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Liquiflo FTS400 Series Safety, Installation, Operation And Maintenance Instructions

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Manual #FT00504
Series No. FTS400
Rev. No. 3
Liquiflo FTS Transfer Pump
Series No. FTS400
Safety, Installation, Operation, and Maintenance Instructions

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Summary of Contents for Liquiflo FTS400 Series

  • Page 1 Manual #FT00504 Series No. FTS400 Rev. No. 3 Liquiflo FTS Transfer Pump Series No. FTS400 Safety, Installation, Operation, and Maintenance Instructions...

  • Page 2: Table Of Contents

    Liquiflo FTS Transfer Pump User Manual Table of Contents Series No. FTS400 1 Safety Instructions Transfer pump reassembly Center plate disassembly, seal replacement, 2 Installation and Setup and reassembly Lifting Instructions Replacing center plate outer seals Installing Transfer Pump at its...

  • Page 3: Safety Instructions

    The user must analyze all aspects of the application, follow applicable industry standards, and follow the information concerning the product in the current product catalog and in any other materials provided from Liquiflo or its subsidiaries or authorized distributors.
  • Page 4 Liquiflo FTS Transfer Pump User Manual Safety Instructions Series No. FTS400...

  • Page 5: Installation And Setup

    Liquiflo FTS Transfer Pump User Manual Installation and Setup Series No. FTS400 Lifting Instructions The Transfer Pump weighs approximately 230 pounds. It can be lifted from its packaging using the lifting points depicted in Figure 1. Once the pump has been lowered to its intended location, remove the protective shipping caps from the front flange and top flange fluidic connections.

  • Page 6: Installing Transfer Pump At Its Service Location

    Liquiflo FTS Transfer Pump User Manual Installation and Setup Series No. FTS400 Installing Transfer Pump at its service location The Transfer Pump should be securely mounted to the floor or other suitable surface before operation. It is recommended that the Transfer Pump be mounted securely to the floor or other suitable surface in the final service location before operation.

  • Page 7: Pump Inlet And Outlet Connections

    When making threaded connections, be sure that all For any nozzle loading concerns, contact Liquiflo threads are sealed with the FTS Application Support; see page 3 of this proper sealing compound that is manual for contact information.

  • Page 8: Piping Guidelines

    • For assistance with pipe sizing, system layout, and valve or filter Liquiflo FTS Application selection, contact Liquiflo FTS Application Support; see page 3 of Support; see page 3 of this this manual for contact information. manual for contact information.

  • Page 9: Suction Piping Considerations

    Liquiflo FTS Transfer Pump User Manual Installation and Setup Series No. FTS400 Suction piping considerations To facilitate pump removal for service in rigid-piped systems, a 12 inch spool piece is recommended at the pump suction connection. Removal of the spool piece will allow the pump to be moved forward away from the driving unit for removal and service, Figure 1.

  • Page 10: Motor Control Device Guidelines

    Liquiflo FTS Transfer Pump User Manual Installation and Setup Series No. FTS400 Motor control device guidelines The transfer pump should always be ramped up to desired speed during WARNING startup and ramped down to stop during shutdown. Abruptly stopping the pump by removing power may cause premature failure of the pumping mechanism or a hazardous condition.

  • Page 11: Operations

    Liquiflo FTS Transfer Pump User Manual Operations Series No. FTS400 Prior to starting your Transfer Pump, go through the checklist below to verify Startup procedures you are ready to begin pump operation: Checklist Check Explanation/comment Checked Is all piping supported independently This helps to prevent: •...

  • Page 12: General Operating Procedures

    Liquiflo FTS Transfer Pump User Manual Operations Series No. FTS400 General operation procedures • The Transfer Pump is a positive displacement pump – never dead head the CAUTION pump (operating against a closed valve or plug). • If the Transfer Pump is being used for a dispensing application, a bypass...

  • Page 13: Maintenance And Service

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Parts description (Mechanical seal configuration)
  • Page 14 Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Parts description...
  • Page 15 Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Parts description Item Description Item Description Inlet Cover Drain Plug Inlet Wear Ring Center Plate Mounting Screws Pump Chamber Inlet Cover O-Ring Timing Gear Volute Chamber Mounting Screws...

  • Page 16: Service Kits

    Liquiflo FTS offers complete service kits for the replacement of parts on your Transfer Pump. The standard service kits are listed, but additional parts are available. Contact Liquiflo FTS Application Support for further assistance; see page 3 of this...

  • Page 17: Removing And Replacing Parts

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Removing and replacing parts Component assembly and screw locations In the event that service is required, such as replacing the pump head, motor, or seals inside the pump, follow the guidelines and procedures in this manual to ensure proper disassembly and reassembly of the Transfer Pump.

  • Page 18: Transfer Pump Disassembly

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Transfer Pump disassembly Removing pump head from drive unit Remove the four sets of fasteners that attach the pump head to the drive unit. NOTE: Pump head weighs approximately 230 pounds.

  • Page 19: Removing Gear Chamber And Center Plate From Pump Chamber

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Removing gear chamber and center plate from pump chamber housing 1. Using a 10 mm hex key, remove the eight M12 x 55 mm socket head cap screw fasteners that attach the gear chamber and center plate to the pump housing, Figure 1.

  • Page 20: Removing Center Plate From Gear Chamber

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Removing center plate from gear chamber Using a 8mm hex key, remove the four M10 x 35 mm socket head cap screws that attach the gear chamber and center plate, Figure 1.

  • Page 21: Removing Timing Gears And Keys

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Removing timing gears and keys 1. Before removing the timing gears, note the timing alignment marks, Figure 1, on the face of each gear If timing marks are not visible, match mark the gears to identify proper orientation for reassembly later.

  • Page 22: Removing Center Plate From Rotating Assemblies

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Removing center plate from rotating assemblies 1. After removing the timing gears and keys carefully pull the center plate vertically along the two drive shafts to remove it from the lobe gears, Figure 1.

  • Page 23: Removing Rotating Assemblies

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Removing rotating assemblies The two rotating assemblies each consist of a drive shaft, lobe gear, and nine wiper blades. Once you take out the center plate from the procedure mentioned in pervious page both drive shafts will be separated, Figure 1.

  • Page 24: Running Wiper Clearance Inspections

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Running wiper clearance inspection To determine if the wiper blade seals in the pump are still acceptable, both the wiper height and the running clearance must be measured. To check the running clearance, perform the following: 1.

  • Page 25: Installing Wiper Blades

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing the wiper blades Replace wiper blades and springs as an entire set. 1. Position the arms of the first spring in the cutout on the bottom of the wiper blade, Figure 1.

  • Page 26: Removing Pump Housing From Volute Housing

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Removing pump housing from volute housing NOTE: Early versions used socket head cap screws. Later versions switched to hex head bolts. 1. Using a 10 mm hex key or 19 mm wrench as appropriate, remove the eight M12 x 45 mm fasteners holding the pump housing to the volute housing, Figure 1.

  • Page 27: Removing Inlet Cover And Impeller

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Removing inlet cover and impeller Match marking the inlet cover and volute housing will aid in reassembly later to ensure correct flange hole orientation. 1. Using a 10 mm hex key, remove the six M12 x 45 mm socket head cap screws that secure the inlet cover to the volute housing, Figure 1.

  • Page 28: Transfer Pump Reassembly

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Transfer Pump Reassembly CAUTION The primary material of pump casing parts is aluminum and fasteners are stainless steel. Over tightening fasteners beyond the listed torque specification can damage the aluminum threads in pump parts.

  • Page 29: Replacing Center Plate Inner Seals And Needle Bearings

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Replacing center plate inner seals and needle bearings ™ Lubricate the inner lips of the shaft seals with Mobilgrease XHP 222. 1. Using a 3 mm hex key, remove the six M4 x 20 mm socket head cap screws from the face plate, Figure 1.
  • Page 30 Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Replacing center plate inner seals and needle bearing (continued) ™ Lightly pack the bearings with Mobilgrease XHP 222. Apply Loctite 222 to screw threads prior to installation 4. If the bearings are being replaced, remove the needle bearings using a bearing puller and gently prying upward, Figure 4.

  • Page 31: Installing Teflon Lip Seals

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing Teflon lip seals The Teflon shaft seal is a single use item. It cannot be reused after CAUTION disassembly. Ensure that only new Teflon shaft seals are being installed.
  • Page 32 Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing Teflon lip seals Slide the faceplate onto the shafts so that the trapping relief grooves face the lobes, Figure 1 & 2. Ensure that the seal pressure grooves are oriented as shown, Figure 3. Ensure that the shaft keyways are aligned properly, refer to section “Installing the timing gears and keys”...
  • Page 33 Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing Teflon lip seals Place a Teflon seal on the installation tool assembly, Figure 1. Ensure that the “cup” is open away from the flange, Figure 2. Remove the tapered cylinder from the assembly, Figure 3.
  • Page 34 Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing Teflon lip seals Slide the seal installation tool over the splines of the drive shaft, flange up, and slide the tool to the faceplate, Figure 1. Use a small flat head screwdriver between the seal and tool flange to hold the shaft seal in place while sliding the installation tool back off of the shaft, Figure 2.
  • Page 35 Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing Teflon lip seals ™ ® Apply Loctite thread locker to clean screw threads before installation. Lubricate lip seal OD’s with Dow Corning Molykote ® 111 lubricant. Lubricate the OD of the Teflon seals with Molykote 111 Do not allow the shafts to slide excessively along their axis within the Teflon seals.
  • Page 36 Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Replacing the volute housing needle bearings and rear shaft seals • Lubricate the inner lips of the shaft seals with Mobilgrease XHP ™ 222. • Lightly pack the bearings with Mobilgrease XHP ™...
  • Page 37 Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Replacing the volute housing needle bearings and rear shaft seals (continued) ™ Lightly pack the bearings with Mobilgrease XHP 222. 4. If the bearings are being replaced. remove the needle bearings using a bearing puller and gently prying upward, Figure 4.

  • Page 38: Replacing The Volute Chamber Front Seal

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Replacing the volute chamber front seal • Lubricate the inner lips of the shaft seals with Mobilgrease XHP ™ 222. • Lightly pack the bearings with Mobilgrease XHP ™...

  • Page 39: Gear Chamber Needle Bearing Removal And Replacement

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Gear chamber needle bearing removal and replacement (Mechanical seal configuration) The gear chamber assembly contains one mechanical seal, two needle bearings and two thrust washers. Removing thrust washers 1.
  • Page 40 Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Gear chamber needle bearing removal and replacement (Mechanical seal configuration) ™ Lightly pack the bearings with Mobilgrease XHP 222. Apply Loctite 222 to screw threads prior to installation 2.

  • Page 41: Replacing Gear Chamber Mechanical Seal

    3. Position the rotating element, with the seal facing the gear chamber, and lightly press over the shaft. 4. Use the Liquiflo FTS included setting tool to push the bellows into compression to the appropriate length. 5. Tighten the 6x set screws (#10-24) of mechanical seal on drive shaft while maintaining light pressure on the tool.

  • Page 42: Replacing The Gear Chamber O-Rings

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Replacing the gear chamber O-rings Lubricate O-rings with Dow Corning Molykote® 111 lubricant When the gear chamber is removed from the center plate, it is a good opportunity to replace the gear chamber O-rings.

  • Page 43: Replacing The Inlet Seal Wear Ring, Inlet Seal O-Ring, And Inlet Cover Housing O-Ring

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Replacing the inlet seal wear ring, inlet seal O-ring, and inlet cover housing O-ring Lubricate O-rings with Dow Corning Molykote® 111 lubricant 1. Install the inlet seal O-ring (size 2-246) onto the inlet seal wear ring, Figure 1.

  • Page 44: Installing The Inlet Cover And Impeller

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing the inlet cover and impeller ™ ® Apply Loctite thread locker to clean screw threads before installation. Replace the impeller in the volute housing, making sure the impeller is properly oriented inside the volute housing, Figure 1.

  • Page 45: Replacing The Pump Housing O-Rings

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Replacing the pump housing O-rings Lubricate O-rings with Dow Corning Molykote® 111 lubricant. 1. Identify the volute housing O-ring, lift it from its retaining channel, and discard. Position and press the new O-ring (size 2-265) into the retaining channel, Figure 1.

  • Page 46: Volute Housing

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing the pump housing onto the volute housing ™ ® Apply Loctite thread locker to clean screw threads before installation. Orient the volute chamber as shown in Figure 1.

  • Page 47: Installing Rotating Assemblies

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing the rotating assemblies 1. Ensure that all springs, wiper blades, and wear plates are properly installed on each rotating assembly before installation. 2. Grease the narrow ends of the shafts with Mobilgrease XHP™ 222. This is to ensure the shaft seals in the center plate do not hang up on the corners of each step on the shafts.

  • Page 48: Installing Timing Gears And Keys

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing the timing gears and keys CAUTION Insert the timing keys into the timing key slots in each of the drive shafts, Figure 1. PROPER TIMING AND Align both shaft assemblies for installation such that the key ways on ALIGNMENT OF THE GEARS each shaft are aligned as shown in Figure 1.

  • Page 49: Installing Gear Chamber To Center Plate

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing the gear chamber onto center plate ® ™ Apply Loctite thread locker to clean screw threads before installation. Install constant vent ball and spring into center plate, Figure 1.

  • Page 50: Installing Gear Chamber And Center Plate To Pump Housing

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing the gear chamber and center plate to pump housing ™ ® Apply Loctite thread locker to clean screw threads before installation. Align the pump housing with the gear chamber. Be sure that the alignment pin of the pump housing and center plate is properly engaged, Figure 1 Using a 10 mm hex key, install the eight hex socket screws and tighten to 468 in-lb (70.0 Nm), Figure 2.

  • Page 51: Refilling The Gear Oil Chamber

    Refill the gear oil chamber with 1 quart (900–950 mL) of Mobil 1™ 5W-30 synthetic motor oil, or an equivalent SAE 5W-30 product. Liquiflo FTS recommends Mobil 1™ 5W-30 synthetic for the Transfer Pump for longest life and highest performance.

  • Page 52: Lubrication Of Bearings - Service In Place

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Lubrication of bearings – Service in place • Use Mobilegrease XHP 222 to lubricate the needle bearings. • Do not grease the gear chamber bearings. These bearings are lubricated by the gear oil.

  • Page 53: Installing Pump Head To Drive Unit

    Liquiflo FTS Transfer Pump User Manual Maintenance and service Series No. FTS400 Installing the pump head to the drive unit ™ ® Apply Loctite thread locker to clean screw threads before installation. ® Lubricate O-rings with Dow Corning Molykote 111 lubricant.

  • Page 54: Troubleshooting

    Liquiflo FTS Transfer Pump User Manual Troubleshooting Series No. FTS400 Pump will not turn on No flow while pump is on Low flow while pump is on Pump doesn’t prime Excessive heat generated by pump Excessive noise coming from the pump (surging, burbling, whining, grinding, etc.) External leak of fluid –...

  • Page 55: Notes

    Liquiflo FTS Transfer Pump User Manual Notes Series No. FTS400...
  • Page 56 ©2020 Liquiflo Equipment Company SKG 8/20 Liquiflo Equipment Company Liquiflo FTS Fluid Transfer Pumps 443 North Avenue Garwood, NJ 07027, USA phone 1 (908) 518-0777 fax 1 (908) 518-1847 www.Liquiflo.com/FTS...

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