Fristam Pumps FKL-150, Instruction And Maintenance Manual, Page: 11 / 50

FKL Series Pump
!
! WARNINg
Seal assembly tool or a press (part number 1018000011)
T
OOLS
R
EqUIRED FOR
S
PECIFIC
P
UMP
M
ODEL
(
WRENCh SIzE IN MM
):
FKL 5 FKL 50 FKL 75 FKL 150 FKL 50 FKL 400
cover nuts 13 mm 19 mm 19 mm 19 mm 19 mm 19 mm
rotor bolt 19 mm 19 mm 19 mm 4 mm 3 mm 3 mm
housing bolts 10 mm 13 mm 19 mm 19 mm 19 mm 19 mm
Note: the reference numbers listed in the text (#) refer to the assembly drawing on pages 30-31, seal
assembly drawings on pages 41-44 and the parts list on page 3-36 and 45-50.
P
UMP
h
EAD
D
ISASSEMbLy
Drain all product from the pump head prior to disassembly. The pump head may be isolated with inlet
and outlet valves. Disconnect the suction and discharge piping from the pump. Disconnect the seal
flush supply and return lines to your pump if the pump is equipped with a double mechanical or double
o-ring product seal.
R
EMOVE ThE
C
OVER
a) Loosen and remove the cover nuts and cover nut washers with the appropriate wrench.
b) Remove the cover by turning the two forcing screws clockwise.
c) Remove the cover o-ring.
For Jacketed Cover - start with instruction A and then remove the jacketed cover, jacketed cover o-
ring and then continue with instructions B and C.
R
EMOVE ThE
R
OTORS
a) To loosen the first rotor, place the wooden dowel between the rotors as shown in Figure 10.
b) Turn the first rotor bolt counter-clockwise with the appropriate wrench.
c) Remove the rotor bolt and rotor cap with o-rings from the first rotor.
d) Repeat instructions a - c for the second rotor.
e) The rotors and rotor o-rings can now be removed from the pump housing by
pulling straight out as shown in Figure 11. Handle the rotors with care to avoid
damage.
Inspect the rotors and pump housing for signs of wear. If wear is present, see the trouble-shooting
guide (page 5) for possible solutions.
R
EMOVE ThE PUMP hOUSINg
a) Loosen the hex head housing bolts with the appropriate wrench.
b) Now carefully pull the pump housing away from the gearbox as shown in Figure 1. You may need to
alternately tap on the sides of the pump housing
near the inlet and outlet ports with the soft face
hammer until the housing pins separate from the
gearbox.
You are now ready to remove the seal components
from the pump housing.
M
EChANICAL
S
EAL
C
ARTRIDgE
R
EMOVAL
a) Place the pump housing face down as shown in
Figure 13.
b) Loosen the seal housing screws with the 4 mm
Allen wrench.
IL-0521
Figure 10