21
1.
Gradually tighten the TLA screws (62) in a
circular pattern until hand tight and the
shafts can be rotated. Ensure the TLA is
pushed fully back on the shaft and that
the timing gear is pulled forward during
tightening to ensure correct placement.
2.
Check that the face of the timing gear
does not sit proud of the rear face of the
gearcase by checking the dimension from
the rear face of the timing gear to the rear
face of the gearcase is as per the table
below. If not, loosen the TLA slightly and
repeat Step 21.
3.
Timing adjustment is now required.
Model
Dimension X (mm)
32/33/34
1.5
42/43
4.0
52/53/54
6.0
62/63
9.5
72/73/74
6.0
x
3206-0061
22
Adjusting rotor timing
NOTE
If the rotor timing requires adjustment (and
assuming the pump has not yet been re-
built), it is important to establish the cause for
the rotors mistiming before proceeding.
23
Tighten one of the torque locking assemblies
(62) fully as per the below list to the torque
stated in Section 6
• Horizontally Ported: - Top Shaft
• Vertically Ported: - Right Shaft
(as looking from the front of the pump)
200002348-1-EN-GB
40
5 Maintenance
EN
Summary of Contents for DuraCirc Range
Page 4: ......
