GORMAN-RUPP AMT 337 Series Specifications Information And Repair Parts Manual

Diaphragm pumps

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Specifications Information and Repair Parts Manual
Please read and save this Repair Parts Manual. Read this manual and the General Operating Instructions carefully before attempting to assemble, install, operate
or maintain the product described. Protect yourself and others by observing all safety information. The Safety Instructions are contained in the General Operating
Instructions. Failure to comply with the safety instructions accompanying this product could result in personal injury and/or property damage! Retain instructions
for future reference. AMT reserves the right to discontinue any model or change specifications at any time without incurring any obligation.
©2024 AMT Pump Company, A Subsidiary of The Gorman-Rupp Company, All Rights Reserved.
Periodic maintenance and inspection is required on all pumps to insure proper operation. Unit must be clear of debris and sediment. Inspect for leaks and loose bolts. Failure to do so
voids warranty.
Diaphragm Pumps
.
DESCRIPTION
These diaphragm pumps are high capacity, self-priming (to 25 ft. lift), portable units shipped completely assembled (except for handle). The pumps are used
for operation with fluids mixed with abrasive solids such as sand, silt, mud, sludge and waste. Not for use with pumping cement or mortar. Handles liquids from
40º to 180º F (4º to 82 º C). Pump is capable of handling solids up to 1-5/8" diameter. For use with water and other non-flammable fluids compatible with pump
component materials.
Model
Driver Type
338Z-96
Hatz 1B30 Diesel
338G-96
Honda GX120
338L-96
LCT 280CC-Discontinued
338E-96
1.5 HP 115VAC @ 60 HZ
1.5 HP, 3PH 208-
338T-96
230/460VAC @ 60HZ
337G-96
Honda GX120
337H-96
Honda GX160
337L-96
LCT 280CC-Discontinued
337Z-96
Hatz 1B30 Diesel
337E-96
1.5 HP 115 VAC @ 60 HZ
1.5 HP, 3PH 208-
337T-96
230/460VAC @ 60HZ
NOTE: Driver is subject to change without notice, see labels and manual with driver for operation, specifications, maintenance and warranty.
UNPACKING
After unpacking the unit, inspect carefully for any damage that may have
occurred during transit. Check for loose, missing or damaged parts.
Specific Safety Information for Gasoline Engine Driven
Pumps
1.
Carefully read the instruction manuals supplied by the engine
manufacturer before attempting to assemble, disassemble or operate
the engine or any other part. The "Warning" and "Caution" statements
in this manual signal potentially hazardous conditions to the operator or
equipment. Know when these conditions can exist. Take necessary steps
to protect personnel, as well as equipment.
Gasoline is a highly combustible fuel. Use it with care! The improper
use, handling and/or storage of gasoline can be dangerous. Help prevent
accidents by following these safety rules:
Use gasoline only as a fuel, never as a cleaning fluid.
Always use an approved container to hold or store gasoline. Never
store gasoline in familiar containers such as milk gallons or soda pop
bottles
Never store gasoline near a heater or an open flame.
When storing or using gasoline, make sure container is out of the
reach of children.
Never add gasoline to a running or hot engine. Spilled gasoline on
a hot engine may cause a fire or an explosion. Fill gasoline tank
3370-250-00
Material
Diaphragm
Aluminum
Thermoplastice/TPE
Aluminum
Thermoplastice/TPE
Aluminum
Thermoplastice/TPE
Aluminum
Thermoplastice/TPE
Aluminum
Thermoplastice/TPE
Aluminum
Thermoplastice/TPE
Aluminum
Thermoplastice/TPE
Aluminum
Thermoplastice/TPE
Aluminum
Thermoplastice/TPE
Aluminum
Thermoplastice/TPE
Aluminum
Thermoplastice/TPE
1
Check Valve
Gear Box
Neoprene
Neoprene
Neoprene
Neoprene
Neoprene
Neoprene
Neoprene
Neoprene
Neoprene
Neoprene
Neoprene
outdoors and wipe up any spills.
Have a fire extinguisher nearby. Be sure extinguisher is in operating
condition – check the pressure gauge or indicator. Be familiar with
its proper use. Consult the local fire department for the correct
type of extinguisher for your application. Extinguishers rated ABC
by the National Fire Protection Association are appropriate for all
applications.
On permanent installations, be sure all fuel supplies have a positive
shutoff valve. Fuel lines must be of steel piping, adequately secured
and free from leaks. Do not use copper piping on flexible lines as
copper becomes hardened and brittle and will break. Use black
pipe on natural gas or gaseous fuels, but not on gasoline or diesel
fuels. Piping at the engine should be a suitable flexible line that is
compatible with the fluid.
Positively no smoking!
2.
Check engine oil, fuel levels and gear box oil levels before initial startup
each day. Stay away from moving parts due to the danger of becoming
caught in moving parts. Avoid loose jackets, shirts, sleeves and ties. Make
sure all nuts and bolts are secure. Keep power shields and guards in
place. If adjustment MUST be made while the unit is running, use extreme
caution around hot manifolds, moving parts, etc.
3.
Do not work with this equipment when mentally or physically fatigued.
337 Series and 338 Series
Plunger Bearing
Oil Bath
Needle
Oil Bath
Needle
Oil Bath
Needle
Oil Bath
Needle
Oil Bath
Needle
Oil Bath
Needle
Oil Bath
Needle
Oil Bath
Needle
Oil Bath
Needle
Oil Bath
Needle
Oil Bath
Needle
NPT
2"
2"
2"
2"
2"
3"
3"
3"
3"
3"
3"
9/2024

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Summary of Contents for GORMAN-RUPP AMT 337 Series

  • Page 1 AMT reserves the right to discontinue any model or change specifications at any time without incurring any obligation. ©2024 AMT Pump Company, A Subsidiary of The Gorman-Rupp Company, All Rights Reserved. Periodic maintenance and inspection is required on all pumps to insure proper operation. Unit must be clear of debris and sediment. Inspect for leaks and loose bolts. Failure to do so voids warranty.
  • Page 2: Diaphragm Pumps

    337 Series and 338 Series Specifications Information and Repair Parts Manual Diaphragm Pumps Be careful not to touch the exterior of the engine, especially the muffler Protect electrical cord from sharp objects, hot surfaces, oil and chemicals. and the area around it. It is hot enough to be painful or cause injury. Avoid kinking the cord.
  • Page 3: Operation

    337 Series and 338 Series Specifications Information and Repair Parts Manual Diaphragm Pumps In some applications, it may be preferable to have suction/discharge ports rotated 90 degrees to be in line with driver. If so, proceed as follows: Do not exceed 60 strokes per minute with the diaphragm pump. •...
  • Page 4: Maintenance

    337 Series and 338 Series Specifications Information and Repair Parts Manual Diaphragm Pumps MAINTENANCE Remove twelve screws (Ref. No. G3) holding gear box halves (Ref. Nos. G1 & G2) together. Carefully separate gearbox halves; input (Ref. No. G2) and output (Ref. Make certain that unit is disconnected from power source before No.
  • Page 5 337 Series and 338 Series Specifications Information and Repair Parts Manual Diaphragm Pumps Symptom Possible Cause(s) Corrective Action Pump will not prime or retain 1. Air leak in suction line 1. Repair or replace prime after operating 2. Defective flapper valves 2.
  • Page 6 337 Series and 338 Series Specifications Information and Repair Parts Manual Diaphragm Pumps For Repair Parts contact dealer where pump was purchased. Please provide following information: -Model Number -Serial Number (if any) Part description and number as shown in parts list Assembled Pump - Figure A 3370-250-00 9/2024...
  • Page 7 337 Series and 338 Series Specifications Information and Repair Parts Manual Repair Parts List - Assembled Pump (Reference Figure A) Part Number for Models 3” Engine 3” Motor 2” Engine 2” Motor Description Driven Pump Driven Pump Driven Pump Driven Pump Gearbox/Gearbox Feet Assembly Ref.
  • Page 8 337 Series and 338 Series Specifications Information and Repair Parts Manual Diaphragm Pumps For Repair Parts contact dealer where pump was purchased. Please provide following information: -Model Number -Serial Number (if any) Part description and number as shown in parts list Gearbox - Figure G 3370-250-00 9/2024...
  • Page 9 337 Series and 338 Series Specifications Information and Repair Parts Manual Repair Parts List - Gearbox (Reference Figure G) 3” Pumps 2” Pump Description Part Number Part Number Gearbox Output Half 3370-090-01 3370-090-01 Gearbox Input Half 3370-091-01 3370-091-01 1/4-20x1 Hex Flange Screw 1730-002-00 1730-002-00 1/4 NPT Plug (drain)
  • Page 10 337 Series and 338 Series Specifications Information and Repair Parts Manual Diaphragm Pumps For Repair Parts contact dealer where pump was purchased. Please provide following information: -Model Number -Serial Number (if any) Part description and number as shown in parts list Gearbox Feet - Figure L 3370-250-00 9/2024...
  • Page 11 337 Series and 338 Series Specifications Information and Repair Parts Manual Repair Parts List - Gearbox Feet (Reference Figure L) 3” Pumps 2” Pump Description Part Number Part Number Steel leg - Left 3370-101-00 3370-101-00 Steel leg - Right 3370-100-00 3370-100-00 Guard Bracket 3370-102-00...
  • Page 12 337 Series and 338 Series Specifications Information and Repair Parts Manual Diaphragm Pumps For Repair Parts contact dealer where pump was purchased. Please provide following information: -Model Number -Serial Number (if any) Part description and number as shown in parts list Plunger Assembly - Figure P 3370-250-00 9/2024...
  • Page 13 337 Series and 338 Series Specifications Information and Repair Parts Manual Repair Parts List - Plunger Assembly (Reference Figure P) 3” Pumps 2” Pump Description Part Number Part Number Plunger 2134-000-02 3360-090-02 Retaining Ring 3350-190-00 3360-191-00 Plunger Bearing 2138-000-90 3360-190-90 (includes Ref.
  • Page 14 337 Series and 338 Series Specifications Information and Repair Parts Manual Diaphragm Pumps For Repair Parts contact dealer where pump was purchased. Please provide following information: -Model Number -Serial Number (if any) Part description and number as shown in parts list Well Assembly - Figure W 3370-250-00 9/2024...
  • Page 15 337 Series and 338 Series Specifications Information and Repair Parts Manual Repair Parts List - Well Assembly (Reference Figure W) 3” Pumps 2” Pump Description Part Number Part Number Well 2120-001-00 3360-001-00 Suction Plate 2123-000-00 3360-050-00 1/2-13x1-1/4 Hex Flange Screw Grade-5 1766-010-00 3/8-16x1-1/4 Hex Flange Screw Grade-5 1757-007-00...
  • Page 16 Specifications Information and Repair Parts Manual NOTES:...
  • Page 17 Specifications Information and Repair Parts Manual NOTES:...
  • Page 18: General Information

    (within one year from date of purchase). A 20% restocking AMT Pump Company, A Gorman-Rupp Company, 400 Spring Street, Royersford, PA 19468 USA Ph: 610.948.3800 Fax: 610.948.5300 www.amtpump.com Revised 5.29.2024...
  • Page 19: 12 Month Limited Warranty

    AMT, the product will be not returnable for credit. returned to AMT, shipping charges prepaid by the Buyer. AMT Pump Company, A Gorman-Rupp Company, 400 Spring Street, Royersford, PA 19468 USA Ph: 610.948.3800 Fax: 610.948.5300 www.amtpump.com Revised 5.29.2024...
  • Page 20 www.amtpump.com...

This manual is also suitable for:

Amt 338 seriesAmt 338z-96Amt 338g-96Amt 338l-96Amt 338e-96Amt 338t-96 ... Show all

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