SERIES LE260 - "CARD-LOK" RETAINER (EXTRACTING/LEVER-LOK) Calmark offers the Series LE260 Extracting/Lever-Lok ("Card-Lok") retainer for cold plate/heat-exchanger applications. This totally unique design provides the significant feature of Board Module Assembly extraction in addition to tool free lever action locking. The Series LE260 provides visual indication of accurate, repeatable locking to a preset clamping force. FEATURES n Safe and easy Board Module Assembly extraction with 4:1 mechanical advantage n Tool free actuation n Visual indication of locked or unlocked status n Preset and adjustable clamping force n Maintained wedge and body alignment for easy installation n Special lengths, finishes, or other design options available on request Series LE260 "Card-Lok" Retainer (extracting/lever-lok) Cold Plate Spring Washer Stack Square Flatwasher MATERIALS & FINISHES WEDGES, SHAFT AND LEVER Material: Aluminum Alloy 6061-T6, ASTM-B221 Finish: Wedge & Shaft: Black Anodize per Mil-A-8625 Type II, Class 2 Wedges: also have Dry Film Lube per Mil-L-46010 Type 1 Lever: Hard Black anodize per Mil-A8625 Type III, Class 2 Board Module Assembly ADJUSTMENT SCREW Material: Stainless Steel per ASTM-A582\QQ-S-763 Finish: Passivate per Mil-S-5002 Locking element per Mil-F-18240 Adjustment Screw Wedges HARDWARE Material: Front Washer: MPIF Standard 25 Rear Washer: ASTM-A240 Spring Washers: ASTM-A266 Finish: Passivate per Mil-S-5002 WEIGHT 1.17 g/cm (.105 oz/in) Lever Arm 40 www.calmark.com * 800-854-7086 Shaft may be riveted, screwed or bonded to Board Module Assembly Recommended Gap: Board Module Assembly thickness plus 7.62 (.300) SERIES LE260 - "CARD-LOK" RETAINER (EXTRACTING/LEVER-LOK) 6.35 (.250) Assembly Length Assembly Length + 16.5 (.65) when fully relaxed and unadjusted. Dimension will shorten by 5.3 (.21) when adjusted. 2.67 (.105) 6.86 (.270) max. Capable of expansion range of 6.86 (.270) to 8.26 (.325). Adjustment required to an exact dimension within this range. 2.38 (.094) Hex Socket Cap Per ANSI/ASME B18.3 3.31 (1.305) 4.95 (.195) Ref. M/2 .13 (.005) M = Assembly Length minus 48.26 (1.90) .13 (.005) 3.63 (1.43) Units: mm (in) Unless specified otherwise, .xx = .25, .x = .5 (.xxx = .010, .xx = .02) -1 Shown -2 Opposite 13.29 (.527) CLAMPING FORCE ADJUSTMENT PROCEDURE Lever-Lok furnished assembled with spring stack preloaded but not adjusted. 1. Fasten Lever-Lok to Board Module Assembly 2. Insert Board Module Assembly into slot in cold plate 3. Actuate lever to locked/closed position 4. Tighten screw on end of shaft until wedges initially contact wall of cold plate slot, or slight insertion extraction drag is felt 5. Additionally tighten locknut two full turns. DO NOT EXCEED TWO (2) TURNS. 6. Lever-Lok is now ready to use NOTE: Factory adjustment of clamping force available on request. See part number code. CLAMPING FORCE DATA Direct force of assembly is approximately 556N (125lbs), when adjusted per recommended procedure. Direct force of assembly is affected approximately as follows: 26.7N (6lbs) per each .025 (.001) variation of cold plate slot width, or 169N (38lbs) per each full turn of screw. Part Number Code Series LE260 Card-Lok Five Piece LE260 - 3.80 T0 -1 Suffix options Assembly length from 2.50 (63.5) to 12.99 (329.9) ____length.xx Preferred lengths are 71.12 (2.80), 96.52 (3.80) and 121.9 (4.80) Other lengths available upon request Mounting Options - 0-80 tapped holes __________________________ T0 or choose from Mounting Option Table ______________________see table Lever Direction __________________________________________________ -1 ______________________________________________________________ -2 Factory Preset clamping force when expanded to 7.62 (.300) 556N (125lbs) ________________________________________________________ P 645N (145lbs) ________________________________________________________ P1 None __________________________________________________________ [blank] P Part Number Code Example: LE260-2.80TM2-1P1 Series LE260 five piece lever actuated Card-Lok with extractor feature, 71.12 (2.80) long with M2 x .40 tapped mounting holes, -1 lever direction and factory preset for 645N (145lbs) clamping force when expanded to .300 DIM. MOUNTING METHOD TABLE Code Letter [blank] "T0" "TM2" "TM2.5" Method 2-56 tapped hole 0-80 tapped hole M2 x 0.40 tapped hole M2.5 x 0.45 tapped hole www.calmark.com * 800-854-7086 41