Calder Brothers Corporation Page 8
Model: 690G Gravity Feed Paver 690F Operations Manual Rev 1.1
SCREED HEATING SYSTEM
The new Freedom Screed ® has one burner in each extension and two main screed burners. The
proper way to light the burner system is the following procedure.
1. Make sure all shutoff valves are in the off position and lighting wand is off.
2. Fully extend the extensions.
3. Turn on gas at tank, and set gauge pressure between at 4-6 p.s.i.
4. Light the lighting wand
5. Turn on the gas to the extensions. One at a time.
6. Quickly point the lighting wand at flap style door towards the bottom inboard zone of the
screed extensions to ignite the burner.
7. The extension burners will have changed from a hissing noise to a roaring noise confirming
ignition.
8. Repeat for other side. After extension burners are lit, turn on gas to the main screed.
9. Quickly light each of the burners on the main screed.
Only use burners for 10 - 15 minutes at any given time. Damage to screed plate will occur.
WARNING: NEVER USE SYSTEM WITHOUT DIRECT CONSTANT SUPERVISION
PERSONAL INJURY OR DEATH MAY RESULT.
WARNING: EXCESS GAS ACCUMULATING BEFORE LIGHTING BURNERS MAY
CAUSE AN EXPLOSION RESULTING IN PERSONAL INJURY OR DEATH.
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