Installation Of Measuring Drum And Displacer; Tools; Installation Of Measuring Drum - Honeywell 854 ATG Series Instruction Manual

3.2 Installation of measuring drum and displacer

3.2.1 Tools

It is recommended to use an 847 PET (Portable Enraf Terminal) to load the different parameters.
A tool set for commissioning and maintenance is available from Honeywell Enraf (see figure 3.1).
Item Description
1 Allen key 2 mm
2 Allen key 3 mm
3 Allen key 4 mm
4 Allen key 5 mm
5 Allen key 8 mm
6 Drum bearing puller
7 test magnet
8 Screwdriver for Allen key screws M4
9 Screwdriver for Allen key screws M6
10 Pipe wrench 27 mm
11 Tommy bar
3.2.2

Installation of measuring drum

Remove the drum compartment cover (rear cover).
•
Check whether the drum shaft is properly positioned in the
•
drum.
Attach the smallest of the four test weights (or another small
•
weight) to the measuring wire, remove the rubber band
securing the measuring wire and feed the wire and test weight
through the neck of the gauge (see figure 3.2).
Insert the measuring drum onto its bearings.
•
Check the axial free-play of the drum as follows:
•
Push the drum towards the magnet cap in such a way that the
•
drum shaft meets the magnet cap. Release the drum.
Bring the drum in a slight vibration. The drum and drum
•
shaft should now move towards you with a axial movement of
minimum 1 mm and maximum 2.5 mm.
•
Note the engraved drum circumference value on a piece of paper for later use. There are several
numbers engraved on the measuring drum. The number you are looking for has a value of
approximately 338 mm (for example: 338.028)
Page 12
Figure 3.1 Tool set for 854 ATG (part no. A1854062)
.
Commissioning
Figure 3.2 Installing drum