F-20569-2
Rev. 1-10-19 3-17-08
Instructions How To Assemble The Float And Arm To
The MC Valve And How To Adjust The Valve
The MC Valve is already attached to the
drinker. The
fl
oat and arm assembly is with the
hardware kit. They are packaged separately to
prevent undue wear to the valve caused by the
arm bouncing up and down during shipping.
The
fl
oat and arm are attached to the valve by
a thumb screw. The
fl
oat can be positioned
either closer or further away from the valve (see
photo below left for the two
fl
oat positions).
Further away increases the shut off force of
the valve. However depending upon which
drinker is being used, the closer position may
be required to maintain proper clearance for
the
fl
oat to the side of the drinker. A clearance
of at least 1/2” should be maintained to ensure
smooth operation of the valve.
When attaching the
fl
oat arm to the valve, be
sure to attach the arm to the correct side of the
valve. The grooves on the valve and
fl
oat arm
must match. Please note that the valve has
coarse grooves on one side and
fi
ne grooves
on the other. The
fi
ne grooved side is used with
the
fl
oat arm (see below for details).
To adjust the water level in the drinker, loosen
the thumb screws and position the
fl
oat and arm
so that the valve is turned off when the water is
at the desired level (see photo at left). It may
take a couple of adjustments to get the correct
level (1-1½” below the top of the trough). To
speed the adjustment process, remove the drain
plug and drain a little water out so that the valve
turns on. Put the drain plug back and let water
fi
ll until the valve shuts off. If the level is not
correct, repeat the process until the correct level
is obtained and then replace the
fl
oat cover.
Your drinker is now ready for use.
Adjust
Adjust
Fine
Coarse
Parts for MC Valve
MC Valve Only
3888245S
MC Valve & Float Ass’y
3888244S
MC Float Ass’y
3888251S
Rubber Seals for MC
Valve 54300988
(Pkg of 5)
