1. Manuals
  2. Brands
  3. Ronix Manuals
  4. Brush Cutter
  5. 4552B
  6. User manual

Ronix 4552B User Manual

Backpack gasoline
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
BACKPACK GASOLINE BRUSH CUTTER
4552B

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 4552B and is the answer not in the manual?

Questions and answers

Related Manuals for Ronix 4552B

Summary of Contents for Ronix 4552B

  • Page 1 BACKPACK GASOLINE BRUSH CUTTER 4552B...

  • Page 2: Specifications

    Brush cutter: 255mm Grass trimmer: Cutting Capacity 430mm 3T metal blade, Nylon trimming head, Includes Guard, Shoulder harness, Mixing oil bottle, Hex key Supplied in Ronix color box PARTS LIST ON/OFF Switch Throttle lock out Back Pack Hose Aluminum Tabe Handle Blade &...
  • Page 3 GENERAL SAFATY TIPS The machine is only designed for cutting bushes and trimming grass. The only accessories you can operate with this engine unit are the cutting attachments we recommend in the chapter on Technical data. Never use the machine if you are tired, if you are ill, if you have drunk alcohol, or if you are taking medication that could affect your vision, your judgement or your co-ordination.

  • Page 4: Personal Protective Equipment

    death due to asphyxiation or carbon monoxide poisoning. PERSONAL PROTECTIVE EQUIPMENT IMPORTANT: - A brush cutter or trimmer can be dangerous if used incorrectly or carelessly, and can cause serious or fatal injury to the operator or others. It is extremely important that you read and understand the contents of this operator’s manual.

  • Page 5: Machine's Safety Equipment

    GLOVES Gloves should be worn when necessary, e.g., when fitting cutting attachments. BOOTS Wear boots with steel toe-caps and non-slip sole. CLOTHING Wear clothes made of a strong fabric and avoid loose clothing that can catch on twigs and branches. Always wear heavy, long pants. Do not wear jewelers, shorts sandals or go barefoot.
  • Page 6 of professional repairs and service. If the retailer who sells your machine is not a servicing dealer, ask him for the address of your nearest service agent. IMPORTANT: - Never use a machine with faulty safety equipment. The machine’s safety equipment must be checked and maintained as described in this section.

  • Page 7: Throttle Lockout

    THROTTLE LOCKOUT The throttle lockout is designed to prevent accidental operation of the throttle control. When you press the lock (A) (i.e. When you grasp the handle) it releases the throttle control (B). When you release the handle the throttle control and the throttle lockout both move back to their original positions.

  • Page 8: Engine Switch

    Check that the throttle control and throttle lockout move freely and that the return springs work properly. See instructions under the heading Start. Start the machine and apply full throttle. Release the throttle and check that the cutting attachment stops and remains at a standstill. If the cutting attachment rotates with the throttle in the idle position, then the carburetor idle setting must be checked.

  • Page 9: Vibration Damping System

    WARNING! Never use a cutting attachment without an approved guard. See the chapter on Technical data. If an incorrect or faulty guard is fitted this can cause serious personal injury. VIBRATION DAMPING SYSTEM Your machine is equipped with a vibration damping system that is designed to minimize vibration and make operation easier.

  • Page 10: Quick Release

    QUICK RELEASE There are two easily accessible, quick releases fitted at the front and side as a safety precaution in case the engine catches fire, or in any other situation that requires you to free yourself from the machine and harness.

  • Page 11: Locking Nut

    Avoid contact with these elements in the event of a damaged muffler. Bear in mind that: The exhaust fumes from the engine are hot and may contain sparks which can start a fire. WARNING! Never start the machine indoors or near combustible material LOCKING NUT A locking nut is used to secure some types of cutting attachment.

  • Page 12: Cutting Equipment

    CAUTION! The nut has a left-hand thread. Tighten the nut using the socket spanner. The nylon lining inside the locking nut must not be so worn that you can turn it by hand. The lining should offer a resistance of at least 1.5 NM. The nut should be replaced after it has been put on approx.

  • Page 13: Trimmer Head

    WARNING! Using an incorrect cutting attachment or an incorrectly sharpened blade increases the risk of blade thrust. - Grass blades and grass cutters are intended to cut weeds, brush, small trees and similar vegetation. TRIMMER HEAD WARNING! Always ensure the trimmer cord is wound tightly and evenly around the drum, otherwise the machine will generate harmful vibration.

  • Page 14: Fitting The Main Body

    The length of the cord is also important. A longer cord requires greater engine power than a shorter cord of the same diameter. Make sure that the cutter on the trimmer guard is intact. This is used to cut the cord to the correct length.

  • Page 15: Assembling The Flexible Shaft

    ASSEMBLING THE FLEXIBLE SHAFT Pull out the locking pin (K). Align the flexible shaft (H) and the clutch (J), and insert the flexible shaft tube (G) into the clutch cover until the position hole (G1) align with the locking pin (K). Loosen the locking pin. CONNECT THE THROTTLE CABLE Connect the operation cable (L) and the throttle cable (M).

  • Page 16: Fitting Blades And Trimmer Heads

    FITTING BLADES AND TRIMMER HEADS WARNING! When fitting the cutting attachment, it is extremely important that the raised section on the top clamping plate/support flange engages correctly in the center hole of the cutting attachment. If the cutting attachment is fitted incorrectly it can result in serious and/or fatal personal injury.

  • Page 17: Fitting A Blade Guard, Grass Blade And Grass Cutter

    Use a screw (E) fix the fitting (C) on the gear box (B). Hook the guard (A) onto the fitting, and then secure with a bolt (D). The guard extension is removed easily using a screwdriver,see illustration. FITTING A BLADE GUARD, GRASS BLADE AND GRASS CUTTER Use a screw (E) fix the fitting (C) on the gear box (B).

  • Page 18: Fitting The Trimmer Guard And Trimmer Head

    - Place the saw blade (C), bottom clamping plate (D) and bottom protecting cap (E) on the output shaft. - Fit the nut (F). The nut must be tightened to a torque of 35-50 Nm. Use the socket spanner in the tool kit. Hold the shaft of the spanner as close to the blade guard as possible.

  • Page 19: Adjusting The Harness And Brush Cutter

    - Insert the locking pin (A) in the hole to lock the shaft. - Screw on the trimmer head (D) in the opposite direction to the direction of rotation. - To dismantle, follow the instructions in the reverse order. ADJUSTING THE HARNESS AND BRUSH CUTTER WARNING! When using a brush cutter, it must always be hooked securely to the harness.

  • Page 20: Correct Balance

    CORRECT BALANCE Let the cutting attachment rest lightly on the ground. Adjust the position of the suspension ring to balance the brush cutter correctly. FUEL SAFETY Never start the machine: - If you have spilt fuel on it. Wipe off the spillage and allow remaining fuel to evaporate.
  • Page 21 FUEL WARNING! Take care when handling fuel. Bear in mind the risk of fire, explosion and inhaling fumes. CAUTION! The machine is equipped with a two-stroke engine and must always been run using a mixture of petrol and two-stroke oil. It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained.

  • Page 22: Two-Stroke Oil

    TWO-STROKE OIL - For best results and performance use two-stroke engine oil, which is specially formulated for our air-cooled two-stroke engines. - Never use two-stroke oil intended for water-cooled engines, sometimes referred to as outboard oil (rated TCW) - Never use oil intended for four-stroke engines. - A poor oil quality and/or too high oil/fuel ratio may jeopardize function and decrease the life time of catalytic converters.

  • Page 23: Check Before Starting

    - Always shut off the engine before refueling. - Always stop the engine and let it cool for a few minutes before refueling. - When refueling, open the fuel cap slowly so that any excess pressure is released gently. - Tighten the fuel cap carefully after refueling. - Always move the machine away from the refueling area before starting.
  • Page 24 Check that the support flange is not cracked due to fatigue or due to being tightened too much. Discard the support flange if it is cracked. Ensure the locking nut has not lost its captive force. The nut lock should have a locking force of at least 1.5 NM.

  • Page 25: Primer Bulb

    PRIMER BULB Press the air purge repeatedly until fuel begins to fill the bulb. The bulb need not be completely filled. CHOKE Set the choke knob(A) in the choke position. WARNING! The complete clutch cover and shaft must be fitted before the machine is started, otherwise the clutch can come loose and cause personal injury.

  • Page 26: Starting And Stopping

    STARTING AND STOPPING Ignition: Press down the “I” side of the engine switch. WARNING! The choke will automatically return to the run position by operating the throttle trigger. If you manually turn the choke knob from choke position to run position, the cutting attachment will start to rotate immediately when the engine is started.

  • Page 27: Working Techniques

    CAUTION! Do not pull the starter cord all the way out and do not let go of the starter handle when the cord is fully extended. This can damage the machine. CAUTION! Do not put any part of your body in marked area. Contact can result in burns to the skin, or electrical shock if the spark plug cap has been damaged.
  • Page 28 CAUTION! Do not use the machine unless you are able to call for help in the event of an accident. Inspect the working area. Remove all loose objects, such as stones, broken glass, nails, steel wire, string, etc. that could be thrown out or become wrapped around the cutting attachment.
  • Page 29 machine immediately if anyone approaches. Never swing the machine around without first checking behind you to make sure no- one is within the safety zone. Basic working techniques Always slow the engine to idle speed after each working operation. Long periods at full throttle without any load on the engine can lead to serious engine damage.

  • Page 30: Grass Trimming With A Trimmer Head

    - Let the support cup rest lightly against the ground. It is used to protect the blade from hitting the ground REDUCE THE RISK OF MATERIAL WRAPPING AROUND THE BLADE BY FOLLOWING THESE INSTRUCTIONS: 1) Always work at full throttle. 2) Avoid the previously cut material during the return stroke.

  • Page 31: Adjusting The Idle Speed (T)

    CAUTION! - This technique increases the wear on the cord. - The cord wears quicker and must be fed forward more often when working against stones, brick, concrete, metal fences, etc., than when coming into contact with trees and wooden fences. - When trimming and clearing you should use less than full throttle so that the cord lasts longer and to reduce the wear on the trimmer head.

  • Page 32: Air Filter

    (turn clockwise) the idle adjustment screw T, with the engine running, until the cutting attachment starts to rotate. Open (turn anticlockwise) the screw until the cutting attachment stops. The idle speed is correctly set when the engine runs smoothly in all positions, and there is a clear margin to the speed at which the cutting attachment starts to rotate.

  • Page 33: Clean The Filter

    CLEAN THE FILTER every 25 hours, or more regularly if conditions are exceptionally dusty. Cleaning the air filter Remove the air filter cover and take out the filter. Wash it clean in warm, soapy water. Ensure that the filter is dry before refitting it. An air filter that has been in use for a long time cannot be cleaned completely.

  • Page 34: Spark Plug

    except if repairs are carried out. SPARK PLUG The spark plug condition is influenced by: - Incorrect carburetor adjustment. - An incorrect fuel mixture (too much or incorrect type of oil). - A dirty air filter. These factors cause deposits on the spark plug electrodes, which may result in operating problems and starting difficulties.

  • Page 35: Maintenance Schedule

    MAINTENANCE SCHEDULE The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the Maintenance section. The user must only carry out the maintenance and service work described in this Operator’s Manual. More extensive work must be carried out by an authorized service workshop.
  • Page 36 Check that the locking nut of the cutting equipment is tighten correctly. Check that the transport guard for the blade is intact and that it can be secured correctly. Check that nuts and screws are tight. Check that there are no fuel leaks from the engine, tank or fuel lines.

Table of Contents