2P-LK.16006.007 - 2-Power

40 www.calmark.com •800-854-7086

SERIES LE260 - “CARD-LOK” RETAINER (EXTRACTING/LEVER-LOK)

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

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-A-

8625 Type III, Class 2

ADJUSTMENT SCREW

Material:

Stainless Steel per ASTM-A582\QQ-S-763

Finish:

Passivate per Mil-S-5002

Locking element per Mil-F-18240

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)

Recommended Gap:

Board Module Assembly

thickness plus 7.62 (.300)

Cold Plate

Board

Module

Assembly

Square

Flatwasher

Shaft may be riveted,

screwed or bonded

to Board Module Assembly

Wedges

Spring

Washer

Stack

Adjustment

Screw

Lever

Arm

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LE260 - 3.80 T0 -1 P

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 __________________________________________________________

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Part Number Code

Series LE260 Card-Lok Five Piece

SERIES LE260 - “CARD-LOK” RETAINER (EXTRACTING/LEVER-LOK)

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 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 Method

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2-56 tapped hole

“T0” 0-80 tapped hole

“TM2” M2 x 0.40 tapped hole

“TM2.5” M2.5 x 0.45 tapped hole

Assembly Length

Capable of

expansion range

of 6.86 (.270) to

8.26 (.325).

Adjustment

required to an

exact dimension

within this

range.

6.86

(.270)

max.

6.35 (.250)

2.67 (.105) Assembly Length + 16.5 (.65) when fully relaxed and unadjusted.

Dimension will shorten by 5.3 (.21) when adjusted.

-1 Shown

-2 Opposite

4.95 (.195) Ref. M/2 ± .13 (.005)

2.38 (.094)

Hex Socket Cap

Per ANSI/ASME

B18.3

3.31 (1.305)

3.63 (1.43)

13.29 (.527)

Units: mm (in)

Unless specified otherwise,

.xx = ± .25, .x = ±.5

(.xxx = ± .010, .xx = ± .02)

M = Assembly Length

minus 48.26 (1.90) ± .13 (.005)