36
OPERATION AND MAINTENANCE MANUAL
QTS SERIES
Twin Screw Positive Displacement Pump
QTS-M
08
QTS-M
08
MAI
N
T
E
N
AN
C
E
9.
Using thickness gages, check the clearances between the rotors turning them slowly and
introducing one gage at every point where the rotors are meshed. A practical way to do it is
sliding the gage between the rotors in the front side and slowly rotate them so the gage moves
along the rotors by its rotation. If the clearances do not comply (according to the pump model)
is probable that the synchronization is not correct.
GAGE
GAGE
10.
Once you have tightened and checked the rotor
clearances continue closing the pump. Place the
dowel pins
(25)
inside the holes on the back cover.
WARNING! Dowel pins must always be placed
before running the pump. Not doing so will cause
severe damage to the pump.
11.
Insert the casing
(4)
carefully, it should be
mounted and centered on the back cover
(5)
with
the dowel pins. Push back to slide through the studs
(14).
The plug
(53)
covers a threaded bore that can
be used to lift the part in larger models.
12.
Insert gasket
(27)
into the groove on the front cover (1) and close the pump; use the pocket
in the front cover as a guide for assembling it with the casing.
13.
Secure the front cover with the washers
(22)
and nuts
(21);
tighten using a wrench or a six points
female socket. Remember to use the corresponding torque values according to the pump model.
This concludes the rotor assembly.
If you need any advice to assembly and/or disassembly, please contact your distributor or
Q-Pumps.
5
14
25
4
53
54
27
1
22
21
