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INSTALLATION SHEET

Midrange Control Blocks, Track and Trim Caps 

Control Blocks: 

1631, 1632, 1633; 

Track:

 R27, 1602, R27HB; 

Trim Caps:

 1621, 1622

Read Instructions Before You Cut or Mount Track

To cut track to length, make sure stop holes for control blocks do not  

interfere with hole for mounting track. If necessary, cut both ends of track.

Cut Track

Mount Track

Through-bolt track per instructions provided with track.

Deadending Line at End Control

Remove any burrs on edges of track. Press 1621 or 1622 trim caps in place.

Install Control Blocks

1602, 1616, 1617 

Use 20 mm screws.

1618 

Use 35 mm screws.

Position control block flush with end of track. Drive screw firmly  

against top surface to mark track, then loosen. Slide control block away.

IMPORTANT: Drill 

21

/

64

" (8.5 mm) hole only through top suface of track.

 

Do not use screw hole in control block as drill guide.

19 mm 

(

3

/

4

")

83 mm (3

1

/

4

")

Drill size

 

8.5 mm (

21

/

64

")

To determine correct track length, make sure track ends, without trim caps, 

are 19 mm (

3

/

4

") from edge of cockpit coaming.

Secure control block to track by tightening correct screw into hole.

Install Trim Caps

.

No

Yes

Cockpit Installation

IMPORTANT: Insert loop down from above.

It might be necessary to put trim caps, control blocks, and traveler car on 

track before mounting. Slide control assemblies onto track with bumper 

facing car. Keep control assembly loose so it can be moved out of the way 

while installing track.

USA

 

 

Tel:

 (+1) 262-691-3320 • 

Web:

 www.harken.com • 

Email:

 [email protected] 

Italy

 

 

Tel:

 (+39) 031.3523511 • 

Web:

 www.harken.it • 

Email:

 [email protected]

WARNING! Strictly follow all instructions to avoid an accident, 

damage to your vessel, personal injury, or death. See  

www.harken.com/manuals for additional safety information.

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