FLYGT DX Series User manual
1
Doc. :DX
First edition date :12/98
Revision date :
Disassembly and Assembly Instructions
DX SERIES
2
Doc. :DX
First edition date :12/98
Revision date :
DX pump disassembly P. 3
DX pump assembly P. 12
Head components - Exploded view P. 27
DX 35-5, 50-7 spare - Exploded view P. 28
DX 50-11, 50-15 spare - Exploded view P. 29
Electrical connection P. 30
Electrical connection with external panel P. 31
NOTES:
- The pump should be serviced by qualified personnel only, after having been
disconnected from the power mains.
- The DX pump components listed in this manual are accompanied by
identification numbers that refer to the drawings on pages 28 - 29.
- These numbers identify spare parts as listed in our specific catalogue.
- The assembly and disassembly procedure for the DX S versions is the
same.
- The mechanical seal and O-rings should be replace each time you
assemble the pump.
- In the event of damage to the head we recommend that you replace it with
the pre-assembled one (contact our Service Center).
Contents
3
Doc. :DX
First edition date :12/98
Revision date :
Disassembly
• Place the pump on a clean and
well-lit workbench.
• Loosen the screw in the center of
the head.
4
Doc. :DX
First edition date :12/98
Revision date :
Disassembly
• Unscrew the three socket head
screws from the head.
• Remove the head as shown in the
picture, using a plasti hammer and
chisel. Be careful not to damage
the head.
5
Doc. :DX
First edition date :12/98
Revision date :
Disassembly
• Loosen the terminal box screws
and disconnect all the wires, then
remove the capacitor. (18 if any).
• With a socket wrench, loosen the
screws that hold the feet (12).
6
Doc. :DX
First edition date :12/98
Revision date :
Disassembly
• Remove the suction flange (5).
• Loosen the impeller fastening hex
screw. To secure the impeller,
insert a screwdriver* through the
pumps’ delivery port.
*Not shown in the picture.
7
Doc. :DX
First edition date :12/98
Revision date :
Disassembly
• Remove the impeller (2); if
necessary, use a pair of pliers. On
the DX 10-15-20 models, retrieve the
impeller lock tab. Remove the V-ring
(24). Loosen the oil chamber
fastening screw (23) and drain the
oil.
• Loosen the stop ring screws (15).
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Doc. :DX
First edition date :12/98
Revision date :
Disassembly
• Remove the stop ring and place
the pump in a pan to collect the oil.
(if necessary, prize it out with a
screwdriver).
• Tap the pump body (1) gently with
a rubber hammer to separate from
the shell with wound stator (3).
9
Doc. :DX
First edition date :12/98
Revision date :
Disassembly
• Remove the shell with stator after
the oil residues have crained.
Remove the fixed part of the
mechanical seal (9) from the pump
body.
• Extract the oil conveyor (10).
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Doc. :DX
First edition date :12/98
Revision date :
Disassembly
• Use a screwdriver to prize out the
rotating part of the mechanical
seal. Remove the washer
underneath.
• Tap the shaft gently (4) on the
head side, through the hole in the
bearing seat.
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