Liquiflo FTS400 Series Setup guide

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

1 Safety Instructions 3
2 Installation and Setup 5
Lifting Instructions 5
Installing Transfer Pump at its
service location 6
Pump inlet and outlet connections 7
Piping guidelines 8
Suction piping considerations 9
Motor control device guidelines 10
3 Operations 11
Startup procedures 11
Checklist 11
Pump priming 11
General operating procedures 12
Shutting down the Transfer Pump 12
Flushing the Transfer Pump 12
Storage 12
4 Maintenance and service 13
Parts description 13
Service Kits 16
Removing and replacing parts 17
Component assembly and
screw locations 17
Transfer Pump disassembly 18
Draining gear oil chamber 18
Removing pump head from drive unit 18
Removing gear chamber and
center plate from pump chamber 19
Removing center plate from gear chamber 20
Removing timing gears and keys 21
Removing center plate from rotating
assemblies 22
Removing rotating assemblies 23
Removing wiper blades 23
Running wiper clearance inspections 24
Installing wiper blades 25
Removing pump housing from
volute housing 26
Removing inlet cover and impeller 27
Transfer pump reassembly 28
Center plate disassembly, seal replacement,
and reassembly 28
Replacing center plate outer seals 28
Replacing center plate inner seals and needle
bearings 29
Installing Teflon lip seals 31
Replacing volute housing needle bearings and
rear shaft seals 36
Replacing the volute chamber front seal 38
Gear chamber needle bearing removal and
replacement 39
Replacing gear chamber mechanical seal 41
Replacing the gear chamber O-rings 42
Replacing the inlet seal wear ring, inlet seal
O-ring, and inlet cover housing O-ring 43
Installing the inlet cover and impeller 44
Replacing the pump housing O-rings 45
Installing pump housing onto
volute housing 46
Installing rotating assemblies 47
Installing timing gears and keys 48
Installing gear chamber to center plate 49
Installing gear chamber and center plate to
pump housing 50
Refilling the gear oil chamber 51
Lubrication of bearings –Service in place 52
Installing pump head to drive unit 53
5
Troubleshooting 54
6
Notes 55
Table of Contents
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
2

Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
3
WARNING –USER RESPONSIBILITY
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR RELATED ITEMS CAN
CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.
This document and other information from Liquiflo Equipment Company, its subsidiaries and authorized
distributors provide product or system options for further investigation by users having technical
expertise. The user, through its own analysis and testing, is solely responsible for making the final
selection of the system and components and assuring that all performance, endurance, maintenance,
safety and warning requirements of the application are met. 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.
To the extent that Liquiflo or its subsidiaries or authorized distributors provide component or system
options based upon data or specifications provided by the user, the user is responsible for determining
that such data and specifications are suitable and sufficient for all applications and reasonably
foreseeable uses of the components or systems.
OFFER OF SALE
Please contact your Liquiflo FTS representative for a
detailed “Offer of Sale”.
The content of this manual may be revised without prior
notice. Please consult with your Liquiflo FTS
representative to obtain the most up to date revision.
1Safety Instructions
Liquiflo FTS Application Support contact information
Liquiflo FTS Application Support
Phone: [phone]
E-mail: [email protected]
Monday –Friday 9:00 am –5:00 pm EST

Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
4
1Safety Instructions

2Installation and Setup
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
5
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.
Figure 1
Lifting Eye Bolt Lifting Eye Bolt

The Transfer Pump should be securely mounted to the floor or other
suitable surface before operation.
2Installation and Setup
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
6
Installing Transfer Pump at its service location
It is recommended that the Transfer Pump be mounted securely to the floor or other suitable surface in the final
service location before operation.
The Transfer Pump achieves its signature high performance and efficiency through the use of a highly
engineered impeller stage, providing a significant performance increase in the primary flow direction. Figure 2
shows the directionality of the pump flow –the primary flow Direction #1 is considered the forward direction in
which the Transfer Pump has the highest performance, whereas the secondary flow Direction #2 is considered
the reverse direction. It is important to mount the Transfer pump in an orientation suitable for minimizing the
number of elbows and other fittings to achieve the desired fluidic performance of the Transfer Pump. See
Section 3, Installation and setup, Piping guidelines for fluidic connections and the Pump Data Package for
detailed engineering data on the performance of the Transfer Pump in both Direction #1 Forward and Direction
#2 Reverse.
Figure 1
Be sure to mount the Transfer Pump
in an appropriate orientation to
benefit from the performance boost of
the impeller stage.
Figure 2
4X Ø.75
Ø13.78[350mm]
14 TOOTH
1.25” SPLINE
12/24 DIAMETRAL PITCH
Ø11.614[295mm]
2.68”
1
Forward
Forward
Reverse
Reverse
2
2
1

2Installation and Setup
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
7
Pump inlet and outlet connections
CAUTION
When making flange
connections, be sure that all
flanges are sealed with the
proper gasket or seal for your
application, and that all
fasteners have been tightened
to the appropriate torque setting.
When making threaded
connections, be sure that all
threads are sealed with the
proper sealing compound that is
appropriate for your application.
It is recommended that suction and discharge
pressure gauges be installed at the inlet and outlet
locations.
Do not suspend the Transfer Pump by its flanges –it should be securely mounted to the floor
or other suitable surface according to Section 3, Installation and Setup, Installing the Transfer
Pump. Do not draw piping into alignment with the flanges with excessive force –this will put
unsafe strain on the Transfer Pump. Do not allow flanges to support the weight of the piping –
ensure that all piping is properly suspended or supported independently of the Transfer Pump.
CAUTION
8X Ø.75
THRU HOLES
DISCHARGE FLANGE DETAIL
ANSI 150 4”
4” NPTF
SUCTION FLANGE DETAIL
ANSI 150 4”
4” NPTF
8X Ø.75
THRU HOLES
17.786
31.44
17.744
20.605
6.417
11.327
6.299
For any nozzle loading concerns, contact Liquiflo
FTS Application Support; see page 3 of this
manual for contact information.
Ensure that the suction piping is correctly
submerged below the surface of the fluid –while
the pump is able to self-prime and is capable of
providing suction lift in accordance with the Pump
Data Package, the suction inlet must not be
partially submerged or too close to the surface as
the high flow of the Transfer Pump will disturb the
fluid surface and prevent proper operation.

2Installation and Setup
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
8
Piping guidelines
•All piping MUST be independently supported, and MUST not rely
on the Transfer Pump for support.
•If there is no bypass valve option on your Transfer Pump, you
MUST provide a bypass valve in the process piping on any
discharge side of the Transfer Pump; since the Transfer Pump is
reversible, this may be on both sides of the Transfer Pump
depending on your application. The bypass return MUST be
routed back to the tank and not back to the suction side of the
Transfer Pump; otherwise, an over-temperature condition may be
created in the pumping fluid which would not be detected during
bypass operation.
•For best performance, allow for at least five straight-pipe
diameters free of any bends or valves at any Transfer Pump inlet;
since the Transfer Pump is reversible, this may be on both sides
of the Transfer Pump depending on your application.
•If there is more than one Transfer Pump installed on the same
fluid source, ensure that each Transfer Pump has an independent
suction line to the fluid source.
•Install appropriate isolation valves in the process piping around
the Transfer Pump so that it may be properly drained and/or
removed for service. Size the valves in accordance with the
process piping –valves that are too small will reduce Transfer
Pump performance.
•Ensure that all piping and joints are free of leaks, including
vacuum leaks which may ingest air and reduce pump
performance.
•It is good practice to minimize both the major and minor pressure
losses in the piping system. To do so, minimize the total number
of elbow fittings, valves, and pipe bends; keep the length of the
total piping system as short as is practical; and use an
appropriately large diameter pipe size with regard to the total
length of piping. The user’s qualified personnel is responsible for
calculating the appropriate pipe diameter for the required pipe
length, system height, pumping fluid, and flow requirements. See
Pump Data Package for information on the Transfer Pump’s
performance.
• It is the responsibility of the user’s qualified personnel to assess
the need for filtration in the pumping application. The Transfer
Pump should be installed with a 300-micron filter or finer. Keep in
mind that since the pump is reversible, you may need to install a
filter on both sides of the Transfer Pump, depending on your
application. When any filter is installed, you should monitor the
filter for life to make sure it does not become clogged during
operation, as clogged filters will significantly reduce pumping
performance. Filters that are especially fine will negatively impact
pumping performance even when new.
•For assistance with pipe sizing, system layout, and valve or filter
selection, contact Liquiflo FTS Application Support; see page 3 of
this manual for contact information.
CAUTION
Ensure that the installation has
adequate Net Positive Suction
Head Available (NPSH) for the
fluid to be pumped. See Pump
Data Package. For assistance
with calculating appropriate
NPSHA, contact Liquiflo FTS
Application Support; see page 3
of this manual for contact
information.
CAUTION
If your Transfer Pump does not
include the bypass valve option,
bypass valve(s) MUST be
installed in your process piping.
A bypass valve is REQUIRED
for each flow direction in which
the pump will be operated.
CAUTION
It is the responsibility of the
user's qualified personnel to
appropriately implement
grounding connections for the
fluid plumbing if the application
requires it. THE ANODIZED
COATING OF THE PUMP
HEAD PREVENTS THE PUMP
HOUSING FROM BEING
GROUNDED. The user should
install a grounding strap
between the inlet and outlet pipe
flanges if the application
requires it. For more information
or assistance with determining
grounding requirements, contact
Liquiflo FTS Application
Support; see page 3 of this
manual for contact information.

Spool installed
Spool removed
Pump moved
2Installation and Setup
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
9
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.
Figure 1

2Installation and Setup
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
10
Motor control device guidelines
The transfer pump should always be ramped up to desired speed during
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. If an electric motor is used to drive the
pump, a soft starter or variable frequency drive (VFD) should be included in
the motor control circuit to achieve this. The FTS400 can be operated in both
the forward (1) and reverse (2) directions. If it is desired to be able to run the
pump in both directions, the circuit design should include this option. If using a
hydraulic motor, pump rotation should be initiated and then pump speed
ramped up to the desired point. The FTS400 can be operated in both the
forward (1) and reverse (2) directions. If it is desired to be able to run the
pump in both directions, the hydraulic motor supply circuit should be designed
accordingly. If using a combustion engine to drive the pump, pump rotation
should be initiated and then pump speed ramped up to the desired point.
WARNING
The Transfer Pump MUST be
operated using a variable
frequency drive or Soft Starter.
Contact Liquiflo FTS Application
Support for complete details or
recommendations; see page 3
of this manual for contact
information.

3Operations
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
11
Startup procedures
Checklist
Prior to starting your Transfer Pump, go through the checklist below to verify
you are ready to begin pump operation:
Check
Explanation/comment
Checked
Is all piping supported independently
of, and lined up naturally with, the
pump flange?
This helps to prevent:
•
Strain on the pump
•
Misalignment between the pump and the drive unit
•
Wear on the pump bearings and the coupling
•
Wear on the pump bearings, seal, and shafting
Is the piping as short as possible?
This helps to minimize friction losses.
Are only necessary fittings used?
This helps to minimize friction losses.
Are all the piping joints and fittings
airtight?
This prevents air from entering the piping system or
leaks that occur during operation.
Are all required valves open before
operation?
Do not operate the pump against a blocked discharge
–
this will “dead head” the pump and cause immediate
damage to the pumping mechanism
Are any electrical connections made
to all applicable codes and standards?
This helps prevent dangerous electrical hazards
Are all covers in place?
This includes the junction box covers and any other
safety guards required for your application. This helps
prevent dangerous electrical hazards as well as serious
personal injury or death
Is the pump securely mounted at the
service location?
This will ensure safe operation and prevent serious
personal injury or death
If a motor is being used, have you
installed a variable frequency drive
(VFD) or Soft Starter?
Using these devices will prevent premature failure of the
Transfer Pump and can prevent serious personal injury,
in addition to providing potential economic benefits
Pump priming
The Transfer Pump is self-priming, however the ability
of the pump to self-prime is related to the Net Positive
Suction Head Available (NPSHA) in the installation. As
long as there is sufficient NPSHA, the Transfer Pump
will successfully prime. The amount of time it will take
to prime depends on the dry volume of the piping on the
suction side of the pump. To reduce priming time,
reduce the volume of empty piping on the suction side
of the system.
Understanding the Net
Positive Suction Head
(NPSH) requirements of your
Liquiflo FTS pumping unit is
critical to its performance.

3Operations
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
12
General operation procedures
•The Transfer Pump is a positive displacement pump –never dead head the
pump (operating against a closed valve or plug).
•If the Transfer Pump is being used for a dispensing application, a bypass
valve must be installed to return the discharge flow back to the storage
tank. See Section 3, Installation and setup, Piping guidelines for more
information.
•Always ramp the transfer pump up to speed to start up, and down from
rated speed to shut down. See Section 3, Installation and setup, for
information on motor control device requirements.
•The FTS400 is reversible. The performance in Direction 1 –Forward
(clockwise) is different than the performance in Direction 2 –Reverse
(counterclockwise) due to the centrifugal boost added by the Transfer
Pump’s impeller. See Pump Data Package for more information.
Shutting down the Transfer Pump
The Transfer Pump should be brought to a stop by decelerating it using the
control device, either a Variable Frequency Drive or Soft Starter. Abruptly
stopping the pump by removing power from the motor may cause premature
failure of the pumping mechanism or a hazardous condition.
Flushing the Transfer Pump
1. Purge the suction and discharge lines –The Transfer Pump can be
run dry, so there is no danger of damaging it if the pump is used to
clear the lines.
2. Safely isolate the fluid media source once the suction and discharge
lines are purged.
3. DO NOT CLOSE ANY DISCHARGE VALVE(S) WHILE THE PUMP
IS OPERATING. This will cause a DEAD HEAD condition in the
pump and will result in immediate damage to the pumping
mechanism.
Storage
If the unit is not going to be installed immediately, it should be stored
indoors, covered with a waterproof sheet, and with all open ports
plugged. If long-term storage is expected (six months or more), it is
recommended that the pump be completely filled with a clean, non-
corrosive fluid to prevent the entry of moisture. Acceptable fluids are
commonly available hydraulic oils or oil-based lubricant fluids. DO NOT
USE WATER.
WARNING
Disconnect electrical/motive
power to the Transfer Pump
before service.
CAUTION
Be sure all appropriate lock-out/
tag-out procedures have been
followed before performing any
service on the Transfer Pump,
and ensure that all appropriate
personal protective equipment
(PPE) is worn at all times. It is
the responsibility of the user’s
qualified personnel to safely
flush and service the Transfer
Pump.
CAUTION
Allow the Transfer Pump to cool
before touching it.
WARNING
Your pumping fluid may be
hazardous –identify the fluid
and take any appropriate
actions before flushing the
pump.
CAUTION
Your pumping fluid may be
flammable –identify the fluid
and take any appropriate
actions before flushing the
pump.

4Maintenance and service
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
13
Parts description (Mechanical seal configuration)

4Maintenance and service
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
14
Parts description

4Maintenance and service
15
Parts description
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
Item Qty Description Item Qty Description
1 1 Inlet Cover 33 1 Drain Plug
2 1 Inlet Wear Ring 34 4 Center Plate Mounting Screws
3 1 Pump Chamber 35 1 Inlet Cover O-Ring
4 2 Timing Gear 36 8 Volute Chamber Mounting Screws
5 2 Key 37 8 Gear Chamber Mounting Screw
6 1 Center Plate 38 8 Thrust Washer Mounting Screw
7 4 Thrust Washer 39 1 Pump Chamber Elbow O-Ring
8 1 Face Plate-Center Plate 40 1 Cooling Chamber Check Valve Ball
9 4 Needle Bearing, ID-1.375" 41 1 Cooling Chamber Check Valve Spring
10 6 Shaft Seal - Center Plate 42 2 Grease fitting
11 1 Center Plate O-ring, Inner 43 4 Sealing screw
12 3 Center Plate O-ring, Outer 44 1 Accessory flange o-ring
13 1 Drive Shaft
14 2 Lobe Gear
15 18 Wiper Blade
16 36 Spring
17 1 Driven Shaft
18 1 Volute Chamber
19 1 Thrust Bushing
20 1 Face Plate - Volute Chamber
21 4 Needle Bearing, ID-1.125"
22 3 Shaft Seal-Volute Chamber
23 1 Lock Ring
24 12 Face Plate Mounting Screw
25 1 Impeller
26 1 Gear Chamber
27 1 Mechanical Seal
28 1 Volute Chamber Drain Plug
29 1 Inlet Seal O-Ring
30 6 Inlet Cover Mounting Screw
31 1 Gear Box Oil Port Plug
32 2 Grease Port Plug

4Maintenance and service
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
16
Parts List Service Kit
Item Qty Description 1 2 3 4
1 1 Inlet Cover
2 1 Inlet Wear Ring •
3 1 Pump Chamber
4 2 Timing Gear •
5 2 Key •
6 1 Center Plate
7 4 Thrust Washer •
8 1 Face Plate-Center Plate
9 4 Needle Bearing 1.125” •
10 6 Shaft Seal - Center Plate •
11 1 Center Plate O-ring, Inner •
12 3 Center Plate O-ring, Outer •
13 1 Drive Shaft •
14 2 Lobe Gear •
15 18 Wiper Blade •
16 36 Spring •
17 1 Driven Shaft •
18 1 Volute Chamber
19 1 Thrust Bushing • •
20 1 Face Plate - Volute Chamber
21 4 Needle Bearing 1.375 •
22 3 Shaft Seal-Volute Chamber •
23 1 Lock Ring •
24 12 Face Plate Mounting Screw
25 1 Impeller
26 1 Gear Chamber
27 1 Mechanical Seal •
28 1 Volute Chamber Drain Plug
29 1 Inlet Seal O-Ring • •
30 6 Inlet Cover Mounting Screw
31 1 Gear Box Oil Port Plug
32 2 Grease Port Plug
Parts List Service Kit
Item Qty Description 1 2 3 4
33 1 Drain Plug
34 4Center Plate Mounting
Screws
35 1 Inlet Cover O-Ring •
36 8Volute Chamber Mounting
Screws
37 8Gear Chamber Mounting
Screw
38 8Thrust Washer Mounting
Screw
39 1 Pump Chamber Elbow O-Ring •
40 1Cooling Chamber Check
Valve Ball
41 1Cooling Chamber Check
Valve Spring
42 2 Grease fitting
43 4 Sealing screw
44 1 Accessory flange o-ring •
Service Kits
Service Kit #1
Item Qty
Wiper Blades 18
Springs 36
Inlet seal wear ring 1
Inlet seal O-ring 2-238 1
Service Kit #2
Item Qty
Inner Center Plate O-Ring 1
Outer Center Plate O-Ring 1
Inlet Seal O-Ring 1
Inlet Cover O-Ring 1
Pump Chamber Elbow
O-Ring 1
Accessory flange O-ring 1
Shaft seals 1125-1800 6
Shaft seals 1375-2000 3
Snap ring 1
Thrust bushing 1
Mechanical Seal 1
Table 2 –Transfer Pump service kit contents 1
1 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
manual for contact information.
How to order service kits:
Contact Liquiflo FTS Application Support;
see page 3 of this manual for contact
information.
Table 1 –Parts List
Service Kit #4
Item Qty
Timing gears 2
Thrust washers 4
Thrust bushing 1
1.125” Bearing 4
1.375” Bearing 4
Shaft Keys 2
Service Kit #3
Item Qty
Drive shaft assembly 1
Driven shaft assembly 1

4Maintenance and service
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
17
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.
Following these instructions closely will ensure that your Transfer Pump returns to the desired performance levels after
any service event.
All O-rings and shafts seals
are to be lubricated when
called for in the assembly
instructions. Look for
identification of the
appropriate lubricant in each
step.
Many of the fasteners in the
Transfer Pump are installed
with a thread locking
compound. Look for
identification of the
appropriate Threadlocker in
each step.
Because many of the
fasteners will have thread
locker on them once they are
removed, be sure to clean
the threads of any fastener
before applying fresh thread
locker. This will ensure the
best performance of the
thread locker and prevent
errors in properly setting the
assembly torque of each
fastener.
CONSUMABLES
Mobilgrease XHP™222
Loctite™ 222
Loctite™ 243
Dow Corning Molykote111
Mobil 1™ 5W-30 synthetic –1 quart (950 mL)
TOOLS
Screwdrivers: Phillips #2, Large flathead
Hex keys: 3mm, 6mm, 8 mm, 10 mm, 1/8”, 3/16”, 1/2”
Hex bit sockets: 3mm, 6mm, 8 mm, 10 mm, 1/8”,3/16”, 1/2”
Combination wrench: 19 mm
Crowsfeet wrench: 19 mm
Torque wrenches usable from 10 in-lb up to 82 ft-lb
(1.1 Nm up to 112 Nm)
Soft-faced mallet
Dial caliper, up to 6”
Snap-ring pliers with 0.070" diameter tips
Seal removal tool for 1.125” and 1.375” ID seals
Blind (ID) bearing puller for 1.125” and 1.375” ID bearings
Mechanical seal puller for 1.375” seal
Grease gun

Figure 1
4Maintenance and service
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
18
Removing pump head from drive unit
1. Remove the four sets of fasteners that attach the pump head to the drive unit.
NOTE: Pump head weighs approximately 230 pounds.
2. Pull pump head away from motor.
Transfer Pump disassembly
Figure 1
Draining gear oil chamber
The hybrid lobe pump ships from the factory with lifetime oil, so there are no scheduled oil changes needed. However,
drainage of the gear oil is required for disassembly for service. It is recommended that the gear oil be replaced with
fresh oil whenever such service is performed. Follow these steps to drain and replace the gear oil:
1. Using Phillips #2 screwdriver, remove oil vent plug to facilitate oil draining, Figure 1.
2. Using a 6 mm hex key, remove oil drain plug (M14x1.5), and let oil drain into approved container, Figure 2.
3. Dispose of used oil according to applicable laws and regulations.
Figure 2

4Maintenance and service
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
19
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.
2. Carefully pull the gear chamber sub assembly to remove it from the pump chamber, Figure 2.
3. If the gear chamber assembly sticks to the pump chamber, use the 2x M12 threaded holes for jacking out or the 2x
pry slots on the center plate, Figure 3
Figure 1
Figure 2
Figure 3
Jacking screw hole
Prying slot

4Maintenance and service
Liquiflo FTS Transfer Pump User Manual
Series No. FTS400
20
Removing center plate from gear chamber
1. 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.
2. Carefully pull the center plate vertically along the two drive shafts to remove it from the gear chamber, Figure 2. If
the center plate sticks to the gear chamber, find the pry slot on the center plate, Figure 3, and insert a pry bar or
other tool to gently loosen the center plate from the gear chamber.
3. Remove constant vent ball and spring from center plate, Figure 4.
Figure 3
Figure 1
Figure 4
Figure 2