INSTALLATION (continued)
1 --- 3
Functional Test
The Functional Test consists of three checks: manual
operation, voltage checks, and electrical operation.
Do these checks in the order presented to
avoid damaging the automatic transfer switch.
Read all instructions on the Wiring Diagram and labels
affixed to the automatic transfer switch. Note the control
features that are provided and review their operation
before proceeding.
1 – Manual Operation Test
A detachab l e manual operator handl e is provided on the
Trans fer Switch for maintenanc e purposes only
.Manual
operation of the transfer switch should be checked before
it is energi zed (operated electrically).
Do not manually operate the transfer switch
until both power sources are disconnected:
open both circuit breakers.
1. Insert the mai ntenance handle int o the hole in the
shaft, left side of the operator.
2. Move the maintenanc e handle as show n to man uall y
operate the transfer switch. The switch should operate
smoothl y without any binding. If it does not, check for
shipping damage or construction debris.
3. Return the transfer switc h to the N (normal) position.
4. R emove the maintenance handle and store it on the
trans fer switc h in the pla c e prov ide d.
Verify that the maintenance handle has
been remo ved before proceeding!
Now continue to 2–VoltageCheckson next page.
maintenance
handle
shaft
hole
Figure 1-4. Removable maintenance handle on
260 and 400 amp. E–design trans fer switches.
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