ERICO LENTON LOCK User Manual
INSTRUCTION SHEET
LENTON® LOCK
B-Series
Figure 1
Rebar Size
Maximum Rebar Shear
Lip Diameter (A)
in mm
10 or 12 (#4)
0.57 14.5
14 or 16 (#5)
0.73 18.5
18 or 20 (#6)
0.93 23.5
22 (#7)
1.08 27.5
25 (#8)
1.16 29.4
28 or 30 (#9)
1.32 33.5
32 (#10)
1.48 37.5
34 or 36 (#11)
1.67 42.5
38 or 40
1.83 46.5
43 (#14)
2.07 52.5
57 (#18)
2.62 66.5
Figure 3 Solid contact between bar and stop pin as shown.
Step 3
is made with the center
must be flush against cent er stop pin.
Step 4 for coupler sizes 12(#4) – 36(#11):
For rebar sizes 40 through 57(#18), follow ‘
the next page.
For Caltrans Ultimate performance on sizes 32(#10) and 36(#11),
also follow ‘
To avoid bolts from vibrating loose, it is suggested that each bolt
be pre
prior to applying final bolt torque.
Tighten bol ts, beginning in the cent er of the couple r and working
to the outside (A to D). A standard wrench, impact wrench or nut
runner may be utilized to tighten the bolts.
Figure 1 Assembly cross section
Figure 2 Maximum shear lip
A B C D
D C B A
TIGHTEN
TIGHTEN
Step 1:
commencing splicing. Ensure the LENTO
sized properly for the bars being spliced and per project plans.
Product should arrive with bolts configured as s hown in Figure 1.
One round point bolt should be on each end for sizes 10 (#3)
through 40mm. Two round point bolts should
sizes 43 (#14) and 57 (#18).
Step 2:
slurry, rust, etc. which may affect product performance. Ensure
maximum rebar lip does not exceed limits set in Figure 2.
Excessive shear l
*When using an air impact wrench it is recommended to use a wrench with double the torque rating identified. Impact sockets should always be used when using an
Read all instructions and procedures before
N® LOCK coupler is
be on each end for
Ensure the rebar is free of any excessive dirt, concrete
ip interferes with rebar installation.
: Insert rebar into LENTON LOCK coupler until contact
stop pin as shown in Figure 3. Rebar
Alternate step 4’ on
Alternate step 4’ on the next page.
impact wrench. Additionally, check the air pressure and air flow requirements prior to installation. Refer to complete installation instructions provided with the product or
available at
www.erico.com prior to commencing installation.
-torqued (Approximately <50% is recommended torque)
WARNING
1. ERICO products shall be installed and used only as indicated in ERICO product instruction sheets and training materials. Instruction sheets are available at www.erico.com and from your ERICO customer
service representative.
2. ERICO products must never be used for a purpose other than the purpose for which they were designed or in a manner that exceeds specified load ratings.
3. All instructions must be completely followed to ensure proper and safe installation and performance.
4. Improper installation, misuse, misapplication or other failure to completely follow ERICO’s instructions and warnings may cause product malfunction, property damage, serious bodily injury and death.
The customer is responsible for:
a. Conformance to all governing codes.
b. The integrity of structures to which the products are attached, including their capability of safely accepting the loads imposed, as evaluated by a qualified engineer.
c. Using appropriate industry standard hardware as noted above.
SAFETY INSTRUCTIONS:
All governing codes and regulations and those required by the job site must be observed. Always use appropriate safety equipment such as eye protection, hard hat, and gloves as appropriate to the application.
www.erico.com ERICO International Corporation
CADDY, CADWELD, CRITEC, ERICO, ERIFLEX, ERITECH and LENTON are registered trademarks of E RICO International Corporation
INSTRUCTION SHEET
Rebar Designation Coupler Socket Size
Pre Torque
(all bolts if required)
Average Torque to
Shear Bolts
Number of
Bolts
In-lb Metric Canada
Soft
Metric
in mm ft-lb N-m ft-lb N-m
#10 32 - 32 LL32B1 13/16 21 400 545 500 680 8
- 34 - - LL36B1 13/16 21 400 545 550 750 10
#11 36 35 M 36 LL36B1 13/16 21 400 545 550 750 10
- 38 - - LL40B1 13/16 21 400 545 580 790 12
- 40 - - LL40B1 13/16 21 400 545 580 790 12
#14 43 45 M 43 LL43B1 1 25 675 915 960 1300 14
#18 57 55 M 57 LL57B1 1 25 675 915 960 1300 18
Alternate Step 4:
Alternate Step 4 is
Pre
and finish tightening the bol
bolt
tightening of the bo
If bolt head does not shear, the installer should verify the appropriate torque was met (see Table 2). If a minimum cover must
Repeat procedure for other end of the sleeve.
Shear Bolts
of Bolts
Metric
-
10 - 10
LL12B1
1/2
13
150
205
6
#4
12
10 M
13
LL12B1
1/2
13
150
205
6 - 14 - -
LL16B1
1/2
13
150
205
6
#5
16
15 M
16
LL16B1
1/2
13
150
205
6 - 18 - -
LL20B1
1/2
13
150
205
8
#6
20
20 M
19
LL20B1
1/2
13
150
205
8
#7
22
-
22
LL22B1
5/8
16
250
340
8
#8
25
25 M
25
LL25B1
5/8
16
350
475
8
#9
28
30 M
29
LL28B1
5/8
16
350
475
10
-
30
-
-
LL28B1
5/8
16
350
475
10
Table 1. Torque values for coupler sizes #4 (12mm) through #9 (30mm)
Pre-Torque is not required for these sizes
Rebar Designation Coupler Socket Size
In-lb Metric Canada
Soft
Average Torque to
in mm ft-lb N-m
Number
-torque the bolts beginning in the center of the coupler and working to the outside (A to D). See table 2. Then go back to bolt A
shears off when the proper torque is achieved. A standard wrench, impact wrench or nut runner may be utilized for the final
required for sizes 40 through 5 7(#18), and for Caltrans Ultimate requirements sizes 32(#10) and 36(#11).
ts, once again beginning in the center of the coupler a nd working to the outside (A to D). T he head of the
lts.
Table 2. Alternate Step 4: Two-step torque sequence for coupler sizes 32(#10) and larger
be maintained, the head can be cut off after the proper torque has been applied.
If during installation the bolt strips, as defined by a loss of resistance to the applied to rque, stop the installation immediately.
Remove the un-sheared damaged bolt. Contact ERICO for LENTON Technical Support
Transition Splices: LENTON LOCK is designed for use as a one -step transition/reducer splice on all types of rebar.
Contact ERICO for details.
Closure Pour Splices: Refer to instruction sheet PDF113 for details. Additional copies of instructions and application
information are available at www.erico.com
www.erico.com ERICO International Corporation
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