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OPERATION AND PARTS MANUAL
SERIES
MODEL MT-74F
TAMPING RAMMER
(ROBIN GASOLINE ENGINE)
Revision #12 (11/08/07)
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
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PAGE 2 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
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TABLE OF CONTENTS Multiquip Tamping Rammer ROBIN EH-12-2D46051 ENGINE MT-74F Crankcase and Cylinder Assembly ................34-35 Proposition 65 Warning ......................................... 2 Crankshaft and Piston Assembly ...................36-37 Table Of Contents ................................................. 3 Muffler, Air Cleaner, Camshaft,& Carb. Assy. .38-39 Parts Ordering Procedures ................................... 4 Governor Assembly .......................................40-
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PARTS ORDERING PROCEDURES Ordering parts has never been easier! Choose from three easy options: Effective: st January 1 , 2006 Best Deal! Order via Internet (Dealers Only): If you have an MQ Account, to obtain a Order parts on-line using Multiquip’s SmartEquip website! Username and Password, E-mail us at: parts@multiquip.com. ■ View Parts Diagrams To obtain an MQ Account, contact your ■ Order Parts District Sales Manager for more information. ■ Print Specification Information Use the internet an
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MT-74F — SAFETY MESSAGE ALERT SYMBOLS HAZARD SYMBOLS FOR YOUR SAFETY AND THE SAFETY OF OTHERS! Potential hazards associated with the operation of a MT-74F Safety precautions should be followed at all times when operating this Tamping Rammer will be referenced with Hazard Symbols equipment. Failure to read and which appear throughout this manual, and will be referenced Lethal Exhaust Gases understand the Safety Messages and in conjunction with Safety Message Alert Symbols. Operating Instructio
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MT-74F — SAFETY MESSAGE ALERT SYMBOLS Equipment Damage Rotating Parts Hazards CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION Hazards NEVER operate equipment with covers, Other important messages are provided throughout this or guards removed. Keep fingers, hands, manual to help prevent damage to your light tower, other hair and clothing away from all moving property, or the surrounding environment. parts to prevent injury. Accidental Starting Hazards CAUTION C
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MT-74F — RULES FOR SAFE OPERATION ■NEVER touch the hot exhaust Read this manual! DANGER DANGER DANGER DANGER DANGER manifold, muffler or cylinder. Allow these parts to cool before servicing Failure to follow instructions in this manual may lead engine or rammer. to serious injury or even death! This equipment is to be operated by trained and qualified personnel only! This equipment is for industrial use only. The following safety guidelines should always be used when ■ High Temperatures – Allow
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MT-74F — RULES FOR SAFE OPERATION ■ ALWAYS stop the engine before servicing, adding fuel and MAINTENANCE oil. ■ NEVER lubricate components or attempt service on a ■ NEVER run engine without air filter. Severe engine may running rammer. occur. ■ ALWAYS allow the rammer a proper amount of time to ■ ALWAYS service air cleaner frequently to prevent carburetor cool before servicing. malfunction. ■ Keep the rammer in proper running condition. ■ ALWAYS check the machine for loosened threads or bolts
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MT-74F — OPERATION AND SAFETY DECALS MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 9
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MT-74F — GENERAL INFORMATION Definition of Tamping Rammer The Mikasa MT-74F tamping rammer is a powerful compacting tool capable of applying a tremendous force in consecutive impacts to a soil surface. Its applications include soil compacting for road, embankments and reservoirs as well as backfilling for gas pipelines, water pipelines and cable installation work. The impact force of the MT-74F levels and uniformly compacts voids between soil particles to increase dry density. Circular motion i
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MT-74F — SPECIFICATIONS Ts T TTs Ta a a a ab b b b bllllle e e e e1 1 1 1 1..... M M M M MT T T T T-----7 7 7 7 74 4 4 4 4F F F F F R R R R Ra a a a am m m m mm m m m me e e e er r r r r S S S S Sp p p p pe e e e ec c c c ciiiiif f f f fiiiiic c c c ca a a a at t t t tiiiiio o o o on n n n ns s s MF ODEL MT-74 O) verall Height 41.1 in. (1,043 mm O) verall Width 16.2 in (412 mm O) ver Length 28.3 in (720 mm S) hoe Size 11.3 in. (288 mm B0 lows/minute 68 I) mpact Force 3,100 lbs./blow (1,400 kg/bl
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MT-74F — CONTROLS AND COMPONENTS Figure 1. MT-74F Rammer Figure 1 shows the location of the controls and components 8. Foot – Laminated wood with tempered steel plate for for the MT-74F Tamping Rammer. The functions of each superior shock absorption. control is described below: 9. Oil Level Sight Glass – Indicates the level of oil in the oil bath reservoir. 1. Throttle Lever – Controls engine speed and the tamping 10. Recoil Starting Handle – Used when starting the engine. action of the rammer
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MT-74F — BASIC ENGINE Figure 1A. Robin EH-12-2D Engine Controls and Components INITIAL SERVICING The engine (Figure 1A) must be checked for proper lubrication and 5. Recoil Starter (pull rope) – Manual-starting method. Pull filled with fuel prior to operation. Refer to the manufacturer's Engine the starter grip until resistance is felt, then pull briskly and manual for instructions & details of operation and servicing. smoothly. 1. Secondary Air Cleaner – Prevents dirt and other debris 6. Eng
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MT-74F — OPERATION This section is intended to assist the operator with the initial Engine start-up of the MT-74F Tamping Rammer. It extremely important 1. Fill the fuel tank (Figure 3 ) with unleaded gasoline. At the that this section be read carefully before attempting to operate same time, check the engine oil and make it a habit to the rammer. replenish it often. DO NOT use your rammer until this section is thoroughly understood. Read Manual CAUTI CAUTI CAUTION CAUTI CAUTI Failure to unders
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MT-74F — OPERATION Inspection 3. Close the choke lever (Figure 7) and move the throttle lever to the "Full Open" position. Turning the choke lever 90 1. Check all nuts, bolts fasteners for tightness. Retighten as degrees clockwise closes the choke . In cold weather, start the necessary. unit with choke fully closed. In warm weather or when the 2. Clean any dirt from the recoil starter and foot pedestal. Wipe engine is warm, the unit can be started with choke halfway the entire unit clean
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MT-74F — OPERATION Operation 3. To stop the tamping action, move throttle lever quickly from 1. To start the rammer tamping action, move the throttle lever the FULL OPEN to IDLE position. (Figure 9) quickly from IDLE (close) to the FULL OPEN Stopping The Engine position . DO NOT move the throttle lever slowly as this may Normal Shutdown cause damage to the clutch or spring. 1. Move throttle lever quickly from the FULL OPEN to IDLE position (Figure 10) and run the engine for three minutes at
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MT-74F — MAINTENANCE ■ The air cleaner (Figure 12 ) on the engine side will hardly Maintenance be contaminated, if it is, however after cleaning the element Perform the scheduled maintenance procedures as indicated: with kerosene, dip it in mixed oil consisting of 3 parts of DAILY gasoline and 1 part of engine oil. Then tightly squeeze outer ■ Thoroughly remove dirt and oil from the engine and control primary element (sponge) and shake off well the inner area. Clean or replace the air cleaner el
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MT-74F — TROUBLESHOOTING GUIDE TABLE 4. ENGINE TROUBLESHOOTING SYMPTOM POSSIBLE PROBLEM SOLUTION Difficult to start Ignition plug being bridge? Check ignition system. Carbon deposit at ignition? Clean or replace ignition. Fuel is available but spark plug will not ignite. (Power available Short circuit due to defective Replace insulators. at high tension cable). insulators? Improper spark gap? Set spark plug gap to the correct gap. Short circuit at stop switch? Check stop switch circuit. Replace
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MT-74F — TROUBLESHOOTING GUIDE TABLE 4. ENGINE TROUBLESHOOTING (continued) ENGINE ENGINE ENGINE ENGINE ENGINE SYMPTOM POSSIBLE PROBLEM SOLUTION Operation not satisfactory Governor adjustment improper? Adjust governor to correct lever. Governor spring defective? Clean or replace ignition. Rotational speed fluctuates. Fuel flow erratic? Check fuel line. Air taken in through suction Check suction line. line? Dust in rotating part? Clean recoil starter assembly. Recoil starter not working properly.
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MT-74F — EXPLANATION OF PARTS SECTION REMARKS COLUMN The following section explains the different symbols and QTY. Column remarks used in the Parts section of this manual. Use the help Numbers Used - Item quantity can be indicated by a numbers found on the back page of the manual if there are any number, a blank entry, or A/R. questions. A/R (As Required) is generally used for hoses or other parts that are sold in bulk and cut to length. The contents and part numbers listed in the parts section
