INSTALLATION (continued)
1--3
Functional Test
The FunctionalTest consists of three checks: manual
operation, voltage checks,and electrical operation.
Do these checks in the order presented to
avoid damaging theautomatic transfer switch.
Read all instructions on the Wiring Diagram and labels
affixed to the automatic transferswitch. Note the
control features that are provided and review their
operation before proceeding.

1 – Manual Operation Test

A detachable maintenance handle is provided on the frame
of the TransferSwitch for mai ntenance purposes only.
Manual operation of the transferswitch should be
checked before it is energized (operated electrically).
Do not manually operate the transfer switch
until both power sources are disconnected:
open both circuit breakers.
TableB. Maintenance handle positions.
ATS Position Indicators
Normal
E
N
OPEN
uppercontacts open
CLOSED
lowercontacts closed
Emergency
E
N
CLOSED
uppercontacts closed
OPEN
lowercontacts open
Turncounterclockwise
to Emergency.
Turn c lock wise
to Normal.
insert
handle
into hole
Grasp
handle
firmly
slide hub
onto shaft
Figure 1-3. Maintenance handle.
1. After deenergizingboth power sources, open the
enclosure door. Locate and removethe mainte-
nance handle and hub stored on the transfer switch
frame. Then install the hub onto the center operator
shaft and insert the handle firmly into the hole in
the side of the hub (spring fully compressed). See
Figure 1–3 and 1–4 and TableB.
2. If the transfer switch is closed on Normal (window
shows CLOSED), grasp handle firmlyand turn it
counterclockwise. The transfer switch should operate
smoothly without binding. If it does not, check for
shipping damage or construction debris.
3. Turn the handle clockwise to return the transfer switch
to the Normal position. Observe that the window
indicators (left side) show the top shaft OPEN and the
bottom shaft CLOSED.
Note: If Normal and Emergency connections are
reversed this operation is also reversed.
4. Remove the maintenancehandle and hub and store it
ontheframeintheplaceprovided.
Verifythat the maintenance handle has
been removed before proceeding!
Now continue to 2–VoltageChecksonnext page.
clockwise DOWN closes
the Normal source contacts
(lower) and opensthe
Emergency source
contacts (upper)
counterclockwise DOWN
closes the Emergency
source contacts (upper)
and opens the Normal
source contacts (lower)
window
indicators
OPEN or
CLOSED
Emergency
contacts
Normal
contacts
contact position
indicators (left side)
Figure 1-4. Contact position indicatorsand maintenance handle operation.