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This Guide is made available for the express use of owners and users of the Dive Lab XLDS systems.
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Document XLDS Guide – Section Four B
Revised August 20, 2019
52
SECTION FOUR B: RDC REPAIR / MAINTENANCE / OVERHAUL
Allen wrench. Rotate out (counter clockwise) to
reduce the set pressure, or “in,” clockwise to
increase the set pressure. Check the set pressure
several times by slowly increasing the supply
pressure until the relief lifts then vent off the
pressure thru the pnemo valve. Then, while
holding the position of the housing with the
5/16” Allen wrench, tighten the cap (9) with the
force of three fingers on the wrench, or use a
torque wrench and tighten to 40-50 inch lbs.
Note the final lift pressure.
2b.
Stainless Hylock® Relief: to adjust the relief. Use
two ¾” open end wrenches, one on the
locknut (1), and one on the cap (2), then loosen
the locknut (2). Adjust the cap (1) by rotating out
(counter clockwise) to reduce the set pressure, or
“in,” clockwise to increase the set pressure.
Check the set pressure several times by slowly
increasing the supply pressure until the relief lifts
then vent off the pressure thru the pnemo valve.
Then, while holding the position of the housing
with one ¾” wrench, snug the locknut (2) with the
other ¾” wrench with the force of three fingers
on the wrench, or use a torque wrench and
tighten to 40-50 inch lbs. Note the final lift
pressure.
End of Section Four B
