Modulift MOD CLS User Instructions Download Page 2

User Instructions

Should you find your equipment is no longer of use, 
please dispose of in a responsible manner. Please 
contact Modulift if you need further guidance

© Copyright 2017 Modulift.  
All rights reserved.

MOD CLS

MOD CLS US JULY 2017

Assembly Procedure

Each lifting beam clamp will be supplied fully assembled.  

Individual clamps are not to be dismantled.

Remove stopper bolts and push each lifting beam clamp 

through the open-end section of the beam, ensuring that 

the lug plate is orientated the correct way as shown in 

Fig. 4

Replace stopper bolts and nuts on top and bottom flanges 

at each end of the beam. Tighten to a torque of 30 lbf.ft

For additional safety, always ensure the 

red locking bolt

 

on each clamp is tightened to a torque of 30 lbf.ft and the 

clamp is secure, once in the correct position on the beam 

for your desired lifting configuration.

Always fit at least one 

red safety stop

 to each clamp (see 

Fig. 

3

). Tighten bolt to a torque of 30 lbf.ft before lifting. For ease 

of visibility, fit all 

red safety stops

 to one side of the beam

Always ensure the 6.5t Lifting Beam Clamps are fitted to 

the top of the beam and the 4.75t Lifting Beam Clamps are 

fitted to the bottom of the beam.

If in any doubt please contact Modulift.

Do’s & Don’ts

Always have the safety stopper bolts or studs tightened with 

nuts on both top and bottom flanges and at both ends of the 

beam before commencing any lifts.

Do not hang any loads directly from the beam section, always 

lift from shackles on the beam clamps.

Do ensure that the clamp lug plate is always being pulled 

towards the body of the clamp, never away from the body of 

the clamp (see 

Fig. 4

 and 

Fig. 5

).

Do ensure the 

red locking bolt

 on each clamp is tightened 

to a torque of 30 lbf.ft prior to any lift.

Do ensure at least one 

red safety stop

 is fitted to each clamp 

(see 

Fig. 3

). For arrangement (iii) 

Fig.3

, always check 

red 

safety stop

 is attached to the nearest beam hole to the clamp. 

Tighten bolt to a torque of 30 lbf.ft prior to any lift. For ease of 

visibility, fit all 

red safety stops

 to one side of the beam

Do ensure that the lift is stable. Never carry out unstable lifts.

Do ensure that the load and the beam (either loaded  

or unloaded) both lift level by positioning the bottom 

clamps in the correct location (depending on clamp lug plate 

orientation, a maximum of 6 degrees of tilt is permitted).

Never stand beneath the suspended load or lifting beam 

(either loaded or unloaded).

Do ensure that the beam flange and the clamps are free of 

grease or excessive water where they clamp together.

Check that there is no  

deformation or distortion  

on the clamps before any  

lift. In case of deformation or distortion,  

the relevant part must be discarded and  

replaced. Always check and ensure  

that the arms of the collar plates are  

parallel and not deformed (refer to 

Fig. 6

).

Check collar  

plate arms are 

parallel and  

not deformed

Fig. 6 – Collar plate

WARNING!

Personnel using this system should be suitably trained, 

competent and have a clear understanding of Safe  

Slinging procedures.

The use of Modulift equipment must be in accordance with 

the procedures laid down in  ‘ASME B30.20 – 2013’.

Never exceed stated beam WLL

 (adhere to

 Table 3

 WLL for 

configuration used) or clamps WLL (see MOD CLS specification). 

The top sling length is critical to the safe use of the beam 

when used on the semi-spreader configuration. 

Do not 

have less than 60° BSA sling angles

.

Ensure that clamp lug plates are always being pulled 

towards the body of the clamp (as shown in 

Fig. 4

), never 

away from the body of the clamp (as shown in 

Fig. 5

).  

Always ensure the 

red locking bolt

 on each clamp is  

tightened to a torque of 30 lbf.ft before lifting.

Always fit at least one 

red safety stop

 to each clamp (see 

Fig. 

3

). Tighten bolt to a torque of 30 lbf.ft before lifting. For ease 

of visibility, fit all 

red safety stops

 to one side of the beam.

Ensure that the beam is lifting level whenever possible. 

Never allow the beam to tilt more than 6 degrees from 

the horizontal plane

 (Please refer to LEEA COPSULE). In 

case of tilt, ensure that the clamp lug plates are orientated 

so that the tilt angle pulls the clamp lug plate towards the 

body of the clamp, never away from the body of the clamp.

Always ensure that the lift is stable. Please note that for a 

lifting beam configuration the height increment between 

beam pivoting points shall not exceed 19.7

"

, as shown in 

Fig. 2

 (1 top lug). If in any doubt please contact Modulift.

Modulift UK Ltd

 

tel:

 011 44 1202 621511 

email:

 [email protected] 

www.modulift.com

  Page 2 of 4

Table 3 – WLL v Span (in metric tons)

Semi-Spreader configuration (2 top lugs, Fig. 1)

Lifting Beam configuration (1 top lug, Fig. 2)

WLL (t)

A – Top Clamp Span (ft)

<1½

3

10

13

16

19½

B – B

ott

om Span (f

t)

<1½

8.5

8

7

3.5

2

1.25

0.8

3

8

8.5

8

4.5

2.5

1.5

0.9

7.5

8

8.5

7

3.25

1.75

1

10

4.25

5.5

8

8.5

5.25

2.5

1.25

13

2.25

3

4.5

8

8

4

1.75

16

1.25

1.75

2.25

3.75

7

7.5

2.5

19½

0.9

1

1.25

2

2.75

4.25

5.25

If your exact spans are not noted in the table, then please round the 

spans up or down to the values that will give you the lowest SWL.

Contact Modulift if you need a specific WLL value for a specific span or 

arrangement not covered on the tables above.

B – Bottom Span (ft)

≤ 6½ ≤ 10 ≤ 13 ≤ 16 ≤ 19½

WLL (in metric tons)

6.2

3.75

2.25

1.25

0.8

Fig. 4 – Correct orientation  

of lug plates

Fig. 5 – Incorrect orientation  

of lug plates

60°  

Minimum

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