strap hook | 1 | ||||
| 2-24 | 106350 | Bracket | 1 | ||||
| 2-25 | 081452 | Screw (M6 x 10) | 4 | ||||
| 2-26 | 106351 | Cushion pad | 1 | ||||
| 2-27 | 106352 | Packing (ø 5.5 xø 16 x t1.5) | 2 | ||||
| 2-28 | 081453 | Screw (M6 x 12) | 4 | ||||
| 2-29 | 101863 | Fastener | 2 | ||||
| 2-30 | 106353 | Clip | 2 | ||||
| 2-31 | 013754 | Washer (M6) | 2 | ||||
| 2-32 | 108466 | Knapsack strap, ass'y | 2 | ||||
| 2-33 | 019874 | · Shoulder pad | 2 | ||||
| 2-34 | 020654 | Bolt (M6) | 2 | ||||
| 2-35 | 100420 | Nut (M6) | 2 | ||||
| 2-36 | 100603 | Washer (M6) | 2 | ||||
3. POWER SPRAYER
MARUYAMA U.S., INC.
| Ref.No. | Parts No. | Parts Name | Q'ty | Ref.No. | Parts No. | Parts Name | Q'ty |
| 3-1 | 106320 | Pump, ass'y | 1 | ||||
| 3-2 | 106275 | ·Casing | 1 | ||||
| 3-3 | 107421 | ·Mechanical seal | 1 | ||||
| 3-4 | 107201 | ·Holder | 1 | ||||
| 3-5 | 106323 | ·C-shaped snap ring (S12) | 1 | ||||
| 3-6 | 107202 | ·Impeller (57x3.5Tx12) | 1 | ||||
| 3-7 | 014033 | ·O-ring (S67) | 1 | ||||
| 3-8 | 106276 | ·Casing cover | 1 | ||||
| 3-9 | 106325 | ·Elbow (PT1/4) | 1 | ||||
| 3-10 | 106326 | ·T-joint (PF1/4) | 1 | ||||
| 3-11 | 025604 | ·Nut (PF1/4) | 1 | ||||
| 3-12 | 011343 | ·O-ring (P10A) | 1 | ||||
| 3-13 | 065005 | ·Washer (M6) | 4 | ||||
| 3-14 | 105849 | ·Spring washer (M6) | 4 | ||||
| 3-15 | 088348 | ·Screw (M6 x 45) | 4 | ||||
| 3-16 | 100704 | Nozzle plate (ø 1.0xø 8.2x t1) | 1 | ||||
| 3-17 | 100703 | Packing (ø 6 xø 11.5 x t2.5) | 1 | ||||
| 3-18 | 023266 | Hose coupling (F) (PF1/4) | 1 | ||||
| 3-19 | 106346 | Inner core | 1 | ||||
| 3-20 | 106347 | Vinyl hose (ø 5 xø 8 x 400L) | 1 | ||||
| 3-21 | 106348 | Hose band (# 4) | 2 | ||||
| 3-22 | 105336 | Vinyl hose (ø 10xø 15x180L) | 1 | ||||
| 3-23 | 103033 | Hose band (# 27) | 2 | ||||
| 3-24 | 013963 | O-ring (S10) | 1 | ||||
- ENGINE (CRANKCASE, CYLINDER)
(KT12X)
MARUYAMA U.S., INC.
| Ref.No. | Parts No. | Parts Name | Q'ty | Ref.No. | Parts No. | Parts Name | Q'ty |
| 4-1 | 107367 | Engine (KT12X) | 1 | 4-38 | 943170 | Gasket | 2 |
| 4-2 | 944788 | Crankshaft, ass'y | 1 | 4-39 | 944091 | Cylinder cover | 1 |
| 4-3 | 943597 | .Needle bearing | 1 | 4-40 | 944101 | Gasket | 1 |
| 4-4 | 911322 | Washer | 1 | 4-41 | 943992 | Insulator | 1 |
| 4-5 | 911323 | Washer | 1 | 4-42 | 943169 | Inlet pipe | 1 |
| 4-6 | 911320 | Shim (t0.1) | AR | 4-43 | 943978 | Screw | 2 |
| 4-6 | 943128 | Shim (t0.2) | AR | 4-44 | 943650 | Case | 1 |
| 4-6 | 943129 | Shim (t0.4) | AR | 4-45 | 943575 | Screw | 4 |
| 4-6 | 943130 | Shim (t0.6) | AR | 4-46 | 944583 | Flywheel | 1 |
| 4-7 | 944111 | Ball bearing (6001V3) | 2 | 4-47 | 944584 | Ignition coil | 1 |
| 4-8 | 944789 | Crankcase, ass'y | 1 | 4-48 | 943994 | Grommet | 1 |
| 4-9 | 071098 | .Dowel pin | 2 | 4-49 | 901564 | Washer | 1 |
| 4-10 | 071100 | .Dowel pin | 2 | 4-50 | 943142 | Spring washer | 1 |
| 4-11 | 071554 | .Stud | 4 | 4-51 | 943173 | Nut | 1 |
| 4-12 | 944790 | Damper | 1 | 4-52 | 071090 | Key | 1 |
| 4-13 | 911325 | Oil seal | 2 | 4-53 | 943998 | Lead wire | 1 |
| 4-14 | 943190 | Screw | 4 | 4-54 | 944110 | Lead wire | 1 |
| 4-15 | 943580 | Piston | 1 | 4-55 | 944109 | Bracket | 1 |
| 4-16 | 073343 | Piston ring set | 1 | 4-56 | 944108 | Igniter | 1 |
| 4-17 | 943943 | Piston pin | 1 | 4-57 | 943894 | Screw | 1 |
| 4-18 | 943581 | Snap ring | 2 | 4-58 | 944793 | Spiral case | 1 |
| 4-19 | 943589 | Gasket | 1 | 4-59 | 943161 | Stop switch | 1 |
| 4-20 | 944582 | Cylinder | 1 | 4-60 | 943995 | Cylinder cover | 1 |
| 4-21 | 901518 | Spring washer | 4 | 4-61 | 944113 | Clamp | 1 |
| 4-22 | 943265 | Nut | 6 | 4-62 | 943458 | Screw | 2 |
| 4-23 | 943188 | Gasket | 1 | 4-63 | 943644 | Screw | 2 |
| 4-24 | 943197 | Cylinder cover | 1 | 4-64 | 943574 | Screw | 4 |
| 4-25 | 943987 | Screw | 1 | 4-65 | 944794 | Screw | 4 |
| 4-26 | 943643 | Spark plug (BM6) | 1 | 4-66 | 944004 | Spring | 1 |
| 4-27 | 943771 | Spring | 1 | 4-67 | 944795 | Throttle cable | 1 |
| 4-28 | 943773 | Plug cap | 1 | ||||
| 4-29 | 943571 | Stud | 2 | ||||
| 4-30 | 943468 | Gasket | 1 | ||||
| 4-31 | 944791 | Muffler, ass'y | 1 | ||||
| 4-32 | 071104 | Washer | 2 | ||||
| 4-33 | 944585 | Muffler cover | 1 | ||||
| 4-34 | 944586 | Collar | 1 | ||||
| 4-35 | 944792 | Screw | 1 | ||||
| 4-36 | 944125 | Screw | 1 | ||||
| 4-37 | 944126 | Screw | 1 |
- ENGINE (CRANKCASE, CYLINDER)
(TF022H)
MARUYAMA U.S., INC.
| Ref.No. | Parts No. | Parts Name | Q'ty | Ref.No. | Parts No. | Parts Name | Q'ty |
| 5-1 | 111151 | Engine, ass'y (TF022H-AG22) | 1 | 5-38 | 577352 | Muffler, ass'y | 1 |
| 5-2 | 577347 | Crankshaft, ass'y | 1 | 5-39 | 573952 | Washer | 2 |
| 5-3 | 943597 | · Needle bearing | 1 | 5-40 | 577353 | Nut (M5) | 2 |
| 5-4 | 911320 | Shim (t = 0.1) | AR | 5-41 | 071090 | Key | 1 |
| 5-4 | 943128 | Shim (t = 0.2) | AR | 5-42 | 573964 | Flywheel | 1 |
| 5-4 | 943129 | Shim (5 = 0.4) | AR | 5-43 | 573965 | Ignition coil | 1 |
| 5-4 | 943130 | Shim (t = 0.6) | AR | 5-44 | 943644 | Bolt (M4 × 20) | 2 |
| 5-5 | 944111 | Ball bearing (6001V3) | 2 | 5-45 | 573966 | Grommet | 1 |
| 5-6 | 577348 | Crankcase, ass'y | 1 | 5-46 | 943968 | Grommet | 1 |
| 5-7 | 573908 | · Dowel pin | 2 | 5-47 | 071190 | Washer (M8) | 1 |
| 5-8 | 071100 | Dowel pin | 2 | 5-48 | 071615 | Spring washer (M8) | 1 |
| 5-9 | 071099 | Stud | 4 | 5-49 | 943173 | Nut (M8) | 1 |
| 5-10 | 573179 | Screw | 4 | 5-50 | 573967 | Grommet | 1 |
| 5-11 | 573958 | Oil seal | 2 | 5-51 | 573985 | Plate | 1 |
| 5-12 | 577349 | Flange | 1 | 5-52 | 577354 | Fan housing | 1 |
| 5-13 | 573973 | Screw (M5 × 16) | 4 | 5-53 | 573986 | Screw (M4 × 16) | 4 |
| 5-14 | 573955 | Piston | 1 | 5-54 | 573079 | Igniter | 1 |
| 5-15 | 073343 | Piston ring set | 1 | 5-55 | 943579 | Screw (M4 × 8) | 1 |
| 5-16 | 943943 | Piston pin | 1 | 5-56 | 944794 | Screw | 4 |
| 5-17 | 943581 | Snap ring | 2 | 5-57 | 577355 | Muffler protector | 1 |
| 5-18 | 943589 | Cylinder gasket | 1 | 5-58 | 577356 | Bolt | 2 |
| 5-19 | 573948 | Cylinder | 1 | ||||
| 5-20 | 071692 | Spring washer (M5) | 4 | ||||
| 5-21 | 944415 | Nut (M5) | 4 | ||||
| 5-22 | 571472 | Spark plug (BM7A) | 1 | ||||
| 5-23 | 943771 | Terminal | 1 | ||||
| 5-24 | 943773 | Plug cap | 1 | ||||
| 5-25 | 573961 | Gasket | 1 | ||||
| 5-26 | 573960 | Insulator | 1 | ||||
| 5-27 | 573962 | Gasket | 1 | ||||
| 5-28 | 572912 | Screw (M5 × 20) | 2 | ||||
| 5-29 | 943738 | Screw (M5 × 43) | 2 | ||||
| 5-30 | 944004 | Spring | 1 | ||||
| 5-31 | 944795 | Throttle wire | 1 | ||||
| 5-32 | 577350 | Washer | 2 | ||||
| 5-33 | 573984 | Shroud | 1 | ||||
| 5-34 | 573989 | Washer (φ 4.5 × φ 10 × t1.2) | 2 | ||||
| 5-35 | 573988 | Screw (M4 × 16) | 2 | ||||
| 5-36 | 577351 | Stud | 2 | ||||
| 5-37 | 573951 | Gasket | 1 |
- MODEL MS045D
Ref. # 6-1 CARBURETOR
- MODEL MS045
Ref. # 6-44 CARBURETOR
| Ref. No. | Parts No. | Parts Name | Q'ty |
| 6-1 | 544357 | Carburetor, ass'y | 1 |
| 6-2 | 573994 | Throttle valve | 1 |
| 6-3 | 573993 | Jet needle | 1 |
| 6-4 | 071145 | Snap ring | 1 |
| 6-5 | 943167 | Retainer valve | 1 |
| 6-6 | 071253 | Throttle spring | 1 |
| 6-7 | 071252 | Body cap | 1 |
| 6-8 | 071149 | Lock nut | 1 |
| 6-9 | 573992 | Cable adjuster | 1 |
| 6-10 | 577358 | Needle jet | 1 |
| 6-11 | 577359 | Main jet (#50) | 1 |
| 6-12 | 944322 | Screw (M3x6) | 1 |
| 6-13 | 944320 | Needle valve | 1 |
| 6-14 | 573189 | Arm | 1 |
| 6-15 | 943512 | Hinge pin | 1 |
| 6-16 | 944106 | Float | 1 |
| 6-17 | 944323 | Gasket | 1 |
| 6-18 | 944324 | Float chamber | 1 |
| 6-19 | 943896 | Screw (M4x16) | 2 |
| 6-20 | 943196 | Spring | 1 |
| 6-21 | 944316 | Slow stop screw | 1 |
| 6-22 | 944314 | Valve | 1 |
| 6-23 | 944478 | Choke lever | 1 |
| 6-24 | 944313 | Bolt | 1 |
| 6-25 | 944102 | Washer | 1 |
| 6-26 | 071153 | Nut | 1 |
| 6-27 | 944482 | Gasket | 2 |
| 6-28 | 944104 | Fuel valve, ass'y | 1 |
| 6-29 | 944481 | Filter | 1 |
| 6-30 | 944480 | Eye bolt | 1 |
| 6-31 | 574002 | Air cleaner, ass'y | 1 |
| 6-32 | 574003 | Air cleaner case | 1 |
| 6-33 | 943483 | Air filter | 1 |
| 6-34 | 574004 | Air filter cap | 1 |
| 6-35 | 574005 | Screw (M4x40) | 2 |
| 6-36 | 943590 | Air Cleaner, ass'y | 1 |
| 6-37 | 943193 | Air cleaner case | 1 |
| 6-38 | 943194 | Element | 1 |
| 6-39 | 944797 | Band | 1 |
| 6-40 | 944798 | Screw | 1 |
- ACCESSORIES, OPTIONAL ACCESSORIES
MARUYAMA U.S., INC.
| Ref. No. | Parts No. | Parts Name | Q'ty |
| 7-1 | 022540 | Fuel blending bottle (0.5) | 1 |
| 7-2 | 022097 | Box spanner (21) | 1 |
| 7-3 | 210418 | Box spanner (19) | 1 |
| 7-4 | 113046 | Instruction manual (MS045D) | 1 |
| 106372 | Instruction manual (MS045) | 1 | |
| 7-5 | 105633 | Hose ass'y (7.5x1300L) | 1 |
| 7-6 | 100707 | ·Packing (011.5x016xt2) | 1 |
| 7-7 | 100712 | ·Packing (07x010.5xt1.5) | 1 |
| 7-8 | 106357 | Nozzle/wand ass'y | |
| 7-9 | 814267 | ·Nozzle, ass'y | 1 |
| 7-10 | 103173 | ·Cap | 2 |
| 7-11 | 103172 | ·Orifice disc | 2 |
| 7-12 | 106358 | ·Strainer | 2 |
| 7-13 | 106359 | ·Packing | 2 |
| 7-14 | 103170 | ·Nozzle pipe | 1 |
| 7-15 | 028819 | ·Packing (012x016xt2) | 2 |
| 7-16 | 106360 | ·Nozzle pipe (PF1/4) | 1 |
| 7-17 | 107615 | ·Packing (07.5x011xt2) | 1 |
| 7-18 | 814268 | ·Grip, ass'y | 1 |
| 7-19 | 106361 | ·Grip (PF1/4) | 1 |
| 7-20 | 106362 | ·Valve rod | 1 |
| 7-21 | 106363 | ·Spring | 1 |
| 7-22 | 106364 | ·Washer (05.5x09.7xtl) | 1 |
| 7-23 | 014180 | ·O-ring (P5) | 1 |
| 7-24 | 106365 | ·Bush | 1 |
| 7-25 | 011681 | ·O-ring (P7) | 1 |
| 7-26 | 106366 | ·Guide | 1 |
| 7-27 | 106367 | ·Cap | 1 |
| 7-28 | 106368 | ·Spring pin | 1 |
| 7-29 | 106369 | ·Lever | 1 |
| 7-30 | 106370 | ·Washer | 1 |
| 7-31 | 020381 | ·E-ring | 1 |
| 7-32 | 106371 | ·Lock | 1 |
| Ref. No. | Parts No. | Parts Name | Q'ty |
| OPTIONAL ACCESSORIES | |||
| 7-33 | 996084 | Nozzle ass'y (Driftless) | 1 |
| 7-34 | 107487 | · Nozzle pipe | 1 |
| 7-35 | 107488 | · Packing | 2 |
| 7-36 | 107489 | · Strainer | 2 |
| 7-37 | 107490 | · Nozzle tip, ass'y | 2 |
PARTS LIST
MODEL MS045 & MS045D
- RECOIL STARTER
| Ref. No. | Parts No. | Parts Name | Q'ty |
| 8-1 | 573970 | Recoil starter, ass'y | 1 |
| 8-2 | 574008 | ·Recoil starter case | 1 |
| 8-3 | 574007 | ·Recoil spring | 1 |
| 8-4 | 944724 | ·Reel | 1 |
| 8-5 | 943467 | ·Spring, pawl | 1 |
| Ref. No. | Parts No. | Parts Name | Q'ty |
| 8-6 | 943221 | ·Spring, brake | 1 |
| 8-7 | 943220 | ·Pawl | 1 |
| 8-8 | 944328 | ·Retainer | 1 |
| 8-9 | 944801 | ·Screw | 1 |
| 8-10 | 944239 | ·Rope guide | 1 |
| 8-11 | 944240 | Rope (890L) | 1 |
| 8-12 | 944241 | ·Grip | 1 |
