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Meiwa MR-25H Operation Maintenance Manual & Parts List

Vibratory single drum roller
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OPERATION / MAINTENANCE
AND PARTS MANUAL
MR-25H
VIBRATORY SINGLE DRUM ROLLER
Read this instruction manual before operating this equipment
August 31, 2009

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Summary of Contents for Meiwa MR-25H

  • Page 1 OPERATION / MAINTENANCE AND PARTS MANUAL MR-25H VIBRATORY SINGLE DRUM ROLLER Read this instruction manual before operating this equipment August 31, 2009...

  • Page 2: Pre-Start Inspection

    If you have ANY QUESTIONS about the safe use or maintenance of this unit, ASK YOUR SUPERVISOR OR CONTACT ANY MEIWA DISTRIBUTOR. NEVER GUESS - ALWAYS CHECK. Never make any modifications, additions or conversions which might affect safety without the supplier’s approval. This also applies to the installation and adjustment of safety devices and valves as well as to welding work on load-bearing elements.

  • Page 3: Maintenance

    SECTION 1 - SAFETY PRECAUTIONS AND GUIDELINES The electrical equipment of machines is to be inspected and checked at regular intervals. Defects such as loose connections or scorched cables must be rectified immediately. VERIFY that all the instruction and safety labels are in place and readable. These are as important as any other equipment on the roller.
  • Page 4 SECTION 1 - SAFETY PRECAUTIONS AND GUIDELINES Ensure that all consumables and replaced parts are disposed of safely and with minimum environmental impact. AVOID, whenever possible, servicing, cleaning or examining the unit with the engine running. NEVER fill the fuel tank, with the engine running, while near an open flame, or when smoking. ALWAYS wipe up any spilled fuel immediately.

  • Page 5: Section 2 - Introduction

    Each publication is reviewed and revised, as required, to update and include these changes in later editions. MEIWA SEISAKUSHO reserves the right to modify or make changes within a specific model group without notice and without incurring any liability to retrofit units previously shipped from the factory. Contact your MEIWA SEISAKUSHO Distributor for non-routine maintenance information that is not covered in this publication.
  • Page 6 SECTION 3 - SYMBOL IDENTIFICATION AND METRIC CONVERSION Contents Page INTERNATIONAL MACHINE SYMBOLS ______________________________________________________________1 INTERNATIONAL HIGHWAY SYMBOLS ______________________________________________________________2 METRIC CONVERSIONS __________________________________________________________________________ 4 INTERNATIONAL MACHINE SYMBOLS The following explains the meaning of international symbols that may appear on your machine OIL PRESSURE BRAKE HOURS WATER...
  • Page 7 SECTION 3 - SYMBOL IDENTIFICATION AND METRIC CONVERSION INTERNATIONAL HIGHWAY SYMBOLS The following symbols may also appear in a yellow square instead of a red triangle. Road bends Uneven road Dangerous bend Ridge Double bend Dangerous descent Slippery road Steep ascent Loose gravel No entry for power driven Carriageway narrows...
  • Page 8 SECTION 3 - SYMBOL IDENTIFICATION AND METRIC CONVERSION Two-way traffic “give way” sign Other dangers Stop sign (new) Level crossing Stop sign (old) Level crossing “priority road” sign No entry for vehicles exceeding No entry weight Closed to all vehicles in both entry vehicles axle...
  • Page 9 SECTION 3 - SYMBOL IDENTIFICATION AND METRIC CONVERSION TO CONVERT OMREGNET FRA INTO TIL MULTIPLY BY MULTIPLICERES MED Pound/sq.in 14.50 Kilopascals 100. Centigrade Fahrenheit (C° x 9/5) + 32 Centimeters Inches 0.3937 Centimeters Millimeters 10.0 Circumference Radians 6.283 Cubic centimeters cu.inches 0.06102 Degrees (angle)

  • Page 10: Throttle Lever

    SECTION 4 - OPERATING CONTROLS AND INSTRUMENTS Contents Page THROTTLE LEVER _______________________________________________________________________________1 PROPULSION CONTROL __________________________________________________________________________1 RECOIL STARTER________________________________________________________________________________1 STOP SWITCH ___________________________________________________________________________________2 CHOKE LEVER __________________________________________________________________________________2 FUEL COCK _____________________________________________________________________________________3 ENGINE OIL DIPSTICK ____________________________________________________________________________3 SPRINKLER VALVE ______________________________________________________________________________3 HANDLE LOCKING PIN ___________________________________________________________________________4 THROTTLE LEVER The Throttle Lever (Figure 4-1) is located on the handle and is used to control engine rpm and vibration. The position furthest from the operator is the Idling position, the middle position is the Driving position and the position closest top the operator is the Vibrating position.

  • Page 11: Section 4 - Operating Controls And Instruments

    SECTION 4 - OPERATING CONTROLS AND INSTRUMENTS STOP SWITCH The Stop Switch (Figure 4-2) is located on the engine beside the recoil start handle. Depress and hold the Stop button until the engine stops. CHOKE LEVER The Choke Lever (Figure 4-3) is located on the right side of the engine (front of machine) and is used to enrich the fuel mixture when starting a cold the engine.

  • Page 12: Engine Oil Dipstick

    SECTION 4 - OPERATING CONTROLS AND INSTRUMENTS FUEL COCK The Fuel Cock (Fuel Shut-Off Valve) (Figure 4-3) is located next to the choke and is used to control the flow of fuel from the fuel tank to the engine. Always close the fuel cock when the engine is shutdown. ENGINE OIL DIPSTICK The Engine Oil Dipstick is located on the side of the engine.

  • Page 13: Handle Lock

    SECTION 4 - OPERATING CONTROLS AND INSTRUMENTS HANDLE LOCK The Handle Lock (Figure 4-5) is used to release the handle so that it can be folded for storage.
  • Page 14 SECTION 5 - OPERATING INSTRUCTIONS Contents Page SAFETY CHECKS-PRESTART ______________________________________________________________________1 START-UP PROCEDURE __________________________________________________________________________3 ROLLER OPERTATION ____________________________________________________________________________4 SHUT-DOWN PROCEDURE ________________________________________________________________________6 GENERAL COMPACTION TIPS _____________________________________________________________________7 STORAGE ______________________________________________________________________________________8 TOWING ________________________________________________________________________________________8 SAFETY CHECKS - PRESTART Before starting each day, in addition to the 10 Hour Daily Routine Maintenance, check or inspect the following items to ensure trouble free performance.

  • Page 15: Section 5 - Operating Instructions

    SECTION 5 - OPERATING INSTRUCTIONS Fuel is flammable. May cause severe injury or death. Shutdown the engine, extinguish all open flames and do not smoke while working with fuel. Always wipe up spilled fuel. Check the fuel level. If necessary fill the fuel tank with clean non-leaded gasoline per specifications in Section 6 of this manual.

  • Page 16: Start-Up Procedure

    SECTION 5 - OPERATING INSTRUCTIONS START-UP PROCEDURE IF YOU ARE IN DOUBT OF THE OPERATION OF THIS UNIT AFTER READING THESE PROCEDURES- SEE YOUR SUPERVISOR. Ensure propulsion control (Forward/Reverse Lever) (Figure 5-3) is in the "Neutral" position. Place the Throttle Control Lever (Figure 5-3) in the "Driving" position. Figure 5-3 3.
  • Page 17 SECTION 5 - OPERATING INSTRUCTIONS Ensure the work area is clear of all personnel and obstructions. Pull the recoil start handle (Figure 5-5) forcibly. After each pull, allow the rope to retract slowly to avoid breaking or twisting the rope. Idling the engine unnecessarily for long periods of time wastes fuel and shortens engine life.
  • Page 18 SECTION 5 - OPERATING INSTRUCTIONS Due to the step less speed change system it is necessary to position the propulsion control (forward/reverse lever) to the Neutral position momentarily before changing direction of travel. Move the Propulsion Control (Forward/Reverse Lever) to achieve the desired direction and safe speed of travel as determined by conditions.

  • Page 19: Shutdown Procedure

    SECTION 5 - OPERATING INSTRUCTIONS Once the roller is in motion, move the Throttle Lever to the Vibration position and vibration will start. Refer to Figure 5-7. SHUT-DOWN PROCEDURE NOTE: Whenever possible, roller movement should be stopped with the roller on a solid level surface. 1.
  • Page 20 SECTION 5 - OPERATING INSTRUCTIONS Stop roller vibration by moving the Throttle Control to the (Idle) position. Refer to Figure 5-8. Allow the engine to idle for approximately five minutes to avoid a high initial heat rise and allow heat dissipation. Press and hold the engine stop button until the engine stops.
  • Page 21 SECTION 5 - OPERATING INSTRUCTIONS Continue vibrating coverage passes until the desired density level has been reached. If at any time the drum starts to “bounce”, turn off the vibration and complete compacting in the static mode. Another sign of approaching maximum density is when the drum wipes the asphalt from aggregate on the mat surface, exposing light colored, uncoated surfaces.
  • Page 22 SECTION 5 - OPERATING INSTRUCTIONS Necessary for a very short distance. Push the towing valve (short circuit valve) and tow the roller. Refer to Figure 5-10. 5-9, 5-10...

  • Page 23: General Information

    Grease fittings that are worn, or those that have a stuck check ball, must be replaced. All filters and filter elements for air, fuel, engine oil, and hydraulic fluid must be obtained through MEIWA. Ordering the recommended filters and elements as listed in the Parts Catalog will ensure the proper size and filtration for the machine. Use only genuine MEIWA replacement parts.
  • Page 24 T - TORQUE AR - AS REQUIRED C - CHANGE D - DRAIN F - FILL CL - CLEAN FTLH - FILL TO LEVEL HOLE Improper Maintenance Can be hazardous. Understand maintenance safety prior to working. Consult machine manual and MEIWA dealer.
  • Page 25 SECTION 6 - FUEL AND LUBRICATION SPECIFICATIONS RECOMMENDED ENGINE OILS The following engine oils meet the requirements of engine oil to be used in this machine: Shell Oil Company ......Shell X-100 Mobil Oil Company ......Mobil Multi Grade Also Refer to engine manufacturer's manual. RECOMMENDED HYDRAULIC OILS The following hydraulic oils meet the requirements of the hydraulic oils to be used in this machine: Shell Oil Company ......

  • Page 26: Engine Oil

    SECTION 7 - INITIAL BREAK-IN MAINTENANCE Contents Page GENERAL ______________________________________________________________________________________ 1 ENGINE OIL ____________________________________________________________________________________ 1 HYDRAULIC OIL FILTER __________________________________________________________________________ 1 GENERAL Any new equipment requires an initial modification of the maintenance schedule to properly break-in the various systems and component units. Perform this one time initial break-in maintenance at the times specified below IN ADDITION TO the 10 hour, 50 hour and 100 hour maintenance tasks, which are described on the following pages.
  • Page 27 SECTION 8 - 10 HOUR OR DAILY ROUTINE MAINTENANCE Contents Page FASTENING HARDWARE_________________________________________________________________________ 1 ENGINE OIL ____________________________________________________________________________________ 1 FUEL TANK ____________________________________________________________________________________ 2 COOLING FINS, BLOCK AND AIR INTAKE SCREEN ___________________________________________________ 3 AIR CLEANER __________________________________________________________________________________ 4 FASTENING HARDWARE Check all fastening hardware to ensure that it is secure and none is missing. Ensure that any hardware being replaced is of the proper type.
  • Page 28 SECTION 8 - 10 HOUR OR DAILY ROUTINE MAINTENANCE FUEL TANK The fuel tank is located on top of the engine. Refer to Figure 8-2. Figure 8-2 Never fill the fuel tank with the engine running, while near an open flame, while the engine is hot smoking, or when smoking.
  • Page 29 SECTION 8 - 10 HOUR OR DAILY ROUTINE MAINTENANCE COOLING FINS, BLOCK AND AIR INTAKE SCREEN Never operate the engine blower housing or cooling shrouds removed. These direct air flow past the cooling fins. Removal will result in improper air circulation. Air is drawn into the cooling shroud by fins provided on the flywheel.

  • Page 30: Air Cleaner

    SECTION 8 - 10 HOUR OR DAILY ROUTINE MAINTENANCE AIR CLEANER The air cleaner is a dry type with a replicable element. The air prolongs engine life by preventing contaminants from being drawn into the engine. It must be cleaned whenever dirt build up restricts airflow to the engine. Dust passing through the air cleaner, even through small holes, will cause rapid engine wear.

  • Page 31: Hydraulic Oil

    SECTION 9 - 50 HOUR OR WEEKLY ROUTINE MAINTENANCE Contents Page HYDRAULIC OIL ________________________________________________________________________________ 1 HYDRAULIC OIL A clean n contaminant-free system is extremely important to the proper operation of the roller. Take care when working around or on the hydraulic system to ensure its complete cleanliness.
  • Page 32 SECTION 10 - 100 HOUR OR MONTHLY ROUTINE MAINTENANCE Contents Page ENGINE OIL ____________________________________________________________________________________ 1 BELTS _________________________________________________________________________________________ 1 ENGINE OIL USE EXTREME CARE WHEN WORKING AROUND A WARM ENGINE TO AVOID BURNS. The engine oil is to be changed at this interval. Drain the oil by removing the drain plug from the bottom of the engine crankcase.
  • Page 33 SECTION 11 - 300 HOUR OR QUARTERLY ROUTINE MAINTENANCE NOTE: No maintenance is required at this time interval. 11-1, 11-2...

  • Page 34: Hydraulic Oil And Filter

    SECTION 12 - 500 HOUR OR SEMI-ANNUAL ROUTINE MAINTENANCE Contents Page HYDRAULIC OIL AND FILTER _____________________________________________________________________ 1 HYDRAULIC OIL AND FILTER A clean contaminant-free system is extremely important to the proper operation of the roller. Use care when working around or on the hydraulic system to ensure its complete cleanliness.

  • Page 35: Water Tank

    SECTION 13 - 1000 HOUR OR ANNUAL ROUTINE MAINTENANCE Contents Page WATER TANK __________________________________________________________________________________ 1 WATER TANK At least once a year, more often if conditions warrant, drain the water tank. To drain, remove the plug from the bottom of the water tank and allow water to drain.
  • Page 36 SECTION 14 - ROUTINE ADJUSTMENTS Contents Page DRIVING TIMING BELT ___________________________________________________________________________ 1 VIBRATION TIMING BELT _________________________________________________________________________ 2 DRIVING V-BELT ________________________________________________________________________________ 3 DRIVING TIMING BELT Loosen the four (4) bolts that secure the bearing case. Refer to Figure 14-1. Figure 14-1 Adjust the tension on the belt by pressing downward on the center of the belt with about 1 pound of force until a slight deflection is obtained.

  • Page 37: Section 14 - Routine Adjustments

    SECTION 14 - ROUTINE ADJUSTMENTS VIBRATION TIMING BELT Loosen the four (4) bolts securing the gear case. Refer to Figure 14-2. Figure 14-2 Move the position of the gear case by turning the bolt on top of the case until the proper belt tension is obtained. Refer to Figure 14-3.
  • Page 38 SECTION 14 - ROUTINE ADJUSTMENTS Proper belt tension is achieved when a 1 pound force applied to the center of the belt produces a deflection of approximately 1/4 inch. Tighten the four (4) bolts to secure the gear case. DRIVING V-BELT Loosen the four (4) bolts that secure the engine base.

  • Page 39: Section 15 - Miscellaneous And Optional Equipment

    SECTION 15 - MISCELLANEOUS AND OPTIONAL EQUIPMENT Contents Page WATER SPRINKLER SYSTEM _____________________________________________________________________ 1 LIFTING ARM ___________________________________________________________________________________ 1 STORAGE HANDLE ______________________________________________________________________________ 1 WATER SPRINKLER SYSTEM The water sprinkler system consists of a water tank located on the front of the roller and a sprinkler bar with the necessary hose.
  • Page 40 SECTION 16 - SCHEMATICS NOTE: No Electrical or Hydraulic Schematics are available for the roller. 16-1, 16-2...

  • Page 41: Specifications

    SECTION 17 - SPECIFICATIONS SPECIFICATIONS MODEL MR-25H WEIGHT 551 pounds (250 kg) VIBRATION FREQUENCY 4460 rpm (74.3 Hz) CENTRIFUGAL FORCE 1984 pounds (8.8 kN) TRAVEL SPEED 0 -1.5 mph (0-2.4 km/hr) OVERALL LENGTH 60.4 inches (1535 mm) OVERALL HEIGHT 38.8 inches (985 mm) OVERALL WIDTH 25.6 inches (650 mm)

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