Rice Lake SURVIVOR Paramounts HE Medium Capacity - Manual (Page 17)

Paramount Installation Guide 13
5.0 Maintenance
5.1 General
Periodically check that the stainless steel slide plates are smooth, un-scratched,
and free of paint and grease. If the faces of the plates do become damaged, they
may be turned over to get a better surface.
Ensure the O-ring, gasket, and V-ring (side stop and free sliding mounts only) are
in place on the loading pins.
Ensure that the teflon coated slide plate on the top of each sliding pin is in good
condition.
Ample clearance is provided against debris buildup around the lift off protection
screw. Periodically, both the area around the screw and the space beneath the load
cell should be cleared of debris buildup to ensure that load shunting to ground
does not occur.
5.2 Load Cell Replacement
The following procedure describes changing a load cell. The procedure used to
raise the top plates can also be used when changing a load pin, O-ring, load pin
seal, or slide plate.
1. The jack nut may be used to raise the top plate and attached vessel off
the load cell only if the vessel is empty. If emptying the vessel is
impractical, it can be raised with external jacks.
Remove the washer plate screws before using an external jack
2. To raise the vessel using the jack nut, first hold the jam nut at the top of the lift
off protection screw to prevent the screw from turning. Grasp the jack nut
with a second wrench and screw the nut down until it contacts the washer
plate. Check that the lip on the underside of the nut aligns with the hole in the
washer plate. If not, loosening the washer plate retaining screws will usually
allow enough freedom for alignment. Continue screwing the jack nut down
until the spacer on the screw contacts the underside of the washer plate.
3. Remove the load cell mounting screws.
4. Slide the load cell clear. With the fixed pin mount, the rear end of the load cell
must be lifted to disengage the loading pin.
5. To reinstall the load cell, place a dab of grease on the bottom tip of the load
pin and insert it into the load cell. Reassemble the load cell to the mount so the
longitudinal axis of the load cell is centered on the base plate. Torque the load
cell mounting screws in sequence to the values given in the table on page 9.
First torque the mounting screw nearest the load pin, then the screw at the
CAUTION