2. ALIGN EXTENSION SCREED PLATES FLUSH WITH MAIN SCREED PLATES

TM-5-3895-373-20 Bituminous Distributor Body M918 Model D-63 Manual
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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. GO TO NEXT PAGE 15-146

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