PDMG1000 WALK-BEHIND POWER TROWEL Owner’s Manual This manual provides information regarding the operation and maintenance of these products. We have made every effort to ensure the accuracy of the information in this manual. We reserve the right to change this product at any time without prior notice. Please keep this manual available to all users during the entire life of the power trowel.
TABLE OF CONTENTS 1. Foreword ...................................................................................................3 2. Safety Information..................................................................................... 4 2.1 Laws Pertaining to Spark Arrestors ...................................................................... 4 2.2 Operating Safety .............................................................. .................................... 5 2.
4.13 Braking System ................................. ................................................................. 33 4.14 Pitch Adjustment ................................ ................................................................ 34 5. Maintenance ...............................................................................................35 5.1 Periodic Maintenance Schedule ................ ............................................. ............35 5.2 Engine Oil .........................
CALIFORNIA Proposition 65 Warning: Engine exhaust, some of its constituents, and certain vehicle components, contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. 1. Foreword This manual provides information and procedures to safely operate and maintain the model. For your own safety and protection from injury, carefully read, understand and observe the safety instructions described in this manual.
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. CAUTION: Used without the safety alert symbol, CAUTION indicates a potentially hazardous situation which, if not avoided, may result in property damage. Note: Contains additional information important to a procedure. 2.
2.2.7 NEVER use the trowel around pop-ups in the concrete that are lower than the lowest ring on the ring guard. 2.2.8 ALWAYS wear protective clothing appropriate to the job site when operating equipment. 2.2.9 ALWAYS wear hearing and eye protection when operating this machine. 2.2.10 ALWAYS remain aware of moving parts and keep hands, feet, and loose clothing away from the moving parts of the equipment. 2.2.
2.3.6 DO NOT spill fuel when refueling the engine. 2.3.7 DO NOT run the engine near open flames. 2.3.8 ALWAYS refill the fuel tank in a well-ventilated area. 2.3.9 ALWAYS replace the fuel tank cap after refueling. 2.4 Service Safety WARNING: Poorly maintained equipment can become a safety hazard! In order for the equipment to operate safely and properly over a long period of time, periodic maintenance and occasional repairs are necessary. 2.4.
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2.6 Safety and Information Labels This machines use international pictorial labels where needed. These labels are described below: Label Meaning DANGER! Engines emit carbon monoxide; operate only in well-ventilated area. Read the Operator’s Manual. No sparks, flames, or burning objects near the machine. Shut off the engine before refueling. WARNING! Hot surface! WARNING! Hand injury if caught in moving belt. Always replace beltguard.
Label Meaning WARNING Remove pan from trowel before lifting machine overhead. Pans can fall and cause death or serious injury if a person is hit.(Located on top side of float pan.) Variable speed throttle CAUTION Read and understand the supplied Operator’s Manuals before operating this machine . Fail-ure to do so increases the risk of injury to your-self or others.
Label Meaning Open the fuel flow valve. Close the choke. Turn engine switch to “ON” position. Turn engine key switch to “NO” position. Place throttle in the IDLE position.
Label Meaning Turn engine switch to “OFF” position. Turn engine key switch to “OFF” position. Close the fuel flow valve.
3. Technical Data 3.1 Engine Item No. PDMG1000 Engine Model Rated Power Spark Plug Electrode Gap 168F kW (Hp) 4.8(6.5) @ 3600rpm NGK BPR 6ES , F7RTC mm (in.) 0.7 – 0.8 (0.028 – 0.031) Engine Speed - full load rpm 3800 ± 100 Engine Speed - idle rpm 1450 ± 100 Clutch engagement Valve Clearance (cold) intake: exhaust: Air Cleaner rpm 1800 mm (in.) 0.15 (0.006) 0.20 (0.008) Dual element Engine Lubrication type oil grade SAE 10W30 SG or SF Engine Oil Capacity L (oz.) 0.
4. Operation 4.1 Application This trowel is a modern, high production machine intended for floating and finishing freshly poured concrete slabs. The machine's good balance, adjustable handle, and easily reached controls add to operator comfort and productivity. An automatic stop sensor provides added operator safety. Finishing rates will depend on operator skill and job conditions. DO NOT use this machine for any application other than troweling concrete. 4.
4.4.3 Plug the remaining threaded holes in the blade brace with plastic plugs (c) to prevent them from filling with concrete. WARNING: Do not lift the trowel overhead with a float pan attached, as the pan could fall off and strike personnel working in the vicinity. Graphic 2 4.5 Installing and Adjusting Handles See Graphic 3,4 On new machines the pipe handle comes assembled with the pitch control (Twist or Pro-Shift®) (c), engine switch handle (b), throttle (a), screws (g), and nut (m).
Replace air cleaner cover. 4.5.7 Connect electrical wire on handle to both ends of the engine wire. See handle instruction sheet for additional detail on installation. Note: On machines with the engines, do not connect wires in bag to wires in handle.
4.6 Controls See Graphic 3 Ref. Description a Throttle b Engine switch handle c Twist pitch control Ref. d control or Description Handle height adjustment(if equipped) pitch 4.7 Engine Switch Handle See Graphic 3 When the engine switch handle (b) is pressed, the engine will shut off. To prevent uncontrolled spinning of the trowel, the engine control module is designed to shutoff the engine under certain conditions.
See Graphic 3, 5 4.9.1 Open fuel valve by moving lever to the right (g1). Note: If engine is cold, move choke lever to closed position (i1). If engine is hot, set choke to open position (i2). 4.9.2 Turn engine switch to “ON” (h1). 4.9.3 Move the throttle lever to the idle position (a1). Note: Start engine with throttle in the idle position. If the engine is started when the throttle is not in the idle position, the engine should not start.
4.11 Engine Control Module To test the engine control module, start the machine and jerk the handle to the right. The engine should stop. If the engine does not stop, repeat the jerking motion until the engine stops. If the engine does not shut off, push the engine switch handle and turn the engine off. DO NOT operate the machine until the engine control module is replaced. WARNING: DO NOT operate the trowel if the engine control module is disconnected or not functioning properly. 4.
It is recommended that each set of work passes be at 90° to the previous set of work passes. This will help prevent the creation of valleys in the slab surface. For example, in the illustration, the second set of work passes (2) is 90° to the first set of work passes (1). WARNING: Personnel other than the trowel operator should not be allowed in the work area, as severe injury can occur from contact with operating trowel blades.
not release and could cause belt slippage. 4.14 Pitch Adjustment See Graphic 7 To adjust blade pitch (angle): Turn the pitch adjusting knob (c) clockwise to increase pitch and counterclockwise to decrease pitch. A B C 1 2 3 4 Graphic 7 Ref.
5. Maintenance 5.1 Periodic Maintenance Schedule The chart below lists basic machine and engine maintenance. Refer to the engine manufacturer’s Operator’s Manual for additional information on engine maintenance. After first 20 hrs. Daily Check fuel level. • Check engine oil level. • Inspect fuel lines. • Inspect air filter. Replace as needed. • Check external hardware. • Clean trowel after each use to remove concrete splatter. • Every 50 hrs. Clean air cleaner elements. Every 100 hrs.
5.2.4 Fill the engine crankcase with recommended oil up to the level of the plug opening (c). See Technical Data for oil quantity and type. 5.2.5 Install the oil filler plug. Graphic 8 5.3 Air Cleaner See Graphic 9 The engine is equipped with a dual element air cleaner. Service air cleaner frequently to prevent carburetor malfunction. CAUTION: NEVER run engine without air cleaner. Severe engine damage will occur.
Graphic 9 5.4 Spark Plug See Graphic 10 Clean or replace the spark plug as needed to ensure proper operation. Refer to the engine owner’s manual. WARNING: The muffler becomes very hot during operation and remains hot for awhile after stopping the engine. Do not touch the muffler while it is hot. Note: Refer to the Technical Data for the recommended spark plug type and the electrode gap setting. 5.4.1 Remove the spark plug and inspect it. 5.4.
Graphic 10 5.5 Cleaning Sediment Cup See Graphic 11 5.5.1 Turn the fuel valve off. 5.5.2 Remove the sediment cup (a) and the O-ring (b). 5.5.3 Wash both thoroughly in a nonflammable solvent. Dry and reinstall them. 5.5.4 Turn the fuel valve on and check for leaks. Graphic 11 5.6 Adjusting Idle Speed See Graphic 12 WARNING: Remove the drive belt before making any adjustment to the carburetor. See Belt Replacement.
removed from the machine. Adjust engine to the no load or idle speed per the Technical Data. 5.6.1 Start the engine and allow it to warm up to normal operating temperature. 5.6.2 Turn the throttle stop screw (a) in to increase speed, out to decrease speed. Make sure the throttle lever is touching the stop screw before measuring rpm. Graphic 12 5.7 Carburetor Adjustment See Graphic 13 WARNING: Remove the drive belt before making any adjustment to the carburetor. See Belt Replacement.
Graphic 13 5.8 Belt Replacement See Graphic 14 The trowel is equipped with a self-adjusting clutch. This clutch automatically tightens the belt and compensates for belt wear. Replace the belt if the clutch can no longer tighten belt enough to engage gearbox without slipping. To replace the drive belt: 5.8.1 Disconnect the spark plug lead. WARNING: To avoid accidental starting of the engine, always disconnect the spark plug lead before working on machine. 5.8.
Graphic 14 5.9 Trowel Lubrication See Graphic 15 Grease trowel arms (b) with Shell Alvania #2 grease or equivalent. See Periodic Maintenance Schedule for intervals. Oil the pitch control cable and other parts of trowel on an as needed basis. Oil in the gearbox should not require replacement unless it was drained to service gearbox. Check quantity through plug (a) located on side of gearbox. Oil level should be to bottom of the plug threads. See Technical Data for oil quantity and type.
5.10 Optional Weights To install optional weights, place equal number of weights in both front and rear of guard ring in designated area. Tighten screw to keep weights in place. WARNING: Under no circumstances should any object be used as additional weight other than the weights recommended by us. The use of unauthorized weights could lead to personal injury or machine damage. 5.11 Lifting See Graphic 16 See Technical Data for the weight of the machine. To lift the machine manually: 5.11.1 Stop engine.
● Remove spark plug and pour 15 ml (½ ounce) of SAE 30 engine oil into the cylinder. Replace spark plug and crank engine to distribute oil. Refer to engine manual. ● Clean dirt from cylinder, cylinder head fins, blower housing, rotating screen, and muffler areas. ● To save space, place handle in its storage position. ● Cover trowel and engine and store in a clean, dry area. 5.13 Troubleshooting Problem / Symptom Reason / Remedy Trowel does not develop full speed.
SAFETY ALERT SYMBOL This Safety Alert Symbol means ATTENTION is required! The Safety Alert Symbol identifies important safety messages on machines, safety signs, in manuals or elsewhere. When you see this symbol, be alert to the possibility of personal injury or death. Follow the instructions in the safety message.
A WORD TO THEUSER Remember that YOU are the key to safety. Good safety practices not only protect you but also protect the people around you. It is your responsibility to study this manual and the manufacturer’s manual(s) for your specific machine before operating your machine. Make them a working part of your safety program. Keep in mind that this safety manual is written for concrete power trowels only.
• Read the operator’s manual. If one has not been provided, get one and study it before operating the equipment. • Learn the location and understand the functions of all controls before attempting to operate the equipment. • Know the meaning of all identification symbols on the controls and gauges. • Check to determine that the manufacturer’s furnished safety warning labels are securely attached to the trowel and all warnings can clearly read.
before the trowel is operated. Inspect all hydraulic hoses for cracks or signs of wear and replace if necessary. Secure all caps and filler plugs for all systems. Always use a flashlight or shielded trouble light when checking for leaks – never use an open flame. Never check for hydraulic leaks with your hand. Hydraulic systems are under high pressure and leaks in these systems can penetrate the skin which can result in serious injury or even death.
Thoroughly check the area for unusual or dangerous conditions, such as tools, or items that may damage the trowel or be propelled by the trowels rotating blades. Note where pipes and forms are located. Locate and mark protrusions (rebar, anchor bolts, floor drains, etc.) in the concrete. GETTING ON AND OFF A RIDE-ON TROWEL If operating a ride-on trowel, mount and dismount carefully. Use the steps and hand holds provided. Do not use control levers as hand holds and never use guard rings as steps.
• While firmly holding the handle with one hand, start the engine following the guidelines in the engine manufacturer’s instruction manual. • Hold the handle bar firmly with both hands while the trowel is “throttled-up”. • If control of the trowel is lost, stay clear and do not attempt to regain control until the trowel has stopped moving. Depending on the engine speed, the trowel handle can swing around before it stops completely.
• Never use additional weights other than the weights recommended by the manufacturer. The use of unauthorized weights could lead to personal injury or damage to the trowel. • Never fill the fuel tank while the engine is running. Turn the engine off and allow it to cool before refueling. • The muffler, exhaust pipes and other engine parts will become hot during operation and will remain hot for a while after shutdown. Do not touch until allowed to sufficiently cool.
LOAD AND UNLOAD SAFELY PRECAUTIONS • Power trowels are heavy and awkward to move around. • Do not attempt to lift the ride-on trowel by the guard rings. • Use proper heavy lifting procedures. • Keep all non-essential personnel clear of the area. • Never hoist the trowel over areas where people are standing or working. • Remove tools and loose items before lifting. • Make sure the crossbars on the safety catches are in good condition if so equipped.
slippery; greasy rags are a fire hazard; wet spots are dangerous around electrical equipment. GENERAL PROCEDURES Do not perform any work on the trowel unless you are authorized to do so. Standard maintenance procedures should always be observed. Read the manufacturer’s manual or find assistance if you do not understand what you are doing. Maintenance can be dangerous unless performed properly. Be certain that you have the necessary skill and information, correct tools and equipment to do the job correctly.
Remove all trash or debris. Make sure oily rags or other flammable materials are not stored on or in the trowel. Check for fuel, oil, or hydraulic fluid leaks. Repair the leaks and clean the machine before you operate it. Inspect electrical wiring or worn or frayed insulation. Install new wiring if wires are damaged. Do not weld or flame cut on pipes, tubes, or tanks that contain flammable fluids or gases. Ether and starting fluid is flammable. Do not smoke when using.
Remove filler cap only when cool. TROWEL BLADES AND PANS • Do not attempt to clean, service or perform adjustments on the trowel while it is running. • Do not remove while the trowel is hanging overhead. Always support the trowel securely on a flat, level surface before changing blades or pans. • Always handle blades and pans carefully. Worn blades or pans may develop sharp edges that can cause serious cuts. • Always replace worn or damaged parts with service parts designated by the manufacturer.
