Tomahawk PMF18 Power Concrete Saw Operation and Instruction Manual
Table of Contents 1. Safety Information ------------------------------------------------------------------------ 3 1.1 Safety Precautions ------------------------------------------------------------------------------ 3 1.2 Operating Safety --------------------------------------------------------------------------------- 4 1.3 Operator Safety while using Internal Combustion Engines ---------------------------- 6 1.
This manual provides information and procedures to safely operate and maintain this model. For your own safety and protection from injury, carefully read, understand and observe the safety instructions described in this manual. Keep this manual or a copy of it with the machine. If you lose this manual or need an additional copy, please contact Tomahawk Power LLC or visit www.tomahawk-power.
CAUTION: Used without the safety alert symbol, CAUTION indicates a potentially hazardous situation which, if not avoided, may result in property damage. 1.2 Operating Safety WARNING: Failure to follow instructions in this manual may lead to serious injury or even death! This machine is to be operated by trained and qualified personnel only! This machine is for industrial use only. The following safety guidelines should always be used when operating this concrete floor saw. 1.2.
-Examine blade flanges for damage, excessive wear and cleanliness before mounting blade. Blade should fit snugly on the shaft and against the inside/outside blade flanges. -Ensure that the blade is marked with an operating speed greater than the blade shaft speed of the saw. -Only cut material that is specified by the diamond blade. Read the specifications of the diamond blade to ensure the proper tool has been matched to the material being cut. -ALWAYS keep blade guards in place.
-ALWAYS allow the machine a proper amount of time to cool before servicing. -Keep the machinery in running condition. -Fix damage to the machine immediately and always replace broken parts. -Dispose of hazardous waste properly. Examples of potentially hazardous waste are used motor oil, fuel and fuel filters. 1.3 Operator Safety while Using Internal Combustion Engines -DO NOT smoke when refueling the engine or operating the machine. -DO NOT refuel a hot or running engine.
1.5 Safety and Operating Labels LABEL MEANING DANGER! Engine emits carbon monoxide; operate only in well-ventilated areas. Read the Operator’s Manual for machine information. No sparks, flames, or burning objects near the machine. Shut off the engine before refueling. Use only clean, filtered, unleaded gasoline. WARNING! Always wear hearing and eye protection when operating this machine. CAUTION! Read and understand the supplied Operator’s Manual before operating the machine.
WARNING! A nameplate listing the model number and serial number is attached to each unit. Please record the information found on this plate so it will be available if the nameplate is lost or damaged. When requesting service information, the serial number should be specified in the unit. 2 OPERATION 2.1 Controls A. Refueling B. Throttle Control C. Water Tank Filling D. Handle for Operating E. Handle for Blade Height Adjustment F. Trolley Wheel G. Splash Guard H. Blade Guard I.
2.2 Operating Principle The following instructions were compiled to provide you information on how to obtain long and trouble free use of the machine. Periodic maintenance of the machine is essential. Read the manual carefully and thoroughly familiarize yourself with the machine and all it’s functions. Failure to do so may injure yourself or someone else. 2.3 Delivery Checks Upon receiving new machine and before putting it into service.
-Water tank level. -Oil level in the engine. -Air filter maintenance indicator. -Check arbors and flanges are clean and undamaged. -If operating in wet-cutting, check water jets for adequate flow. -Align pointer with saw blade. NOTICE: The warranties are VOID if the machine is run without oil. 2.6 To Start Before starting the machine, operator must know the location and function of all controls. 2.6.1 To Start - Gas Engine 1. Do not actuate starter for more than 20 seconds at a time.
2.6.2 To Start - Petrol Engine 1. Open the fuel tap by moving the fuel ON/OFF lever fully to the right. 2. If starting the engine from cold, set the choke ON by moving the choke lever fully to the left. If restarting a warm engine, the choke is usually not required. However, if the engine has cooled, partial choke may be required. 3. Turn the engine ON/OFF switch clockwise to “1” position. 4. Set the throttle to the idle position by moving the throttle lever fully to the right.
4. Lower blade into cut slowly. 5. Cut as fast as blade will allow. If blade misaligns from cut, reduce forward speed or depth of cut. 6. Use only enough side pressure on saw handles to follow cutting line. 2.9 Cutting Lower the blade into concrete to the required depth by turning the tilt crank counterclockwise. Ease the saw slowly forward. Slow forward pressure if the saw begins to stall.
6. To check alignment, use a steel straight edge. See Figure 1. 7. Line up the straight edge along the outside face of both pulleys shown in the drawing. All pulleys have (2) set screws in the bottom of their grooves. Set screws require thread locking lock title. 8. Misalignment will show up as a gap between the pulley face and straight edge. Make sure there is clearance between arbor pulley and saw base on both sides. 2.11 Dry Cutting -Never operate any saw without safety guards in place.
2.13 Lifting 1. NEVER tow the machine. 2. ONLY use steel ropes or chains for lifting. 3. Make sure that the ropes or chains have enough lifting capacity to hold the machine (see the information on the machine plate for weight). 4. ONLY lift the machine by the hook on the frame. 5. DO NOT stand or walk under a lifted machine. 3. Maintenance 3.1 Periodic Maintenance Schedule Daily Check fuel level Check engine oil level Inspect air filter. Replace as needed.
3.2 Lubrication The long life and successful operation of any machinery is dependent on frequent and thorough lubrication. Before using the machine, always check the oil and use proper oil with the correct type and grade as recommended. NOTICE: DO NOT mix types of engine oil and DO NOT overfill the oil. Damage to the machine may occur if oils are mixed or overfilled. See Technical Data for oil quantity and type. 3.3 Spark Plug Check and clean spark plugs regularly.
3.6 Troubleshooting Uneven segment wear SOLUTION POSSIBLE CAUSES SYMPTOM (Wet cutting) Insufficient water (Usually Flush water system. Check flow to both on one side of blade) Equipment defects sides of blade. Replace bad bearings, also can cause the segments to wear worn arbor shaft or misalignment to unevenly. spindle. Saw head is misaligned. Check alignment for squareness, both vertically and horizontally, of the saw blade.
Cracks in core SOLUTION POSSIBLE CAUSES SYMPTOM Blade flutters in cut as a result of losing Tighten the blade shaft nut. Make sure blade tension. blade is running at proper speed and that drive pin is functioning properly. Blade specification is too hard for the material being cut. Use a softer bond/matrix to eliminate stress. Loss of tension Core overheating. Core overheating as a result of blade spinning on arbor. Core overheating from rubbing the material being cut.
SYMPTOM Undercutting the core POSSIBLE CAUSES SOLUTION Abrasive wearing of the core faster Use water to flush out fines generated than the segments. during cutting. Use wear-retardant cores. Arbor hole out of round Collars/flanges are not properly tightened, Make certain the blade is mounted on the proper shaft diameter. Tighten the shaft permitting blade to rotate or vibrate on nut with a wrench to make certain that the shaft. Collars/flanges are worn or dirty. Blade is not properly mounted.
4. TECHNICAL DATA Engine Make Honda GX390 Horsepower 13 HP Weight 304 lbs Max Cutting Depth 5.5 in Blade Size 12-18 in Depth Adjustment Handle Rotation Driving Manual Push Water Tank Capacity 9 Gal Dimension: A- 64.5 in B- 23 in C- 37.
Impact damage is not covered under warranty. Clutches are not covered under any warranty. Engines are officially guaranteed by Honda. MAINTENANCE RECORD PREVENTATIVE MAINTENANCE AND ROUTINE SERVICE PLAN Tomahawk’s PMF18 Concrete Saw has been assembled with care and will provide years of service. Preventive maintenance and routine service are essential to the long life of your concrete saw. After reading through this manual thoroughly, you will find that you can do some of the regular maintenance yourself.
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