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7

 

Check motor.  

 It may be equipped 
with an automatic 

resetting thermal  
protector and may restart unexpectedly  
(see specifications chart). Protector tripping 
is an indication of motor overloading as a 
result of operating the pump at too high a 
pressure (over 125 PSI), too high of viscosity, 
too high of specific gravity, excessively high 
or low voltage, inadequate wiring, incorrect 
motor connections, too small a motor (sized 
incorrectly, not enough HP), or a defective 
motor or pump.
Do not handle pump with wet hands  
or when standing in water. Failure to  
follow the General Safety Information  
and all warnings could result in fatal  
electrical shock!

Assembly  

(If pump and motor are  
pre-assembled, skip assembly.)
If a pump head needs to be coupled to 
an electric motor, then the following 
procedure should be followed. (See 
Figures 3 and 4.) First, install one of 
the two coupling halves and key on 
the pump shaft and tighten the set 
screw. The shaft end should be even or 
slightly recessed from the coupling half 
(approximately 1/8”). The other  
coupling half must be installed on the 
motor shaft. To do this, it should be 
placed on the shaft with the key,  
with the shaft recessed approximately 
1/2”. The set screw is not yet tight-

ened. It is necessary to establish a gap 
between the coupling halves of  
approximately .02” to .05” (See Figure 
4).  A thin piece of cardboard or a piece 
of paper folded up will work fine to set 
this gap. The pump is placed into posi-
tion on the motor and the position of 
the motor coupling half is established 
using the piece of thin cardboard or 
other gauge material. The motor  
coupling half is tightened. The pump  
is removed, the coupling spider (rubber 
piece) is placed into position, and the 
pump bolted to the motor using the 
four bolts. 

SHURflo Operating Instructions, Performance,  

Specifications and Parts Manual

Viton Models GMSV2A, GMSV4A, GMSV6C, GMSV2A3T, GMSV2A33T, 

GMSV4A5T, GMSV4A53T, GMSV6C7T and GMSV6C73T  

Teflon

®

 Models GMST2A, GMST4A, GMST6C, GMST2A3T, GMST2A33T, 

GMST4A5T, GMST4A53T, GMST6C7T and GMST6C73T 

Form L-4089 (2/17) 

Figure 3 - Pump Motor Assembly

Figure 4 - Assembly Coupler

Coupler Gap

Key

Key

Spider

Spider

Pump Shaft

Key

Coupling Halves

Coupling Half

Cutaway of Pump End

Motor Shaft

Motor

Summary of Contents for SHURflo Teflon GMST2A

Page 1: ...32 to 280 F Large female NPT ports allow use with viscous fluids Pumps are close coupled with electric motors to handle up to 500 SSU at 1725 RPM or run at reduced speeds to handle a wide range of pum...

Page 2: ...5TC C 182 184TC 1 1 3 2 1 2 3 3 4 4 1 5 11 2 6 2 7 3 Blank no code single phase ODP motor 3 3 phase ODP motor T 1 phase TEFC 3T 3 phase TEFC 1st 2nd 3rd 4th 5th 6th 7th Mounting Material Seal Gear Mot...

Page 3: ...e pump and possibly a larger motor should be selected Manufacturer reserves the right to change performance without notification Performance with Water 3 Form L 4089 2 17 Performance with Oil Viton Te...

Page 4: ...6 SS Ryton PPS 316 SS Graphoil Viton 8 9 GMSV4A 56C 1725 5 8 Keyed 5 8 Keyed CI 1 2 316 SS Ryton PPS 316 SS Graphoil Viton 17 5 GMSV6C 182 184TC 1725 20mm Keyed 11 8 Keyed CI 1 316 SS Ryton PPS 316 SS...

Page 5: ...ed CI 1 316 SS Ryton 316 SS Graphoil Viton 88 1 Teflon Models GMST2A3T 3 4 TEFC 56C 115 230 11 2 5 6 1 1725 1 2 Keyed 5 8 Keyed CI 3 8 316 SS Ryton 316 SS Graphoil Teflon 36 9 GMST2A33T 3 4 TEFC 56C 2...

Page 6: ...6 67 1 8 2 85 3 50 4 91 6 32 21 73 6 59 3 00 6 50 2 63 4 88 3 00 0 34 GMST2A GMST2A3T GMST2A33T GMSV4A GMSV4A5T GMSV4A53T 1 2 4 50 4 90 9 35 7 46 1 8 2 75 3 50 5 00 6 32 25 12 6 59 3 50 6 50 2 63 4 8...

Page 7: ...proximately 1 8 The other coupling half must be installed on the motor shaft To do this it should be placed on the shaft with the key with the shaft recessed approximately 1 2 The set screw is not yet...

Page 8: ...harge outlet Support pump and piping during assembly and after installation Failure to do so may cause piping to break pump to fail motor bearing failures etc all of which can result in property damag...

Page 9: ...s for operating tempera tures above 120 F will result in severe pump and or motor damage NOTE When pumping fluids of high viscosity 500 ssu the required torque and HP can be reduced by adding a gasket...

Page 10: ...is regulated into the seal cavity by means of a needle valve and flow meter Use of an anti siphon check valve is required Operation Continued It is essential that an anti siphon check valve be install...

Page 11: ...nstalled elec tric motors are capable of operating for years with minimal maintenance Periodically clean dirt accumulations from open type motors especially in and around vent openings preferably by v...

Page 12: ...wo styles one has a rubber boot and the other has an o ring Identify which type you have See Figure 10 For the Teflon seal see the following note and Figure 12 c Refer to assembling components on driv...

Page 13: ...4089 2 17 Figure 13 Repair Parts Illustration Please provide following information Model number Serial number if any Part description and number as shown in parts list To order parts contact a SHURfl...

Page 14: ...22362 22362 4 23 Coupling 21885 21886 22184 21885 21886 22184 1 24 Cap Screw 13309 13309 13309 13309 13309 13309 4 25 Anti Rotation Pin NA NA NA 22537 22537 22537 1 26 Motor 3 4 HP 1 PH TEFC 21594S O...

Page 15: ...mark proper orientation of cover and pump body 4 Replace gaskets 3 per instructions listed in table 5 Replace cover 2 and cover screws 1 according to orientation marked in step 3 6 Tighten cover scre...

Page 16: ...1200 Gear Reducer 145TC to 145TC 1 5 ratio 5 625 2 875 1167 29 AGR184TC600 Gear Reducer 184TC to 184TC 3 0 ratio 7 43 2 875 583 56 AGR184TC900 Gear Reducer 184TC to 184TC 2 0 ratio 7 43 2 875 875 56 A...

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