Tuthill FILL-RITE SD1200 User Manual

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MADE IN

USA

H-SERIES FUEL TRANSFER PUMPS

FR1200, FR2400, FR4200, FR4400, FR600, SD1200, SD600

Installation and Operation Manual

Table of Contents

Questions and Answers:

K
kelleymarkAug 13, 2025
How to troubleshoot a Tuthill FILL-RITE SD1200 Water Pump that won't prime?
- M
  Mitchell MorganAug 14, 2025
  If your Tuthill Water Pump won’t prime, several issues could be the cause. First, check the suction line for any leaks or restrictions. Also, inspect the bypass valve to ensure it moves freely and is free of debris. Examine the vanes and rotor slots for any nicks, burrs, or wear. Inspect the rotor and vanes for excessive wear or damage, and replace them if necessary. If you are using an automatic nozzle, remove it to prime the pump. Finally, check the filter and bypass valve for debris and remove the nozzle to test the flow with the pump on.
L
Linda SmithAug 17, 2025
What to do if Tuthill FILL-RITE SD1200 Water Pump has low capacity?
- S
  Scott CaldwellAug 17, 2025
  If your Tuthill Water Pump has low capacity, start by removing and cleaning the screen to eliminate excessive dirt. Check the suction line for leaks or restrictions. Inspect the bypass valve to ensure it moves freely and is free of debris. Check the pump outlet hose, nozzle, and filter for any blockages. Inspect the vanes and rotor slots for wear, and replace them if necessary. Check the rotor and vanes for excessive wear or damage, and replace if needed. Replace any damaged hoses or nozzles, preferably with UL-rated ones. Replace the filter if it's plugged. Finally, ensure the fluid level is adequate and fill the tank if it's low.
S
Susan NguyenAug 21, 2025
Why does the Tuthill FILL-RITE SD1200 Water Pump motor stall and blow fuses?
- T
  Tracy SnyderAug 21, 2025
  If the motor of your Tuthill Water Pump stalls, the fuse blows, or the thermal protector trips repeatedly, start by inspecting the bypass valve to ensure it moves freely and is free of debris. Check the incoming supply line voltage to rule out low voltage. Examine the rotor and vanes for excessive wear or damage. Finally, clean any debris from the pump cavity.
D
Derek MendozaAug 25, 2025
How to fix fluid leakage in Tuthill FILL-RITE SD1200 Water Pump?
- J
  Juan CordovaAug 26, 2025
  If you notice fluid leakage from your Tuthill Water Pump, check and replace all O-ring gaskets on the rotor cover, inlet flange, and bypass cap. Replace the shaft seal. Refer to the wetted parts list to the fluid manufacturer to ensure fluid compatibility. Also, ensure all fasteners are tightened.
T
Travis WilkinsAug 29, 2025
Why is my Tuthill FILL-RITE SD1200 Water Pump motor overheating?
- N
  newmantimothyAug 29, 2025
  If the motor of your Tuthill Water Pump overheats, it might be due to transferring high viscosity fluids, which should only be done for short periods (less than 30 minutes). Remove the inlet and clean the screen. Remove and clean any restricted suction pipes. For motor failure, contact Tuthill Customer Service at 1-800-634-2695 (M-F, 8am-6pm EST/EDT).
M
Maria MatthewsSep 1, 2025
What causes a Tuthill FILL-RITE SD1200 Water Pump to run slowly?
- R
  Russell HarringtonSep 2, 2025
  If your Tuthill Water Pump runs slowly, check the incoming supply line voltage to ensure it is correct. Inspect the vanes and rotor slots for nicks, burrs, and wear. Check for loose connections in the wiring. For a motor problem, contact Tuthill Customer Service at 1-800-634-2695 (M-F, 8am-6pm EST/EDT).
D
Danielle WuSep 5, 2025
Why is the motor of my Tuthill Water Pump inoperable?
- D
  Daniel SmithSep 5, 2025
  If the motor of your Tuthill Water Pump is inoperable, check the incoming supply line power. Use a multimeter to isolate any issues with the supply line power. For motor failure, contact Tuthill Customer Service at 1-800-634-2695 (M-F, 8am-6pm EST/EDT). Clean and check the pump rotor, repairing as needed with KIT120RG if there is a locked rotor. Verify correct wire size with local, state, and national electric codes if there is incorrect or loose wiring.
M
melanie24Sep 8, 2025
What to do if Tuthill FILL-RITE SD1200 Water Pump hums but does not operate?
- J
  Joe WuSep 9, 2025
  If your Tuthill Water Pump hums but will not operate, contact Tuthill Customer Service at 1-800-634-2695 (M-F, 8am-6pm EST/EDT) because it may be a motor failure. Also, remove any debris and replace the key if the rotor key is broken.

Tuthill FILL-RITE SD1200 Specifications

General

Model	SD1200
Category	Water Pump
Thermal Overload Protection	Yes
Manufacturer	Tuthill
Flow Rate	12 GPM
Material	Cast Iron
Power Source	12V DC

Summary

Safety and Installation Procedures

Safety Information

General safety guidelines, warnings, and precautions.

Installation Guide

Guidance for mounting the pump on various tank types.

Installation Procedure

Step-by-step instructions for installing the pump.

Wiring Instructions

DC Wiring Instructions

Guidelines for connecting 12V DC and 24V DC pumps.

DC Wiring Procedures

Steps for DC pump wiring and electrical bonding.

Mobile Tank DC Wiring Options

AC Wiring Instructions

Guidelines for connecting 115V AC pumps.

AC Wiring Procedure

Operation, Security, and Troubleshooting

Operation Instructions

Troubleshooting Guide

Basic diagnostics for common pump issues.

Specifications, Models, and Performance

Specifications and Models

H-Series Model Information

Performance Curves

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