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OPERATION AND PARTS MANUAL
MODELS
MQD2H
MQD3H
DIAPHRAGM PUMPS
(Honda GX120K1QX2 Gasoline Engine)
Revision #6 (10/27/11)
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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PROPOSITION 65 WARNING PAGE 2 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (10/27/11)
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NOTES MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (10/27/11) — PAGE 3
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TABLE OF CONTENTS HONDA GX120K1QX2 Engine MQ-D2H/D3H Gasoline Air Cleaner Assembly......................................... 46-47 Powered Diaphragm Camshaft Assembly ........................................... 48-49 Pumps Carburetor Assembly ......................................... 50-51 Proposition 65 Warning ............................................. 2 Control Assembly ............................................... 52-53 Table of Contents .................................................
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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 Username Order parts on-line using Multiquip’s SmartEquip website! 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 int
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SAFETY INFORMATION Do not operate or service the equipment before reading Potential hazards associated with the operation of this the entire manual. Safety precautions should be followed equipment will be referenced with hazard symbols which at all times when operating this equipment. may appear throughout this manual in conjunction with Failure to read and understand the safety safety messages. messages and operating instructions could Symbol Safety Hazard result in injury to yourself and ot
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SAFETY INFORMATION GENERAL SAFETY NOTICE CAUTION This equipment should only be operated by trained and qualified personnel 18 years of age and older. NEVER operate this equipment without proper protective clothing, shatterproof glasses, respiratory protection, Whenever necessary, replace nameplate, operation and hearing protection, steel-toed boots and other protective safety decals when they become difficult read. devices required by the job or city and state regulations. Manufacturer
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SAFETY INFORMATION PUMP SAFETY DO NOT pump water greater than 104º F. DO NOT pump liquids containing acid or alkali. DANGER ALWAYS check strainer before pumping. Make sure NEVER operate the equipment in an explosive strainer is not clogged. Remove any large objects, dirt atmosphere or near combustible materials. An or debris from the strainer to prevent clogging. explosion or fire could result causing severe bodily harm or even death. ALWAYS use a large basket strainer when pumping w
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SAFETY INFORMATION Power Cord/Cable Safety LIFTING SAFETY DANGER CAUTION NEVER let power cords or cables lay in water. When raising or lowering of the pump is required, always attach an adequate rope or lifting device to the correct NEVER use damaged or worn cables or cords. Inspect lifting point (handle) on the pump. for cuts in the insulation. NOTICE NEVER grab or touch a live power cord or cable with wet hands. The DO NOT lift machine to unnecessary heights. possibility exists o
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SPECIFICATIONS Table 1. Specifications (Pump) Tp ypeMp Q-D2H Diaphragm Pum MQ-D3H Diaphragm Pum Suction & Discharge 2) .00 in. (50.8 mm.) 3.00 in. (76.2 mm. Size Maximum Pumping 3,000 gallons/hour 5,400 gallons/hour Pump Capacity (11,340 liters/hour) (20,456 liters/hour) M) ax. Solids Diameter1) -1/2 in. (38.1 mm 1-5/8 in (41.275 mm M) ax Lift2) 6 ft. (7.92 meters 26 ft. (7.92 meters M) ax. Head2) 5 ft. (7.62 meters 25 ft. (7.62 meters Dry Net Weight 140 lbs. (63 Kg.) 160 lbs. (72 Kg.) Table 2.
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DIMENSIONS MQ-D2H/D3H — DIMENSIONS (PUMP) Figure 1. MQ-D2H/D3H Pump Dimensions Table 3. Dimensions A B C D E MODEL LENGTH HEIGHT WIDTH DISCHARGE SUCTION 39 in. 27.53 in. 25.68 in. 7.34 in. 5.62 in. MQ-D2H (99.06 cm.) (69.93 cm.) (65.23 cm.) (18.64 cm.) (14.27 cm.) 41.5 in. 22 in. 30 in. 6.2 in. 6.3 in. MQ-D3H (105.41 cm.) (55.88 cm.) (76.2 cm.) (15.75 cm.) (16 cm.) MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #6 (10/27/11) — PAGE 11
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MQ-D2H/D3H — GENERAL INFORMA GENERAL INFORMATION TION APPLICATION Elevation The MQD2H and MQD3H diaphragm pumps are designed to Higher elevations will effect the performance of the pump. Due to be used for de-watering applications. The suction and discharge less atmospheric pressure at higher altitudes, pumps DO NOT ports on the MQD2H use a 2-inch diameter opening, which allows have the priming ability that they have at sea level. This is due to the pump to pump at rate of approximately 3,000
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COMPONENTS MQ-D2H/D3H — PUMP COMPONENTS Figure 2 shows a typical application using the MQD2H or MQD3H diaphragm pump. Please note that this pump is intended for the removal of clean water and water containing some debris and solids. Maximum size of solids for the MQD2H should not exceed 1- 1/2 inches (38.1 mm) in diameter, and maximum size of solids for the MQD3H should not exceed 1-5/8 inches (41.275) in diameter. DO NOT set strainer on bottom of water bed. Placing the strainer above the water
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BASIC ENGINE Figure 3. Engine Controls and Components INITIAL SERVICING 6. Choke Lever – Used in the starting of a cold engine, or in The engine (Figure 3) must be checked for proper lubrication and cold weather conditions. The choke enriches the fuel filled with fuel prior to operation. Refer to the Honda manufacturers mixture. engine manual for instructions and details for operation and 7. Air Cleaner – Prevents dirt and other debris from entering servicing. the fuel system. Remove wing-n
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INSPECTION CAUTION - Read Manual Please read the entire maintenance section in this manual before servicing the pump. In addition for operator safety, please read all safey messages at the begining of the manual Figure 5. Engine Oil Dipstick (Oil Level) Inspection 1. Clean the pump, removing dirt and dust, particularly the engine cooling air inlet, carburetor and air cleaner. Table 6. Oil Type 2. Check the air filter for dirt and dust. If air filter is dirty, replace Season Temperature Oil Typ
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SETUP Handle Installation WARNING - Fill Cap The MQ-D2H/D3H diaphragm pumps are completely DO NOT open fill cap if pump is hot! Water inside may assembled except for the steering handle. Attach the steering be under pressure. handle to the pump base as shown in Figure 6. Hoses and Clamps 1. Check that all hoses are securely attached to the pump. Make certain suction hose (Figure 2) does not have any air leakage. Use teflon tape or pipe dope on NPT threads. GEAR BOX 2. Remember suction hoses must
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SETUP Diaphragm pumps will handle fluids CAUTION - Strainer containing considerable solids (see The strainer should be positioned so it will remain completely Table 1 for maximum solids diameter), NOTE under water. Running the pump with the strainer above however, if the mixture is too heavy to be pumped, water must be added until water for long periods can damage the pump. the mixture becomes sufficently fluid for pumping. CAUTION - Flammable Fluids Connecting Rod Bearing Lubrication DO NOT pum
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OPERATION MQ-D2H/D3H — OPERATION 4. Place the choke lever (Figure 12) in the "OPEN " position CAUTION - Read Manual if starting a warm engine or the temperature is warm. DO NOT attempt to operate the pump until the Safety, General Information and Inspection sections of this manual have been read and thoroughly understood. This section is intended to assist the operator with the initial start-up of the trash pump. It is extremely important that this section be read carefully before attempting
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MQ-D2H/D3H —OPERA OPERATION TION 7. If the engine has started, slowly return the choke lever Stopping The Engine (Figure 15 ) to the “OPEN” position. If the engine has not Normal Shutdown started repeat steps 1 through 6. 1. Move the throttle lever to the IDLE position (Figure 17) and run the engine for three minutes at low speed. Figure 17. Throttle Lever (Idle) 2. After the engine cools, turn the engine ON/OFF switch to the “OFF” position (Figure 18). Figure 15. Choke Lever (Open) 8. Befor
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MAINTENANCE Pump Vacuum Test Flapper Valve Replacement 1. Remove the two bolts that secure the suction port To perform the pump vacuum test do the following: chamber (Figure 20) to the pump well. Remove suction port chamber. Replace valves as required and 1. Start the engine as outlined in the initial start-up section, reassemble. and wait for the pump to begin pumping. 2 Check and make sure that there are no air leaks between the vacuum tester (Figure 21) and the inlet port on the pump. If air
