Yokogawa Pneumatic Retractables RF20H - Manual (Page 16)

IM 12B06K05-E-E
16
6.8 Installing the insertion rod
The descriptions refer to Fig. 17 and Fig. 18
in chap. 6.7 Removing the insertion rod!
How to assemble the insertion rod and the
drive unit:
1) Adjust slots in insertion rod “C” to piston “B”
and put together.
2) Insert pins “F”
3) Tighten screws “E”.
4) Grease inside wall of cylinder “D”.
5) Slide cylinder “D” over insertion rod “C”.
6) Adjust cylinder “D” to cylinder extension “A”.
7) Press until cylinder snaps into place.
8) Bring top housing cramp in position
and tighten screws.
9) Insert O rings at insertion rod
(Fig. 13: “A” and “B”).
6.9 Assembling the drive unit and
cleaning chamber
Ensure that
• all seals are installed and in good working
condition.
• insertion rod and drive unit are assembled
(chap. 6.8).
How to install the cleaning chamber:
1) Insert cleaning cartridge in cleaning chamber until
it snaps into place.
2) Insert drive unit with insertion rod.
3) Press both components tightly together.
4) Adjust drive unit until it snaps into place in the
cleaning chamber.
5) Adjust protection cage (chap. 4.4).
6) Bring lower housing cramp in position and tighten.
The holder can now be reinstalled in the
process. Also observe the instructions in
chapter 4:
• 4.3 Installing the holder
• 4.4 Adjusting the protection cage
• 4.5 Installing the cleaning
• 4.6 Installing the pneumatic
• 4.7 Installing the sensor
6.10 Replacing the drive unit
System is under pressure.
Process liquid will leak when holder
is disconnected from process in an
inappropriate way.
• Ensure that system is pressure-free before
replacing the drive unit.
• Drain and clean tubing or tanks.
• Ensure that there is no potentially
explosive atmosphere
Emitted compressed air
can cause material damage or personal injury.
• Switch off compressed air supply before
removing the pneumatic tubes.
The new drive unit can now be installed:
Prior to installation,
• remove cleaning chamber with process
connection (chap. 6.5).
• remove insertion rod (chap. 6.8).
• Clean and dispose off cylinder, cylinder
extension, pivot, housing cramps, if required.
How to install the new drive unit:
1) Remove screws from top housing cramp.
2) Remove cylinder “D” from cylinder extension “A”
(Fig. 17).
3) Install insertion rod (chap. 6.8).
4) Assemble the drive unit and cleaning chamber
(chap. 6.9).
6.11 Servicing plan
Carry out maintenance works in the
recommended intervals!
weekly
Checking wetted sealings (chap. 6.2)
Check process connection.
Check cleaning pipes.
Check pneumatic connections.
quarterly
Check and tighten screws of top and lower
housing cramps.
once a year
Replace wetted sealings (chap. 6.6).
Remove and inspect insertion rod (chap. 6.7).
every 3 years
Replace drive unit (chap. 6.10).
6.12 Disposal
Holder
Ensure that the holder is free from
hazardous and toxic substances. Depending
on your material the individual components
must be disposed off separately.
Observe regulations and rules for waste
disposal applicable in the operator’s country
and at the site of use.
Packaging
The packaging is made of card board and
can be disposed off with the waste paper.
CAUTION!
DANGER!
WARNING!
CAUTION!
DANGER!
WARNING!
CAUTION!
DANGER!
WARNING!
CAUTION!
DANGER!
WARNING! CAUTION!
DANGER!
WARNING!