
Fristam Pumps
18
I
NDICATINg
TORqUE
WRENCh
T
OOLS
R
EqUIRED
FOR
S
PECIFIC
P
UMP
M
ODEL
:
FKL 5
FKL 75, 150 & 50
FKL 400
Gearbox cover bolts
13 mm wrench
17 mm wrench
17 mm wrench
Bearing cap screws
5 mm Allen wrench
6 mm Allen wrench
8 mm Allen wrench
S
PANNER
WRENCh
REqUIRED
FOR
ThE
bEARINg
LOCK
NUT
FOR
SPECIFIC
PUMP
MODEL
:
FKL 5
FKL 75
FKL 150
FKL 50
FKL 400
M35
M50
M55
M75
M85
g
EARbOx
D
ISASSEMbLy
To start the gearbox disassembly, complete the Pump Head Disassembly on pages 11-1.
a) Remove the oil drain plug with the 3/8” Allen wrench and drain the oil.
b) Use the appropriate wrench to remove the gearbox cover bolts. Then remove the gearbox cover and
gearbox cover gasket.
c) Loosen and remove the bearing cap screws with the appropriate Allen wrench.
d) Remove the bearing caps.
e) Remove the bearing cap o-rings from both bearing caps and the rear oil seal from the drive shaft
bearing cap.
f) Install the rotors onto the pump shafts. Secure the rotors from turning by placing the wooden dowel
between them as shown in Figure 1.
g) Straighten the bent tab on the bearing lock nut washer on both the drive and idle pump shafts with
the screwdriver.
h) Loosen the bearing lock nut from both shafts using the spanner wrench.
i) Remove the bearing lock nuts, bearing lock nut washers and rotors from both pump shafts.
j) Place the gearbox on an arbor press with the spline ends of the shafts facing down as shown in Figure
. Press on the shafts, one at a time, to remove them from the gearbox. Make sure to support the
shafts so that they do not fall and get damaged. Also, be sure to remove the rear bearing inner race,
rear gear spacer and the gear before pressing the other shaft. Press the inner bearing races off both
pump shafts. Note: do not press on the outer bearing cage. Set the pump shafts aside.
k) Remove the gears from the gearbox. The outer races of both front and rear bearings can now be
tapped out of the gearbox with a hammer and brass rod. Note that the front outer races may have
stayed on the shafts.
You are now ready to reassemble the gearbox.
g
EARbOx
A
SSEMbLy
Note: The front and rear bearing
assemblies are matched sets. Do not
separate pieces.
Also
,
for ease of installation
,
install
the idle shaft first. If you are not
sure about shaft location, the drive
shaft will always be located in the
same bore on the gearbox. To locate
the correct bore, stand facing the
pump end of the gearbox with the
gearbox cover on your left side. The
drive shaft will be in the top bore
!
IL-0536
Figure 1
Содержание FKL-150
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