Eaton IZM97 Instruction Manual page 47

(I) Cable kits
(J) M3 x6 tapping screw (3)
(K) Tension spring
(L) Hexagonal pin
(M) Tripper bar (use separately if needed)
N ote: when used individually, it can be replaced by the
existing old version tripper bar
(N) Tripper bar screw
(P) Adapting panel
(Q) Pin mounting screw
(S) Adapting panel screw
B ( )
C ( )
( ) J
( ) E
D ( )
Figure 1. Contents of kits
Section 2: Installation of key interlock
Proceed with the following 16 steps:
Step1: To remove the circuit breaker front cover. Remove the
hexagonal mounting screws (four for 3 pole breakers and six
for 4 pole breakers) from the front cover using a 10 mm 1/4-
inch socket wrench. Then pull down on the charging handle
and retain it by 45° angle to remove the front cover.
Step 2: Remove the plug from the key lock hole. If there is
no hole, drill a 1-7/16-inch (36mm) hole from the cover using
an existing taper drill to install the operation indicator. Use a
hole saw, for example, Starrett # KAVH0176.
Figure 2. Step 1 and Step 2
New generation IZM97, 99 low voltage air circuit breaker instruction manual MN013010EN February 2020 www.eaton.com.cn
( M )
H ( )
(
N ( )
G ( )
R ( )
( ) F
( ) K
( ) S A ( )
( ) P
( ) L
Key lock hole,
position
Mounting screw
Step 3: The counter and operation spring need to be
removed if installed, and be kept properly for later installa-
tion. Remove the existing counter/lock mounting panel.
Operations counter
Figure 3. Step 3
Q )
Step 4: Install the interlock lever kit (A) into the shaft as
shown.
) I (
Shaft
Figure 4. Step 4
Step 5: Put the bearing bush (C) onto the key lock, and make
sure to install the key lock along the lock panel direction
using the hexagon nut provided. Ignore the other hardware
supplied with the key lock - ferrules, small hexagon nuts, and
cams.
Ronis key lock (B)
Figure 5. Step 5
Section 4: Accessory devices
Mounting panel
Interlock lever kit (A)
Metal spring lever of
interlocking lever kit
installed behind the
circuit breaker rocker
Circuit breaker lever
Hexagonal nut removed
from the key lock
Bearing bush (C)
Ronis key lock (B)
43