Filter
Top Products
INSTALLATION (continued)
1--4
Inspection 1
Do not force the Isolation Handle. Be sure that
the sensing lead isolation contacts do not hit the
male stabs head on, but rather slide on them.
!
stab
sensing lead contact
isolation contacts
IS
TS
Figure 1 –5. Isolation contacts i n TEST position.
Move ATS from DISCONNECTED To TEST Position
(without electrical power)
Action Turn the Isolation Handle (Figure 1–3) clockwise approximately 7 or 8 turns.
Observe
The Transfer Switch should be pulled inward; the sensing lead isolation
contacts should make with the male stabs as shown in Figure 1–5.
Inspection 2
Do not force the Isolation Handle. Be sure that
the isolation contact fingers make w ith the male
stabs on both sides
in the CONNECTED position.
!
IS TS
Figure 1–6. Isolation contacts CONNECTED
(CLOSED).
Move ATS From TEST To CONNECTED Position
(without electrical power)
Action
With solenoid latch interference t ag in place (Figure 1–2), continue slowly
turning the Isolation Handle clockwise u ntil it stops (approximately 6 or 7
turns). Now remove the interference tag from the solenoid latch.
Observe
The Transfer Switch should be pulled inward; the isolation contact fingers
should make with the male stabs as shown in Figure 1–6. Also check that
the Bypass Switch switched neutral contacts have opened (Figure 1–4).
Inspection 3
Be sure that the isolation contacts disconnect
in the TEST position; the sensing lead contacts
should still touch the male stabs.
!
IS TS
Figure 1–7. Isolation contacts back in TEST position.
Move ATS From CONNECTED Back To TEST Position
(without electrical power)
Action
Turn the Isolation Handle (Figure 1–3) back counterclockwise until the
isolation contacts separate (approximately 6 or 7 turns).
Observe
The Transfer Switch should be pushed outward; the isolation contacts
should disconnect, but the sensing lead contacts should remain touching
asshowninFigure1–7.
If all inspections are satisfactory connect harness plugs J2 and J5. Proceed to the Function Test.