Shredder Grinder maintenance

Les conseils Pubert sur l'entretien du broyeur de branches

THE MAINTENANCE OF SHREDDER

FROM START TO THE USE

You just bought a shredder produced by Pubert. Our machines have been designed to be reliable and durable. Like any mechanical system, your machine needs to be maintained regularly in order to enable the best use, the longer possible.

Our distribution network can answer your needs for the maintenance of your material.


STARTING

Most of our dealers will have the machine prepared for your immediate use in the garden. If this is not the case, the machine is sold with an operation manual. You will find a chapter on the assembly and the starting. Please follow it rigorously to start in the best conditions.

IMPORTANT : Once the machine is assembled, proceed to the oiling of the engine: oil type and quantity are specified in the manual. After these steps, you can fill the fuel tank and start the machine.

SIMPLE ACTIONS TO ENSURE THE LIFETIME OF YOUR MACHINE

A regular and systematic maintenance after each use of your shredder will not take much time and will ensure comfort and security for the next use. For more complex interventions, such as engine or knives maintenance, do not hesitate to contact a professional.

Cleaning: For better security conditions, wait for the exhaust pipe to cool, then disconnect the spark plug. On the electric shredder, unplug it from the power outlet. Wear heavy gloves, remove the branches from the channel. Follow the instructions of the supplied manual to dismantle the loading spout. Unscrew completely the cleaning hatch lever. Slightly swivel the trap to be able to pull it, then swivel it down completely. Through this access, proceed to a complete cleaning of the shredding chamber and the rotor: Remove the shredding debris and scratch if needed the rotor with a metallic scraper. Close the cleaning trap. Make sure the lever is completely screwed because a contactor prevents from starting as long as the lever has not been screwed completely. Remove the dust from the rest of the machine with a brush

Controls before each use: Check the knives conditions, there must be no crack. Check the tightening of their fixing screws. Check the condition and fixation of the loading spout flap. Check the electrical wiring conditions. Check that all screws and nuts are well tightened.

Annual or every 50hours checking to be done by your approved repairer:

Greasing of the bearing. Control of the electrical wiring condition. Control of the counter knives and the clearance between the knives and the counter knives: it must be between 2mm and 3mm. Replacement of the knives and the fixing nuts by complete kit in order to preserve the balance of the rotor. Respect a tightening torque of 24 N.m. Warning: only use the knives, the cutting blades and the fixing screws specifically designed for your shredder.

KNIVES

The knives ensures the branches cutting, they must be sharp to produce a quality job. They must be sharpened approximately every 20 hours of use, this duration depends on the nature of branches cut. A cracked or blunt knife must be replaced. This operation of sharpening or replacement of knives must be effectuated by a professional.

AIR FILTER MAINTENANCE (HEAT ENGINE SHREDDER)

A dirty air filter can cause a difficult starting, a loss of power, a bad functioning and an accelerated wear of the engine. The cleanliness of the air filter must always be guaranteed. Inspect the air filter condition after each use, clean it if needed or at least every 25 hours. Change the filtering element every 200 hours or if it shows some weaknesses. Several types of air filters exist according to the engine: Foam air filter: Remove the element and clean it with gasoline. Dry it in the sun. Saturate with engine oil, then press firmly to spread evenly the oil and remove the excess. Put it back into its place, respecting the fitting orientation. Dual-element air filter: Remove the foam filter from the paper filter. Check both elements and replace them if they are damaged. To clean the paper filter, tap the filter on a hard surface many times to eliminate the dirt or blow compressed air (2Bars max) from the inside. Do not use a brush for this operation. To clean the foam element: see previous chapter. Clean the base and plastic cover of the filter. Put all elements back in place. Oil bath filter: Remove the cover, remove and clean the foam filter (see previous chapter). Remove the tank and empty it in a suitable container. Clean the tank with liquid detergent and water then dry it. Replace all elements and add fresh engine oil SAE 10W30 in the tank of the filter. Filling level is indicated on the tank. Oil draining must be done every 25 hours or once a year. The air filter must be cleaned regularly, even more if the environment is dusty. For more explanations, see engine instruction manual or contact your dealer.

ENGINE OIL (HEAT ENGINE SHREDDER)

Level checking: it is important to check the engine oil level before each use. To do so, place the machine on even ground. The engine support must be horizontal. The oil cap is located on the front of the engine, it is also the level gauge. Unscrew the cap, take it out and wipe the gauge. The checking is done by putting the cap at its place without screwing. Read on the gauge the oil level, which must be between the low and high level, inside the hatched area. The level must always be correct. If not, add SAE 10W30 oil for 4-stroke engine. Draining: the first draining must be done after 10 hours or 1 year, whichever comes first. Then we recommend every 50 hours or 3 years, whichever comes first. For this operation, you must make an appointment at your dealer’s or in a workshop specialized in mechanical garden [...]tools.

STORAGE

  • Disconnect the spark plug and close the fuel supply (heat engine) or the power cable (electric shredder).
  • Loosen the 4 nuts fixing the loading spout to have it saved in the captive screws. Lift the loading spout to have the nuts go through the flange then pull the channel. Put the protection trap and block the 2 nuts. Place the channel in its holder by the handle.
  • Check that every nuts and screws are well tightened.
  • The machine must be stored in a dry and ventilated area.
  • If you do not use your shredder for a long time, please follow above instructions:
  • Empty the fuel tank. Let the engine run until it runs out of fuel to drain the whole fuel system. In order to avoid any problem at starting due to the soiling of the carburetor by a deteriorated fuel, you can use a ready for use fuel, available in shops: this alkylated fuel contains less harmful products and avoids the scrubbing of the carburetor.