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Forest Master Direct Drive Wood Chipper Model: FM6DD/FM4DDE FM6DD FM4DDE IMPORTANT: Read this manual fully before assembly and use and observe all safety rules and operating instruc- tions...
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FM6DD - 6hp Petrol Engine FM4DDE - 4hp Electric Motor The FM6DD and FM4DDE are wood chippers specifically designed to chip all kinds of wood that has been freshly cut up to 50mm (2”) diameter. NOTE: Do not insert wood over the diameter specified, roots or trunks, stones, plastic, metal or any other objects that are not specifically wood branches.
Do not chip seasoned wood, the chippers are designed for freshly cut soft and hard wood. • Do not operate the FM6DD inside or in a confined space; the exhaust from the engine contains carbon monoxide which is poisonous. •...
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If the machine starts to make an unusual noise or vibrate, shut down the engine, disconnect the spark plug wire (FM6DD) or plug socket (FM4DDE), wait 5 minutes for the engine or motor to cool down, then inspect for damage. Vibration is generally a warning of trouble.
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Safety with Petrol (FM6DD) Petrol is a highly flammable liquid. Petrol also gives off flammable vapour that can be easily ignited and cause a fire or explosion. Never overlook the hazards of petrol. Always follow these precautions: • Never run the engine in an enclosed area or without proper ventilation as the exhaust from the engine contains carbon monoxide, which is an odourless, tasteless and a deadly poisonous gas.
(45) through the small holes on the outer of the axle (46). Finally, place each dome cap (48) on the ends of the axle (46) and secure the cap by tapping it with a mallet or hammer. Forest Master Model: FM6DD/FM4DDE...
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Fasten the motor (60) with the M8 bolts (56), M8 washers (33) and M8 Lock Nuts (57). The order of assembly is: [Bolt] – [Washer] – [Base] – [Motor] – [Washer] – [Lock Nut]. FM6DD FM4DDE Forest Master Model: FM6DD/FM4DDE...
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M6 bolts (51) the M6 washer (41) and the M6 spring washer (59). There is a thread in the drum housing to fasten the bolt into. The order of assembly is: [Bolt] – [Spring Washer] – [Washer] – [Feed Hopper] – [Drum Housing]. Forest Master Model: FM6DD/FM4DDE...
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12. Fasten the other side of the discharge chute (34) to the top of the drum housing (14) through the bolt holes using the M6 bolts (50), M6 spring washers (59) and M6 washers (41). The order of assembly is: [Bolt] – [Spring Washer] – [Washer] – [Discharge Chute] – [Drum Housing]. Forest Master Model: FM6DD/FM4DDE...
Operation Engine Operation for FM6DD Petrol Chipper Starting the Engine • Position your wood chipper on flat, dry ground and make sure the machine cannot be moved. • Before starting, manually turn the drum to make sure it is not obstructed and moves smoothly.
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• Do not feed the chipper any foreign materials (stones, metal, plastic, string, textile etc.) • Do not use implements (i.e. fork or shovel) to feed the machine, especially not to push the wood through. Forest Master Model: FM6DD/FM4DDE...
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Never attempt to unblock the machine whilst the chipper is running. • If the drum stops while chipping, stop the engine IMMEDIATELY and remove the spark plug (FM6DD) or disconnect the power cable (FM4DDE). • Unhinge either the feed hopper or discharge chute by loosening the bolt on the bottom of chute and lifting it upward to allow access to the drum.
Replace Spark Plug Engine Oil (FM6DD) The FM6DD does not have a dipstick in order to check the oil level. To ensure the oil level is sufficient, remove the oil cap on the side of the engine (next to the discharge chute) and make sure that the oil is full to the brim of the cap.
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Engine/Motor Servicing For the service of the petrol engine (FM6DD) refer to the engine manufacturer’s user manual. If you need help accessing the manual, contact Forest Master. Replacing and Sharpening the Blades To remove the blades for sharpening or replacement you will need an appropriate socket with no leading taper, as the bolt heads are shallow.
If further help is required, contact our technical line on: 0191 276 6553. Before performing any maintenance procedure or inspection, stop the engine, wait 5 minutes to allow all parts to cool. Disconnect the spark plug (FM6DD) or the power cable (FM4DDE). Symptom Possible Cause The engine won’t...
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Is there a blockage in the drum? Inspect the drum and remove any potential blockages. • Does the motor need to be reset? Press the reset button on the motor (next to the on off switches). Forest Master Model: FM6DD/FM4DDE...
The unit, if it has not been operated and/or maintained in accordance with the owner’s manual. Normal wear. Routine maintenance items such as lubricants and blade sharpening. Normal deterioration of the exterior finish due to use or exposure. Forest Master Model: FM6DD/FM4DDE...
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