Calder Brothers Corporation Page 10
Model: 690G Gravity Feed Paver 690F Operations Manual Rev 1.1
FREEDOM SCREED EXTENSION SETTING
6. (See Figure 6.1) With the extensions completely closed, adjust the screed depth handle
until the extension screed plate rear curved edge just touches a straight
edge held against the main screed bottom at the outside edge, oriented
in forward to rearward direction.
7. (See Figure 7.1) Next, with the extensions completely closed, run a string across the entire
trailing edge, (rear), width of the screed extension bottoms. Release turnbuckle jam nut and
adjust turnbuckles until there is a slight gap (approximately 1/16” or less) between the
screed extension bottoms and the string.
8. (See Figure 7.1) Lock all ratchet jacks and turnbuckle lock nuts to prevent movement
during paving operations.
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