SECTION 8
MAINTENANCE ADJUSTMENTS
BRAKE
When the machine does not bend properly, it is sometimes necessary to
CROWNING
readjust the crown on the beams. Use the following procedure:
ADJUSTMENTS
1.
Relieve all tension on the upper beam tensioning nuts and on the upper
beam tensioning screw (see Figure 9).
2.
Lower the upper beam onto the bed. Loosen lower toggle pin adjusting
nut until there is 1/4” of space between bottom of the toggle anchor and
the lower toggle pin adjusting nut (see Figure 10).
3.
Adjust the upper beam and lower beam tensioning screws finger tight;
and then tighten each with a wrench approximately one full turn (five
flats) (see Figure 9).
4.
Adjust the upper beam tensioning nuts finger tight, and then tighten each
with a wrench approximately one full turn (five flats) (see Figure 9).
5.
When looking from the rear of the brake, the upper beam and the bed
should be in contact at the center and showing a crack of light at each
end (see Figure 11). If less light shows at one end, loosen the rear floor
bolt at that end and shim under the leg until the light shows evenly at
both ends.
6.
Tighten the lower toggle pin adjusting nut against the bottom of the
toggle anchor (see Figure 11).
UPPER BEAM
TENSIONING NUTS
LOWER BEAM
TENSIONING NUT
UPPER BEAM
TENSIONING SCREW
LOWER BEAM
TENSIONING SCREW
Figure 9. Upper Beam and Bed Tensioning Components.
Page 18
Summary of Contents for U616
Page 29: ...Figure 14 Exploded View of Replacement Parts Page 23 ...
Page 33: ...NOTES ...
