Page 2 - PROPOSITION 65 WARNING
PAGE 2 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) PROPOSITION 65 WARNING
Page 3 - NOTES
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 3 NOTES
Page 4 - Terms and Condition Of Sale; Component Drawings; TABLE OF CONTENTS; Specification and part number are subject to
PAGE 4 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) MQD2H/D3H GasolinePowered DiaphragmPumps Proposition 65 Warning ............................................. 2Table of Contents ...................................................... 4Parts Ordering Procedures ........
Page 5 - Ordering parts has never been easier!; Choose from three easy options:; Order via Internet; Order; Order via Fax; PARTS ORDERING PROCEDURES
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 5 www .multiquip .com Ordering parts has never been easier! Choose from three easy options: WE ACCEPT ALL MAJOR CREDIT CARDS! When ordering parts, please supply: ❒ Dealer Account Number ❒ Dealer Name and Address ❒ Ship...
Page 6 - SAFETY INFORMATION; SAFETY MESSAGES; DANGER
PAGE 6 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) SAFETY INFORMATION Do not operate or service the equipment before reading the entire manual. Safety precautions should be followed at all times when operating this equipment. Failure to read and understand the safety...
Page 7 - GENERAL SAFETY
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 7 SAFETY INFORMATION GENERAL SAFETY CAUTION NEVER operate this equipment without proper protective clothing, shatterproof glasses, respiratory protection, hearing protection, steel-toed boots and other protective dev...
Page 8 - PUMP SAFETY; LIFTING SAFETY; TRANSPORTING SAFETY; ENVIRONMENTAL SAFETY
PAGE 8 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) SAFETY INFORMATION PUMP SAFETY DANGER NEVER operate the equipment in an explosive atmosphere or near combustible materials. An explosion or fire could result causing severe bodily harm or even death. WARNING Accid...
Page 10 - SPECIFICATIONS; MQD2H Diaphragm Pump
PAGE 10 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) ) p m u P ( s n o i t a c i f i c e p S . 1 e l b a T p m u P e p y T p m u P m g a r h p a i D H 2 D - Q M p m u P m g a r h p a i D H 3 D - Q M e g r a h c s i D & n o it c u S e z i S ) . m m 8 . 0 5 ( . n i ...
Page 11 - DIMENSIONS
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 11 MQ-D2H/D3H — DIMENSIONS (PUMP) s n o i s n e m i D . 3 e l b a T L E D O M A H T G N E L B T H G I E H C H T D I W D E G R A H C S I D E N O I T C U S H 2 D - Q M . n i 9 3 ) . m c 6 0 . 9 9 ( . n i 3 5 . 7 2 ) . m ...
Page 12 - GENERAL INFORMATION
PAGE 12 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) MQ-D2H/D3H — GENERAL INFORMATION APPLICATION The MQD2H and MQD3H diaphragm pumps are designed to be used for de-watering applications. The suction and dischargeports on the MQD2H use a 2-inch diameter opening, which...
Page 13 - DO NOT; excessive amounts of sand and foreign debris.; COMPONENTS
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 13 Figure 2 shows a typical application using the MQD2H or MQD3H diaphragm pump. Please note that this pump is intended for theremoval of clean water and water containing some debris and solids. Maximum size of solids ...
Page 14 - touch these; NEVER; operate; CAUTION - Burn Hazard; Holds unleaded gasoline. For additional; BASIC ENGINE
PAGE 14 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) Figure 3. Engine Controls and Components INITIAL SERVICING The engine (Figure 3) must be checked for proper lubrication andfilled with fuel prior to operation. Refer to the Honda manufacturersengine manual for instr...
Page 15 - CAUTION - Read Manual; Adding fuel to the tank; attempt to start the engine until the; DANGER - Explosive Fuel; INSPECTION; UPPER LIMIT
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 15 Figure 4. Engine Oil Dipstick (Removal) Figure 5. Engine Oil Dipstick (Oil Level) 1. Clean the pump, removing dirt and dust, particularly theengine cooling air inlet, carburetor and air cleaner. 2. Check the air fil...
Page 16 - The discharge hose is usually a; collapsible; Make sure; suction strainer; open; fill cap; if pump is; Check that; discharge; Handle Installation; CAUTION - Transmission Fluid; Transmission fluid needs to be added prior to operation.; SETUP; CAUTION - Handle Mounting
PAGE 16 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) Before Starting 1. Read safety instructions at thebeginning of manual. 2. Place pump as near to water as possible, on a firm flat, level surface. NOTE Suction and discharge hoses areavailable from Multiquip. Contact...
Page 17 - strainer should be positioned so it will remain completely; under water; . Running the pump with the strainer above; pump flammable fluids, corrosive chemicals or fluids; CAUTION - Flammable Fluids
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 17 Gear Reduction Oil (Transmission) 1. Remove the transmission oil level plug (Figure 7). If oil begins to seep out as the plug is being removed, then itcan be assumed that the transmission oil is at the properoperati...
Page 18 - OPERATION; CAUTION - General Safety Precautions; wear approved eye and hearing; operate the pump in a confined; free flow of air
PAGE 18 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) 6. Grasp the starter grip (Figure 14) and slowly pull it out. The resistance becomes the hardest at a certain position, corre-sponding to the compression point. Pull the starter grip brisklyand smoothly for starting...
Page 19 - RUN
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 19 MQ-D2H/D3H —OPERATION 8. Before the pump is placed into operation, run the engine for several minutes. Check for fuel leaks, and noises that wouldassociate with a lose component. 9. To begin pumping, place the throt...
Page 20 - MAINTENANCE
PAGE 20 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) To perform the pump vacuum test do the following: 1. Start the engine as outlined in the initial start-up section, and wait for the pump to begin pumping. 2 Check and make sure that there are no air leaks betweenthe...
Page 22 - Rotation of Suction and Discharge Ports; Figure 22. Suction/Discharge Port Rotation; MUST; be; CAUTION - Stalled or Stopped Pump; WARNING - Lock Screw Torqueing
PAGE 22 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) Rotation of Suction and Discharge Ports In some applications, it may be preferable to have suction/discharge ports rotated 90° (Figure 22) to be in-line with thepump wheels. Perform the following procedure to rotate...
Page 23 - Seized Plunger; If the plunger arm has seized, perform the following:; Diaphragm Replacement; Replace diaphragm, reassemble in reverse order.
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 23 Seized Plunger If the plunger arm has seized, perform the following: 1. Remove plunger guard (Figure 24) by removing slottedscrew (2). 2. Disassemble pump and clean as described in steps 1thru 4 in the "Stalled ...
Page 26 - Pump Storage; Drain the fuel tank completely.; PREPARATION FOR LONG-TERM STORAGE
PAGE 26 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) Pump Storage For storage of the pump for over 30 days, the following isrequired: Drain the fuel tank completely. Run the engine until the fuel is completely consumed . Completely drain used oil from the engine...
Page 27 - TROUBLESHOOTING
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 27 G N I T O O H S E L B U O R T E N I G N E . 8 E L B A T M O T P M Y S M E L B O R P E L B I S S O P N O I T U L O S t r a t s o t t l u c i f f i D g u l p k r a p s t u b e l b a li a v a s i l e u F e l b a li a v...
Page 28 - Table 9. Pump Troubleshooting
PAGE 28 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) ) d e u n i t n o C ( G N I T O O H S E L B U O R T E N I G N E . 8 E L B A T M O T P M Y S M E L B O R P E L B I S S O P N O I T U L O S y r o t c a f s i t a s t o n n o i t a r e p O . s e t a u t c u lf d e e p ...
Page 30 - SAMPLE PARTS LIST; REMARKS Column; EXPLANATION OF CODE IN REMARKS COLUMN
PAGE 30 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) The following section explains the different symbols and remarks used in the Parts section of this manual. Use the help numbers found on the back page of the manual if there are any questions. SAMPLE PARTS LIST NO. ...
Page 31 - NOTE; SUGGESTED SPARE PARTS
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 31 NOTE Part number on this SuggestedSpare Parts List may super cede/replace the P/N shown in the textpages of this book. MQD2H/D3H DIAPHRAGM PUMP1 TO 3 UNITS WITHHONDA GX120UT1QX2 ENGINE Qty. P/N Description 3 ..........
Page 32 - NAMEPLATE AND DECALS ASSY.; NAME PLATE AND DECALS ASSY.; GREASE
PAGE 32 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) MQ-D2H/3H — NAMEPLATE AND DECALS ASSY. NAMEPLATE AND DECALS ASSY. NAME PLATE AND DECALS ASSY. MODEL SERIAL NO. GREASE CONNECTING ROD BEARING MONTHLY DCL1261 3 1 2 FRO N T BA CK T AG 4 Avoid equipment damage: Do not ...
Page 33 - PART NAME; DECAL, GREASE MONTHLY
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 33 MQ-D2H/3H — NAMEPLATE AND DECALS ASSY. NAMEPLATE AND DECALS ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 DCL1261 DECAL, GREASE MONTHLY 1 2 512910 DECAL, MQ LOGO 1 3 DECAL, NAMEPLATE .....................................
Page 34 - MQD2H — WATERBOX AND FLAP VALVE ASSY.
PAGE 34 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) WATERBOX AND FLAP VALVE ASSY. (2-INCH) MQD2H — WATERBOX AND FLAP VALVE ASSY.
Page 39 - ENGINE MOUNT
MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) — PAGE 39 HANDLE, ENGINE AND WHEEL ASSY. (2-INCH) NO. PART NO. PART NAME QTY. REMARKS 1 335411690 HANDLE .................................................................... 1 ...... REPLACES 215200000 2 13178 BOLT 1/2"-1...
Page 40 - MQD3H —WATERBOX AND FLAP VALVE ASSY.
PAGE 40 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) WATERBOX AND FLAP VALVE ASSY. (3-INCH) MQD3H —WATERBOX AND FLAP VALVE ASSY.
Page 46 - TERMS AND CONDITION OF SALE — PARTS
PAGE 46 — MQD2H/3H DIAPHRAGM PUMPS — OPERATION AND PARTS MANUAL — REV. #7 (05/24/13) PAYMENT TERMS Terms of payment for parts are net 30 days. FREIGHT POLICY All parts orders will be shipped collect or prepaid with the charges added to the invoice. All shipments are F.O.B. point of origin. Multiquip...
Page 48 - OPERATION AND PARTS MANUAL; Your Local Dealer is:; HERE’S HOW TO GET HELP; PLEASE HAVE THE MODEL AND SERIAL; UNITED STATES
OPERATION AND PARTS MANUAL Your Local Dealer is: HERE’S HOW TO GET HELP PLEASE HAVE THE MODEL AND SERIAL NUMBER ON-HAND WHEN CALLING UNITED STATES Multiquip Corporate Office MQ Parts Department 18910 Wi lm i ngton A v e . C ars on, C A 90746 Cont a ct : mq@mult i qu i p.com T e l. (800) 421-1244 F a ...
