Operation and Parts Manual MODEL cx400/px400 submersible pumps Revision #1 (12/03/10) To find the latest revision of this publication, visit our website at: www.multiquip.com THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
Table of Contents CX400/PX400 Submersible Pump Table of Contents...................................................... 2 Parts Ordering Procedures....................................... 3 Safety Information................................................. 4-7 Dimensions............................................................... 8 Specification............................................................. 9 Performance Curve.................................................. 10 General Information.......
www.multiquip.com Parts Ordering Procedures Ordering parts has never been easier! choose from three easy options: order via internet (dealers only): best deal! Effective: January 1st, 2006 If you have an MQ Account, to obtain a Username and Password, E-mail us at: parts@multiquip. com. Order parts on-line using Multiquip’s SmartEquip website! ■ View Parts Diagrams ■ Order Parts ■ Print Specification Information To obtain an MQ Account, contact your District Sales Manager for more information.
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 messages and operating instructions could result in injury to yourself and others. Potential hazards associated with the operation of this equipment will be referenced with hazard symbols which may appear throughout this manual in conjunction with safety messages.
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 devices required by the job or city and state regulations. Avoid wearing jewelry or loose fitting clothes that may snag on the controls or moving parts as this can cause serious injury. never operate this equipment when not feeling well due to fatigue, illness or when under medication.
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 Accidental starting can cause severe injury or death. alWaYS place the ON/OFF switch in the OFF position. do not place hands or fingers inside pump when pump is running. never disconnect any emergency or safety devices. These devices are intended for operator safety.
Safety Information NOTICE alWaYS make certain that the voltage supplied to the pump is correct. Always read the pump’s nameplate to determine what the power requirements are. Power Cord/Cable Safety danger control box Safety danger alWaYS have a qualified electrician perform the control box installation. The possibility exists of electrical shock or electrocution. NOTICE never let power cords or cables lay in water.
dimensions 9.76 in. (248 mm.) TOP VIEW 14.96 in. (380 mm.) FRONT VIEW 6.3 in. (160 mm.) CX400 PX400 Figure 1. CX400/PX400 Pump Dimensions page 8 — cx400/px400 Sub. pump • operation and parts manual — rev.
specification Table 1. Specifications Model CX400/PX400 Type Submersible Trash Pump Motor Type Condenser Start Condenser Drive Impeller Plastic Suction & Discharge Size 2 in. (50 mm) Maximum Pumping Capacity 72 gallons/minute/(273 liters/minute) Max Head 34 ft. (10.3 meters) Power 1/2 HP (.37 kw) Voltage Phase 1Ø 115 V Starting Amps 35.4 18.4 Running Amps 7 6.2 Control Box Required NO (See Note 3) Temperature Range 32° - 104°F (0° - 40°C) Thermal Overload Protection YES Rotation CCW (See Note 1) 3 15.
performance curve Figure 2. Pump Performance Curve page 10 — cx400/px400 Sub. pump • operation and parts manual — rev.
general information The Multiquip Model CX400 and PX400 submersible pumps are designed to pump water and is used for the draining (dewatering) of well casings construction sites, coffer dams, manholes, transformer vaults and excavations. Its slim design, only 10 inches (25.4 cm.) in diameter allows it to fit easily inside casings and eliminates the need for larger, more costly casings. The pump is powered by a 1/2 HP, 115-volt, single-phase motor for easy starting with a small 2,500-watt generator.
components allows the pump to run dry for a limited period of time 5. Discharge Port – Connect a 2-inch hose to this port. Remember to adequately support the discharge hose to avoid stress on the pump. 1 2 6. Mechanical Seal Oil Plug – Remove this plug to check and add lubrication oil (Paraffin P70 lubricant) to the oil cavity. This oil protects the mechanical seal. Oil cavity should be full enough to cover seal spring. 8 7.
direct power operation Direct Power Operation The CX400/PX400 submersible pumps can be configured to operate by direct power (Figure 4) or connected to a control box (Figure 10) utilizing float switches. When the pump is connected directly to a 1Ø, 115 VAC, 60 Hz power source, the pump will operate soon as power is applied. It is suggested that a quick disconnect switch be installed as a means of turning the power on and off.
float switches Mechanical Float Switch Design Features Mechanically activated float switches offer a reliable low current control for dewatering applications. Float switch housings are constructed of high-impact, corrosion resistant polypropylene with mechanically activated, snap action contacts. How It Works The mechanical float switch control will turn ON (close) when the float tips 45° above -horizontal, indicating a high level, and turns OFF (opens) when the float switch drops 45° below horizontal.
float switches Float Switches For unattended operation of the submersible pump two float swith methods can be used single or dual. The single float switch (Model SW1A) will allow the pump to turn on and off depending on the length of the tether. When using the dual float switch (Model SW2A) method the pump will turn on or off at a pre-determined water level. This water level is set by the length of the tether. NOTICE Mounting The Float Switches 1.
float switches (control box) CB3 Control Box For special remote pumping applications of the submersible pump, a control box (Model CB3) is required. This water resistant control box (Figure 10) provides watertight housing and glands to prevent water from leaking into the box, and a float switch interface. The CB3 control box will require the use of two SW-1WOPA float switches, no plug, bare wires for direct connection to the control box.
operation Hose Connections 1. Connect a 2-inch hose to the discharge port on the pump as shown in Figure 11. Make sure that hose is attached correctly to the discharge port. Attaching Lifting Rope 1. Attach a suitable lifting cable (rope) to the carrying handle (Figure 11) on the pump and lower the pump into place. For applications where there is an excessive amount of mud, grit or silt, the use of a support platform is desirable.
operation Control Box Installation Single-Phase Power Installation (Input) The following procedure outlines the steps for connecting the pump to a control box. The CX400/PX400 submersible pumps require 1Ø, 115 VAC, 60 Hz, power for normal operation. DANGER The CX400 and PX400 submersible pumps are also designed to work with a control box.This control box contains the necessary electronics (float switch connections) to operate the pump. Remember this control box contains hazardous voltages.
operation Connecting Dual float Switch (SW-1WOP) To Control Box 1. Remove the float switch input connector housing, then route the float switch wires through the cable gland on the control box. Attach the wires of the float switch to the terminal block as indicated by Table 5 and Figure 10. Table 5. Dual Float switch Connections Float Terminal Wire Switch Block No. Color TB1-A1 Black Start TB1-A2 White TB1-B8 Black Stop TB1-B7 White 2.
operation Turning On The Pump Automatic Operation If all of the pump's electrical requirements have been met, place the circuit breaker or power ON/OFF switch in the ON position. 1. For unattended operation of the pump, place the operation switch (Figure 15) in the AUTO position. The CB3 control box has an operation switch located on the front cover. This switch has 3 positions, AUTO, MANUAL and OFF. The AUTO position allows the pump to run in an un-attended mode.
maintenance Cleanup Changing Lubrication Oil (4,000 hours/12 months) 1. Wipe off any mud or debris that might have attached itself to the pump. 2. If the pump was used to pump mud, grit or silt, flush vigorously with clean water. 1. If lubrication oil level is low, block the oil fill opening with a finger and lay pump on its side (Figure 18) to drain oil into a small container. 3. Store pump in a clean dry place away from dirt and debris.
maintenance Inspecting Lubrication Oil (Mechanical Seal) Impeller/Mechanical Seal Replacement (CX400) 1. Block the oil fill opening with a finger and roll pump to one side to drain (Figure 18) oil into a small transparent container. Reference the following procedure and Figure 21 for the removal of the impeller and mechanical seal. 2. If oil is cloudy (milky) or has water in it, indicates that mechanical seal is defective or worn. Replace mechanical seal. 1.
maintenance Electrical Insulation Testing NOTICE Why perform electrical insulation testing? Insulation resistance is moisture and temperature sensitive. When temperature increases, insulation resistance decreases, and vice versa. Electrical insulation starts to age as soon as it's made. Harsh environments, especially those with extreme temperature changes and/or chemical contamination, cause further deterioration of the insulation (power cord).
TROUBLESHOOTING Table 8. Pump Troubleshooting SYMPTOM Pump Fails To Start Pump Fails to Deliver Full Output Water in Mechanical Seal Oil POSSIBLE PROBLEM SOLUTION Incorrect voltage/amps? Check that proper voltage (115 VAC, 60 Hz, singlephase) is being supplied to the pump. Also check that there is an adequate amount of current (amps) to run the pump. Check power source circuit breaker. Check electrical connections? If using float switches check wiring, inspect power cord.
cb3 Control BoX wiring diagram 115 VAC, 60 Hz. ELECTRIC MOTOR WIRING DIAGRAM LEAD WIRES AC POWER CORD U V MAIN COIL BLACK (LINE) WHITE (NEUTRAL) AUXILIARY COIL GREEN (GROUND) CAPACITOR CENTRIFUGAL SWITCH CB3 CONTROL BOX WIRING DIAGRAM CONTACTOR BLACK PUMP POWER CORD T1 BLK INPUT POWER CORD L1 BLACK CIRCUIT BREAKER BLACK L N GND COIL GREEN EXTERNAL 1-PHASE (115 VAC, 60 Hz.) POWER SOURCE WHITE GREEN GREEN SUBMERSIBLE PUMP POWER ON LAMP PX400 T2 WHT GROUND CHASSIS GND.
Explanation of Code in Remarks Column 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. NOTICE The contents and part numbers listed in the parts section are subject to change without notice. Multiquip does not guarantee the availability of the parts listed. Sample partS liSt no. 1 2% 2% 3 4 part no. part name QtY. remarKS 12345 BOLT .....................1 .....
Suggested Spare Parts CX400/PX400 SUBMERSIBLE PUMPS 1 TO 3 UNITS Qty. P/N Description 1 ...........020CX400120........AC CORD WITH GLAND CX400 1............020CX400060........MECHANICAL SEAL CX400 1 ...........020PX400120........AC CORD WITH GLAND PX400 1............020PX400060........MECHANICAL SEAL PX400 NOTICE Part numbers on this Suggested Spare Parts list may supersede/replace the part numbers shown in the following parts lists. cx400/px400 Sub. pump • operation and parts manual — rev.
CX400 pump assy. page 28 — cx400/px400 Sub. pump • operation and parts manual — rev.
CX400 pump assy. NO. 1 3 4 5 7 8 34 42 43 53 60 65 67 74 81 119 120 121 125 126 156 157 160 299-1 299-2 300 398 399 400 444 445 448 530 531 567 829 872 874 PART NO.
PX400 pump assy. page 30 — cx400/px400 Sub. pump • operation and parts manual — rev.
PX400 pump assy. NO. 1 3 7 8 23 24 34 42 43 53 60 65 67 74 102 103 104 106 107 119 120 125 260 263 299 300 321 333 431 448 829 872 918 PART NO.
Terms and Conditions of Sale — Parts paYment termS 5. Parts must be in new and resalable condition, in the original Multiquip package (if any), and with Multiquip part numbers clearly marked. 6. The following items are not returnable: Multiquip reserves the right to quote and sell direct to Government agencies, and to Original Equipment Manufacturer accounts who use our products as integral parts of their own products. a. Special expediting Service Terms of payment for parts are net 30 days.
notes cx400/px400 Sub. pump • operation and parts manual — rev.
Operation and Parts Manual HERE’S HOW TO GET HELP PLEASE HAVE THE MODEL AND SERIAL NUMBER ON-HAND WHEN CALLING UNITED STATES Multiquip Corporate Office 18910 Wilmington Ave. Carson, CA 90746 Contact: mq@multiquip.com MQ Parts Department Tel.
