EP100 Master Instruction
19
_____________________________________________________
D00002-C-04
10.4 Replacement of mechanical
and pneumatic units
First remove the electronics unit
40
(see preceding
page).
10.4.1 Amplifier replacement
Release the pneumatic amplifier
43
from the base
plate and replace O-rings between the amplifier and
base plate
1)
.
Use 3 O-rings for a single-acting amplifier and 5 O-
rings for a double-acting amplifier. If replacing a
single-acting amplifier with a double acting, remove
sealing screw
44
before installation.
The air capacity throttle screws have to be released
until the screw head is even with the amplifier surface
( = no throttling).
10.4.2 Preamplifier replacement
Unscrew the preamplifier
45
from the base plate by
removing screws
46
and
47
.
Replace 4 O-rings between preamplifier
45
and base
plate
1)
and install new preamplifier.
10.4.3 Replacement of IP module
Remove the IP module
48
from base plate and
replace with new IP module. Replace the O-ring
between IP module and base plate and install new IP
module.
10.4.4 Replacement of Feedback unit
First remove feedback lever or rotary adapter from
feedback shaft. Now remove retaining ring from
feedback shaft
9
(see page 6). Remove screws and
pull out complete unit
49
consisting of feedback shaft,
gears and position sensor.
Insert new feedback unit
49
and secure with screws.
Remember to replace the retaining ring at feedback
shaft.
1) The base plate consists of a manifold and air ducts. O-rings are
required to guarantee sealing of the mounted elements.
