Belimo ZG-JSL User manual

Preliminary Steps
1. Verify all the parts listed before installing
the linkage.
2. Choose an actuator from one of the series
listed below. There is a torque reduction
when using the ZG-JSL linkage. Verify
application requirements before use.
* ZG-121 adapter must be used with EF.
** GM/GK not for use with 1/2" shafts.
*** K6-1 clamp must be used with LF.
3. Determine proper location to install the
linkage onto the damper’s jackshaft. Verify
that there are no obstructions and that the
damper blades do not collide with the
linkage. If available, refer to the damper
manufacturer’s dimensional drawings; the
dimensions of the shaft bearings and
damper blades are usually published.
ZG-JSL Kit Includes:
• Jackshaft Linkage
• "L" Shaped Anti-Rotation Bracket
• Adapter Plate for Anti-Rotation Bracket
• Actuator Anti-Rotation Plate
• Hardware Bag (screws, V-bolt, nuts,
clamp insert, insert holder and bearing sleeve)
• Instruction Sheet
Mounting Installation Instructions
ZG-JSL(A)
®
70756-00001.B
Actuator Torque Reduction
EF Series* 239 in-lbs
AF Series 166 in-lbs
Classic AF Series 123 in-lbs
NF Series 87 in-lbs
LF Series*** 33 in-lbs
GM/GK Series** 288 in-lbs
AM Series 166 in-lbs
NM Series 87 in-lbs
Technical Data
Materials:
Housing
Bearings
Shafts
galvanized steel
GF Delrin
steel
Weight 3.25 lbs [1.47 kg]
1

2
Installation Instructions
Preliminary Steps
®
5
4b
4c
4a. Verify the diameter of the jackshaft. The
maximum diameter this linkage can
accommodate is 1.05”. The linkage will
come factory pre-set for 1” shafts.
4b. The linkage comes with a reversible metal
insert for centering on ½” and ¾” shafts.
4c. When using a 3/4" shaft with an EF, GM,
or GK actuator, use bearing sleeve.
5. Once the insert is turned to the desired
shaft size, install the plastic insert holder
as shown.

3
®
Hole Designation # Belimo Actuator Series
1 EF Series
1 AF Series
2 AFX / NFX Series
3 GM/GK Series
4 LF Series
5 AM Series
6 NM Series
6a. After selecting the actuator, the anti-
rotation plate will need to be repositioned.
Loosen the two metal screws. Line up the
two threaded holes on the base plate with
the corresponding holes of the actuator.
Holes are clearly marked by a numeric digit
on the anti-rotation plate. See chart for hole
designations.
6b. When used with the EF, the ZG-121 should
be installed as shown. ZG-121 sold
separately.
7. Verify that the opened-ended shaft of the
linkage is in the correct position. Almost all
dampers operated by jackshafts open when
the jackshaft is turned in the counter-
clockwise (CCW) direction. Make sure the
shaft is turned completely clockwise (CW).
For CW rotation, turn the shaft all the way
CCW (or to the right). Verify the position, by
the clamp itself or the small indicator below
the shaft.
Note: Find a suitable location on the
jackshaft to install the linkage. Either end
of the jackshaft will work, as long as it
does not interfere with the bearing or
operation of the damper.
CCW
Rotation
CW
Rotation
7
6a
Installation Instructions
Preliminary Steps
6b
ZG-121

®
4
12
4
3
1. Place the open end of the linkage
underneath the jackshaft.
2. Slip the jackshaft into the open end
until it meets the clamp.
3. Holding the linkage in position, insert the
supplied V-bolt from the other end.
4. Hand tighten nuts only to hold the clamp in
position and prevent it from rotating.
Standard Mounting
Installation Instructions
Quick-Mount Visual Instruction for Mechanical Installation

5
®
5. With the linkage in place, secure it to the
damper frame with the anti-rotation “L”
bracket. The bracket can rotate to any angle.
If necessary, use the additional adapter plate
for smaller bearings. Screw the adapter plate
into the “L” bracket, as shown, with the flat
head screws.
6. Install the “L” bracket with or without the
adapter plate to the shaft bearing bracket,
using the self tapping screws.
Note: Some adjustments may be needed
to properly align with the anti-rotation
bracket. This involves loosening the two
nuts holding the V-bolt in place. This
allows the linkage to slide on the
jackshaft, enabling the tab of the anti-
rotation bracket to be properly attached.
7. With the "L" bracket attached, slide the
ZG-JSL linkage over until the tab on the
bracket meets up with the slot on the linkage.
5
Optional
6a
6b 7
Installation Instructions
Quick-Mount Visual Instruction for Mechanical Installation

6
®
Installation Instructions
Quick-Mount Visual Instruction for Actuator Installation
12
3
Standard Actuator Mounting
1. With the linkage set in either CW or CCW
format, install the actuator with the V-bolt
and clamp. Align the screw on the anti-
rotation bracket with the slot of the Belimo
actuator as shown. Assembling an actuator
onto the linkage can be done before or after
the linkage is installed onto the jackshaft. It
is recommended to assemble the actuator
onto the linkage first. Use caution when
installing the linkage with the actuator
because of the added weight and handling.
Note: Refer to the damper manufacturers
recommendations before tandem
mounting ZG-JSL linkages.
2. Once the actuator is in place, tighten the nuts.
Ensure even tightening to prevent slippage.
3. Ensure all nuts are properly tightened and
secured. The linkage and actuator are now
installed on the damper shaft.

The linkage can also be configured to have the
actuator mounted horizontally.
For this configuration, loosen the two screws holding
the actuator anti-rotation plate to the linkage.
Reposition it + 90 degrees from its original position.
Reattach the plate using the two corresponding
threaded holes on the base plate.
Installation Instructions
®
Space Saving Configurations
The actuator anti-rotation plate can be fastened
from either side and as shown. The location of the
holes is determined by the actuator, as shown on
page 3.
7

Belimo worldwide: www.belimo.com
®
Subject to change. © Belimo Aircontrols (USA), Inc.
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