Fristam Pumps FKL 15, Original Instructions Manual, Page: 21 / 40

21
CAUTION
► Align the key to the cylindrical pins of the mechanical seal
chamber.
6. Insert the O-ring (412.67) into the mechanical seal chamber.
7. Insert the spacer ring (504.60) into the mechanical seal
chamber.
CAUTION
► Align the spacer ring to the cylindrical pins of the mechani-
cal seal chamber.
8. Secure the parts with the snap ring (93-1.60) .
Final assembly of pump casing:
9. Screw the preassembled mechanical seal chamber with the
socket screws (901.64) to the pump casing (101) .
For tightening torques, see table below:
10. Mount the pump casing on the shafts and slide it onto the
gearbox.
CAUTION
The pump casing does not lie flat on the gearbox. Material
damage from warpage of pump casing.
► Screw the pump casing to the gearbox. The fixture depends
on the pump size:
– Pump size 25-580: Socket screws in pump casing
For tightening torques, see table below:
11. Subsequently mount the shaft seal of the rotor; for details,
see Chapter 10.9.2, "Mounting of the Rotors," page 24 .
Case D
Preassembly on shaft:
Fig. 30 Rotating seal ring with O-ring
1. Mount the O-ring (412.63) on the shaft.
2. Slide the rotating seal ring (472.60) onto the shaft.
CAUTION
► Mount the rotating seal ring so that it fits onto the shaft face.
Preassembly of mechanical seal chamber:
Fig. 31 Assembly of mechanical seal chamber
3. Equip the mechanical seal chamber (47-2.60) with O-rings
(412.65) and (412.60) .
Note: O-ring (412.60) is only installed in FKL 205-580.
4. Slide the key (477.60) onto the stationary seal ring (475.60)
and insert the seal ring and key into the mechanical seal
chamber.
CAUTION
►
Align the key and the stationary seal ring to the cylindrical
pins
(562.60) of the mechanical seal chamber.
5. Insert the key (477.61) into the mechanical seal chamber.
CAUTION
► Align the key to the cylindrical pins of the mechanical seal
chamber.
6. Insert the O-ring (412.67) into the mechanical seal chamber.
7. Insert the stationary seal ring (475.61) into the mechanical
seal chemaber.
Pump Size Mechanical Seal Chamber
Tightening Torque [Nm]
25 - 250 3.4
400 13.5
580 19
Table 7 Tigh
tening torques for mechanical seal chamber fasteners
Pump Size Pump casing fastener
Tightening Torque [Nm]
25 - 50 13.5
75 -580 61
Table 8 Tigh
tening torques for pump casing fasteners
412.63
472.60
101
412.60
412.65
701.60
901.64
475.60
477.60
412.67
477.61
475.61
47-2.60
93-1.60
412.70