background image

RF25109HL Series 20 BB Orbit Block

Lashing Head User Instructions

 (cont.)

USER INFORMATION - RF25109HL Series 20 BB Orbit Block™ Lashing Head User Instructions

Page 2.

1.2 ATTACHMENT AT 90° (IN-LINE)

1.3 END ATTACHMENT

1.4 LARGE DIAMETER OBJECT ATTACHMENT

1.2.1

 

Pass the lashing 

line down through 

the head, out 

through the cheek 

and through the hub.

1.3.1 

Pass the lashing 

line down through 

the head and out 

through the cheek.

Where attachment to a large diameter object, wider than the head of the block, is required 

(eg. a boom) the lashings must cross each other between the head of the block and the object. 

Four strands of lashing are required to prevent the block twisting and creating a poor lead. The 

strands from one side of the block should be to the outside and the strands from the other 

side passing between them. See diagram 1.4.3.

1.2.2

 Pass lashing 

line in through the 

opposite cheek and 

back up through the 

head.

1.3.2 

Pass lashing 

line through the hub.

1.2.3

  Loop lashing 

line over the fixing 

point. Pass back 

down through the 

head and out the 

same cheek it last 

passed through.

1.3.3 

Pass lashing 

line in through the 

opposite cheek and 

back up through the 

head.

1.2.4

 Pass lashing line 

through the hub, in 

through opposite cheek 

and up through the head. 

Repeat steps 1.2.1 to 1.2.3 

if more than one strand is 

required.

1.3.4 

To finish attachment 

tie a bowline above 

the block. Note: Knot 

must be a non-slipping 

(non-tightening) knot.

1.2.5

 Finish lashing 

with appropriate 

knot, splice or 

whipping.

1.3.5 

For the ultimate 

clean finish use an 

eye splice.

OR

Summary of Contents for BB Orbit Block 20 Series

Page 1: ...vided e g 1 7 2mm passed through multiple times The RF25109HL Series 20 Orbit Block is supplied with 750mm 30 of 2mm 3 32 diam single braid Dyneema lashing line For best results the lashing must be attached to a mounting point with a smooth well rounded profile Avoid attaching directly to fittings with sharp edges or rough surfaces that may damage the lashing through abrasion or point loading For ...

Page 2: ...ating a poor lead The strands from one side of the block should be to the outside and the strands from the other side passing between them See diagram 1 4 3 1 2 2 Pass lashing line in through the opposite cheek and back up through the head 1 3 2 Pass lashing line through the hub 1 2 3 Loop lashing line over the fixing point Pass back down through the head and out the same cheek it last passed thro...

Page 3: ...eets up to 3mm 1 8 It is possible for the lashing to be used as the becket and sheet line also 2 0 BECKET OPTIONS 2 2 LASHING USED AS BECKET FOR SHEETS 4 6MM 5 32 1 4 2 2 1 Pass the lashing line down through the head out through the cheek and through the hub 2 2 2 Loop under the bottom of the block and again though the hub 2 2 3 Repeat step 2 2 2 if more than one loop is required to meet the desir...

Page 4: ...and grit to ensure optimum performance and service life Blocks in particular the bearing areas should be flushed with fresh water regularly and periodically cleaned with a mild detergent and water Dry lubricants such as Ronstan Sailfast silicon spray may be used to lubricate the bearing system Oil petrochemical based lubricants must not be used Ronstan Orbit Blocks are designed and manufactured fo...

Reviews: