Eaton Power Defense 32-NF, Instruction Leaflet

Page: 8 / 11

8
Instruction Leaflet IL0131080EN
Effective January 2019
3-way multi-family drawout cable interlock kit - type 32 - NF
EATON
www.eaton.com
Step 8
This step describes how to adjust the cables to ensure proper
functionality of the cable interlock setup . Cable adjustments are
made with the large bulkhead nuts ONLY and with all breakers
OPEN . Nuts on the rod ends should not be moved .
Begin by adjusting or verifying that the threaded section of all
bulkhead fittings are approximately centered on the cable mounting
brackets, allowing for room to adjust in either direction . Hand tighten
the nuts at this time .
Perform initial adjustments on the driven (long rod) end of cable
until the gaps identified in Figure 12 through Figure 15 are as
specified . Figure 12 through Figure 15 show the position of the
interlock assembly driven “And” lever based on the state of the
interconnected breakers .
Lever plate
Gap ø
Connected
breaker open
Figure 12. Driven “And” lever position with interconnected
breakers open
Lever plate
Gap
0–4 mm
Connected
breaker closed
Connected
breaker open
Gap
0–2 mm
Figure 13. Driven “And” lever position with interconnected push
breaker open and pull breaker closed
Lever plate
Gap
0–4 mm
Connected
breaker open
Gap ø
Connected
breaker closed
Figure 14. Driven “And” lever position with interconnected push
breaker closed and pull breaker open
Lever plate
Connected
breaker closed
Figure 15. Driven “And” lever position with interconnected
breakers closed
If there is too much clearance , adjust both bulkhead nuts to retract
the cable housing (move threaded portion down) .
If there is
no clearance , advance the cable housing in the same
manner (move threaded portion up) .
If
additional adjustment length is needed, the bulkhead nuts on
the other (drive) end of cable can be used .
When the proper clearance is attained on the driven end, torque
both cable bulkhead nuts to 11–13 N·m (100–120 in-lb) without
moving the bulkhead fittings .
After the driven end has been adjusted and the bulkhead nuts have
been tightened, perform adjustments on the drive (short rod) end
of the cable . Adjust the bulkhead nuts up (move threaded portion
down) such that the gap between the drive lever and the interlock
assembly base shown on Figure 10 is less than 8 mm .
When the gap is less than 8 mm, torque the cable bulkhead nuts on
both ends to 11–13 N·m (100–120 in-lb) .