Alfa Laval Contherm 6X11, Instruction Manual

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7 Operations
Table 7-4. Operating the Hydraulic Rotor Lifting System
Step Action
1
Turn off the Contherms
™
Rotor Drive System.
2 Clean the system with CIP, then flush the Contherm
™
with cold water and then drain before disassembling unit.
3
Remove the product piping from the lower product head of the Contherm
™
.
4 Start the hydraulic Rotor Lift Pump (P/N 7402078).
5 Lift up the handle on the Stack Valve Assembly (P/N 7401305) to eliminate any slack that may have occurred
between the lift beam and the bearing cap, and to ensure that the lift is working properly. When done, release the
handle and let it move back into its neutral position.
6 While keeping your body, hands and feet clear of the area directly below the Contherm
™
, remove the lower head
clamp (P/N 7403038-01).
7
Push the handle on the Stack Valve Assembly down and lower the rotor, using one hand to guide it down. When the
top of the rotor is near the bottom of the cylinder, hold the rotor so that the top does not fall toward the cylinder wall.
This will help prevent any damage from occurring to the seals and cylinder wall.
8 Guide the lower head assembly out of the cylinder with your free hand.
9 Install the blade funnel before raising the rotor into the Contherm. Refer to section 8.5.2 Inspecting the Scraping
Blades and figure 8-8 for a detailed description on use of the blade funnel.
10 Before raising the rotor, ensure that the rotor is centered and verify that all rotor blades are properly secured to their
supporting rotor pins. Also ensure that the upper seal is properly locked in place on the small pin.
11
Guide the lower head assembly into the cylinder with your free hand.
12
Pull the handle on the Stack Valve Assembly up and raise the rotor, using one hand to guide it up keeping blades
from binding. Pause raising the rotor once the tips of the last set of blades have entered the cylinder and remove the
blade funnel making sure to keep hands and fingers clear of the cylinder and head as they close.
13 While keeping your hands and feet clear of the area directly below the Contherm
™
, reattach the lower head
clamp (P/N 7403038-01).
Note: Do not over tighten the product head clamp. Minimal force applied with a hand wrench is sufficient for
tightening the nut. A torque of 10 foot-pounds (13.5 Newton-Meters) is recommended.
14
Turn off the hydraulic Rotor Lift Pump when not in use to extend the life of the pump (P/N 7402078).
15 Verify that the Contherm
™
has been reassembled correctly.
16 The Contherm
™
is now ready to go back into service.
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