ABB TPL73-B12 - Inspection and Assessment of Valve Block

Operation Manual / TPL73-B.. - 85-B11/ -B12
8 Disassembly and assembly / 8.7 Inspection and assessment of valve
block
© Copyright 2018 . All rights reserved. HZTL2480_EN Revision D July 2018
8.7 Inspection and assessment of valve block
If provided
1 Valve flap
2 O-ring (42234)
3 Valve seat
On the removed valve block (42230):
u Check for free movement of valve flap (1).
u Check valve seat (3) using finger.
u If necessary, replace O-ring seal (2).
NOTICE
If scratches are found on the valve seat or the valve flap jams, the valve
block should be replaced.
If in doubt, contact an ABB Turbocharging Service Station.
Page 109 / 151