Operation Manual / Power2 850-M / 4.1 Low-pressure stage
4 Disassembly and assembly / 4.13 Installing the wall insert
© Copyright 2019 ABB. All rights reserved.
HZTL4062_EN
Revision A
March 2019
4.13
Installing the wall insert
CAUTION
Clearance between compressor wheel and wall insert
Serious damage to machinery or property can result from rubbing or jam-
ming of the compressor wheel at the wall insert.
u
Check that the compressor wheel does not rub against the wall insert
during disassembly/assembly by rotating the rotor.
Fig. 26: Installing wall insert 1
Part number
Thread and tightening torque
77016
M5x35
5 Nm
Table 12: Tightening torque (77016)
1. Coat the threads of screws (77016) with Loctite® 243 and secure diffuser (79000) with
screws (77016). Observe the tightening torque.
2. Fit new O-rings (77040 / 79020 / 79021).
3. Secure lifting gear to swivel lifting eye (90231).
4. Fit two plates (90031) and secure with plate (90032), screw (90656) and nut (90432).
5. Lift the wall insert and remove the support angle (90480).
6. Carefully insert the wall insert.
7. Fix the wall insert in place with two opposing nuts (72004) and washers (72003).
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