TM 5-3895-373-20
15.20. ADJUST AND ALIGN MAIN AND EXTENSION SCREED PLATES - Continued.
C.
ALIGN - Continued.
2.
ALIGN EXTENSION SCREED PLATES FLUSH
WITH MAIN SCREED PLATES.
WARNING
Screed
operations
present
a
crushing hazard. Stay clear of
screed during screed operations.
Failure to do so may result in death
or serious injury.
NOTE
Cribbing is used under the screed
only as a safety precaution. Do not
lower the screed onto the cribbing.
Cribbing
may
have
to
be
repositioned
during
alignment
procedure to allow for placement of
straightedge
and
to
view
measurement points.
a.
Start paving machine engine and fully
retract extension screed per TM 5-3895-
373-10.
b.
Shut down paving machine and remove
key from ignition per TM 5-3895-373-10.
Position cribbing under screed.
c.
Place straightedge along bottom of main
screed plate (11) and across inside of
extension screed plate (21) at B-B and
across outside of extension screed plate
(22) at C-C.
NOTE
Ensure
extension
screed
height
adjustment knobs are not separated
during this procedure.
d.
Adjust extension screed height adjustment
knobs to align leading edges of extension
screed plates (21 and 22) from 0.125 to
0.19 in. (3,2 to 4,8 mm) higher than trailing
edge of main screed plate (11) at B-B and
C-C. It may be necessary to adjust
extension screed height adjustment knobs
to obtain 0.125 in. (3,2 mm) at both points
B-B and C-C. (Refer to TM 5-3895-373-
10.) If measurements cannot be obtained
at both B-B and C-C, repeat step 1.
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