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8 | EN

Copyright © Liberty Pumps, Inc. 2021 All rights reserved.

7353000J

 GR-Series Guide Rail System

The GR20 quick-disconnect assembly guide rail system provided 

with the system is designed to allow easy installation and removal 

of the pump. When installed correctly, it will seal and provide a 

means to lift the pump without disconnecting any of the 

discharge piping. Ensure installation is done as shown.

Opera tion,  Ma intena nce, 

Troubleshooting

Refer to supplied pump, alarm, and control panel manuals. For 

further questions, contact customer service at 1-800-543-2550 or 

[email protected].

Wa rra nty

 Liberty Pumps Wholesale Products Limited 

Warranty

Liberty Pumps, Inc. warrants that Liberty Pumps wholesale 

products are free from all factory defects in material and 

workmanship for a period of three (3) years from the date of 

purchase (excluding* batteries and “Commercial Series” models). 

The date of purchase shall be determined by a dated sales receipt 

noting the model and serial number of the pump. The dated sales 

receipt must accompany the returned pump if the date of return is 

more than three years from the date of manufacture noted on the 

pump nameplate.
The manufacturer's sole obligation under this Warranty shall be 

limited to the repair or replacement of any parts found by the 

manufacturer to be defective, provided the part or assembly is 

returned freight prepaid to the manufacturer or its authorized 

service center, and provided that none of the following 

warranty-voiding characteristics are evident:
The manufacturer shall not be liable under this Warranty if the 

product has not been properly installed, operated, or maintained 

per manufacturer instructions; if it has been disassembled, 

modified, abused, or tampered with; if the electrical cord has been 

cut, damaged, or spliced; if the pump discharge has been reduced 

in size; if the pump has been used in water temperatures above 

the advertised rating; if the pump has been used in water 

containing sand, lime, cement, gravel, or other abrasives; if the 

product has been used to pump chemicals, grease, or 

hydrocarbons; if a non-submersible motor has been subjected to 

moisture; or if the label bearing the model and serial number has 

been removed.
Liberty Pumps, Inc. shall not be liable for any loss, damage, or 

expenses resulting from installation or use of its products, or for 

indirect, incidental, and consequential damages, including costs of 

removal, reinstallation or transportation.

There is no other express warranty. All implied warranties, 

including those of merchantability and fitness for a particular 

purpose, are limited to three years from the date of purchase. 

This Warranty contains the exclusive remedy of the purchaser, 

and, where permitted, liability for consequential or incidental 

damages under any and all warranties are excluded.

*Liberty Pumps, Inc. warrants StormCell

®

 batteries for 1 year from 

date of purchase, and warrants that pumps of its Commercial 

Series are free from all factory defects in material and 

workmanship for a period of 18 months from the date of 

installation or 24 months from the date of manufacture, 

whichever occurs first, and provided that such products are used 

in compliance with their intended applications as set forth in the 

technical specifications and manuals.

Table 1. Factory Set Float Switch Levels

System

OFF

ON

ALARM

D3648

13” [33

 

cm]

25” [64

 

cm]

31” [79

 

cm]

D3660

13” [33

 

cm]

28” [71

 

cm]

34” [86

 

cm]

D3672

13” [33

 

cm]

31” [79

 

cm]

37” [94

 

cm]

D3684

13” [33

 

cm]

34” [86

 

cm]

40” [102

 

cm]

D3696

13” [33

 

cm]

37” [94

 

cm]

43” [109

 

cm]

D36120

13” [33

 

cm]

43” [109

 

cm]

49” [124

 

cm]

Guide Rail Base

Grommet Location

Operating Position

Disconnected Position

Rubber 

sealing 

grommet

Summary of Contents for D3648 Series

Page 1: ...r Record information from pump nameplate System Model s Keep this manual handy for future reference For replacement manual visit LibertyPumps com or contact Liberty Pumps at 1 800 543 2550 Retain date...

Page 2: ...uct in applications where human contact with the pumped fluid is common such as swimming pools fountains marine areas etc Protect the power and control cords from the environment Unprotected power and...

Page 3: ...flammable and or explosive atmosphere as serious injury or death could result This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive h...

Page 4: ...roject s specifications before installation Physically and visually inspected basin pumps valves equipment and piping materials before installation Notify the carrier immediately if there is any damag...

Page 5: ...1 2 in size Backfill Placement and Compaction Do not exert heavy pressure or run heavy equipment on the backfill material as this could cause the tank to collapse Compaction of backfill materials mus...

Page 6: ...oil depth of excavation and safety considerations Basin anti flotation flange Compacted sub base and or concrete slab as per engineer s specification FINISH GRADE 12 minimum backfill compacted to a mi...

Page 7: ...irements If the system is to be vented through the inlet to an existing building vent stack there must be no traps between the system inlet and the nearest building vent stack connection option 1 If t...

Page 8: ...abused or tampered with if the electrical cord has been cut damaged or spliced if the pump discharge has been reduced in size if the pump has been used in water temperatures above the advertised ratin...

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