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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 14 of 36
Figure 4-6. Securing Holes for Chain Link Replacement
4.
Secure the perforated screen panel plate with a suitable restraint (such as steel wire) to
prevent it from falling into the Aqua-Screen® during the next steps.
5.
Remove the plastic caps on the ends of the roller.
6.
Insert a steel pin through hole “A” and the chain roller directly below the roller of the chain link
you wish to replace. Run the pin through the roller and frame on the opposite side of the Aqua-
Screen
®
. The pin must be 35 mm in diameter and a sufficient length to protrude at least 30 cm
on EACH side of the Aqua-Screen
®
. This pin is not a special tool and is not supplied by
ANDRITZ.
7.
Insert another pin of the same dimensions through either securing hole “B” or “C” to anchor the
other end of the chain link you with to replace.
8.
Turn the threaded rod enough to release the tension from the chain so it drops slightly from its
normal position.
9.
Unscrew the four securing bolts located on the links of the chain. See bolt/torque chart in
chapter 1.
10.
Remove the side seal plates.
11.
Remove the perforated screen panel plate attached to the link you wish to replace.
12.
Remove the retaining rings from the hollow pin on the chain link.
13.
Remove the hollow pin.
14.
Remove the link you wish to replace.
Luggage Point STP ST18 Pre Treatment (Aqua-Screen (Andritz) Operation and Maintenance Manual) General
Q-Pulse Id: TMS579
Active: 13/12/2013
Page 57 of 316