Honeywell RABO G65 Instruction Manual page 16

®
ELSTER RABO Rotary Gas Meter
iv) Unscrew the lock nut from the magnet holder
(THREADS ARE LEFT HAND) [Figure 17].
LOCK
NUT
CHANGE
GEAR
MAGNET
HOLDER
Figure 22. Magnet holder, change gear, and lock nut
v) Unscrew the change gear from the magnet
holder (THREADS ARE LEFT HAND) [Figure 22].
vi) Assemble the change gear to the ID magnet holder
(THREADS ARE LEFT HAND).
(1) For 3.5M meters
(a) Apply Loctite ®
surfaces of the change gear and the magnet holder
[Figure 23]. Allow to dry for 30 seconds.
APPLY LOCTITE ®
PRIMER
Figure 23. Magnet holder and change gear adhesive
application for 3.5M meter.
(b) Apply Loctite ® 406, Loctite
Cyanoacrylate adhesive to the threads and
mating surface of the magnet holder [Figure
23]. Do not get the adhesive on the small tip
of the magnet holder.
(c) Quickly screw the change gear to the magnet
holder (THREADS ARE LEFT HAND) and tighten until
gear is snugly seated against magnet holder. Let
dry completely
(d) Do not reinstall the locknut for a 3.5M meter.
(2) For 5.5M, 9M and 14M meters
(a) Screw the change gear to the magnet
holder (THREADS ARE LEFT HAND) and tighten
until gear is snugly seated against magnet
holder.
(b) Reinstall the lock nut (THREADS ARE LEFT HAND)
removed in a previous step. Tighten until snug.
vii) Install the ID magnet holder onto the end of the meter.
viii) Install the ID gearing and index assembly on meter.
(1) Orient the ID gearing and index assembly so the
mounting screws line up with the posts in the
index base plate.
(2) Ensure the shaft on the magnet holder aligns
770 primer to the threads and mating
APPLY LOCTITE
PRIMER. APPLY
CA
® 495, or equivalent
16 Honeywell
SUPPORT HOLE
(ON BACK SIDE)
INDEX
RETAINING
SCREW
Figure 24. ID retaining screws
(3) Tighten the three screws until snug. Do not overtighten.
(a) Each screw should have a 2mm thick retaining
washer to space the ID gearing and index
assembly away from the base plate [Figure 25].
The spacers are installed at the factory. Verify
they have not fallen off.
RETAINING
®
WASHER
Figure 25. Retaining washers
with the support hole on the index frame [Figure 24].
ix) Check for binds
(1) Using compressed air blown into the meter inlet port,
confirm the index and ID output shaft rotate freely.
x) Snap the ID index masking plate onto three posts of
the index.
xi) Install the ID index cover.
(1) Lightly lubricate the blue or purple O-ring on the index
base plate with silicone O-ring grease.
(a) Do not use petroleum based lubricants on this O-ring.
(2) Place the ID index cover onto the index base plate
while aligning the holes on the side of the index cover
with the holes in the index base plate.
(3) Install the brass index cover mounting screws which
were removed in a previous step. Tighten the screws
just until the screw head contacts the cover, then
back the screw out until the seal wire holes align.
xii) Attach the support bracket to the accessory mount
holes in the meter case cover [Figure 19, 26].
NOTE: To avoid binds please pay particular attention
to the sequence given below.
(1) The ID can be attached to a meter installed for
horizontal or vertical flow. Use the appropriate
accessory mount holes.
INDEX
RETAINING
SCREW
INDEX
RETAINING
SCREW