User's Manual

MTU Instruction
for Lancaster Model 175 Gas Meters
Step 1 – Remove the clear index cover
from the meter by removing the two
screws that hold it. The clear index cover
and index cover screws will be reused.
Clean and inspect these items and set
them aside until needed. Replace if
damaged.
Step 2 – Remove the index by removing
the two screws that hold it to the meter.
Set the index aside until later. The
screws that held the index to the meter
can be discarded.
Step 3 – Remove the drive foot from the
meter drive shaft by unthreading it
counterclockwise. The drive foot will not
be reused and can be discarded. Then,
thread the magnet wheel clockwise onto
the shaft. Tighten the magnet wheel until
snug to the end of the threads on the
drive shaft.
CAUTION!
Be careful not to cross-thread
the magnet wheel when
installing it on the meter drive
shaft. Cross-threading can
cause misalignment of the
magnet wheel which in turn
can cause binding or erratic
performance.
Step 4 – Place the MTU bracket
assembly into position on the meter. Use
an index cover screw to temporarily hold
the MTU bracket assembly in position.
Route the sensor wire around the right-
hand index-mounting post then back and
under the finger hook so that it does not
interfere with the magnet wheel or the
index gears.
Step 5 – Reattach the index to the meter
using the screws and washers provided.
Note: The washers provided are a
precision thickness designed to properly
position the index. Use no substitutes.
The washers are to be placed between
the back of the index and the mounting
posts. The screws provided with the
MTU replace the original index mounting
screws. Insure that the drive foot on the
index will be driven by the pin on the
magnet wheel as it rotates, then hand
tighten the index mounting screws.
Gently move the 2-foot hand to check for
some free play to insure that the register
is not binding up.
Step 6 – Next, create an exit notch for the
sensor wire by using a nibbler or plastic
cutting plier to add a notch approximately
5/32” in diameter to the bottom left edge
of the clear index cover. Do not interfere
with the drain hole already molded into
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