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Owner’s Manual 

2965020 (3700LS-H) 

Instructions for Assembly, Testing, Operation, 

Servicing, & Storage 

 

Log Splitter: Outdoor hydraulic powered machine that 

splits wood logs. 

 

WARNING 

READ and UNDERSTAND this manual completely before using log splitter. 

All operators of this equipment must read and completely understand all safety information, operating instructions, 
maintenance and storage instructions.  Failure to properly operate and maintain the log splitter could result in serious 
injury to the operator or bystanders from moving parts that can crush or cut, flying objects, burns, fire or explosion, 
escaping high pressure hydraulic fluid, or carbon monoxide poisoning.  In particular, be aware of the following 
hazards: 

Crush and Cut Hazards 

Moving parts can crush and cut hands and fingers.  Keep hands clear of endplate, wedge, log strippers, and logs 
while splitting. 

High Pressure Hydraulic Fluid Hazards 

High fluid pressures and temperatures are developed in hydraulic log splitters.  Hydraulic fluid escaping through 
even a pin-size hole opening can puncture skin and cause severe blood poisoning.  Inspect hydraulic system 
regularly for possible leaks.  Never check for leaks with your hand while the system is pressurized.  Seek medical 
attention immediately if injured by escaping fluid. 

Fire Hazards 

 

If your log splitter is intended for use near any ignitable forest, brush, or grassy covered land, the engine 
exhaust should be equipped with a spark arrestor.  

 

Keep a fire extinguisher with you, rated for ordinary combustibles and flammable liquids.

 

 

STOP! 

ASSEMBLY REQUIRED:  

This product requires assembly before use.  See “Assembly” section for instructions. 

INSPECT COMPONENTS.  

Closely inspect upon receipt to make sure no components are missing or damaged.  

See “Assembly” section for instructions on whom to contact to report missing or damaged parts.

 

ADD ENGINE OIL and HYDRAULIC OIL BEFORE USING:

  This product is shipped without engine oil or 

hydraulic oil. DO NOT start log splitter before adding both oils.  See “Assembly” and “Initial Unpacking & Set-
up” sections for detailed instructions.

 

Any Questions, Comments, Problems or Parts Orders 

Call your dealer or Dosko Customer Service 1-800-822-0295

ITEM NUMBER:

 2965020 

 

 

SERIAL NUMBER: 
_______________

 

M2965020D

 

Summary of Contents for M2965020D

Page 1: ...pin size hole opening can puncture skin and cause severe blood poisoning Inspect hydraulic system regularly for possible leaks Never check for leaks with your hand while the system is pressurized Seek medical attention immediately if injured by escaping fluid Fire Hazards If your log splitter is intended for use near any ignitable forest brush or grassy covered land the engine exhaust should be eq...

Page 2: ...Hazard Signal Word Definitions 2 ...

Page 3: ...fore Each Use Step One Inspection Maintenance 13 Step Two Fueling 15 Step Three Work site Selection Set up 16 Splitting Operation 17 Storage 23 Periodic Maintenance 24 Troubleshooting 26 Specifications 27 Parts Breakdown Exploded View 28 Summary of Important Safety Information for Operation 30 Disassembly Instructions 36 Assembly Instructions 37 Limited Warranty 39 ...

Page 4: ...am The vertical splitting position is used for heavier logs that are difficult to load onto the beam The technical specifications for your log splitter are provided in the Specifications section of this manual WARNING This log splitter uses a high pressure hydraulic system to generate a very strong splitting force Read the manual completely before using the machine to understand how to safely oper...

Page 5: ...Monoxide Warning 1 6 789236 Towing and Moving Instructions 1 7 777891 High Pressure Hydraulic Fluid Hazard 1 8 777890 Fire Hazard 1 9 787944 Pinch Point Warning 3 10 777887 Operating Instructions 1 11 778717 Log Stripper Warning 2 Always make sure safety labels are in place and in good condition If a safety label is missing or not legible order new labels or unsafe operation could result ...

Page 6: ...Safety Label Location 6 9 10 11 1 2 3 4 5 6 7 8 ...

Page 7: ...4 Lift Handle 3 Split Control Lever 15 Horizontal Lock 4 Wedge 16 Suction Strainer 5 Cylinder 17 Magnetic Drain Plug 6 Engine Guard 18 Hydraulic Tank 7 Engine 19 Vertical Lock 8 Hydraulic Oil Dipstick 20 Beam 9 Return Line Filter 21 Fender 10 Jack 22 Fuel On Off 11 2 Coupler 23 Engine On Off 12 Safety Chains ...

Page 8: ...Assembly Testing Step Two Add Oil to Engine Add oil to engine Using a funnel add SAE 10W 30 oil up to the FULL mark on the dipstick See engine Owner s Manual for oil capacity and location of fill cap Step Three Add Hydraulic Oil to Reservoir 1 Remove hydraulic oil dipstick 2 Refer to the Specifications section for approximate hydraulic oil capacity 3 Fill reservoir with 10 wt AW32 ASLE H 150 or IS...

Page 9: ... inspecting or servicing the hydraulic components of the log splitter Stop the engine disconnect the spark plug and move the split control lever back and forth to relieve pressure before changing or adjusting hydraulic system components such as hoses tubing fittings or other components NEVER check for leaks with your hand Leaks can be located by holding a piece of cardboard or wood at least two fe...

Page 10: ...er engine is off Never move the log splitter with its engine running 3 Fuel Valve Off Turn fuel valve off to prevent carburetor flooding and reduce the chance of fuel leakage 4 Lock Jack in Down Position Lock jack in down position before you move the log splitter 5 Move Log Splitter to Work Site or Tow Hitch Roll the splitter by hand either directly to chosen work site or to vehicle hitch for towi...

Page 11: ...carburetor flooding and reduce the chance of fuel leakage 6 Attach to Hitch 2 ball Attach log splitter to vehicle hitch 1 Attach log splitter s coupler to a class 2 or higher hitch with 2 ball only 2 Adjust coupler to ball by raising locking lever and turning lock nut with fingers 3 Proper adjustment is obtained when coupler is as tight as possible on ball and locking lever can still be opened and...

Page 12: ... On public roads If towing on a public road make sure to comply with all local state and federal towing requirements It is the sole responsibility of the purchaser to obtain licensing trailer lights safety chains or signage as needed to comply Unattended Turn off the towing vehicle before leaving the splitter unattended Under the influence Never tow or operate this splitter while under the influen...

Page 13: ...ure engine is off and cool 2 Disconnect the spark plug 3 Relieve all hydraulic system pressure by moving the split control lever back and forth several times 2 Remove debris Remove debris from engine muffler and moving parts 1 Engine debris Debris on a hot engine can be a fire hazard Clean debris and chaff from engine cylinder head cylinder head fins blower housing rotating screen and muffler area...

Page 14: ...other end over the suspected area wear eye protection Look for discoloration of the cardboard or wood NEVER adjust the pressure setting of the pump or valve If injured by escaping fluid no matter how small the wound is see a doctor at once A typical injection injury may be a small puncture wound that does not look serious However severe infection or reaction can result if proper medical treatment ...

Page 15: ...pproved container NEVER pump fuel directly into engine at gas station Static charge can build and ignite fuel Use a UL approved fuel container to transfer gas to the engine Don t overfill DO NOT overfill the gas tank Allow at least 1 2 of empty space below the fill neck to allow for fuel expansion Heat flames sparks Stay away from sources of heat flame or sparks while adding fuel 5 Spills splashes...

Page 16: ...These spaces can trap poisonous gases EVEN if you run a fan or open windows If you start to feel sick dizzy or weak while using the log splitter shut off the engine and get to fresh air RIGHT AWAY See a doctor You may have carbon monoxide poisoning 2 Fire precautions Take the following precautions against fire 1 IMPORTANT If your splitter will be used near any unimproved forest brush or grassy cov...

Page 17: ...tting control o Splitting wedge NEVER attempt to change the height or speed of the splitting wedge o Pressure setting NEVER increase the pressure setting of the pump or control valve Safety equipment controls Always operate the log splitter with all safety equipment in place and in good working order and all controls properly adjusted for safe operation Know how to stop Be thoroughly familiar with...

Page 18: ...al or vertical splitting position The HORIZONTAL splitting position is used for lighter logs that can be easily loaded onto the beam The VERTICAL splitting position is used for light logs as well as heavy logs that are difficult to load onto the beam Note Musculoskeletal injury can result from lifting logs onto the log splitter if proper lifting techniques are not used or the logs are too heavy fo...

Page 19: ...ne Cold hydraulic oil can damage the hydraulic pump b If outdoor air temperature is below 32o F allow log splitter to warm up by extending and returning the wedge several times before splitting wood WARNING Burns To avoid burns stay clear of hot muffler if you are starting a warm engine Carbon monoxide The running engine gives off carbon monoxide a poisonous gas that can kill you You CANNOT smell ...

Page 20: ...r straddle reach across or step over the beam while the engine is running You could trip actuate the controls and get seriously injured Unsplit log pile Do not pile logs to be split in a place that will make you reach across the log splitter in order to load them Square log ends Logs that are not cut square can slide out while splitting and become a safety hazard or cause excessive force to log sp...

Page 21: ...able or other remote device to actuate the control Second person Many accidents occur when there is more than one person involved in loading and operating the log splitter Only one person should operate the controls If a second person is assisting in loading logs the operator must NEVER actuate the Split Control Lever until the assistant and all bystanders are at least 10 feet away NEVER allow an ...

Page 22: ...ed toward the operator or bystanders or the splitter could become damaged 9 Return wedge Move Split Control Lever away from end plate to return wedge Once the control valve is actuated in the return direction the wedge is designed to keep returning by itself completely and then stop automatically WARNING Stay clear while the wedge is returning It is still powerful enough on the return stroke to ca...

Page 23: ... fuel storage life 2 Leave the fuel valve lever in the OFF position to reduce the possibility of fuel leakage Long Term Storage between infrequent uses and at end of season Drain the fuel tank and carburetor as instructed in the engine owner s manual Important Safety Instructions Always drain fuel from tank in outdoor well ventilated area Stay away from sources of heat flame or sparks while handli...

Page 24: ...or leaks with your hand Leaks can be located by holding a piece of cardboard or wood at least two feet long with your hand at one end and passing the other end over the suspected area wear eye protection Look for discoloration of the cardboard or wood o NEVER adjust the pressure setting of the pump or valve o If injured by escaping fluid no matter how small the wound is see a doctor at once A typi...

Page 25: ... Apply a small amount of lubricant to the new canister seal 6 Install the new canister and hand tighten 3 8 to 1 2 turn after gasket makes contact with head 3 Spark arrestor muffler If the engine is equipped with a spark arrestor muffler clean and inspect it regularly follow manufacturer s service instruction Replace if damaged Bolt Torque Chart Bolt Size Location Bolt Grade Lubricated Nut Torque ...

Page 26: ... and passing the other end over the suspected area wear eye protection Look for discoloration of the cardboard or wood If injured by escaping fluid no matter how small the wound is see a doctor at once A typical injection injury may be a small puncture wound that does not look serious However severe infection or reaction can result if proper medical treatment is not administered immediately by a d...

Page 27: ...estor Yes Fuel Valve Yes Overall Dimensions 93 L x 43 W x 44 H Dry Weight 725 lbs Replacement Filter 788283 1 If the log splitter will be run for long periods of time in outdoor temperatures above 70 F we recommend changing the hydraulic oil to DEXTRON III The manufacturer reserves the right to make improvements in design and or changes in specifications at any time without incurring any obligatio...

Page 28: ...Parts Breakdown Exploded View Rev D 28 ...

Page 29: ...4 1 Slotted Nut 2 23 782689 18 Lanyard 1 76 780202 Tire 2 24 788040 Manual Tube 1 77 788301 Hub Seal Bearing Assembly 2 25 82087 5 16 18 x 75 HHCS Bolt 7 78 788085 38 5 Torsion Axle 1 26 82019 5 16 18 SF Nut 3 79 82339 5 8 11 x 1 25 HHCS Bolt 4 27 788152 Tounge Weldment 1 80 82286 5 8 Flat Washer 4 28 1130 27 Chain 2 81 82288 5 8 11 Class G Nut 5 29 82108 3 8 16 x 3 HHSF Bolt 1 82 82472 5 8 11 x 3...

Page 30: ... Do not allow anyone to operate the log splitter who has not read the owner s manual or been instructed on the safe use of the splitter Minimum Operator Age Never allow anyone under age 16 to operate the log splitter Anyone 16 years of age and older must be trained and supervised by a trained adult Safety in Moving and Towing the Log Splitter WARNING The log splitter is very heavy It can cause ser...

Page 31: ...ot use the log splitter while it is connected to the towing vehicle Safety Before Use Read instruct Read manual Do not allow anyone to operate the log splitter who has not read the owner s manual or has not been instructed on the safe use of the splitter Review safety rules Before starting this log splitter review the Rules for Safe operation Failure to follow these rules may result in serious inj...

Page 32: ...cardboard or wood at least two feet long with your hand at one end and passing the other end over the suspected area wear eye protection Look for discoloration of the cardboard or wood o Stop the engine disconnect the spark plug and move all control valve handles back and forth to relieve pressure before changing or adjusting hydraulic system components such as hoses tubing fittings or other compo...

Page 33: ...a fan or open windows If you start to feel sick dizzy or weak while using the log splitter shut off the engine and get to fresh air RIGHT AWAY See a doctor You may have carbon monoxide poisoning Safety During Use General Safety During Use WARNING Before starting this log splitter review the following rules for safe operation Failure to follow these rules may result in serious injury to the operato...

Page 34: ...log in place while the operator actuates the Split Control Lever Loading Unloading Unsplit log pile Do not pile logs to be split in a place that will make you reach across the log splitter in order to load them Hold bark side Hold the bark side of logs when loading or positioning never the ends Never place your hands or any part of your body between a log and any part of the log splitter NOTE for ...

Page 35: ... contact with hot muffler Remove engine debris Debris on a hot engine can be a fire hazard With the engine off clean debris and chaff from engine cylinder head cylinder head fins blower housing rotating screen and muffler areas Avoid contact with hot muffler Let engine cool before storing Let engine cool for at least five minutes before storing A hot engine can be a fire hazard Storage location St...

Page 36: ... packaging 2 Pull jack latch and swing jack down Lift tongue and swing jack down Crank jack down until the splitter sits level 3 Remove lag bolts Remove lag bolts from metal bands on ends of package with nut driver Metal bands will come off with bolts 4 Use a hammer and crowbar to remove boards from the package starting at the top of the crate and working down to the bottom Lock jack in DOWN posit...

Page 37: ...ing position on tongue by removing bolts Place coupler on tow bar Use 1 2 x 3 Flange Bolts and 1 2 Flange Nuts to fasten coupler to the tow bar Using a Torque Wrench Tighten BOTH Bolts to 57 lb ft WARNING Failure to secure these bolts could result in the coupler separating from the log splitter during towing Coupler Tow Bar Nut Bolt ...

Page 38: ...38 This page was intentionally left blank ...

Page 39: ...as to affect its stability performance or operation nor which has been subjected to misuse abuse negligence or accident The owner is responsible for all regular maintenance as explained in the operator s manual Neglect in regular maintenance or failure to replace normal wear items such as knives bed knife lubrication oils filters belts bearings etc may void warranty Your authorized Dosko dealer wi...

Page 40: ...40 Great Northern Equipment Distributing Inc 20195 S Diamond Lake Rd Ste 100 Rogers MN 55374 Assembled in USA ...

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