Rice Lake SURVIVOR Paramounts HE Medium Capacity - Manual (Page 15)

Paramount Installation Guide 11
complete, wirebrush all welds and degrease. Paint with primer and top coat to
match surrounding steelwork.
The stainless steel slide plates on the underside of the top plates must
NOT be painted.
4.2.2 Aligning Top Plates
Do not place the vessel on the top plates while the Paramounts are in
the “shipping” position (top plates raised up by the jacking nut). The
lift off protection screw may be bent if weight is placed on the mount
before the vessel is securely attached to the top plates.
The vessel must be attached to the top plates when they are in the normal weigh-
ing position and resting on the load pins. If the vessel is attached to the top plates
in the shipping position, there is a possibility that, when lowered, the lift off pro-
tection screws will bind in the mounts and destroy weighing accuracy.
With an open end wrench, hold the jam nut of the lift off protection screw to pre-
vent it from rotating. Place a second wrench on the jack nut and loosen it until the
top plate contacts the loading pin. Be certain that the loading pin is pressed into
the load hole of the load cell. For fixed pin mounts, loading pin must be pressed
into the hole on the underside of the top plate. The jack nut has a lip on the under-
side that centers the lift off protection screw in its hole on the washer plate. Check
that the lip is engaged in the hole. Carefully loosen the jack nut further until the
top plate is horizontal and is resting solidly on the load pin. Be certain to leave the
jack nut in contact with the washer plate during this operation to aid in alignment.
4.2.3 Attaching the Vessel to Top Plates
With the mounts in the position described at the end of Section 4.2.2 above, the
vessel may be placed on the top plates of the mounts. Clamp the top plates to the
vessel and check that they are level within the specifications of Section 3.4. Shim
between the vessel and top plates if necessary. Keep plates level when shimming.
In applications with four or more load cells, check that the vessel is loading on all
support points and is not resting on two diagonally opposite points only. Check
this by attempting to lift the vessel off the top plates by prying with a crowbar. If
there is play when this is done, shims may be needed between the vessel and one
or more top plates.
The top plates may now be welded or bolted to the vessel. If welding, observe the
same precautions discussed in Section 4.2.1. When complete, the mounts can be
painted in the same manner as the base plates.
4.2.4 Locking Mounts in Weighing Position
When the installation is complete, screw the jack nut on each mount all the way
up on its lift off-protection screw and lock it against the top jam nut (see Figure
12). The jack nut must not contact the washer plate during weighing or accuracy
will be destroyed. Check that there is no binding between the lift off protection
screws in their holes in the washer plates.
CAUTION
CAUTION