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SERIES

OPERATION AND PARTS MANUAL

THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

To find the latest revision of this 

publication, visit our website at: 

www.multiquip.com

MODEL EM120 HYDRAULIC

PLASTER/MORTAR MIXER

(HONDA GX390U1QA2 GASOLINE ENGINE)

Revision #1 (09/09/19)

Summary of Contents for EM120

Page 1: ...THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES To find the latest revision of this publication visit our website at www multiquip com MODEL EM120 HYDRAULIC PLASTER MORTAR MIXER HONDA GX390U1QA2 GASOLINE ENGINE Revision 1 09 09 19 ...

Page 2: ...PAGE 2 EM120 HYD PLASTER MORTAR MIXER OPERATION AND PARTS MANUAL REV 1 09 09 19 PROPOSITION 65 WARNING ...

Page 3: ...ry disease cancer birth defects or other reproductive harm If you are unfamiliar with the risks associated with the particular process and or material being cut or the composition of the tool being used review the material safety data sheet and or consult your employer the material manufacturer supplier governmental agencies such as OSHA and NIOSH and other sources on hazardous materials Californi...

Page 4: ...y Chain Connection 19 Inspection 20 22 Start Up 23 Start Up Operation 24 Operation 25 Maintenance Engine 26 28 Maintenance Mixer 29 33 Hydraulic System Diagram 34 Troubleshooting Mixer 35 Troubleshooting Engine 36 37 Explanation of Code in Remarks Column 38 Suggested Spare Parts 39 Component Drawings Nameplate and Decals Assembly 40 41 Paddle Blades Assembly 42 43 Drum and Shaft Assembly 44 45 Pad...

Page 5: ...ist No Description OK Date 1 Read operation manual completely 2 Machine layout location of components checking of engine oil levels 3 Fuel system refueling procedure 4 Operation of controls machine not running 5 Safety controls safety stop switch operation 6 Emergency stop procedures 7 Machine transport and storage ...

Page 6: ...the operator and are preceded by one of four words DANGER WARNING CAUTION or NOTICE SAFETY SYMBOLS DANGER Indicates a hazardous situation which if not avoided WILL result in DEATH or SERIOUS INJURY WARNING Indicates a hazardous situation which if not avoided COULD result in DEATH or SERIOUS INJURY CAUTION Indicates a hazardous situation which if not avoided COULD result in MINOR or MODERATE INJURY...

Page 7: ...ent for loosened threads or bolts before starting DO NOT use the equipment for any purpose other than its intended purposes or applications NOTICE This equipment should only be operated by trained and qualified personnel 18 years of age and older Whenever necessary replace nameplate operation and safety decals when they become difficult read Manufacturer does not assume responsibility for any acci...

Page 8: ...DO NOT tip mixer onto drum mouth when the drum is rotating Ensure the drum is rotating while filling and emptying the drum ALWAYS store equipment properly when it is not being used Equipment should be stored in a clean dry location out of the reach of children and unauthorized personnel ENGINE SAFETY GASOLINE MODELS ONLY DANGER Engine fuel exhaust gases contain poisonous carbon monoxide This gas i...

Page 9: ...ell ventilated areas and away from sparks and flames NEVER use fuel as a cleaning agent DO NOT smoke around or near the equipment Fire or explosion could result from fuel vapors or if fuel is spilled on a hot engine GENERATOR SAFETY ELECTRIC MODELS ONLY If using a generator to power mixer refer to applicable generator manual safety information section ELECTRIC MOTOR SAFETY ELECTRIC MODELS ONLY NOT...

Page 10: ...gulations in addition to meeting Department of Transportation DOT Safety Towing Regulations before towing your mixer In order to reduce the possibility of an accident while transporting the mixer on public roads ALWAYS make sure the towing vehicle is mechanically sound and in good operating condition ALWAYS shutdown engine before transporting ALWAYS inspect the hitch and coupling for wear NEVER to...

Page 11: ...r frame and all other metal parts be sent to a recycling center Metal recycling involves the collection of metal from discarded products and its transformation into raw materials to use in manufacturing a new product Recyclers and manufacturers alike promote the process of recycling metal Using a metal recycling center promotes energy cost savings EMISSIONS INFORMATION NOTICE The gasoline engine u...

Page 12: ...A Height 62 5 1 587 B Width 56 1 422 C Length 82 in 2 083 Maximum Mixing Capacity 12 cu ft 339 8 liters Bag Capacity 3 5 4 bags Hydraulic Oil Tank Capacity 12 gallons 45 liters Hydraulic Oil Type ShellTellius 68 Mobil DFE26 orTexaco Rand HDC Weight 1 010 lbs 554 Kg Figure 1 Dimensions A B C HBC 1 2 INCH BALL COUPLER HPC 1 1 INCH PIN COUPLER OPTIONAL TOW BARS APPROXIMATE LENGTH 36IN 914 4 MM HLC 1 ...

Page 13: ... Plug Type BPR6ES NGK Spark Plug Gap 0 028 0 031 in 0 70 0 80 mm Dimension L x W x H 16 0 x 18 1 X 17 6 in 406 X 460 X 448 mm Dry Net Weight 69 9 lbs 31 7 Kg Table 3 EM120 Hyd Noise and Vibration Guaranteed ISO 11201 2010 Based Sound Pressure Level at Operator Station in dB A TBD Guaranteed ISO 3744 2010 Based Sound Power Level in dB A TBD NOTES 1 Sound Pressure and Power Levels are A weighted Mea...

Page 14: ... powered by a 11 7 HP air cooled 4 stroke gasoline engine Refer to Table 2 for specific engine details HARDWARE Check all hardware on the mixer before starting Periodically inspect all hardware Loose hardware can contribute to early component failure and poor performance Use Table 4 as general guideline when the torqueing of mixer hardware is required Remember to keep all mixer hardware components...

Page 15: ...ill should ALWAYS be locked when the mixing of plaster or mortar is required Also when transporting the mixer the safety grill should be locked The safety grill should only be un locked when cleaning of the blades and drum is required 9 Pivot Point Zerk Fitting There is a zerk grease fitting on each end of the mixing drum These fittings lubricate the dumping mechanism Lubricate both fittings at le...

Page 16: ...t 5 Hydraulic Dump Cylinder When activated this cylinder will cause the mixing drum to rotate to the dump position 6 Hydraulic Pump Supplies hydraulic fluid to the hydraulic control valve 7 Hydraulic Dump Lever Pull lever outward to place mixing drum in the dump position Push lever inward to return mixing drum to the upright position 8 Hydraulic Paddle Blade Lever 3 position lever Push inward for ...

Page 17: ...ermits engine starting OFF position stops engine operation 4 Recoil Starter pull rope Manual starting method Pull the starter grip until resistance is felt then pull briskly and smoothly 5 Oil Drain Plug Remove this plug to remove oil from the engine s crankcase 6 Fuel Valve Lever OPEN to let fuel flow CLOSE to stop the flow of fuel 7 Dipstick OilFillerCap Removethiscaptodetermine if the engine oi...

Page 18: ...s CAUTION Check with your county or state safety towing regulations department before towing your mixer ALWAYS make sure that the fuel valve lever is in the OFF position gasoline models only Check wheel mounting lug nuts with a torque wrench Torque wheel lug nuts as described in the maintenance section of this manual Check tightness of U clamp nuts torque suspension hardware as referenced in the m...

Page 19: ...tand Loop the chain together and place under the tow bar Secure the loop with the connector link 3 Extend the safety chain along the length of the tow bar looping it through the tow bar s connector link Remove any excess chain slack 4 Connect the free end of connector link the safety chain to the towing vehicle Remember it is critical that the length of the chain be properly adjusted to prevent th...

Page 20: ... PADDLE BLADE IS TOO TIGHT AGAINST DRUM SIDE WALLS PADDLE BLADE IS TOO TIGHT AGAINST DRUM SIDE WALLS DRUM END AND SIDE WALLS INCORRECT INCORRECT CORRECT CORRECT CENTER ENGINE END CAST PADDLE ENGINE END ADDLE CAST P CENTER TOW END CAST PADDLE ENGINE END CAST PADDLE DRUM END DRUM SIDE INSPECTION Figure 5 Paddle Blade Adjustment Adjust paddles as shown in Figure 5 ...

Page 21: ... operating the mixer CAUTION NEVER place hands or feet inside the engine guard cover while the engine is running ALWAYS shut the engine down before performing any kind of maintenance service on the mixer 5 I Figure 7 Engine Oil Dipstick Oil Level FUEL CHECK 1 Remove the gasoline cap located on top of fuel tank 2 Visually inspect to see if fuel level is low If fuel is low replenish with unleaded fu...

Page 22: ...re adjusted properly See blade adjustment procedure in this manual Replace all defective or damaged blades immediately using the part numbers referenced in the parts section of this manual Figure 9 Worn Mixing Blade WORN RUBBER MISSING RUBBER MISSING RUBBER CRACKS INSPECTION TIRES Check for worn or defective tires Figure 10 Replace any defective or worn tires immediately Figure 10 Tire Wear START ...

Page 23: ...to the CLOSED position Figure 13 Choke Lever WARNING Failure to understand the operation of the mixer could result in severe damage to the mixer or personal injury Reference Figure 2 and Figure 3 for the location of any components referenced in this manual CAUTION NEVER operate the mixer in a confined area or enclosed area structure that does not provide ample free flow of air 3 Move the throttle ...

Page 24: ... paddle shaft inside the drum should be rotating at this time 3 Add a small amount water to the mixing drum Figure 19 4 Lift the mixing bag compound Figure 19 onto the steel safety grate over the bag cutter and let the contents fall into the drum Add more water if desired and mix compound to desired consistency Figure 19 Filling Mixing Drum DUMPING 1 Pull hydraulic dump lever Figure 20 outward to ...

Page 25: ...hen rotating the mixing drum from the dump position to the upright position keep hands clear of safety grate The possibility exists of hands or fingers being crushed OPERATION STOPPINGTHE MIXER 1 Push the main start stop switch Figure 22 inward to stop the engine Figure 22 Start Stop Button Stop Position 2 Place fuel shut off lever in the OFF position 3 Clean drum of all debris and foreign matter ...

Page 26: ...R 200 HRS Engine Oil Check X Change X Air Cleaner Check X Change X 1 All Nuts and Bolts Re tighten if necessary X Spark Plugs Check Clean X Replace X Cooling Fins Check X Spark Arrester Clean X Fuel Tank Clean X Fuel Filter Check X Idle Speed Check Adjust X 2 Valve Clearance Check Adjust X 2 Fuel Lines Check Every 2 years replace if necessary 2 1 Service more frequently when used in DUSTY areas 2 ...

Page 27: ...mmediately Fuel Strainer 1 Thoroughly clean the area around the fuel cap 2 Remove the fuel cap from the fuel tank 3 Next remove inspect and clean the fuel strainer Figure 23 with solvent Figure 23 Fuel Strainer MAINTENANCE ENGINE Spark Plug 1 Remove and clean the spark plug Figure 24 then adjust the spark gap to 0 024 0 028 inch 0 6 0 7 mm This unit has electronic ignition which requires no adjust...

Page 28: ... Dip the element in clean engine oil and completely squeeze out the excess oil from the element before installing Figure 26 Engine Air Cleaner DANGER DO NOT use gasoline as a cleaning solvent to avoid creating the risk of fire or an explosion SPARK ARRESTER CLEANING Clean the spark arrester every 6 months or 100 hours 1 Remove the 4 mm screw 3 from the exhaust deflector Figure 27 then remove the d...

Page 29: ... seals are now tight This procedure should be done periodically as the seals leak Figure 29 Drum Seal Adjusting Nuts 3 Once the pressure plate touches the drum its time to replace the graphite seals Figure 30 Figure 30 Replacing Drum Seals DRUM BEARING BRACKET LUBRICATION There is 1 set of drum bearing brackets Figure 31 that will require lubrication These brackets are intended to make the drum ro...

Page 30: ...E FITTING Figure 34 Wheel Hub and Bearings 2 Fill the wheel hub Figure 34 with grease to the inside diameter of the outer races and also fill the hub grease cap Reassemble the hub and mount the wheel Then tighten the adjusting nut at the same time turn the wheel in both directions until there is a slight bind to be sure all the bearing surfaces are in contact Then back off the adjusting nut 1 6 to...

Page 31: ... the rim is cracked the air pressure in the inter tube may cause pieces of the rim to explode break off with great force and can cause serious eye or bodily injury MAINTENANCE MIXER Tires Wear Inflation Tire inflation pressure is the most important factor in tire life Pressure should be checked cold before operation DO NOT bleed air from tires when they are hot Check inflation pressure weekly duri...

Page 32: ...dure for attachment of the wheels is as follows 1 Start all wheel lug nuts by hand 2 Torque all lug nuts in sequence See Figure 37 DO NOT torque the wheel lug nuts all the way down Tighten each lug nut in 3 separate passes as defined by Figure 37 CHECK FOR TIGHTNESS AXLE Table 8 TireTorque Requirements Wheel Size First Pass FT LBS Second Pass FT LBS Third Pass FT LBS 12 20 25 35 40 50 65 13 20 25 ...

Page 33: ... Run the engine until the fuel is completely consumed Completely drain used oil from the engine crankcase and fill with fresh clean oil then follow the procedures described in the engine manual for engine storage Clean the entire mixer and engine compartment Place the mixing drum in the down position mouth facing downward Cover the mixer and place it a clean dry area that is protected from harsh e...

Page 34: ...PAGE 34 EM120 HYD PLASTER MORTAR MIXER OPERATION AND PARTS MANUAL REV 1 09 09 19 HYDRAULIC SYSTEM DIAGRAM Figure 38 Hydraulic System Diagram ...

Page 35: ...ut drum contents Remove obstruction Improper engine speed Check and adjust engine speed Incorrect relief valve pressure Inspect for proper relief pressure Defective hydraulic motor or pump Contact MQ Technical Services Slow hydraulic cylinder dumping Defective cylinder seal Material leaking from drum ends Worn or defective paddle shaft seals Replace seals Drum difficult to discharge tilt Defective...

Page 36: ...g replace switch Ignition coil defective Replace ignition coil Improper spark gap points dirty Set correct spark gap and clean points Condenser insulation worn or short circuiting Replace condenser Spark plug wire broken or short circuiting Replace defective spark plug wiring Difficult to start fuel is available spark is present and compression is normal Wrong fuel type Flush fuel system replace w...

Page 37: ... air cleaner elements as necessary Oil level too low or too high Adjust oil to proper level Rotational speed fluctuates Governor adjusted incorrectly Adjust governor Governor spring defective Replace governor spring Fuel flow restricted Check entire fuel system for leaks or clogs Recoil starter malfunctions if applicable Recoil mechanism clogged with dust and dirt Clean recoil assembly with soap a...

Page 38: ...oes not guarantee the availability of the parts listed NOTICE When ordering a part that has more than one item number listed check the remarks column for help in determining the proper part to order QtY Column Numbers Used Item quantity can be indicated by a number a blank entry or A R A R As Required is generally used for hoses or other parts that are sold in bulk and cut to length A blank entry ...

Page 39: ...EM200212 SIDE WIPER RUBBER 1 EM200213 END WIPER RUBBER 1 EM203432 SIDE SCRAPER BLADE 1 EM203433 END SCRAPER BLADE 4 EM200297 U BOLT 3 EM200863 BLADE KIT RUBBER 36 EM200301 PACKING RING 3 8051 FILTER HYDRAULIC NOTICE Part numbers on this Suggested Spare Parts list may supersede replace the part numbers shown in the following parts lists HONDA GX390U1QA2 GASOLINE ENGINE 1 to 3 units 3 9807955876 SPA...

Page 40: ... To avoid injury you read and understand operator s manual before using this machine MUST Keep safety grate guards and doors in place Shut off engine or electric motor before inspection or maintenance Moving parts can cut and crush engine or electric motor before placing hands in mixing drum SHUT OFF This machine to be operated by qualified personnel only Ask for training as needed P N 521229 WARNI...

Page 41: ...T ID PLATE 2 4 510883 DECAL MQ ESSICK LARGE 3 5 521232 DECAL CAUTION INSPECT BEFORE TOW 2 6 985 DECAL PLASTIC HYDRAULIC OIL ONLY 1 7 510891 DECAL MQ ESSICK SMALL 2 8 518524 DECAL ISO 9001 2000 EXPORT 1 9 520935 DECAL SAFETY INSTRUCTIONS 1 10 521229 DECAL WARNING BODILY INJURY 2 11 948630 DECAL PUSH TO STOP 1 12 521228 DECAL DANGER NO SMOKING 2 13 13238 DECAL DUMP DRIVE CONTROLS 1 NAMEPLATE AND DEC...

Page 42: ...PAGE 42 EM120 HYD PLASTER MORTAR MIXER OPERATION AND PARTS MANUAL REV 1 09 09 19 PADDLE BLADES ASSY ...

Page 43: ...EM200297 U BOLT 4 REPLACES P N 200297 9 EM200295B PADDLE ARM CENTER ENGINE END 1 10 2105162 SCREW HHC 14 REPLACES P N 492367 11 EM923023 WASHER FLAT 5 16 28 REPLACES P N 49259 12 EM200212 SIDE WIPER RUBBER 4 13 EM203432 SIDE SCRAPER BLADE 4 14 2105164 NUT HEX 5 16 DIA NC 14 REPLACES P N 492553 15 EM923343 WASHER LOCK 5 16 14 REPLACES P N 492623 16 EM200293B PADDLE ARM TOW END 1 17 EM203433 END SCR...

Page 44: ...PAGE 44 EM120 HYD PLASTER MORTAR MIXER OPERATION AND PARTS MANUAL REV 1 09 09 19 DRUM AND SHAFT ASSY 6 3 4 3 9 8 5 7 2 FRAME TOW SIDE ENGINE SIDE 10 1 ...

Page 45: ... INCLUDES ITEMS W 2 925191 PIN COTTER 3 16 1 3 6109170 WASHER FLAT 1 2 DIA 3 REPLACES P N 49260 4 13276 BAR GRATE OPENING 1 5 EM203449 DRUM GRILL 1 6 EM924015 PIN COTTER 2 REPLACES P N 505070 7 492584 NUT NYLOC 1 2 DIA NC 1 8 6109170 WASHER FLAT 1 2 DIA 1 REPLACES P N 492600 9 EM963692 BOLT 1 2 UNC X 1 1 2 1 REPLACES P N 492394 10 521676 DRUM 12 CU FT 1 DRUM ONLY ...

Page 46: ...MIXER OPERATION AND PARTS MANUAL REV 1 09 09 19 PADDLE SHAFT ASSY 31 32 7 5 1 6 10 11 12 17 15 8 29 25 30 4 3 28 26 27 18 14 2 9 19 13 32 31 A B FRAME FRAME 16 B 20 10 6 16 14 7 23 15 13 11 21 12 17 24 10 8 3 A 22 TOW SIDE ENGINE SIDE ...

Page 47: ...FLAT 5 8 4 REPLACES P N 492602 13 507844 SPRING COMPRESSOR 4 14 EM200288 PLATE PACKING GLAND PRESSURE 2 16 EM200301 RING SHAFT PACKING 12 15 EM200285 GLAND PACKING HALF 4 16 EM200303 FOLLOWER PACKING RING 2 18 EM200286 BOLT CARRAGE 4 REPLACES P N 505065 19 17985 008 BOLT CARRIAGE 8 REPLACES P N 505064 20 521675 PADDLE SHAFT 1 21 521673 BRACKET REAR 1 22 EM502727 KEY SQUARE 5 16 X 1 3 8 1 23 514235...

Page 48: ...PAGE 48 EM120 HYD PLASTER MORTAR MIXER OPERATION AND PARTS MANUAL REV 1 09 09 19 HYDRAULIC ASSY 6 2 70 70 71 71 25 40 6 4 COUPLER 16 14 21 26 26 32 10 8 19 10 53 35 36 11 12 35 35 22 52 ...

Page 49: ...6 3369 FITTING 2 28 13219 FITTING 90 1 30 3220 FITTING STR 12BARB X 3 4MP 2 32 13243 HOSE MOTOR 17 W 90 FITTING 1 33 510263 FITTING 90 STRAIGHT ELBOW 1 34 13225 HANDLE DRIVE DUMP VALVE CONTROL 2 35 492356 BOLT 1 4 X 3 4 2 36 2101402 WASHER LOCK 1 4 DIA 2 REPLACES P N 492622 40 13380 HOSE 3 4 ID X 18 1 2 1 42 492396 BOLT 1 2 NC X 2 4 44 16587 FITTING 2 REPLACES P N 3314 46 3322 FITTING 90 1 48 3457...

Page 50: ...PAGE 50 EM120 HYD PLASTER MORTAR MIXER OPERATION AND PARTS MANUAL REV 1 09 09 19 FRAME ASSY 15 17 14 1 8 2 3 13 12 10 9 11 5 7 18 6 16 15 19 20 4 NOTES OPTIONAL TOW BARS A A 21 22 15 ...

Page 51: ... 6 492534 NUT CASTLE 3 4 2 7 EM924008 PIN COTTER 1 8 X 1 1 2 2 REPLACES P N 491688 8 516477 WHEEL TIRE ASSY 2 9 29194 LUG NUT 10 10 3469 DUST CAP 2 11 504708 WASHER FLAT 3 4 2 12 EM941277 HUB COMPLETE 5 LUGS 2 13 511699 AXLE 1 14 3028 U BOLT AXLE 2 15 492584 NUT LOCK 1 2 DIA 10 16 3076 SPRING AXLE 2 17 3043 BOLT 1 2 X 6 G5 2 REPLACES P N 510721 18 HBC 1 TWO BAR BALL HITCH 2 IN 1 CONTACT SALES 19 H...

Page 52: ...PAGE 52 EM120 HYD PLASTER MORTAR MIXER OPERATION AND PARTS MANUAL REV 1 09 09 19 CABINET ASSY 6 10 9 3 2 11 4 8 7 7 5 1 ...

Page 53: ...CABLE TIE 1 REPLACES P N 491028 3 511713 WEATHER STRIPPING SMALL ACCESS 1 4 512881 RIVET 10 REPLACES P N 503723 5 491010 LATCH KIT CABINET 2 6 EM963610 BOLT 3 8 4 REPLACES P N 492376 7 3019092 WASHER FLAT 3 8 8 REPLACES P N 492598 8 0166A WASHER LOCK 3 8 4 REPLACES P N 492624 9 1456 NUT HEX 3 8 4 REPLACES P N 492554 10 511580 CABINET ENGINE STEEL 1 11 518691 WEATHER STRIPPING LARGE ACCESS 1 ...

Page 54: ...PAGE 54 EM120 HYD PLASTER MORTAR MIXER OPERATION AND PARTS MANUAL REV 1 09 09 19 ENGINE ASSY 10 8 9 16 11 12 13 14 11 10 PART OF CABINET ASSY 1 2 15 3 4 5 7 6 14 ...

Page 55: ...HP GX390U1QA2 1 5 203148 TUBE EXHAUST 1 6 491757 RIVET 4 7 203123 FLANGE EXHAUST PIPE 1 8 90745ZE2600 KEY SQUARE 6 3X6 43X43 1 9 EM203040 ENGINE SHAFT SLEEVE 1 10 0166A WASHER LOCK 3 8 DIA 6 REPLACES P N 492624 11 EM963610 BOLT 3 8 6 REPLACES P N 492376 12 13374 PUMP EATON 1 13 516282 COUPLING ASSY 1 14 3019092 WASHER FLAT 3 8 6 REPLACES P N 492598 15 492379 SCREW CAP 3 8 4 16 EM969013 NUT 3 8 NC ...

Page 56: ...PAGE 56 EM120 HYD PLASTER MORTAR MIXER OPERATION AND PARTS MANUAL REV 1 09 09 19 ENGINE SERVICE PARTS ...

Page 57: ...9 09 19 PAGE 57 ENGINE SERVICE PARTS NO PART NO PART NAME QTY REMARKS 1 17620Z0T305 TANK CAP CHROME PLATED 1 2 17672ZE2W01 FUEL FILTER 1 3 28462ZE3W01 ROPE RECOIL 1 4 17210ZE3010 AIR CLEANER ELEMENT 1 5 17218ZE3000 FILTER OUTER 1 6 9807955846 SPARK PLUG BPR5ES NGK 1 ...

Page 58: ...ion were in effect at the time of approval for printing Illustrations descriptions references and technical data contained in this manual are for guidance only and may not be considered as binding Multiquip Inc reserves the right to discontinue or change specifications design or the information published in this publication at any time without notice and without incurring any obligations UNITED ST...

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