1. The gas ballast knob must be pulled out from gas ballast spindle by a
t headed
screwdriver or any similar tool can be used to lever the ng free. To help posion
the tool underneath the knob it may be necessary to parally rotate the knob in-
between notches.
2. Once the GB knob has been removed the internal valve can be extracted using an
21 mm socket wrench.
3. The adapter can now be installed using a 21 mm socket wrench. Make sure that a
clean O-ring is assembled onto the adapter before you start installaon.
6.13 Extra silencer removal
The pump is furnished by an addional removable silencer in the form of a drilled M12
plug that can be removed by allen key of size 10. Removal is advised when the exhaust
of the pump is connected to addional exhaust pipeline to gain up to 2 m
3
/h in pumping
speed from atmosphere.
6.14 Mounng kit use
A mounng frame is available as an accessory (part number A90590000). This can be
used to mount the pump to a cart or bolt it to the oor. The mounng frame has two
holes and two holes for M8 bolts. These are aligned with the corresponding mounng
posions on Edwards leak detector carts (center slot) or turbo carts.
Installaon ins
trucons:
05/2021 - ©Edwards Limited
Page 37A90301880_C
A90301880_C - Oper
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