Viking Pump TSM288: SL Series Lobe Pumps - Manual (Page 21)

fIGURE 60
3.01 4.01 4.07
fIGURE 61
5.17
fIGURE 62
fIGURE 63
fIGURE 59
4.07
SECTION TSM 288 ISSUE A PAGE 21 OF 36
• Install the casing (3.01) onto the bearing housing (4.01) and
use the bolts (4.07) to secure the casing (3.01)
NOTE: without the gearbox cover spacers are required to
ensure the casing is fully clamped
• The front clearance is set by machining the clearance
spacer (5.17)
• Using a depth micrometer check the front clearance (Distance
from the front of the rotor to the front of the casing) and
adjust the width of the front clearance spacer as necessary
to set the front clearance see section 6.1 for pump head
clearances
NOTE: When assembling the pump with a new front clearance
spacer the rotor will be proud of the casing.
When the front clearance spacer has been machined to
the correct width make sure that the spacer kept with the
respective shaft.
4.2.7 fINal assEMblY
• When the front clearance spacers have been set install the
5mm (0.19”) pins (5.19) one per shaft.
The pin serves two main purposes
1) They secure the front clearance spacer
2) It provides anti-rotation for the seal sleeve and the seals
NOTE: When installing the pins use a locking compound like
Loctite 648 or similar
• Install the shaft sleeve O-ring (5.21) into the shaft sleeve
(5.18) and then install the assembly onto the shaft
4.2.6 sETTING fRONT ClEaRaNCE
slG
• Remove the rotor retainers (2.02), rotors (2.01) and install
the dowels (4.07) into the bearing housing (4.01)