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QUEENSLAND URBAN UTILITIES
QUU CONTRACT NO: C1112-022
LUGGAGE POINT STP/LUGGAGE POINT
OPERATION & MAINTENANCE MANUAL
Chp4Maintenance.doc
DRAFT: A 23-Jul-13
Page 13 of 36
To mount a new perforated screen panel and seal plate, reverse the procedure and do the
following.
New bolts are required.
The nuts are welded to the back of the perforated screen
panels.
1.
Clean and degrease thoroughly the mating surfaces of new bolts and nuts before assembling
any parts.
2.
Replace the perforated screen panel plate.
3.
Replace the side seal plate.
4.
Use Loctite 262 and primer N7669 on the bolts before screwing them in place. Allow the Loctite
262 to cure 20 to 30 minutes for temperatures above 21ºC. For temperatures below 21ºC,
allow more time, up to 3 to 6 hours as temperatures approach freezing.
5.
Install new securing bolts on the links of the screen chain. Take care not to overtighten the bolt.
Set the tightening torque at the correct value for the bolt size. See the bolt/torque chart in
Chapter 1.
6.
Remove any securing device from the perforated screen panel plate.
7.
Replace the side inspection hatch covers.
4.3.2 Replacing Chain Links
To replace chain links, you will work through the side inspection hatch and you will need to fix the
chain rollers in place so that you can remove a chain link without damaging the chain or the Aqua-
Screen
®
. Refer to the screen panel assembly drawing in chapter 5, Parts Manual, for an overall
view of the parts to be removed and replaced. Use the following procedure to replace chain links:
1.
Position the chain link to be replaced at the center of the side inspection hatch.
2.
Line up the chain link roller below the link you will be replacing with securing hole “A” in the
frame as shown in figure 4-6.
CAUTION: Switch off and lock out/tag out the electrical switches of the two motors.
3.
Remove the two side inspection hatch covers. If necessary, readjust the chain link you wish to
replace to make sure it is centered in the opening of the side inspection hatch and that the
chain roller is lined up with the securing hole. Refer to figure 4-6.
CAUTION: Do NOT drop any component, hardware, or tool into the Aqua-Screen®.
This will damage the Aqua-Screen®.
Luggage Point STP ST18 Pre Treatment (Aqua-Screen (Andritz) Operation and Maintenance Manual) General
Q-Pulse Id: TMS579
Active: 13/12/2013
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