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28-9266-70 AA
Sightglass cover assembly instruction
Assembly mount procedure – 6 mm and 1/2 inch air traps
1
Disconnect the air trap and remove the bottom nuts
•
Remove the TC coupling (A) and evacuation hose from the
top valve.
•
Unscrew and disconnect the cable contacts (B) from the
level sensors.
•
Disconnect the air trap inlet and outlet from the system
valves.
•
Loosen and remove four bottom nuts (E) and washers from
the connecting rods that are fixed to the support (D).
Note:
The nut on the fifth connecting rod does not need to be
removed.
Note:
The washers from the two front connecting rods will not
be used when the cover is mounted.
•
Lift the air trap from the support (D) and move it to a
suitable place to mount the cover assembly.
2
Pull out the connecting rods
•
Remove the bottom nuts (C) from the two front connecting
rods.
•
Pull the connecting rods (F) out of the air trap. Remove the
washers from the rods.
Note:
Do not remove the dome nuts. Ensure that the dome nuts
still are securely fastened. If loose, the nuts should be
fastened and locked into place using Loctite™ 243.
3
Mount the top sightglass cover part
•
Place the top cover (G) on the air trap, with the opening
aligned with the sight glass.
•
Re-insert the front two connecting rods (F) through the top
holes in the cover.
•
Insert a plain washer and a lock washer on each of the
two front connecting rods underneath the air trap and
mount the nuts (C).
Note:
The lock washer should be closest to the nut.
•
Tighten the nuts using a torque of 3 Nm (±0.3 Nm). Verify
also that the other three nuts are tightened, using the
same torque value.
•
Return the air trap to the support (D), aligning the bottom
part of each connecting rod through the holes in the
support.
•
Connect the air trap inlet and outlet to the system valves.
A
B
E
D
C
F
F
G
